User:CaradhrasAiguo/Climo/D.C. tables
Appearance
Year representations
[edit]Weather Bureau site, 24th and M NW
[edit]Climate data for Washington, D.C.–Weather Bureau, 1889,[1] Cwa | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 66 (19) |
54 (12) |
70 (21) |
83 (28) |
93 (34) |
90 (32) |
92 (33) |
90 (32) |
86 (30) |
82 (28) |
70 (21) |
72 (22) |
93 (34) |
Mean daily maximum °F (°C) | 46.6 (8.1) |
37.5 (3.1) |
51.7 (10.9) |
63.5 (17.5) |
74.8 (23.8) |
79.1 (26.2) |
83.4 (28.6) |
81.3 (27.4) |
73.4 (23.0) |
60.9 (16.1) |
53.2 (11.8) |
54.9 (12.7) |
63.4 (17.4) |
Mean daily minimum °F (°C) | 31.7 (−0.2) |
24.7 (−4.1) |
35.1 (1.7) |
45.3 (7.4) |
54.5 (12.5) |
62.4 (16.9) |
68.1 (20.1) |
63.6 (17.6) |
57.9 (14.4) |
44.1 (6.7) |
39.3 (4.1) |
36.3 (2.4) |
46.9 (8.3) |
Record low °F (°C) | 23 (−5) |
4 (−16) |
29 (−2) |
32 (0) |
39 (4) |
48 (9) |
59 (15) |
55 (13) |
42 (6) |
34 (1) |
27 (−3) |
22 (−6) |
4 (−16) |
Average precipitation inches (mm) | 4.05 (103) |
2.47 (63) |
4.20 (107) |
9.13 (232) |
10.69 (272) |
5.01 (127) |
8.13 (207) |
3.07 (78) |
3.88 (99) |
4.48 (114) |
6.03 (153) |
0.19 (4.8) |
61.33 (1,559.8) |
Average snowfall inches (cm) | 3.0 (7.6) |
3.5 (8.9) |
0.5 (1.3) |
4.0 (10) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
trace | trace | 0 (0) |
11.0 (28) |
Average precipitation days (≥ 0.01 in) | 11 | 8 | 14 | 18 | 18 | 16 | 15 | 10 | 15 | 10 | 17 | 7 | 159 |
Average snowy days (≥ 0.1 in) | 1 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 |
Source: NOAA |
Climate data for Washington, D.C.–Weather Bureau, 1899,[2] Dfa/Cfa | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 60 (16) |
61 (16) |
72 (22) |
82 (28) |
90 (32) |
97 (36) |
94 (34) |
96 (36) |
94 (34) |
80 (27) |
72 (22) |
67 (19) |
97 (36) |
Mean daily maximum °F (°C) | 42.2 (5.7) |
35.6 (2.0) |
50.1 (10.1) |
65.4 (18.6) |
74.9 (23.8) |
84.5 (29.2) |
86.4 (30.2) |
83.6 (28.7) |
76.4 (24.7) |
68.5 (20.3) |
55.4 (13.0) |
46.0 (7.8) |
64.1 (17.8) |
Mean daily minimum °F (°C) | 24.6 (−4.1) |
19.1 (−7.2) |
34.3 (1.3) |
42.7 (5.9) |
53.8 (12.1) |
64.1 (17.8) |
66.7 (19.3) |
66.0 (18.9) |
55.3 (12.9) |
48.5 (9.2) |
35.2 (1.8) |
26.4 (−3.1) |
44.7 (7.1) |
Record low °F (°C) | −1 (−18) |
−15 (−26) |
19 (−7) |
27 (−3) |
42 (6) |
53 (12) |
54 (12) |
58 (14) |
41 (5) |
32 (0) |
24 (−4) |
3 (−16) |
−15 (−26) |
Average precipitation inches (mm) | 4.12 (105) |
6.17 (157) |
4.94 (125) |
1.54 (39) |
2.53 (64) |
2.46 (62) |
6.06 (154) |
3.77 (96) |
6.14 (156) |
2.80 (71) |
1.81 (46) |
1.68 (43) |
44.02 (1,118) |
Average snowfall inches (cm) | 8.3 (21) |
35.2 (89) |
4.5 (11) |
trace | 0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
1.8 (4.6) |
49.8 (126) |
Average precipitation days (≥ 0.01 in) | 14 | 18 | 12 | 4 | 14 | 7 | 12 | 13 | 10 | 7 | 5 | 9 | 125 |
Average snowy days (≥ 0.1 in) | 5 | 9 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 17 |
Source: NOAA |
Climate data for Washington, D.C.–Weather Bureau, 1904,[3] Dfa | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 62 (17) |
63 (17) |
73 (23) |
81 (27) |
89 (32) |
94 (34) |
92 (33) |
92 (33) |
90 (32) |
86 (30) |
68 (20) |
60 (16) |
94 (34) |
Mean daily maximum °F (°C) | 35.4 (1.9) |
36.8 (2.7) |
50.6 (10.3) |
59.2 (15.1) |
75.8 (24.3) |
80.3 (26.8) |
83.4 (28.6) |
81.4 (27.4) |
77.2 (25.1) |
65.3 (18.5) |
52.1 (11.2) |
38.8 (3.8) |
61.4 (16.3) |
Mean daily minimum °F (°C) | 19.6 (−6.9) |
20.0 (−6.7) |
33.8 (1.0) |
40.2 (4.6) |
54.2 (12.3) |
61.7 (16.5) |
65.4 (18.6) |
63.2 (17.3) |
57.6 (14.2) |
42.9 (6.1) |
34.1 (1.2) |
23.0 (−5.0) |
43.0 (6.1) |
Record low °F (°C) | 3 (−16) |
2 (−17) |
20 (−7) |
28 (−2) |
43 (6) |
50 (10) |
55 (13) |
52 (11) |
36 (2) |
28 (−2) |
25 (−4) |
6 (−14) |
2 (−17) |
Average precipitation inches (mm) | 2.62 (67) |
1.65 (42) |
3.02 (77) |
2.98 (76) |
2.64 (67) |
5.49 (139) |
6.25 (159) |
2.97 (75) |
5.34 (136) |
2.35 (60) |
2.20 (56) |
3.33 (85) |
40.84 (1,039) |
Average snowfall inches (cm) | 16.5 (42) |
1.8 (4.6) |
trace | trace | 0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
4.0 (10) |
13.2 (34) |
35.5 (90) |
Average precipitation days (≥ 0.01 in) | 13 | 10 | 14 | 12 | 7 | 13 | 20 | 12 | 4 | 3 | 8 | 11 | 127 |
Average snowy days (≥ 0.1 in) | 8 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 | 20 |
Source: NOAA |
Climate data for Washington, D.C.–Weather Bureau, 1918,[4] Dfa | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 50 (10) |
69 (21) |
79 (26) |
81 (27) |
93 (34) |
96 (36) |
96 (36) |
106 (41) |
87 (31) |
83 (28) |
72 (22) |
67 (19) |
106 (41) |
Mean daily maximum °F (°C) | 29.8 (−1.2) |
47.0 (8.3) |
59.4 (15.2) |
62.8 (17.1) |
80.6 (27.0) |
80.6 (27.0) |
84.8 (29.3) |
87.6 (30.9) |
74.8 (23.8) |
71.3 (21.8) |
55.1 (12.8) |
48.1 (8.9) |
65.2 (18.4) |
Mean daily minimum °F (°C) | 17.6 (−8.0) |
26.6 (−3.0) |
37.4 (3.0) |
43.6 (6.4) |
58.5 (14.7) |
61.0 (16.1) |
64.1 (17.8) |
67.7 (19.8) |
53.7 (12.1) |
49.8 (9.9) |
37.5 (3.1) |
35.1 (1.7) |
46.1 (7.8) |
Record low °F (°C) | 1 (−17) |
−2 (−19) |
23 (−5) |
31 (−1) |
42 (6) |
51 (11) |
53 (12) |
53 (12) |
42 (6) |
34 (1) |
25 (−4) |
24 (−4) |
−2 (−19) |
Average precipitation inches (mm) | 4.29 (109) |
0.83 (21) |
5.04 (128) |
6.58 (167) |
2.35 (60) |
2.06 (52) |
3.79 (96) |
1.88 (48) |
2.79 (71) |
0.86 (22) |
1.48 (38) |
4.65 (118) |
36.60 (930) |
Average snowfall inches (cm) | 25.1 (64) |
1.5 (3.8) |
trace | 3.0 (7.6) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
trace | 29.6 (75) |
Average precipitation days (≥ 0.01 in) | 14 | 8 | 12 | 14 | 9 | 14 | 14 | 12 | 9 | 6 | 4 | 10 | 126 |
Average snowy days (≥ 0.1 in) | 10 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 |
Source: NOAA |
Climate data for Washington, D.C.–Weather Bureau, 1930,[5] Cwa | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 70 (21) |
84 (29) |
75 (24) |
91 (33) |
95 (35) |
97 (36) |
106 (41) |
102 (39) |
98 (37) |
84 (29) |
71 (22) |
56 (13) |
106 (41) |
Mean daily maximum °F (°C) | 43.4 (6.3) |
51.6 (10.9) |
55.3 (12.9) |
63.3 (17.4) |
78.3 (25.7) |
86.2 (30.1) |
91.6 (33.1) |
87.8 (31.0) |
87.0 (30.6) |
66.3 (19.1) |
54.2 (12.3) |
42.1 (5.6) |
67.3 (19.6) |
Mean daily minimum °F (°C) | 27.9 (−2.3) |
32.2 (0.1) |
34.7 (1.5) |
43.0 (6.1) |
56.3 (13.5) |
64.0 (17.8) |
69.3 (20.7) |
65.9 (18.8) |
65.2 (18.4) |
46.0 (7.8) |
39.2 (4.0) |
29.3 (−1.5) |
47.8 (8.7) |
Record low °F (°C) | 6 (−14) |
7 (−14) |
21 (−6) |
34 (1) |
45 (7) |
45 (7) |
56 (13) |
55 (13) |
52 (11) |
31 (−1) |
14 (−10) |
15 (−9) |
6 (−14) |
Average precipitation inches (mm) | 2.85 (72) |
1.64 (42) |
2.26 (57) |
3.12 (79) |
1.81 (46) |
3.19 (81) |
2.30 (58) |
0.62 (16) |
0.76 (19) |
0.28 (7.1) |
0.79 (20) |
2.04 (52) |
21.66 (549.1) |
Average snowfall inches (cm) | 16.3 (41) |
1.5 (3.8) |
trace | trace | 0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
trace | 2.5 (6.4) |
20.3 (52) |
Average precipitation days (≥ 0.01 in) | 11 | 7 | 6 | 6 | 8 | 8 | 8 | 5 | 4 | 4 | 12 | 7 | 86 |
Average snowy days (≥ 0.1 in) | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 8 |
Source: NOAA |
Climate data for Washington, D.C.–Weather Bureau, 1934,[6] Dwa | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 69 (21) |
50 (10) |
78 (26) |
84 (29) |
95 (35) |
101 (38) |
100 (38) |
92 (33) |
87 (31) |
81 (27) |
78 (26) |
68 (20) |
101 (38) |
Mean daily maximum °F (°C) | 46.5 (8.1) |
33.5 (0.8) |
51.0 (10.6) |
64.1 (17.8) |
77.1 (25.1) |
86.7 (30.4) |
90.2 (32.3) |
82.7 (28.2) |
78.1 (25.6) |
65.8 (18.8) |
58.8 (14.9) |
44.7 (7.1) |
64.9 (18.3) |
Mean daily minimum °F (°C) | 31.5 (−0.3) |
15.6 (−9.1) |
31.4 (−0.3) |
43.7 (6.5) |
55.9 (13.3) |
67.6 (19.8) |
71.4 (21.9) |
65.5 (18.6) |
63.1 (17.3) |
46.6 (8.1) |
40.4 (4.7) |
29.9 (−1.2) |
46.9 (8.3) |
Record low °F (°C) | 8 (−13) |
−6 (−21) |
16 (−9) |
34 (1) |
47 (8) |
61 (16) |
62 (17) |
49 (9) |
52 (11) |
35 (2) |
27 (−3) |
17 (−8) |
−6 (−21) |
Average precipitation inches (mm) | 1.97 (50) |
3.22 (82) |
4.18 (106) |
2.27 (58) |
3.85 (98) |
2.87 (73) |
2.88 (73) |
5.21 (132) |
17.45 (443) |
0.75 (19) |
3.58 (91) |
2.91 (74) |
51.14 (1,299) |
Average snowfall inches (cm) | trace | 18.1 (46) |
9.1 (23) |
trace | 0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
trace | 3.0 (7.6) |
30.2 (77) |
Average precipitation days (≥ 0.01 in) | 10 | 9 | 16 | 10 | 12 | 10 | 7 | 9 | 15 | 5 | 11 | 8 | 122 |
Average snowy days (≥ 0.1 in) | 10 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 19 |
Source: NOAA |
National Airport (KDCA)
[edit]Climate data for Washington, D.C.–National, 2011,[7] Cfa | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 59 (15) |
77 (25) |
80 (27) |
86 (30) |
98 (37) |
102 (39) |
104 (40) |
100 (38) |
87 (31) |
83 (28) |
73 (23) |
63 (17) |
104 (40) |
Mean daily maximum °F (°C) | 39.7 (4.3) |
51.3 (10.7) |
54.0 (12.2) |
68.6 (20.3) |
77.4 (25.2) |
87.9 (31.1) |
93.6 (34.2) |
88.6 (31.4) |
77.6 (25.3) |
66.5 (19.2) |
61.5 (16.4) |
52.6 (11.4) |
68.3 (20.1) |
Mean daily minimum °F (°C) | 27.6 (−2.4) |
32.2 (0.1) |
37.2 (2.9) |
49.0 (9.4) |
59.3 (15.2) |
69.6 (20.9) |
75.4 (24.1) |
71.3 (21.8) |
64.9 (18.3) |
50.2 (10.1) |
43.3 (6.3) |
37.4 (3.0) |
51.5 (10.8) |
Record low °F (°C) | 17 (−8) |
19 (−7) |
27 (−3) |
36 (2) |
46 (8) |
59 (15) |
67 (19) |
63 (17) |
49 (9) |
34 (1) |
33 (1) |
29 (−2) |
17 (−8) |
Average precipitation inches (mm) | 2.25 (57) |
2.12 (54) |
4.40 (112) |
3.20 (81) |
1.70 (43) |
1.68 (43) |
3.03 (77) |
8.92 (227) |
8.84 (225) |
3.91 (99) |
1.94 (49) |
4.90 (124) |
46.89 (1,191) |
Average snowfall inches (cm) | 7.3 (19) |
0.5 (1.3) |
0.2 (0.51) |
trace | 0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
trace | 0 (0) |
trace | 8.0 (20) |
Average precipitation days (≥ 0.01 in) | 10 | 10 | 13 | 14 | 11 | 10 | 6 | 12 | 14 | 11 | 8 | 7 | 126 |
Average snowy days (≥ 0.1 in) | 6 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 |
Source: NOAA |
Climate data for Washington, D.C.–National, 2012,[8] Cfa | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 68 (20) |
72 (22) |
83 (28) |
89 (32) |
91 (33) |
104 (40) |
105 (41) |
98 (37) |
95 (35) |
84 (29) |
72 (22) |
72 (22) |
105 (41) |
Mean daily maximum °F (°C) | 49.3 (9.6) |
52.4 (11.3) |
66.4 (19.1) |
68.1 (20.1) |
80.1 (26.7) |
85.9 (29.9) |
93.1 (33.9) |
89.5 (31.9) |
80.7 (27.1) |
68.9 (20.5) |
54.9 (12.7) |
52.3 (11.3) |
70.1 (21.2) |
Mean daily minimum °F (°C) | 32.2 (0.1) |
36.3 (2.4) |
47.2 (8.4) |
48.5 (9.2) |
62.7 (17.1) |
66.6 (19.2) |
74.9 (23.8) |
72.4 (22.4) |
63.7 (17.6) |
53.0 (11.7) |
38.3 (3.5) |
38.4 (3.6) |
52.9 (11.6) |
Record low °F (°C) | 17 (−8) |
23 (−5) |
29 (−2) |
40 (4) |
52 (11) |
58 (14) |
67 (19) |
66 (19) |
53 (12) |
41 (5) |
31 (−1) |
29 (−2) |
17 (−8) |
Average precipitation inches (mm) | 2.19 (56) |
2.33 (59) |
1.02 (26) |
1.92 (49) |
3.28 (83) |
2.38 (60) |
2.81 (71) |
2.78 (71) |
4.29 (109) |
5.82 (148) |
0.60 (15) |
3.03 (77) |
32.45 (824) |
Average snowfall inches (cm) | 1.7 (4.3) |
0.3 (0.76) |
trace | 0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
trace | 0.2 (0.51) |
2.2 (5.6) |
Average precipitation days (≥ 0.01 in) | 10 | 10 | 11 | 10 | 13 | 5 | 12 | 13 | 10 | 10 | 5 | 13 | 122 |
Average snowy days (≥ 0.1 in) | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 |
Source: NOAA |
Climate data for Washington, D.C.–National, 2015,[9] Cfa | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 67 (19) |
68 (20) |
77 (25) |
84 (29) |
92 (33) |
96 (36) |
98 (37) |
96 (36) |
96 (36) |
79 (26) |
80 (27) |
71 (22) |
98 (37) |
Mean daily maximum °F (°C) | 42.6 (5.9) |
39.1 (3.9) |
54.5 (12.5) |
69.4 (20.8) |
82.7 (28.2) |
86.1 (30.1) |
89.1 (31.7) |
88.0 (31.1) |
83.5 (28.6) |
67.4 (19.7) |
62.0 (16.7) |
58.8 (14.9) |
68.6 (20.3) |
Mean daily minimum °F (°C) | 28.5 (−1.9) |
21.5 (−5.8) |
36.1 (2.3) |
49.4 (9.7) |
63.8 (17.7) |
70.1 (21.2) |
73.8 (23.2) |
70.5 (21.4) |
66.2 (19.0) |
50.3 (10.2) |
45.3 (7.4) |
43.5 (6.4) |
51.6 (10.9) |
Record low °F (°C) | 12 (−11) |
5 (−15) |
15 (−9) |
39 (4) |
51 (11) |
59 (15) |
66 (19) |
63 (17) |
55 (13) |
37 (3) |
32 (0) |
30 (−1) |
5 (−15) |
Average precipitation inches (mm) | 3.73 (95) |
1.68 (43) |
4.04 (103) |
3.41 (87) |
1.92 (49) |
11.94 (303) |
5.01 (127) |
1.16 (29) |
2.15 (55) |
3.04 (77) |
2.10 (53) |
4.84 (123) |
45.02 (1,144) |
Average snowfall inches (cm) | 3.6 (9.1) |
9.8 (25) |
4.9 (12) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
18.3 (46.1) |
Average precipitation days (≥ 0.01 in) | 11 | 9 | 12 | 14 | 6 | 18 | 13 | 6 | 4 | 7 | 10 | 13 | 123 |
Average snowy days (≥ 0.1 in) | 5 | 7 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 |
Source: NOAA |
Climate data for Washington, D.C.–National, 2016, Cfa | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 62 (17) |
65 (18) |
79 (26) |
86 (30) |
88 (31) |
96 (36) |
100 (38) |
101 (38) |
98 (37) |
87 (31) |
83 (28) |
68 (20) |
101 (38) |
Mean daily maximum °F (°C) | 42.5 (5.8) |
47.6 (8.7) |
63.1 (17.3) |
67.0 (19.4) |
71.3 (21.8) |
85.2 (29.6) |
91.2 (32.9) |
91.7 (33.2) |
83.4 (28.6) |
71.5 (21.9) |
62.0 (16.7) |
49.2 (9.6) |
68.8 (20.5) |
Mean daily minimum °F (°C) | 27.3 (−2.6) |
32.2 (0.1) |
44.0 (6.7) |
46.7 (8.2) |
56.5 (13.6) |
67.2 (19.6) |
74.3 (23.5) |
73.7 (23.2) |
68.6 (20.3) |
54.7 (12.6) |
43.1 (6.2) |
34.4 (1.3) |
51.9 (11.1) |
Record low °F (°C) | 15 (−9) |
13 (−11) |
29 (−2) |
30 (−1) |
45 (7) |
53 (12) |
64 (18) |
67 (19) |
59 (15) |
41 (5) |
32 (0) |
17 (−8) |
13 (−11) |
Average precipitation inches (mm) | 2.68 (68) |
3.79 (96) |
1.16 (29) |
2.05 (52) |
5.65 (144) |
3.68 (93) |
3.13 (80) |
2.79 (71) |
2.50 (64) |
0.90 (23) |
0.76 (19) |
2.61 (66) |
31.70 (805) |
Average snowfall inches (cm) | 18.8 (48) |
3.1 (7.9) |
0.3 (0.76) |
trace | 0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
trace | 22.2 (56) |
Average precipitation days (≥ 0.01 in) | 8 | 12 | 11 | 12 | 19 | 7 | 12 | 4 | 8 | 7 | 5 | 9 | 114 |
Average snowy days (≥ 0.1 in) | 4 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 |
Source: NOAA |
Climate data for Washington, D.C.–National, 2017,[10] Cwa | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 72 (22) |
77 (25) |
80 (27) |
91 (33) |
93 (34) |
95 (35) |
98 (37) |
92 (33) |
92 (33) |
86 (30) |
78 (26) |
65 (18) |
98 (37) |
Mean daily maximum °F (°C) | 48.5 (9.2) |
57.6 (14.2) |
56.5 (13.6) |
72.9 (22.7) |
73.9 (23.3) |
86.4 (30.2) |
90.0 (32.2) |
84.6 (29.2) |
80.8 (27.1) |
73.6 (23.1) |
58.5 (14.7) |
46.3 (7.9) |
69.1 (20.6) |
Mean daily minimum °F (°C) | 35.7 (2.1) |
37.8 (3.2) |
37.9 (3.3) |
54.7 (12.6) |
57.1 (13.9) |
68.2 (20.1) |
73.4 (23.0) |
70.2 (21.2) |
64.2 (17.9) |
56.2 (13.4) |
41.1 (5.1) |
32.1 (0.1) |
52.4 (11.3) |
Record low °F (°C) | 15 (−9) |
23 (−5) |
22 (−6) |
39 (4) |
46 (8) |
56 (13) |
63 (17) |
62 (17) |
53 (12) |
43 (6) |
26 (−3) |
16 (−9) |
15 (−9) |
Average precipitation inches (mm) | 2.75 (70) |
0.68 (17) |
3.19 (81) |
2.62 (67) |
5.55 (141) |
1.13 (29) |
9.15 (232) |
4.58 (116) |
1.43 (36) |
2.02 (51) |
2.00 (51) |
0.50 (13) |
35.60 (904) |
Average snowfall inches (cm) | 1.4 (3.6) |
trace | 2.0 (5.1) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
1.9 (4.8) |
5.3 (13) |
Average precipitation days (≥ 0.01 in) | 13 | 5 | 14 | 10 | 15 | 5 | 10 | 11 | 4 | 9 | 9 | 6 | 111 |
Average snowy days (≥ 0.1 in) | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 7 |
Source: NOAA |
Climate data for Washington, D.C.–National, 2018[11] Cwa | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 68 (20) |
82 (28) |
78 (26) |
86 (30) |
91 (33) |
95 (35) |
98 (37) |
94 (34) |
95 (35) |
90 (32) |
76 (24) |
67 (19) |
98 (37) |
Mean daily maximum °F (°C) | 44.7 (7.1) |
53.6 (12.0) |
51.9 (11.1) |
64.7 (18.2) |
81.5 (27.5) |
84.5 (29.2) |
88.5 (31.4) |
88.8 (31.6) |
81.8 (27.7) |
70.0 (21.1) |
53.0 (11.7) |
50.1 (10.1) |
67.8 (19.9) |
Mean daily minimum °F (°C) | 26.7 (−2.9) |
37.0 (2.8) |
35.3 (1.8) |
45.2 (7.3) |
63.4 (17.4) |
67.8 (19.9) |
72.8 (22.7) |
73.2 (22.9) |
69.1 (20.6) |
55.1 (12.8) |
40.1 (4.5) |
36.8 (2.7) |
51.9 (11.0) |
Record low °F (°C) | 8 (−13) |
17 (−8) |
31 (−1) |
34 (1) |
49 (9) |
56 (13) |
64 (18) |
63 (17) |
59 (15) |
38 (3) |
28 (−2) |
26 (−3) |
8 (−13) |
Average precipitation inches (mm) | 0.94 (24) |
4.79 (122) |
1.92 (49) |
3.59 (91) |
8.73 (222) |
5.21 (132) |
9.73 (247) |
5.19 (132) |
9.73 (247) |
3.06 (78) |
7.57 (192) |
5.82 (148) |
66.28 (1,684) |
Average snowfall inches (cm) | 1.2 (3.0) |
0.2 (0.51) |
4.5 (11) |
trace | 0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
1.4 (3.6) |
0 (0) |
7.3 (19) |
Average precipitation days (≥ 0.01 in) | 7 | 15 | 9 | 9 | 12 | 11 | 8 | 12 | 16 | 9 | 12 | 11 | 131 |
Average snowy days (≥ 0.1 in) | 2 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 6 |
Source: NOAA |
Climate data for Washington, D.C.–National, 2019[12] (Cfa) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 64 (18) |
74 (23) |
79 (26) |
84 (29) |
93 (34) |
96 (36) |
99 (37) |
98 (37) |
98 (37) |
98 (37) |
69 (21) |
67 (19) |
99 (37) |
Mean daily maximum °F (°C) | 44.3 (6.8) |
50.0 (10.0) |
55.4 (13.0) |
72.2 (22.3) |
79.5 (26.4) |
85.2 (29.6) |
90.9 (32.7) |
88.8 (31.6) |
85.7 (29.8) |
72.4 (22.4) |
53.9 (12.2) |
49.4 (9.7) |
69.0 (20.5) |
Mean daily minimum °F (°C) | 30.1 (−1.1) |
34.4 (1.3) |
38.1 (3.4) |
52.5 (11.4) |
62.5 (16.9) |
67.5 (19.7) |
73.3 (22.9) |
71.4 (21.9) |
67.3 (19.6) |
55.9 (13.3) |
38.2 (3.4) |
34.9 (1.6) |
52.2 (11.2) |
Record low °F (°C) | 10 (−12) |
18 (−8) |
22 (−6) |
34 (1) |
50 (10) |
54 (12) |
65 (18) |
64 (18) |
55 (13) |
44 (7) |
26 (−3) |
22 (−6) |
10 (−12) |
Average precipitation inches (mm) | 3.30 (84) |
3.52 (89) |
4.00 (102) |
2.24 (57) |
4.97 (126) |
4.27 (108) |
6.49 (165) |
1.99 (51) |
0.25 (6.4) |
6.66 (169) |
1.37 (35) |
3.28 (83) |
42.34 (1,075.4) |
Average snowfall inches (cm) | 11.5 (29) |
3.7 (9.4) |
0.3 (0.76) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0.4 (1.0) |
15.9 (40.16) |
Average precipitation days (≥ 0.01 in) | 11 | 11 | 10 | 10 | 13 | 13 | 12 | 7 | 5 | 8 | 8 | 12 | 120 |
Average snowy days (≥ 0.1 in) | 6 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 12 |
Source: NOAA |
Climate data for Washington, D.C.–National, 2020 | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 72 (22) |
65 (18) |
83 (28) |
81 (27) |
87 (31) |
93 (34) |
99 (37) |
— | — | — | — | — | 99 (37) |
Mean daily maximum °F (°C) | 49.8 (9.9) |
51.9 (11.1) |
62.1 (16.7) |
64.4 (18.0) |
72.3 (22.4) |
85.3 (29.6) |
92.7 (33.7) |
— | — | — | — | — | — |
Mean daily minimum °F (°C) | 35.0 (1.7) |
35.8 (2.1) |
44.3 (6.8) |
46.2 (7.9) |
55.2 (12.9) |
68.6 (20.3) |
75.0 (23.9) |
— | — | — | — | — | — |
Record low °F (°C) | 23 (−5) |
22 (−6) |
26 (−3) |
37 (3) |
37 (3) |
54 (12) |
71 (22) |
— | — | — | — | — | 22 (−6) |
Average precipitation inches (mm) | 2.79 (71) |
3.21 (82) |
2.31 (59) |
6.30 (160) |
2.49 (63) |
3.51 (89) |
6.51 (165) |
— | — | — | — | — | — |
Average snowfall inches (cm) | 0.2 (0.51) |
trace | 0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
— | — | — | — |
Average precipitation days (≥ 0.01 in) | 8 | 14 | 16 | 16 | 12 | 8 | 12 | — | — | — | — | — | — |
Average snowy days (≥ 0.1 in) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | — | — | — | — |
Source: NOAA |
Extremes by month with date of occurrence
[edit]Highest daily temperatures
[edit]
|
Lowest daily temperatures[edit]
|
Daily record warm minima
[edit]
|
Daily record cold maxima[edit]
|
Highest averages
[edit]
|
Lowest averages[edit]
|
Lowest precip[edit]
|
Highest precip[edit]
|
Highest snow
[edit]Period | Record most snowfall | Year |
---|---|---|
Year | 49.8 in (126 cm) | 1899 |
Seasonal (July–June) | 56.1 in (142 cm) | 2009–10 |
Spring (March–May) | 19.3 in (49 cm) | 1914 |
Autumn (September–November) | 11.5 in (29 cm) | 1987 |
Winter (December–February) | 56.1 in (142 cm) | 2009–10 |
January | 31.5 in (80 cm) | 1922 |
February | 35.2 in (89 cm) | 1899 |
March | 19.3 in (49 cm) | 1914 |
April | 5.5 in (14 cm) | 1924 |
May–September | 0 | – |
October | 2.2 in (5.6 cm) | 1925 |
November | 11.5 in (29 cm) | 1987 |
December | 16.6 in (42 cm) | 2009 |
Least snow
[edit]Period | Record | Year (or most recent) |
---|---|---|
Year | 0.5 in (1.3 cm) | 1998 |
Seasonal (July–June) | 0.1 in (0.25 cm) | 1998–99 1972–73 |
Winter (December–February) | 0.1 in (0.25 cm) | 1998–99 1972–73 |
January | trace | 2006 and over 10 other years |
February | 0 | 1977 |
December | 0 | 2018 2015 2001 1994 1991 1972 1889 1888 |
Miscellaneous streaks
[edit]These are calendar days. Actual hourly streaks can extend into adjacent calendar day(s)
Daily maxima at or above
[edit]- ≥100 °F (37.8 °C): 4 days
- 5–8 Jul 2012
- 19–22 Jul 1930
- ≥95 °F (35.0 °C): 11 days
- 28 Jun–8 Jul 2012
- ≥90 °F (32.2 °C): 21 days
- 29 Jul–18 Aug 1988
- 25 Jul–14 Aug 1980
- ≥86 °F (30.0 °C): 45 days[14]
- 12 Jun–26 Jul 1994
- ≥80 °F (26.7 °C): 84 days
- 6 Jun–28 Aug 1872
Daily minima at or above
[edit]- ≥80 °F (26.7 °C): 5 days
- 16–20 Jul 2013
- ≥75 °F (23.9 °C): 18 days
- 26 Jul–12 Aug 1980
- ≥70 °F (21.1 °C): 35 days
- 5 Jul–8 Aug 2016
- >32 °F (0 °C) (frost-free): 275 days
- 14 Mar–13 Dec 1980
Daily maxima at or below
[edit]- ≤32 °F (0 °C): 12 days
- 23 Jan–3 Feb 1936
- 3–14 Feb 1895
- <20 °F (−6.7 °C): 6 days
- 29 Dec 1917–3 Jan 1918
Daily minima at or below
[edit]- ≤32 °F (0 °C): 48 days
- 27 Dec 1976–12 Feb 1977
- <20 °F (−6.7 °C): 19 days
- 4–22 Jan 1893
- <10 °F (−12.2 °C): 7 days
- 9–15 Feb 1899
Relative to normal
[edit]The normal temperature on 29 Feb is interpolated as the average of the values of 28 Feb and 1 Mar.
- Below 1981–2010 normal daily mean temperature: 44 days
- 23 Jan–7 Mar 1905
- Above 1981–2010 normal daily mean temperature: 35 days
- 14 Jan–17 Feb 1990
Precipitation
[edit]- Without measurable (0.01 in or 0.25 mm): 34 days
- 15 Sep–18 Oct 2007
- Measurable: 15 days
- 27 Apr–11 May 2016
- ≥1.00 in (25 mm): 4 days
- 23–26 Sep 1975
- Between 1-inch daily rainfall: 283 days
- 18 Jun 1930–27 Mar 1931
- ^ 1889:
- Most annual measurable precipitation days
- ^ 1899:
- All-time record low
- Snowiest month
- ^ 1904:
- Coldest annual mean, annual mean minimum
- ^ 1918:
- Coldest monthly mean, mean maximum
- All-time record high
- ^ 1930:
- Driest year by both total precipitation and measurable precipitation days
- All-time record high
- ^ 1934:
- Coldest monthly mean minimum
- Wettest month by total precipitation
- ^ 2011:
- Hottest month (by all three average metrics)
- ^ 2012:
- Warmest year (by all three average metrics)
- Warmest March by mean and mean minimum
- June record high
- ^ 2015:
- Warmest May by monthly mean and mean minimum
- Warmest December (by all three average metrics)
- ^ 2017:
- Warmest February (by all three average metrics)
- Warmest April (by all three average metrics)
- ^ 2018:
- Wettest year by total precipitation
- Hottest September mean minimum
- ^ 2019:
- October record high
- ^ a b c d "NOWData - NOAA Online Weather Data". NOAA. Retrieved 27 June 2020.
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