Climate of South Carolina
South Carolina has a humid subtropical climate, with hot summers throughout most of the state. But, an exception does occur in the Blue Ridge Mountains, as outlier pockets of an Oceanic Climate do exist. Mild winters predominate in the eastern and southern part of the state, but cool to occasionally cold winters are the standard in the northwestern area of the state, especially areas at or above 600 feet in elevation. On average, between 40 and 80 inches (1,000 and 2,000 mm) of precipitation falls annually across the state, potentially even in excess of 100 inches in portions of the Appalachian temperate rainforest. Tropical cyclones, and afternoon thunderstorms due to hot and humid conditions, contribute to precipitation during the summer and sometimes fall months, while extratropical cyclones contribute to precipitation during the fall, winter, and spring months. The coast experiences nearly all of their tropical weather impacts from storms coming directly from the Atlantic coast. The northwestern area of the state can receive impacts from both Atlantic basin storms moving westward from the coast and also occasionally very heavy rainfall and flooding from storms originating from the Gulf of Mexico that move inland towards the northeast after making landfall from the Florida Panhandle to Louisiana.
Tornadoes happen mostly in the spring, with a secondary peak in November. Hail and damaging winds often occur in summertime thunderstorms. Tornadoes are very uncommon in the summer unless a tropical disturbance were to spawn one.
Temperatures
[edit]The USDA Hardiness Zones for South Carolina range from Zone 7B (5°F to 10°F) in the extreme northwest portion of the state, to Zone 9B (25°F to 30°F) along the southeastern coast.
South Carolina has a humid subtropical climate (Köppen climate classification Cfa), although high elevation areas in the "Upstate" area have less subtropical characteristics than areas on the Atlantic coastline. In the summer, South Carolina is hot and humid with temperatures during the day averaging near 90 °F (32 °C) across most of the state with overnight lows near 70 °F (21 °C). Winter temperatures are much less uniform. Coastal areas of the state have very mild winters with high temperatures averaging about 60 °F (16 °C) and overnight lows close to 38 °F (3 °C). Further inland in the Piedmont, temperatures average between 50 °F (10 °C) during the day and 32 °F (0 °C) at night.
| Event | Measurement | Date | Location | County |
|---|---|---|---|---|
| Highest temperature[1][2] | 113 °F (45.0 °C) | June 29, 2012 | USC Columbia | Richland |
| Lowest temperature[3][4] | −19 °F (−28.3 °C) | January 21, 1985 | Caesars Head | Greenville |
Precipitation
[edit]
While precipitation is abundant the entire year in almost the entire state, the coastline tends to have a slightly wetter summer, while inland March tends to be the wettest month. During the cold season, extratropical cyclones is the main cause of precipitation, while during the summer, tropical cyclones and thunderstorms forming due to afternoon heating are the main causes of precipitation. A lee side rain shadow from the Appalachian Mountains lowers annual precipitation across central portions of the state.[5] Inland sections average 40 inches (1,000 mm) to 50 inches (1,300 mm) of rainfall, while near the coast 50 inches (1,300 mm) to 60 inches (1,500 mm), and the Piedmont receives 70 inches (1,800 mm) to 80 inches (2,000 mm) of precipitation.[6] Winter precipitation is determined in large by the El Niño-Southern Oscillation. During El Niño events, the jet stream is further south and east across the U.S., thus leading to cooler and wetter winters in South Carolina, while La Niña keeps the jet stream further north and west causing warmer and drier winters.
| Event | Measurement | Date | Location | County |
|---|---|---|---|---|
| Most precipitation in a year for a single area | 123.45 inches (3,136 mm) | 2018 [7] | Walhalla State Fish Hatchery | Oconee |
| Least precipitation in a year for a single area | 22.69 inches (58 cm)[citation needed] | ? |
| Event | Measurement | Date | Location | County |
|---|---|---|---|---|
| Greatest 24-hour rainfall[8][9][10] | 14.80 inches (376 mm) | September 16, 1999 | Myrtle Beach | Horry |
Snowfall and ice
[edit]
Annual snowfall across South Carolina varies greatly in frequency and amounts, from being quite rare with little to no accumulation in the southern coastal areas to being very common annually with 2 to 3 small snowfall events in the Upstate, particularly along and north of Interstate 85, which essentially is built along the 850 to 900 feet elevation contour. In the southern coastal area near and below Charleston, several years might pass without any measurable snowfall. In the Greenville, Spartanburg, and Anderson areas, total annual amounts range from 2 to 5 inches, with occasional annual totals reaching 8 or more inches (cumulatively). A year without at least one snow event in the Upstate is quite unusual. The Midlands is the least predictable area of the state in experiencing snowfall events. About 5 out of every 10 years, the region will have no snowfall at all; however in the 5 out of 10 years that the region receives snow, the accumulations are anywhere from under an inch to occasionally as much as 4 to 5 inches. The snowiest location in the state, above 2,000 feet in elevation, averages 12 inches (30 cm) of snow a year in the Blue Ridge Escarpment area. Freezing rain is more common than snow around and southeast of Columbia. Along the southern coastal barrier islands, frozen precipitation of any type is very rare, with only a few snow events on record.
| Event | Measurement | Date | Location | County |
|---|---|---|---|---|
| Greatest 24-hour snowfall[11] | 24 inches (61 cm) | February 10–11, 1973 | Rimini | Clarendon |
| Most snowfall from one storm [12] | 28.9 inches (73 cm) | February 15–17, 1969 | Caesars Head | Greenville |
Tropical cyclones
[edit]
The state is prone to tropical cyclones. This is an annual concern during hurricane season, which is from June through November. The peak time of vulnerability for the southeast Atlantic coast is from early August to early October when tropical cyclone frequency is highest.[13] Major hurricanes can impact the Palmetto state, though there are no category 5 impacts on record.[14] Two of the stronger hurricanes to strike South Carolina in recent times are Hurricane Hazel (1954) and Hurricane Hugo (1989), which were of category 4 strength. For weaker systems, rainfall and spin-up tornadoes in the outer bands are the main impacts to the state. The wettest known tropical cyclone to impact South Carolina was a tropical depression named Jerry in 1995 which stalled nearby and had previously been a tropical storm across Florida.[15] Jerry brought nearly 19 inches (480 mm) of rainfall to upstate South Carolina.[16]
| Event | Measurement | Date | Location | County |
|---|---|---|---|---|
| Wettest tropical cyclone[10] | 17.00 inches (432 mm) | Tropical Storm Jerry (1995) |
Antreville | Abbeville |
Thunderstorms and tornadoes
[edit]South Carolina averages around 64 days of thunderstorm activity per year. Most thunderstorms occur during the summer. South Carolina is vulnerable to tornadoes. Some notable tornadoes have struck South Carolina and the state averages around 14 tornadoes annually.[17] There have been no F-5/EF-5 tornadoes on record but over a dozen F-4/EF-4 tornadoes have occurred in many counties in South Carolina.
Monthly normals and extremes for select cities
[edit]| Climate data for Greenville, South Carolina (Greenville–Spartanburg Int'l), 1991–2020 normals,[a] extremes 1884–present[b] | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 82 (28) |
81 (27) |
91 (33) |
94 (34) |
100 (38) |
105 (41) |
107 (42) |
105 (41) |
101 (38) |
98 (37) |
86 (30) |
79 (26) |
107 (42) |
| Mean maximum °F (°C) | 70.3 (21.3) |
73.2 (22.9) |
81.2 (27.3) |
85.8 (29.9) |
90.6 (32.6) |
95.1 (35.1) |
97.3 (36.3) |
95.9 (35.5) |
92.1 (33.4) |
85.1 (29.5) |
77.0 (25.0) |
70.6 (21.4) |
98.3 (36.8) |
| Mean daily maximum °F (°C) | 52.8 (11.6) |
57.0 (13.9) |
64.4 (18.0) |
73.2 (22.9) |
80.3 (26.8) |
87.2 (30.7) |
90.3 (32.4) |
88.5 (31.4) |
82.7 (28.2) |
73.1 (22.8) |
62.9 (17.2) |
54.9 (12.7) |
72.3 (22.4) |
| Daily mean °F (°C) | 42.5 (5.8) |
45.9 (7.7) |
52.8 (11.6) |
61.0 (16.1) |
68.9 (20.5) |
76.3 (24.6) |
79.7 (26.5) |
78.4 (25.8) |
72.5 (22.5) |
61.7 (16.5) |
51.6 (10.9) |
44.8 (7.1) |
61.3 (16.3) |
| Mean daily minimum °F (°C) | 32.1 (0.1) |
34.8 (1.6) |
41.2 (5.1) |
48.7 (9.3) |
57.5 (14.2) |
65.5 (18.6) |
69.2 (20.7) |
68.3 (20.2) |
62.4 (16.9) |
50.4 (10.2) |
40.4 (4.7) |
34.8 (1.6) |
50.4 (10.2) |
| Mean minimum °F (°C) | 15.7 (−9.1) |
20.3 (−6.5) |
24.8 (−4.0) |
33.5 (0.8) |
43.7 (6.5) |
56.3 (13.5) |
63.0 (17.2) |
61.6 (16.4) |
50.6 (10.3) |
35.1 (1.7) |
26.1 (−3.3) |
21.1 (−6.1) |
13.7 (−10.2) |
| Record low °F (°C) | −6 (−21) |
−5 (−21) |
11 (−12) |
22 (−6) |
27 (−3) |
40 (4) |
53 (12) |
50 (10) |
32 (0) |
25 (−4) |
11 (−12) |
3 (−16) |
−6 (−21) |
| Average precipitation inches (mm) | 4.12 (105) |
3.84 (98) |
4.48 (114) |
4.04 (103) |
4.07 (103) |
3.90 (99) |
4.82 (122) |
4.66 (118) |
3.73 (95) |
3.59 (91) |
3.84 (98) |
4.58 (116) |
49.67 (1,262) |
| Average snowfall inches (cm) | 1.6 (4.1) |
1.0 (2.5) |
0.6 (1.5) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.1 (0.25) |
0.6 (1.5) |
3.9 (9.9) |
| Average precipitation days (≥ 0.01 in) | 10.4 | 9.4 | 10.2 | 9.7 | 9.7 | 10.8 | 12.0 | 11.1 | 8.0 | 7.1 | 8.5 | 10.0 | 116.9 |
| Average snowy days (≥ 0.1 in) | 1.1 | 0.7 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.4 | 2.6 |
| Average relative humidity (%) | 65.8 | 62.6 | 62.1 | 60.7 | 68.5 | 70.5 | 74.0 | 75.6 | 75.8 | 70.9 | 68.2 | 67.7 | 68.5 |
| Mean monthly sunshine hours | 176.6 | 182.7 | 236.2 | 264.7 | 269.2 | 270.8 | 267.8 | 253.9 | 229.2 | 235.2 | 184.3 | 169.4 | 2,740 |
| Percent possible sunshine | 56 | 60 | 64 | 68 | 62 | 62 | 61 | 61 | 62 | 67 | 59 | 55 | 62 |
| Source: NOAA (relative humidity 1962–1990, sun 1961–1990)[18][19][20] | |||||||||||||
| Climate data for Myrtle Beach (1991−2020 normals, extremes 1931–present) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 81 (27) |
86 (30) |
88 (31) |
92 (33) |
99 (37) |
104 (40) |
101 (38) |
104 (40) |
99 (37) |
93 (34) |
86 (30) |
84 (29) |
104 (40) |
| Mean daily maximum °F (°C) | 55.5 (13.1) |
57.8 (14.3) |
63.7 (17.6) |
71.5 (21.9) |
78.8 (26.0) |
84.5 (29.2) |
87.4 (30.8) |
86.5 (30.3) |
83.0 (28.3) |
75.6 (24.2) |
66.4 (19.1) |
58.6 (14.8) |
72.4 (22.4) |
| Daily mean °F (°C) | 44.5 (6.9) |
46.6 (8.1) |
52.7 (11.5) |
61.1 (16.2) |
69.3 (20.7) |
76.2 (24.6) |
79.5 (26.4) |
78.3 (25.7) |
74.0 (23.3) |
64.7 (18.2) |
54.3 (12.4) |
47.4 (8.6) |
62.4 (16.9) |
| Mean daily minimum °F (°C) | 33.6 (0.9) |
35.5 (1.9) |
41.8 (5.4) |
50.6 (10.3) |
59.7 (15.4) |
67.9 (19.9) |
71.6 (22.0) |
70.0 (21.1) |
65.0 (18.3) |
53.8 (12.1) |
42.2 (5.7) |
36.3 (2.4) |
52.3 (11.3) |
| Record low °F (°C) | 10 (−12) |
9 (−13) |
18 (−8) |
25 (−4) |
36 (2) |
48 (9) |
54 (12) |
54 (12) |
43 (6) |
25 (−4) |
16 (−9) |
10 (−12) |
9 (−13) |
| Average precipitation inches (mm) | 3.43 (87) |
3.76 (96) |
3.71 (94) |
3.38 (86) |
3.80 (97) |
4.85 (123) |
6.61 (168) |
6.27 (159) |
6.77 (172) |
4.11 (104) |
3.06 (78) |
3.81 (97) |
53.56 (1,360) |
| Source: NOAA[21][22] | |||||||||||||
| Climate data for Charleston Int'l, South Carolina (1991–2020 normals,[23] extremes 1938–present) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 83 (28) |
87 (31) |
90 (32) |
95 (35) |
101 (38) |
103 (39) |
104 (40) |
105 (41) |
99 (37) |
94 (34) |
88 (31) |
83 (28) |
105 (41) |
| Mean maximum °F (°C) | 76.7 (24.8) |
78.7 (25.9) |
84.2 (29.0) |
88.0 (31.1) |
93.0 (33.9) |
96.4 (35.8) |
97.7 (36.5) |
96.6 (35.9) |
92.9 (33.8) |
87.4 (30.8) |
82.2 (27.9) |
77.2 (25.1) |
98.9 (37.2) |
| Mean daily maximum °F (°C) | 60.2 (15.7) |
63.8 (17.7) |
70.1 (21.2) |
77.1 (25.1) |
83.6 (28.7) |
88.5 (31.4) |
91.3 (32.9) |
89.8 (32.1) |
85.4 (29.7) |
77.9 (25.5) |
69.4 (20.8) |
62.7 (17.1) |
76.6 (24.8) |
| Daily mean °F (°C) | 49.5 (9.7) |
52.7 (11.5) |
58.7 (14.8) |
65.8 (18.8) |
73.3 (22.9) |
79.4 (26.3) |
82.5 (28.1) |
81.4 (27.4) |
76.9 (24.9) |
67.8 (19.9) |
58.3 (14.6) |
52.2 (11.2) |
66.5 (19.2) |
| Mean daily minimum °F (°C) | 38.9 (3.8) |
41.6 (5.3) |
47.3 (8.5) |
54.5 (12.5) |
63.0 (17.2) |
70.4 (21.3) |
73.7 (23.2) |
73.1 (22.8) |
68.3 (20.2) |
57.7 (14.3) |
47.1 (8.4) |
41.6 (5.3) |
56.4 (13.6) |
| Mean minimum °F (°C) | 22.0 (−5.6) |
26.2 (−3.2) |
30.8 (−0.7) |
39.7 (4.3) |
50.2 (10.1) |
61.7 (16.5) |
68.2 (20.1) |
66.4 (19.1) |
57.0 (13.9) |
41.7 (5.4) |
31.7 (−0.2) |
26.0 (−3.3) |
20.3 (−6.5) |
| Record low °F (°C) | 6 (−14) |
12 (−11) |
15 (−9) |
29 (−2) |
36 (2) |
50 (10) |
58 (14) |
56 (13) |
42 (6) |
27 (−3) |
15 (−9) |
8 (−13) |
6 (−14) |
| Average precipitation inches (mm) | 3.37 (86) |
3.05 (77) |
3.35 (85) |
3.29 (84) |
3.32 (84) |
6.21 (158) |
6.60 (168) |
6.97 (177) |
6.01 (153) |
4.33 (110) |
2.66 (68) |
3.35 (85) |
52.51 (1,334) |
| Average snowfall inches (cm) | 0.2 (0.51) |
0.1 (0.25) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.3 (0.76) |
| Average precipitation days (≥ 0.01 in) | 8.9 | 8.5 | 8.2 | 7.9 | 8.1 | 12.1 | 13.2 | 13.1 | 10.2 | 7.3 | 6.9 | 9.3 | 113.7 |
| Average snowy days (≥ 0.1 in) | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 |
| Average relative humidity (%) | 69.8 | 67.4 | 68.1 | 67.5 | 72.5 | 75.1 | 76.6 | 78.9 | 78.2 | 74.1 | 72.7 | 71.6 | 72.7 |
| Average dew point °F (°C) | 36.0 (2.2) |
37.4 (3.0) |
44.8 (7.1) |
51.3 (10.7) |
61.0 (16.1) |
67.8 (19.9) |
71.4 (21.9) |
71.4 (21.9) |
66.9 (19.4) |
55.9 (13.3) |
47.5 (8.6) |
39.9 (4.4) |
54.3 (12.4) |
| Mean monthly sunshine hours | 179.3 | 186.7 | 243.9 | 275.1 | 294.8 | 279.5 | 287.8 | 256.7 | 219.7 | 224.5 | 189.5 | 171.3 | 2,808.8 |
| Percent possible sunshine | 56 | 61 | 66 | 71 | 69 | 65 | 66 | 62 | 59 | 64 | 60 | 55 | 63 |
| Average ultraviolet index | 2.4 | 3.6 | 5.4 | 7.3 | 8.5 | 9.3 | 9.5 | 8.6 | 6.9 | 4.7 | 2.9 | 2.2 | 5.9 |
| Source 1: NOAA (relative humidity and sun 1961–1990)[24][25][26] | |||||||||||||
| Source 2: UV Index Today (1995 to 2022)[27] | |||||||||||||
| Climate data for Charleston, South Carolina (Downtown), 1991–2020 normals,[23] extremes 1893–present | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 82 (28) |
83 (28) |
94 (34) |
94 (34) |
100 (38) |
104 (40) |
103 (39) |
103 (39) |
100 (38) |
95 (35) |
87 (31) |
81 (27) |
104 (40) |
| Mean maximum °F (°C) | 72.4 (22.4) |
74.8 (23.8) |
80.0 (26.7) |
83.8 (28.8) |
90.1 (32.3) |
93.4 (34.1) |
95.3 (35.2) |
93.9 (34.4) |
90.8 (32.7) |
85.2 (29.6) |
79.2 (26.2) |
74.3 (23.5) |
96.8 (36.0) |
| Mean daily maximum °F (°C) | 58.0 (14.4) |
60.3 (15.7) |
65.6 (18.7) |
72.3 (22.4) |
79.0 (26.1) |
84.3 (29.1) |
87.5 (30.8) |
86.4 (30.2) |
82.6 (28.1) |
75.6 (24.2) |
67.1 (19.5) |
60.9 (16.1) |
73.3 (22.9) |
| Daily mean °F (°C) | 50.8 (10.4) |
53.2 (11.8) |
58.8 (14.9) |
66.0 (18.9) |
73.5 (23.1) |
79.2 (26.2) |
82.3 (27.9) |
81.4 (27.4) |
77.6 (25.3) |
69.4 (20.8) |
60.1 (15.6) |
53.8 (12.1) |
67.2 (19.6) |
| Mean daily minimum °F (°C) | 43.6 (6.4) |
46.1 (7.8) |
52.0 (11.1) |
59.7 (15.4) |
68.0 (20.0) |
74.2 (23.4) |
77.1 (25.1) |
76.5 (24.7) |
72.5 (22.5) |
63.2 (17.3) |
53.1 (11.7) |
46.8 (8.2) |
61.1 (16.2) |
| Mean minimum °F (°C) | 28.6 (−1.9) |
32.3 (0.2) |
37.2 (2.9) |
46.1 (7.8) |
56.3 (13.5) |
67.1 (19.5) |
71.7 (22.1) |
70.8 (21.6) |
63.4 (17.4) |
48.6 (9.2) |
38.9 (3.8) |
33.1 (0.6) |
26.9 (−2.8) |
| Record low °F (°C) | 10 (−12) |
7 (−14) |
22 (−6) |
36 (2) |
45 (7) |
52 (11) |
61 (16) |
59 (15) |
50 (10) |
37 (3) |
17 (−8) |
12 (−11) |
7 (−14) |
| Average precipitation inches (mm) | 2.56 (65) |
2.56 (65) |
3.03 (77) |
2.96 (75) |
2.58 (66) |
4.85 (123) |
5.08 (129) |
6.11 (155) |
5.25 (133) |
4.07 (103) |
2.30 (58) |
2.91 (74) |
44.26 (1,124) |
| Average precipitation days (≥ 0.01 in) | 8.4 | 8.0 | 7.9 | 7.0 | 6.8 | 10.5 | 11.6 | 11.7 | 8.6 | 6.8 | 6.1 | 8.5 | 101.9 |
| Source: NOAA[24][28][29] | |||||||||||||
Statewide climate data
[edit]| Climate data for South Carolina | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 88 (31) |
89 (32) |
99 (37) |
99 (37) |
106 (41) |
113 (45) |
110 (43) |
110 (43) |
111 (44) |
103 (39) |
93 (34) |
89 (32) |
113 (45) |
| Record low °F (°C) | −19 (−28) |
−11 (−24) |
−8 (−22) |
17 (−8) |
28 (−2) |
37 (3) |
45 (7) |
45 (7) |
28 (−2) |
16 (−9) |
−1 (−18) |
−6 (−21) |
−19 (−28) |
| Source: "South Carolina Monthly Temperature Extremes". | |||||||||||||
Climate change
[edit]Climate change in South Carolina encompasses the effects of climate change, attributed to man-made increases in atmospheric carbon dioxide, in the U.S. state of South Carolina.
Studies show that South Carolina is among a string of "Deep South" states that will experience the worst effects of climate change.[30] According to the United States Environmental Protection Agency:
As of January 2020, "South Carolina's failure to develop a comprehensive climate plan means the state has no overall effort to cut greenhouse gas pollution, limit sprawl or educate the public on how to adapt to the changing climate."[32]South Carolina's climate is changing. Most of the state has warmed by one-half to one degree Fahrenheit (300-600 m°C) in the last century, and the sea is rising about one to one-and-a-half inches (2.5-3.8 cm) every decade. Higher water levels are eroding beaches, submerging low lands, and exacerbating coastal flooding. Like other southeastern states, South Carolina has warmed less than most of the nation. But in the coming decades, the region's changing climate is likely to reduce crop yields, harm livestock, increase the number of unpleasantly hot days, and increase the risk of heat stroke and other heat-related illnesses.[31]
See also
[edit]- Climate of the United States
- List of wettest tropical cyclones in South Carolina
- United States rainfall climatology
- List of earthquakes in South Carolina
Notes
[edit]- ^ Mean monthly maxima and minima (i.e. the expected highest and lowest temperature readings at any point during the year or given month) calculated based on data at said location from 1991 to 2020.
- ^ Official records for Greenville kept April 1884 to 10 December 1941 at downtown, 11 December 1941 to 14 October 1962 at Greenville Downtown Airport, and at Greenville–Spartanburg Int'l near Greer since 15 October 1962. For more information, see Threadex
References
[edit]- ^ "South Carolina Record Maximum Temperatures and Date". South Carolina State Climatology Office. South Carolina Department of Natural Resources. Retrieved 4 February 2010.
- ^ "Map of South Carolina Record Maximum Temperatures and Year". South Carolina State Climatology Office. South Carolina Department of Natural Resources. Retrieved 4 February 2010.
- ^ "South Carolina Record Minimum Temperatures and Date". South Carolina State Climatology Office. South Carolina Department of Natural Resources. Retrieved 4 February 2010.
- ^ "Map of South Carolina Record Minimum Temperatures and Year". South Carolina State Climatology Office. South Carolina Department of Natural Resources. Retrieved 4 February 2010.
- ^ South Carolina State Climatology Office. South Carolina Climate. Retrieved on 2008-03-18.
- ^ National Atlas.gov. Average annual precipitation for South Carolina. Archived 2008-08-16 at the Wayback Machine Retrieved on 2008-03-08.
- ^ "New Record Annual Rainfall Total Set in South Carolina". Retrieved 4 May 2019.
- ^ "South Carolina Maximum 24-Hour Precipitation". South Carolina State Climatology Office. South Carolina Department of Natural Resources. Retrieved 5 May 2019.
- ^ "South Carolina County 24-Hour Precipitation Records". South Carolina State Climatology Office. South Carolina Department of Natural Resources. Retrieved 5 May 2019.
- ^ a b "September 16, 1999". South Carolina State Climatology Office. South Carolina Department of Natural Resources. Retrieved 5 May 2019.
- ^ "South Carolina Maximum 24-Hour Snow". South Carolina State Climatology Office. South Carolina Department of Natural Resources. Retrieved 4 February 2010.
- ^ "South Carolina Historical Maximum Snowfall events". South Carolina State Climatology Office. South Carolina Department of Natural Resources. Retrieved 7 November 2011.
- ^ National Hurricane Center. Graphic showing seasonal activity by date. Retrieved on 2008-03-18.
- ^ Eric S. Blake, Edward N. Rappaport, and Chris Landsea. The Deadliest, Costliest, and Most Intense United States Tropical Cyclones From 1851 to 2006 (and other frequently requested hurricane facts).
- ^ National Hurricane Center. Atlantic Hurricane Track Database. Retrieved on 2008-03-18.
- ^ David M. Roth. Tropical Storm Jerry Color-Filled Rainfall Graphic. Retrieved on 2008-03-18.
- ^ National Climatic Data Center. Annual average number of tornadoes. Retrieved on 2006-10-24.
- ^ "NowData: NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved May 14, 2021.
- ^ "Station: Greer, SC". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991–2020). National Oceanic and Atmospheric Administration. Retrieved May 14, 2021.
- ^ "WMO Climate Normals for GREENVILLE/G-SPARTANBURG, SC 1961–1990". National Oceanic and Atmospheric Administration. Retrieved September 4, 2016.
- ^ "NowData – NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved May 14, 2021.
- ^ "Station: Myrtle Beach, SC". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991–2020). National Oceanic and Atmospheric Administration. Retrieved May 14, 2021.
- ^ a b Mean monthly maxima and minima (i.e. the expected highest and lowest temperature readings at any point during the year or given month) calculated based on data at said location from 1991 to 2020.
- ^ a b "NowData – NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved May 5, 2021.
- ^ "Summary of Monthly Normals 1991–2020". National Oceanic and Atmospheric Administration. Retrieved May 5, 2021.
- ^ "WMO Climate Normals for CHARLESTON/MUNICIPAL, SC 1961–1990". National Oceanic and Atmospheric Administration. Retrieved May 5, 2021.
- ^ "Historical UV Index Data - Charleston, SC". UV Index Today. Retrieved April 23, 2023.
- ^ "Summary of Monthly Normals 1991–2020". National Oceanic and Atmospheric Administration. Retrieved May 5, 2021.
- ^ "SC ACIS". Applied Climate Information System. Retrieved May 29, 2021.
- ^ Meyer, Robinson (June 29, 2017). "The American South Will Bear the Worst of Climate Change's Costs". The Atlantic.
- ^ "What Climate Change Means for South Carolina" (PDF). United States Environmental Protection Agency. August 2016.
- ^ Fretwell, Sammy (January 26, 2020). "As heat rises, SC watches quietly. Will state suffer from lack of climate action?". The State. Archived from the original on 2020-01-26. Retrieved 2020-02-11.
