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Fairfield, CA Climate
1991 to 2020 normals at Fairfield, 2.6 mi from the center of Fairfield, elevation 40 ft.
Average weather by month
Select a month for daily normals and last year's weather
| Month | Range | High | Low | Precip. | Snow |
|---|---|---|---|---|---|
| January | 57° | 40° | 4.68 in | 0.0 in | |
| February | 62° | 43° | 4.97 in | 0.0 in | |
| March | 66° | 45° | 3.31 in | 0.0 in | |
| April | 71° | 48° | 1.47 in | 0.0 in | |
| May | 78° | 52° | 0.74 in | 0.0 in | |
| June | 85° | 56° | 0.19 in | 0.0 in | |
| July | 90° | 58° | 0.00 in | 0.0 in | |
| August | 89° | 58° | 0.03 in | 0.0 in | |
| September | 87° | 57° | 0.08 in | 0.0 in | |
| October | 78° | 52° | 1.11 in | 0.0 in | |
| November | 66° | 45° | 2.55 in | 0.0 in | |
| December | 57° | 40° | 5.40 in | 0.0 in | |
| Year | 74° | 24.53 in | 0.0 in |
Frequently asked questions
- What is the hottest month in Fairfield, CA?
- July is the warmest month, with a normal high of 90°F at Fairfield.
- What is the coldest month in Fairfield, CA?
- December is the coldest month, with a normal low of 40°F.
- What is the wettest month in Fairfield, CA?
- December has the most precipitation on average, about 5.40 inches.