Template:San Juan, Puerto Rico weatherbox
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Record high °F (°C) | 92 (33) |
96 (36) |
96 (36) |
97 (36) |
96 (36) |
97 (36) |
95 (35) |
97 (36) |
97 (36) |
98 (37) |
96 (36) |
94 (34) |
98 (37) |
| Mean maximum °F (°C) | 87.5 (30.8) |
88.2 (31.2) |
90.0 (32.2) |
91.7 (33.2) |
92.3 (33.5) |
92.7 (33.7) |
92.0 (33.3) |
92.8 (33.8) |
93.7 (34.3) |
92.7 (33.7) |
90.3 (32.4) |
88.0 (31.1) |
94.3 (34.6) |
| Mean daily maximum °F (°C) | 83.2 (28.4) |
83.8 (28.8) |
84.7 (29.3) |
86.2 (30.1) |
87.4 (30.8) |
89.0 (31.7) |
88.7 (31.5) |
89.1 (31.7) |
89.2 (31.8) |
88.6 (31.4) |
86.1 (30.1) |
84.2 (29.0) |
86.7 (30.4) |
| Daily mean °F (°C) | 77.6 (25.3) |
77.8 (25.4) |
78.6 (25.9) |
80.1 (26.7) |
81.6 (27.6) |
83.1 (28.4) |
83.1 (28.4) |
83.5 (28.6) |
83.4 (28.6) |
82.7 (28.2) |
80.5 (26.9) |
78.8 (26.0) |
80.9 (27.2) |
| Mean daily minimum °F (°C) | 71.9 (22.2) |
71.8 (22.1) |
72.4 (22.4) |
74.0 (23.3) |
75.7 (24.3) |
77.2 (25.1) |
77.6 (25.3) |
77.8 (25.4) |
77.5 (25.3) |
76.7 (24.8) |
74.9 (23.8) |
73.3 (22.9) |
75.1 (23.9) |
| Mean minimum °F (°C) | 68.3 (20.2) |
68.7 (20.4) |
69.2 (20.7) |
70.7 (21.5) |
72.1 (22.3) |
74.0 (23.3) |
74.1 (23.4) |
74.2 (23.4) |
74.3 (23.5) |
73.7 (23.2) |
71.7 (22.1) |
70.0 (21.1) |
67.8 (19.9) |
| Record low °F (°C) | 61 (16) |
62 (17) |
60 (16) |
64 (18) |
66 (19) |
66 (19) |
69 (21) |
68 (20) |
69 (21) |
67 (19) |
65 (18) |
62 (17) |
60 (16) |
| Average precipitation inches (mm) | 4.07 (103) |
2.58 (66) |
2.18 (55) |
4.60 (117) |
5.54 (141) |
4.66 (118) |
6.02 (153) |
6.29 (160) |
6.50 (165) |
5.21 (132) |
7.37 (187) |
4.85 (123) |
59.87 (1,521) |
| Average precipitation days (≥ 0.01 in) | 18.4 | 15.3 | 13.1 | 14.3 | 16.5 | 15.1 | 19.0 | 19.8 | 18.3 | 17.7 | 20.6 | 20.2 | 208.3 |
| Average relative humidity (%) | 74.0 | 72.4 | 71.0 | 71.3 | 74.9 | 75.5 | 75.9 | 76.4 | 76.4 | 76.9 | 76.2 | 74.7 | 74.6 |
| Average dew point °F (°C) | 67.1 (19.5) |
66.6 (19.2) |
66.7 (19.3) |
68.2 (20.1) |
71.1 (21.7) |
72.9 (22.7) |
73.4 (23.0) |
73.6 (23.1) |
73.2 (22.9) |
72.7 (22.6) |
70.9 (21.6) |
68.5 (20.3) |
70.4 (21.3) |
| Mean monthly sunshine hours | 237.4 | 231.2 | 282.0 | 268.3 | 255.2 | 259.4 | 280.8 | 267.8 | 234.7 | 227.2 | 202.4 | 217.4 | 2,963.8 |
| Percent possible sunshine | 69 | 72 | 76 | 71 | 63 | 65 | 69 | 68 | 64 | 63 | 60 | 64 | 67 |
| Average ultraviolet index | 8 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 10 | 9 | 8 | 11 |
| Source 1: NOAA (relative humidity and sun 1961–1990)[2][3][4] | |||||||||||||
| Source 2: The Weather Channel[5], Weather Atlas (UV)[6] | |||||||||||||
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 San Juan were kept at downtown from November 1898 to December 1955 and at Luis Muñoz Marín International Airport since January 1956.[1]
References
- ^ ThreadEx
- ^ "NowData – NOAA Online Weather Data". National Oceanic and Atmospheric Administration. Retrieved June 17, 2021.
- ^ "Station: San Juan L M Marin AP, PR RQ". U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991–2020). National Oceanic and Atmospheric Administration. Archived from the original on 2023-06-24. Retrieved June 17, 2021.
- ^ "WMO Climate Normals for SAN JUAN/ISLA VERDE INT'L ARP,PR 1961–1990". National Oceanic and Atmospheric Administration. Archived from the original on 2023-06-24. Retrieved March 10, 2014.
- ^ "Monthly Averages for San Juan, PR – Temperature and Precipitation". The Weather Channel. Retrieved April 16, 2011.
- ^ "San Juan, Puerto Rico, USA - Monthly weather forecast and Climate data". Weather Atlas. Retrieved July 4, 2019.