Vacaville, CA
Climate overview — based on NOAA 1991-2020 normals from VACAVILLE NUT TREE AP, CA US.
Year-round temperatures (°F)
Climate summary
Vacaville has an annual average temperature of 62.1°F with about 24.8 inches of precipitation per year. The warmest month is July (average high 95.0°F), and the coldest is December (average low 37.1°F). January is typically the wettest month (5.26 in) and July the driest (0.01 in).
Best time to visit Vacaville
Full guide →Climate change signal
All-time records →192 of 366 (52.5%) of Vacaville'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.
| 1990s | 12 | |
| 2000s | 116 | |
| 2010s | 125 | |
| 2020s | 113 |
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 | 57.6°F | 37.7°F | 47.7°F | 5.26 in | — | 11 |
| February | 62.6°F | 40.3°F | 51.5°F | 5.06 in | — | 9 |
| March | 67.7°F | 43.0°F | 55.3°F | 3.69 in | — | 9 |
| April | 72.8°F | 45.8°F | 59.3°F | 1.29 in | — | 5 |
| May | 81.0°F | 51.1°F | 66.1°F | 0.81 in | — | 3 |
| June | 89.5°F | 56.4°F | 73.0°F | 0.17 in | — | 1 |
| July | 95.0°F | 59.0°F | 77.0°F | 0.01 in | — | 0 |
| August | 93.8°F | 57.9°F | 75.9°F | 0.02 in | — | 0 |
| September | 90.6°F | 55.6°F | 73.1°F | 0.06 in | — | 1 |
| October | 79.9°F | 49.1°F | 64.5°F | 1.08 in | — | 3 |
| November | 66.5°F | 41.5°F | 54.0°F | 2.31 in | — | 8 |
| December | 57.8°F | 37.1°F | 47.5°F | 5.08 in | — | 10 |
Climate twins of Vacaville
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).