Keizer, OR
Climate overview — based on NOAA 1991-2020 normals from SALEM MCNARY FLD, OR US.
Year-round temperatures (°F)
Climate summary
Keizer has an annual average temperature of 54.1°F with about 40.1 inches of precipitation per year. The warmest month is August (average high 83.6°F), and the coldest is December (average low 35.1°F). December is typically the wettest month (6.97 in) and July the driest (0.25 in).
Best time to visit Keizer
Full guide →Climate change signal
All-time records →56 of 366 (15.3%) of Keizer'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.
| 1890s | 16 | |
| 1900s | 19 | |
| 1910s | 17 | |
| 1920s | 30 | |
| 1930s | 31 | |
| 1940s | 27 | |
| 1950s | 26 | |
| 1960s | 30 | |
| 1970s | 23 | |
| 1980s | 27 | |
| 1990s | 29 | |
| 2000s | 29 | |
| 2010s | 31 | |
| 2020s | 31 |
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 | 48.4°F | 35.8°F | 42.1°F | 6.08 in | — | 18 |
| February | 52.1°F | 35.9°F | 44.0°F | 4.54 in | — | 16 |
| March | 56.8°F | 38.3°F | 47.5°F | 4.35 in | — | 18 |
| April | 61.6°F | 41.0°F | 51.3°F | 3.12 in | — | 16 |
| May | 69.0°F | 46.3°F | 57.7°F | 2.25 in | — | 12 |
| June | 74.6°F | 50.8°F | 62.7°F | 1.25 in | — | 8 |
| July | 83.5°F | 55.1°F | 69.3°F | 0.25 in | — | 2 |
| August | 83.6°F | 54.8°F | 69.2°F | 0.39 in | — | 3 |
| September | 77.5°F | 50.6°F | 64.0°F | 1.46 in | — | 6 |
| October | 64.8°F | 43.9°F | 54.3°F | 3.47 in | — | 13 |
| November | 53.6°F | 39.0°F | 46.3°F | 5.95 in | — | 18 |
| December | 47.4°F | 35.1°F | 41.3°F | 6.97 in | — | 19 |
Climate twins of Keizer
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).