Dry-summer warm continental climate
Climate Fairfield - Idaho
Annual high56ºF
Annual low27ºF
Precipitation13.25 inch
| Month | HighºF | LowºF | Precipinch |
|---|---|---|---|
| Jan | 28 | 6 | 1.49 |
| Feb | 33 | 9 | 1.39 |
| Mar | 42 | 19 | 1.33 |
| Apr | 55 | 28 | 1.17 |
| May | 65 | 36 | 1.28 |
| Jun | 74 | 41 | 0.79 |
| Jul | 85 | 47 | 0.35 |
| Aug | 84 | 45 | 0.34 |
| Sep | 74 | 37 | 0.56 |
| Oct | 61 | 28 | 0.82 |
| Nov | 42 | 18 | 1.69 |
| Dec | 28 | 7 | 2.04 |
- JanHigh 28ºFLow 6ºFPrecip 1.49 inch
- FebHigh 33ºFLow 9ºFPrecip 1.39 inch
- MarHigh 42ºFLow 19ºFPrecip 1.33 inch
- AprHigh 55ºFLow 28ºFPrecip 1.17 inch
- MayHigh 65ºFLow 36ºFPrecip 1.28 inch
- JunHigh 74ºFLow 41ºFPrecip 0.79 inch
- JulHigh 85ºFLow 47ºFPrecip 0.35 inch
- AugHigh 84ºFLow 45ºFPrecip 0.34 inch
- SepHigh 74ºFLow 37ºFPrecip 0.56 inch
- OctHigh 61ºFLow 28ºFPrecip 0.82 inch
- NovHigh 42ºFLow 18ºFPrecip 1.69 inch
- DecHigh 28ºFLow 7ºFPrecip 2.04 inch
Climate summary
What is the average weather in Fairfield, Idaho?
Fairfield experiences a humid continental climate, marked by very large seasonal temperature contrasts due to its inland and high elevation. Summers are warm but dry, while winters are very cold. Although summers are dry, precipitation is spread relatively evenly through the year, with wetter winters contributing to the overall dry annual total.
Fairfield weather averages
Annual high56ºF
Annual low27ºF
Precipitation13.25 inch
Daily normals Fairfield - Idaho - January
| Day | HighºF | LowºF | Prec/ | Prec/ |
|---|---|---|---|---|
| Jan 1 | 26.1 | 8.2 | 0.08 | 0.08 |
| Jan 2 | 26.1 | 8.3 | 0.17 | 0.17 |
| Jan 3 | 26.2 | 8.3 | 0.25 | 0.25 |
| Jan 4 | 26.2 | 8.4 | 0.34 | 0.34 |
| Jan 5 | 26.3 | 8.4 | 0.41 | 0.41 |
| Jan 6 | 26.4 | 8.5 | 0.49 | 0.49 |
| Jan 7 | 26.5 | 8.6 | 0.57 | 0.57 |
| Jan 8 | 26.5 | 8.7 | 0.65 | 0.65 |
| Jan 9 | 26.6 | 8.7 | 0.72 | 0.72 |
| Jan 10 | 26.7 | 8.8 | 0.79 | 0.79 |
| Jan 11 | 26.8 | 8.9 | 0.86 | 0.86 |
| Jan 12 | 26.9 | 9.0 | 0.92 | 0.92 |
| Jan 13 | 27.0 | 9.1 | 0.99 | 0.99 |
| Jan 14 | 27.1 | 9.1 | 1.05 | 1.05 |
| Jan 15 | 27.2 | 9.2 | 1.12 | 1.12 |
| Jan 16 | 27.3 | 9.3 | 1.19 | 1.19 |
| Jan 17 | 27.4 | 9.3 | 1.25 | 1.25 |
| Jan 18 | 27.5 | 9.4 | 1.32 | 1.32 |
| Jan 19 | 27.5 | 9.5 | 1.39 | 1.39 |
| Jan 20 | 27.6 | 9.5 | 1.45 | 1.45 |
| Jan 21 | 27.7 | 9.6 | 1.52 | 1.52 |
| Jan 22 | 27.8 | 9.6 | 1.58 | 1.58 |
| Jan 23 | 27.9 | 9.7 | 1.64 | 1.64 |
| Jan 24 | 28.0 | 9.7 | 1.70 | 1.70 |
| Jan 25 | 28.1 | 9.8 | 1.76 | 1.76 |
| Jan 26 | 28.2 | 9.8 | 1.82 | 1.82 |
| Jan 27 | 28.3 | 9.9 | 1.87 | 1.87 |
| Jan 28 | 28.4 | 9.9 | 1.93 | 1.93 |
| Jan 29 | 28.5 | 9.9 | 1.99 | 1.99 |
| Jan 30 | 28.6 | 10.0 | 2.05 | 2.05 |
| Jan 31 | 28.7 | 10.0 | 2.11 | 2.11 |
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 | 80.1 | 46.0 | 0.00 |
| Sep 2 | 69.1 | 48.0 | 0.00 |
| Sep 3 | 69.1 | 46.9 | 0.00 |
| Sep 4 | 66.0 | 43.0 | 0.00 |
| Sep 5 | 77.0 | 43.0 | 0.00 |
| Sep 6 | 75.9 | 39.0 | 0.00 |
| Sep 7 | 64.9 | 28.0 | 0.04 |
| Sep 8 | 71.1 | 30.9 | 0.00 |
| Sep 9 | 79.0 | 30.0 | 0.00 |
| Sep 10 | 81.0 | 37.9 | 0.00 |
| Sep 11 | 75.0 | 37.0 | 0.00 |
| Sep 12 | 81.0 | 41.0 | 0.00 |
| Sep 13 | 66.9 | 37.9 | 0.00 |
| Sep 14 | 64.9 | 28.9 | 0.00 |
| Sep 15 | 73.9 | 28.9 | 0.00 |
| Sep 16 | 81.0 | 37.9 | 0.00 |
| Sep 17 | 79.0 | 51.1 | – |
| Sep 18 | 63.0 | 36.0 | 0.28 |
| Sep 19 | 66.0 | 36.0 | 0.00 |
| Sep 20 | 73.9 | 39.0 | 0.00 |
| Sep 21 | 75.9 | 37.9 | 0.00 |
| Sep 22 | 73.0 | 39.9 | 0.33 |
| Sep 23 | 77.0 | 39.0 | 0.00 |
| Sep 24 | 81.0 | 46.9 | 0.00 |
| Sep 25 | 75.9 | 34.0 | 0.00 |
| Sep 26 | 64.9 | 34.0 | 0.00 |
| Sep 27 | 72.0 | 41.0 | 0.00 |
| Sep 28 | 70.0 | 35.1 | 0.00 |
| Sep 29 | 73.0 | 36.0 | 0.00 |
| Sep 30 | 77.0 | 36.0 | 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 temperature81.0ºF · Sep 10
- Lowest max temperature63.0ºF · Sep 18
- Highest min temperature51.1ºF · Sep 17
- Lowest min temperature28.0ºF · Sep 7
Geo Fairfield - Idaho
Location
- Country
- United States
- State
- Idaho
- County
- Camas
- City
- Fairfield
- Zip Code
- 83327
- Elevation
- 5062 ft
- Longitude
- -114.80
- Latitude
- 43.34
- ICAO
- –
- IATA
- –