Rohnert Park, CA
Climate overview — based on NOAA 1991-2020 normals from SANTA ROSA, CA US.
Year-round temperatures (°F)
Climate summary
Rohnert Park has an annual average temperature of 59°F with about 31.5 inches of precipitation per year. The warmest month is September (average high 83.9°F), and the coldest is December (average low 38.2°F). December is typically the wettest month (6.47 in) and July the driest (0.01 in).
Best time to visit Rohnert Park
Full guide →Climate change signal
All-time records →46 of 366 (12.6%) of Rohnert Park'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.
| 1900s | 12 | |
| 1910s | 26 | |
| 1920s | 32 | |
| 1930s | 55 | |
| 1940s | 12 | |
| 1950s | 29 | |
| 1960s | 36 | |
| 1970s | 44 | |
| 1980s | 23 | |
| 1990s | 10 | |
| 2000s | 31 | |
| 2010s | 24 | |
| 2020s | 32 |
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 | 59.7°F | 38.4°F | 49.1°F | 5.78 in | — | 14 |
| February | 63.6°F | 40.0°F | 51.8°F | 6.39 in | — | 13 |
| March | 66.9°F | 41.9°F | 54.4°F | 4.26 in | — | 12 |
| April | 70.6°F | 43.9°F | 57.3°F | 1.98 in | — | 8 |
| May | 74.5°F | 47.8°F | 61.1°F | 1.28 in | — | 5 |
| June | 80.2°F | 51.1°F | 65.6°F | 0.29 in | — | 1 |
| July | 81.6°F | 52.1°F | 66.9°F | 0.01 in | — | 0 |
| August | 83.0°F | 52.5°F | 67.7°F | 0.04 in | — | 0 |
| September | 83.9°F | 51.0°F | 67.5°F | 0.15 in | — | 1 |
| October | 78.9°F | 47.6°F | 63.3°F | 1.63 in | — | 4 |
| November | 67.1°F | 42.0°F | 54.6°F | 3.25 in | — | 9 |
| December | 59.0°F | 38.2°F | 48.6°F | 6.47 in | — | 13 |
Climate twins of Rohnert Park
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).