Hot-summer humid continental climate
Climate Fairfield - Illinois
Annual high66ºF
Annual low44ºF
Precipitation44.26 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 39 | 22 | 3.03 | 3 |
| Feb | 44 | 25 | 2.78 | 4 |
| Mar | 55 | 34 | 4.39 | 2 |
| Apr | 67 | 44 | 4.35 | 0 |
| May | 76 | 53 | 4.97 | 0 |
| Jun | 85 | 62 | 3.81 | 0 |
| Jul | 88 | 65 | 3.62 | 0 |
| Aug | 87 | 63 | 3.15 | 0 |
| Sep | 80 | 55 | 2.62 | 0 |
| Oct | 69 | 44 | 3.88 | 0 |
| Nov | 55 | 35 | 4.17 | 0 |
| Dec | 42 | 25 | 3.49 | 4 |
- JanHigh 39ºFLow 22ºFPrecip 3.03 inch
- FebHigh 44ºFLow 25ºFPrecip 2.78 inch
- MarHigh 55ºFLow 34ºFPrecip 4.39 inch
- AprHigh 67ºFLow 44ºFPrecip 4.35 inch
- MayHigh 76ºFLow 53ºFPrecip 4.97 inch
- JunHigh 85ºFLow 62ºFPrecip 3.81 inch
- JulHigh 88ºFLow 65ºFPrecip 3.62 inch
- AugHigh 87ºFLow 63ºFPrecip 3.15 inch
- SepHigh 80ºFLow 55ºFPrecip 2.62 inch
- OctHigh 69ºFLow 44ºFPrecip 3.88 inch
- NovHigh 55ºFLow 35ºFPrecip 4.17 inch
- DecHigh 42ºFLow 25ºFPrecip 3.49 inch
Climate summary
What is the average weather in Fairfield, Illinois?
Fairfield experiences a humid continental climate, marked by a very large seasonal temperature contrast. Summers are hot, while winters are cold and bring regular snowfall. Precipitation is fairly wet overall and spread relatively evenly throughout the year, with winter moisture often arriving as snow.
Fairfield weather averages
Annual high66ºF
Annual low44ºF
Precipitation44.26 inch
Snowfall13 inch
Daily normals Fairfield - Illinois - January
| Day | HighºF | LowºF | Prec/ | Prec/ |
|---|---|---|---|---|
| Jan 1 | 41.4 | 25.9 | 0.12 | 0.12 |
| Jan 2 | 41.3 | 25.7 | 0.24 | 0.24 |
| Jan 3 | 41.1 | 25.6 | 0.35 | 0.35 |
| Jan 4 | 41.0 | 25.4 | 0.47 | 0.47 |
| Jan 5 | 40.9 | 25.3 | 0.59 | 0.59 |
| Jan 6 | 40.8 | 25.1 | 0.70 | 0.70 |
| Jan 7 | 40.8 | 25.0 | 0.82 | 0.82 |
| Jan 8 | 40.7 | 24.8 | 0.93 | 0.93 |
| Jan 9 | 40.6 | 24.7 | 1.04 | 1.04 |
| Jan 10 | 40.6 | 24.6 | 1.16 | 1.16 |
| Jan 11 | 40.6 | 24.5 | 1.27 | 1.27 |
| Jan 12 | 40.5 | 24.4 | 1.38 | 1.38 |
| Jan 13 | 40.5 | 24.3 | 1.50 | 1.50 |
| Jan 14 | 40.6 | 24.2 | 1.61 | 1.61 |
| Jan 15 | 40.6 | 24.1 | 1.72 | 1.72 |
| Jan 16 | 40.6 | 24.1 | 1.83 | 1.83 |
| Jan 17 | 40.7 | 24.0 | 1.95 | 1.95 |
| Jan 18 | 40.7 | 24.0 | 2.06 | 2.06 |
| Jan 19 | 40.8 | 23.9 | 2.17 | 2.17 |
| Jan 20 | 40.9 | 23.9 | 2.27 | 2.27 |
| Jan 21 | 41.0 | 23.9 | 2.36 | 2.36 |
| Jan 22 | 41.1 | 23.9 | 2.47 | 2.47 |
| Jan 23 | 41.2 | 24.0 | 2.57 | 2.57 |
| Jan 24 | 41.3 | 24.0 | 2.68 | 2.68 |
| Jan 25 | 41.5 | 24.1 | 2.78 | 2.78 |
| Jan 26 | 41.6 | 24.1 | 2.87 | 2.87 |
| Jan 27 | 41.8 | 24.2 | 2.97 | 2.97 |
| Jan 28 | 42.0 | 24.3 | 3.06 | 3.06 |
| Jan 29 | 42.2 | 24.4 | 3.15 | 3.15 |
| Jan 30 | 42.3 | 24.5 | 3.24 | 3.24 |
| Jan 31 | 42.6 | 24.7 | 3.33 | 3.33 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Fairfield - November 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Nov 1 | 71.1 | 57.0 | – |
| Nov 2 | – | – | – |
| Nov 3 | – | – | – |
| Nov 4 | – | – | – |
| Nov 5 | – | – | – |
| Nov 6 | – | – | – |
| Nov 7 | – | – | – |
| Nov 8 | – | – | – |
| Nov 9 | – | – | – |
| Nov 10 | – | – | – |
| Nov 11 | – | – | – |
| Nov 12 | – | – | – |
| Nov 13 | – | – | – |
| Nov 14 | – | – | – |
| Nov 15 | – | – | – |
| Nov 16 | – | – | – |
| Nov 17 | – | – | – |
| Nov 18 | – | – | – |
| Nov 19 | – | – | – |
| Nov 20 | – | – | – |
| Nov 21 | – | – | – |
| Nov 22 | – | – | – |
| Nov 23 | – | – | – |
| Nov 24 | – | – | – |
| Nov 25 | – | – | – |
| Nov 26 | – | – | – |
| Nov 27 | – | – | – |
| Nov 28 | – | – | – |
| Nov 29 | – | – | – |
| Nov 30 | – | – | – |
The data for November 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 temperature71.1ºF · Nov 1
- Lowest max temperature71.1ºF · Nov 1
- Highest min temperature57.0ºF · Nov 1
- Lowest min temperature57.0ºF · Nov 1
Geo Fairfield - Illinois
Location
- Country
- United States
- State
- Illinois
- County
- Wayne
- City
- Fairfield
- Zip Code
- 62837
- Elevation
- 427 ft
- Longitude
- -88.41
- Latitude
- 38.38
- ICAO
- –
- IATA
- –