Monthly weather forecast and climate
Vacaville, CA US

The warmest month (with the highest average high temperature) is July (96°F).
Months with the lowest average high temperature are January and December (56°F).

The month with the highest average low temperature is July (60°F).
Coldest months (with the lowest average low temperature) are January and December (39°F).

The wettest month (with the highest rainfall) is February (5.4").
The driest month (with the lowest rainfall) is July (0").