Hot-summer Mediterranean climate
Climate Fairfield - California
Annual high73ºF
Annual low49ºF
Precipitation24.81 inch
| Month | HighºF | LowºF | Precipinch |
|---|---|---|---|
| Jan | 55 | 39 | 4.78 |
| Feb | 61 | 42 | 4.88 |
| Mar | 66 | 45 | 3.41 |
| Apr | 71 | 47 | 1.34 |
| May | 78 | 52 | 0.76 |
| Jun | 85 | 56 | 0.18 |
| Jul | 89 | 56 | 0.00 |
| Aug | 89 | 57 | 0.03 |
| Sep | 86 | 56 | 0.21 |
| Oct | 78 | 51 | 1.22 |
| Nov | 65 | 44 | 2.94 |
| Dec | 55 | 39 | 5.06 |
- JanHigh 55ºFLow 39ºFPrecip 4.78 inch
- FebHigh 61ºFLow 42ºFPrecip 4.88 inch
- MarHigh 66ºFLow 45ºFPrecip 3.41 inch
- AprHigh 71ºFLow 47ºFPrecip 1.34 inch
- MayHigh 78ºFLow 52ºFPrecip 0.76 inch
- JunHigh 85ºFLow 56ºFPrecip 0.18 inch
- JulHigh 89ºFLow 56ºFPrecip 0.00 inch
- AugHigh 89ºFLow 57ºFPrecip 0.03 inch
- SepHigh 86ºFLow 56ºFPrecip 0.21 inch
- OctHigh 78ºFLow 51ºFPrecip 1.22 inch
- NovHigh 65ºFLow 44ºFPrecip 2.94 inch
- DecHigh 55ºFLow 39ºFPrecip 5.06 inch
Climate summary
What is the average weather in Fairfield, California?
Fairfield experiences a hot-summer climate with a strong seasonal contrast. Summers are hot and notably dry, while winters are cool and bring moderate precipitation. The area sees frequent rain or drizzle during the cooler season, contributing to wetter winters overall.
Fairfield weather averages
Annual high73ºF
Annual low49ºF
Precipitation24.81 inch
Daily normals Fairfield - California - January
| Day | HighºF | LowºF | Prec/ | Prec/ |
|---|---|---|---|---|
| Jan 1 | 55.4 | 39.6 | 0.15 | 0.15 |
| Jan 2 | 55.4 | 39.6 | 0.30 | 0.30 |
| Jan 3 | 55.4 | 39.6 | 0.45 | 0.45 |
| Jan 4 | 55.5 | 39.7 | 0.59 | 0.59 |
| Jan 5 | 55.5 | 39.7 | 0.75 | 0.75 |
| Jan 6 | 55.6 | 39.7 | 0.89 | 0.89 |
| Jan 7 | 55.6 | 39.8 | 1.04 | 1.04 |
| Jan 8 | 55.7 | 39.8 | 1.20 | 1.20 |
| Jan 9 | 55.7 | 39.9 | 1.35 | 1.35 |
| Jan 10 | 55.8 | 39.9 | 1.51 | 1.51 |
| Jan 11 | 55.9 | 40.0 | 1.68 | 1.68 |
| Jan 12 | 56.0 | 40.1 | 1.84 | 1.84 |
| Jan 13 | 56.1 | 40.1 | 2.00 | 2.00 |
| Jan 14 | 56.2 | 40.2 | 2.16 | 2.16 |
| Jan 15 | 56.3 | 40.3 | 2.32 | 2.32 |
| Jan 16 | 56.4 | 40.3 | 2.46 | 2.46 |
| Jan 17 | 56.5 | 40.4 | 2.61 | 2.61 |
| Jan 18 | 56.6 | 40.5 | 2.75 | 2.75 |
| Jan 19 | 56.7 | 40.5 | 2.89 | 2.89 |
| Jan 20 | 56.9 | 40.6 | 3.04 | 3.04 |
| Jan 21 | 57.0 | 40.7 | 3.18 | 3.18 |
| Jan 22 | 57.1 | 40.8 | 3.32 | 3.32 |
| Jan 23 | 57.3 | 40.8 | 3.47 | 3.47 |
| Jan 24 | 57.4 | 40.9 | 3.61 | 3.61 |
| Jan 25 | 57.6 | 41.0 | 3.76 | 3.76 |
| Jan 26 | 57.8 | 41.1 | 3.92 | 3.92 |
| Jan 27 | 57.9 | 41.2 | 4.07 | 4.07 |
| Jan 28 | 58.1 | 41.3 | 4.22 | 4.22 |
| Jan 29 | 58.3 | 41.3 | 4.37 | 4.37 |
| Jan 30 | 58.5 | 41.4 | 4.52 | 4.52 |
| Jan 31 | 58.7 | 41.5 | 4.68 | 4.68 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Fairfield - September 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Sep 1 | 77.0 | 59.0 | 0.00 |
| Sep 2 | 77.0 | 59.0 | 0.00 |
| Sep 3 | 77.0 | 59.0 | 0.00 |
| Sep 4 | 79.0 | 55.9 | 0.00 |
| Sep 5 | 82.9 | 54.0 | 0.00 |
| Sep 6 | 81.0 | 55.0 | 0.00 |
| Sep 7 | 89.1 | 54.0 | 0.00 |
| Sep 8 | 95.0 | 59.0 | 0.00 |
| Sep 9 | 102.9 | 66.0 | 0.00 |
| Sep 10 | 102.0 | 73.0 | 0.00 |
| Sep 11 | 91.9 | 60.1 | 0.00 |
| Sep 12 | 82.9 | 61.0 | 0.00 |
| Sep 13 | 81.0 | 55.9 | 0.00 |
| Sep 14 | 88.0 | 55.9 | 0.00 |
| Sep 15 | 84.9 | 57.0 | 0.00 |
| Sep 16 | 77.0 | 57.9 | 0.00 |
| Sep 17 | 75.0 | 57.9 | 0.00 |
| Sep 18 | 84.9 | 55.9 | 0.00 |
| Sep 19 | 88.0 | 57.0 | 0.00 |
| Sep 20 | 80.1 | 57.9 | 0.00 |
| Sep 21 | 73.0 | 55.9 | 0.00 |
| Sep 22 | 79.0 | 55.0 | 0.00 |
| Sep 23 | 90.0 | 53.1 | 0.00 |
| Sep 24 | 91.0 | 60.1 | 0.00 |
| Sep 25 | 81.0 | 61.0 | 0.00 |
| Sep 26 | 80.1 | 55.0 | 0.00 |
| Sep 27 | 75.9 | 57.9 | 0.00 |
| Sep 28 | 82.0 | 52.0 | 0.00 |
| Sep 29 | 95.0 | 55.0 | 0.00 |
| Sep 30 | 93.0 | 60.1 | 0.00 |
The data for September 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature102.9ºF · Sep 9
- Lowest max temperature73.0ºF · Sep 21
- Highest min temperature73.0ºF · Sep 10
- Lowest min temperature52.0ºF · Sep 28
Geo Fairfield - California
Location
- Country
- United States
- State
- California
- County
- Solano
- City
- Fairfield
- Zip Code
- 94535
- Elevation
- 52 ft
- Longitude
- -121.93
- Latitude
- 38.26
- ICAO
- –
- IATA
- –