Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Washington features a humid subtropical climate (Cfa).Temperatures typically range between 9 °C (48 °F) and 27 °C (82 °F) through the year, but rarely can drop to -8 °C (19 °F) or can rise to as high as 37 °C (98 °F).The average annual precipitation amounts to about 1256 mm (49.5 inches) and receives 127 rainy days on the 1 mm (0.04 inches) threshold annually.Washington enjoys an average of 3218 hours of sunshine throughout the year, and daylight varies from 9 hours 56 minutes to 14 hours 20 minutes per day.
The warmest months in Washington are June, July and August, with daily mean temperatures ranging from 26 to 27 °C (79 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 9 to 12 °C (48 - 53 °F) throughout the day. On average each year, Washington experiences 164 days above 25 °C (77.0 °F) and 19 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 25°C (78°F) | 28°C (83°F) | 30°C (86°F) | 32°C (89°F) | 37°C (98°F) | 37°C (98°F) | 37°C (98°F) | 36°C (97°F) | 36°C (98°F) | 37°C (98°F) | 28°C (82°F) | 26°C (79°F) |
Mean maximum | 23°C (74°F) | 26°C (80°F) | 28°C (83°F) | 30°C (86°F) | 34°C (94°F) | 34°C (94°F) | 36°C (97°F) | 36°C (96°F) | 35°C (95°F) | 33°C (92°F) | 26°C (80°F) | 23°C (73°F) |
Average high | 14°C (57°F) | 17°C (63°F) | 20°C (68°F) | 24°C (76°F) | 29°C (84°F) | 31°C (88°F) | 33°C (91°F) | 32°C (90°F) | 31°C (87°F) | 26°C (79°F) | 18°C (65°F) | 15°C (60°F) |
Daily mean | 9°C (48°F) | 12°C (53°F) | 14°C (58°F) | 18°C (65°F) | 23°C (73°F) | 26°C (79°F) | 27°C (82°F) | 27°C (81°F) | 25°C (77°F) | 20°C (68°F) | 12°C (54°F) | 10°C (50°F) |
Average low | 4°C (39°F) | 6°C (44°F) | 9°C (48°F) | 12°C (54°F) | 17°C (64°F) | 21°C (70°F) | 23°C (74°F) | 23°C (73°F) | 20°C (68°F) | 15°C (59°F) | 7°C (45°F) | 5°C (42°F) |
Mean minimum | -4°C (24°F) | -2°C (28°F) | -3°C (27°F) | 3°C (37°F) | 9°C (49°F) | 17°C (62°F) | 20°C (68°F) | 19°C (67°F) | 14°C (57°F) | 6°C (43°F) | -1°C (31°F) | -3°C (26°F) |
Minimum | -8°C (19°F) | -4°C (26°F) | -5°C (22°F) | 1°C (34°F) | 7°C (45°F) | 14°C (58°F) | 18°C (64°F) | 17°C (63°F) | 11°C (52°F) | 2°C (35°F) | -2°C (28°F) | -5°C (23°F) |
Compare temperature, precipitation, sunshine, UV index in Washington, Georgia, United States with other places around the world.
Washington usually has the most precipitation in February, August and December, with an average of 12 rainy days and 120 mm (4.7 inches) of precipitation per month.The driest months in Washington are March, June and November. On average, 89 mm (3.5 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 100 (3.9) | 117 (4.6) | 87 (3.4) | 107 (4.2) | 109 (4.3) | 97 (3.8) | 105 (4.1) | 125 (4.9) | 98 (3.9) | 112 (4.4) | 82 (3.2) | 117 (4.6) |
Average precipitation days (≥ 1 mm) | 9 | 12 | 10 | 8 | 9 | 14 | 15 | 16 | 8 | 9 | 7 | 10 |
The sunniest months in Washington are June, July and August, when the sun shines an average of 10 hours 43 minutes a day.Least sunny months in Washington: January, February and December receive an average of 6 hours 9 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 174 | 180 | 252 | 288 | 311 | 318 | 346 | 321 | 299 | 278 | 241 | 205 |
Mean daily daylight hours | 10h 11m | 10h 58m | 11h 59m | 13h 2m | 13h 55m | 14h 20m | 14h 6m | 13h 20m | 12h 20m | 11h 17m | 10h 23m | 9h 56m |
Washington experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure.January, November and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Washington UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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UV Index (month maximum) | 4 | 7 | 9 | 10 | 11 | 11 | 11 | 10 | 9 | 8 | 6 | 4 |