Seasonal Weather Patterns in Vacaville, CA
Temperature
Average Daily Temperature (°F)
| Vacaville, CA | U.S. Avg. | Difference | |
|---|---|---|---|
| January | 50 | 43 | +7 |
| July | 78 | 79 | -1 |
Average Monthly Number of Hot and Freezing Days
| Vacaville, CA | U.S. Avg. | Difference | |
|---|---|---|---|
| Summer: Hot Days | 15 | 11 | +4 |
| Winter: Freezing Days | 3 | 12 | -9 |
Read more in Temperature
Sunshine
Average Annual Number of Clear and Cloudy Days
| Vacaville, CA | U.S. Avg. | Difference | |
|---|---|---|---|
| Clear Days | 295 | 217 | +78 |
| Cloudy Days | 70 | 148 | -78 |
Average Daylight Hours per Day
| Vacaville, CA | U.S. Avg. | Difference | |
|---|---|---|---|
| January | 10 | 10 | No difference |
| July | 15 | 15 | No difference |
Read more in Sunshine
Precipitation
Average Annual Number of Rainy and Snow Days
| Vacaville, CA | U.S. Avg. | Difference | |
|---|---|---|---|
| Rainy Days | 60 | 67 | -7 |
| Snow Days | 0 | 7 | -7 |
Average Monthly Humidity (%) in Vacaville, CA
| Vacaville, CA | U.S. Avg. | Difference | |
|---|---|---|---|
| January | 80 | 68 | +12% |
| July | 44 | 61 | -17% |
Read more in Precipitation