Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Oregon features a humid continental climate (Dfa).Temperatures typically range between -2 °C (29 °F) and 26 °C (79 °F) through the year, but rarely can drop to -32 °C (-24 °F) or can rise to as high as 39 °C (102 °F).The average annual precipitation amounts to about 1054 mm (41.5 inches) and receives 97 rainy days on the 1 mm (0.04 inches) threshold annually.Oregon enjoys an average of 3090 hours of sunshine throughout the year, and daylight varies from 9 hours 22 minutes to 14 hours 57 minutes per day.
The warmest months in Oregon are June, July and August, with daily mean temperatures ranging from 24 to 26 °C (76 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 2 °C (29 - 36 °F) throughout the day. On average each year, Oregon experiences 115 days above 25 °C (77.0 °F) and 101 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 17°C (62°F) | 25°C (77°F) | 30°C (86°F) | 31°C (88°F) | 37°C (98°F) | 39°C (102°F) | 38°C (100°F) | 37°C (99°F) | 35°C (96°F) | 33°C (92°F) | 26°C (80°F) | 23°C (74°F) |
Mean maximum | 16°C (61°F) | 20°C (69°F) | 25°C (77°F) | 29°C (84°F) | 33°C (91°F) | 34°C (94°F) | 36°C (97°F) | 34°C (94°F) | 34°C (93°F) | 31°C (88°F) | 22°C (72°F) | 18°C (65°F) |
Average high | 3°C (38°F) | 5°C (40°F) | 13°C (55°F) | 18°C (64°F) | 24°C (75°F) | 30°C (87°F) | 31°C (88°F) | 29°C (85°F) | 27°C (81°F) | 19°C (66°F) | 12°C (53°F) | 8°C (46°F) |
Daily mean | -2°C (29°F) | -1°C (30°F) | 7°C (45°F) | 12°C (53°F) | 18°C (65°F) | 25°C (77°F) | 26°C (79°F) | 24°C (76°F) | 22°C (71°F) | 13°C (56°F) | 6°C (43°F) | 2°C (36°F) |
Average low | -7°C (20°F) | -7°C (20°F) | 2°C (35°F) | 6°C (42°F) | 13°C (56°F) | 19°C (67°F) | 21°C (70°F) | 19°C (67°F) | 16°C (62°F) | 8°C (46°F) | 0°C (33°F) | -3°C (27°F) |
Mean minimum | -20°C (-4°F) | -19°C (-2°F) | -10°C (14°F) | -5°C (24°F) | 5°C (42°F) | 14°C (57°F) | 16°C (61°F) | 13°C (55°F) | 8°C (47°F) | -2°C (29°F) | -10°C (14°F) | -13°C (9°F) |
Minimum | -27°C (-16°F) | -32°C (-24°F) | -21°C (-5°F) | -9°C (17°F) | 3°C (37°F) | 10°C (50°F) | 14°C (58°F) | 11°C (52°F) | 6°C (43°F) | -4°C (26°F) | -15°C (5°F) | -21°C (-6°F) |
Compare temperature, precipitation, sunshine, UV index in Oregon, Missouri, United States with other places around the world.
Oregon usually has the most precipitation in May, June and October, with an average of 10 rainy days and 141 mm (5.6 inches) of precipitation per month.The driest months in Oregon are February, November and December. On average, 35 mm (1.4 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 41 (1.6) | 31 (1.2) | 92 (3.6) | 82 (3.2) | 168 (6.6) | 132 (5.2) | 119 (4.7) | 110 (4.3) | 83 (3.2) | 123 (4.8) | 40 (1.6) | 32 (1.3) |
Average precipitation days (≥ 1 mm) | 6 | 6 | 10 | 9 | 13 | 9 | 8 | 9 | 9 | 9 | 5 | 4 |
The sunniest months in Oregon are June, July and August, when the sun shines an average of 11 hours 14 minutes a day.Least sunny months in Oregon: January, February and November receive an average of 6 hours 16 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 152 | 203 | 216 | 262 | 271 | 341 | 367 | 325 | 282 | 238 | 209 | 219 |
Mean daily daylight hours | 9h 41m | 10h 41m | 11h 58m | 13h 17m | 14h 24m | 14h 57m | 14h 38m | 13h 39m | 12h 23m | 11h 5m | 9h 56m | 9h 22m |
Oregon experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Oregon UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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UV Index (month maximum) | 3 | 5 | 6 | 9 | 10 | 11 | 11 | 9 | 9 | 6 | 4 | 3 |