Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Umatilla features a humid subtropical climate (Cfa).Temperatures typically range between 15 °C (59 °F) and 28 °C (82 °F) through the year, but rarely can drop to -4 °C (26 °F) or can rise to as high as 36 °C (97 °F).The average annual precipitation amounts to about 1281 mm (50.4 inches) and receives 150 rainy days on the 1 mm (0.04 inches) threshold annually.Umatilla enjoys an average of 3403 hours of sunshine throughout the year, and daylight varies from 10 hours 18 minutes to 13 hours 56 minutes per day.
The warmest months in Umatilla are July, August and September, with daily mean temperatures ranging from 27 to 28 °C (81 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 15 to 18 °C (59 - 65 °F) throughout the day. On average each year, Umatilla experiences 239 days above 25 °C (77.0 °F) and 1 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 29°C (85°F) | 30°C (87°F) | 34°C (93°F) | 34°C (94°F) | 36°C (97°F) | 36°C (97°F) | 36°C (97°F) | 35°C (96°F) | 36°C (97°F) | 33°C (92°F) | 31°C (89°F) | 29°C (84°F) |
Mean maximum | 28°C (82°F) | 29°C (85°F) | 31°C (87°F) | 32°C (90°F) | 35°C (94°F) | 34°C (94°F) | 35°C (95°F) | 35°C (95°F) | 34°C (94°F) | 33°C (91°F) | 29°C (85°F) | 28°C (82°F) |
Average high | 21°C (69°F) | 24°C (76°F) | 25°C (78°F) | 28°C (82°F) | 30°C (87°F) | 31°C (89°F) | 32°C (90°F) | 32°C (90°F) | 32°C (89°F) | 29°C (85°F) | 25°C (76°F) | 22°C (72°F) |
Daily mean | 15°C (59°F) | 18°C (65°F) | 19°C (67°F) | 22°C (72°F) | 25°C (77°F) | 27°C (81°F) | 27°C (82°F) | 28°C (82°F) | 27°C (81°F) | 25°C (77°F) | 19°C (67°F) | 17°C (62°F) |
Average low | 10°C (50°F) | 13°C (56°F) | 14°C (57°F) | 17°C (63°F) | 20°C (68°F) | 23°C (74°F) | 24°C (76°F) | 25°C (76°F) | 24°C (75°F) | 21°C (70°F) | 15°C (59°F) | 12°C (53°F) |
Mean minimum | -0°C (32°F) | 3°C (38°F) | 4°C (39°F) | 9°C (49°F) | 14°C (58°F) | 21°C (70°F) | 23°C (73°F) | 23°C (74°F) | 20°C (69°F) | 13°C (56°F) | 7°C (44°F) | 2°C (36°F) |
Minimum | -4°C (26°F) | 2°C (35°F) | 2°C (36°F) | 8°C (46°F) | 11°C (52°F) | 20°C (68°F) | 22°C (72°F) | 22°C (73°F) | 18°C (65°F) | 7°C (44°F) | 3°C (37°F) | -0°C (31°F) |
Compare temperature, precipitation, sunshine, UV index in Umatilla, Florida, United States with other places around the world.
Umatilla usually has the most precipitation in June, July and August, with an average of 24 rainy days and 205 mm (8.1 inches) of precipitation per month.The driest months in Umatilla are January, February and March. On average, 43 mm (1.7 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 47 (1.9) | 57 (2.2) | 25 (1.0) | 80 (3.2) | 97 (3.8) | 190 (7.5) | 221 (8.7) | 203 (8.0) | 153 (6.0) | 80 (3.1) | 58 (2.3) | 71 (2.8) |
Average precipitation days (≥ 1 mm) | 4 | 7 | 4 | 8 | 9 | 22 | 26 | 26 | 18 | 12 | 6 | 8 |
The sunniest months in Umatilla are May, July and August, when the sun shines an average of 10 hours 18 minutes a day.Least sunny months in Umatilla: January, February and December receive an average of 7 hours 39 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 208 | 238 | 304 | 305 | 327 | 294 | 319 | 311 | 300 | 289 | 253 | 248 |
Mean daily daylight hours | 10h 31m | 11h 10m | 12h 0m | 12h 52m | 13h 35m | 13h 56m | 13h 45m | 13h 7m | 12h 17m | 11h 25m | 10h 41m | 10h 18m |
Umatilla experiences the highest level of ultraviolet (UV) radiation in April, June and September, when the maximum UV index can reach values of 11 - 12, 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 7. For more detailed information, check out our hourly Umatilla UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 5 | 8 | 9 | 11 | 11 | 12 | 11 | 11 | 11 | 9 | 7 | 5 |