Philomath, OR
Climate overview — based on NOAA 1991-2020 normals from CORVALLIS WATER BUREAU, OR US.
Year-round temperatures (°F)
Climate summary
Philomath has an annual average temperature of 49.8°F with about 68.8 inches of precipitation per year and 5.3 inches of snow. The warmest month is August (average high 83.0°F), and the coldest is January (average low 27.8°F). December is typically the wettest month (13.42 in) and July the driest (0.32 in). Snow typically falls from November through March.
Best time to visit Philomath
Full guide →Climate change signal
All-time records →129 of 366 (35.2%) of Philomath's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1930s | 0 | |
| 1940s | 0 | |
| 1950s | 0 | |
| 1960s | 39 | |
| 1970s | 58 | |
| 1980s | 22 | |
| 1990s | 32 | |
| 2000s | 66 | |
| 2010s | 79 | |
| 2020s | 70 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 47.1°F | 27.8°F | 37.5°F | 11.25 in | 2.0 in | 21 |
| February | 51.1°F | 28.3°F | 39.7°F | 8.38 in | 1.7 in | 18 |
| March | 56.2°F | 30.5°F | 43.4°F | 8.11 in | 0.5 in | 21 |
| April | 61.4°F | 33.0°F | 47.2°F | 5.43 in | — | 19 |
| May | 68.9°F | 38.6°F | 53.7°F | 2.80 in | — | 14 |
| June | 73.9°F | 42.6°F | 58.3°F | 1.49 in | — | 9 |
| July | 82.4°F | 45.7°F | 64.0°F | 0.32 in | — | 3 |
| August | 83.0°F | 45.7°F | 64.3°F | 0.42 in | — | 3 |
| September | 77.4°F | 42.3°F | 59.9°F | 1.75 in | — | 7 |
| October | 65.0°F | 36.3°F | 50.7°F | 4.99 in | — | 15 |
| November | 52.7°F | 30.7°F | 41.7°F | 10.39 in | 0.2 in | 21 |
| December | 46.1°F | 28.3°F | 37.2°F | 13.42 in | 0.9 in | 21 |
Climate twins of Philomath
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).