Warm-summer humid continental climate
Climate Saint Charles - Idaho
Annual high55ºF
Annual low28ºF
Precipitation11.26 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 30 | 6 | 0.73 | 10 |
| Feb | 33 | 6 | 0.79 | 8 |
| Mar | 42 | 17 | 0.78 | 5 |
| Apr | 52 | 29 | 1.07 | 3 |
| May | 62 | 39 | 1.59 | 0 |
| Jun | 73 | 46 | 0.89 | 0 |
| Jul | 83 | 51 | 0.73 | 0 |
| Aug | 81 | 48 | 0.78 | 0 |
| Sep | 71 | 39 | 1.13 | 0 |
| Oct | 58 | 30 | 1.13 | 1 |
| Nov | 42 | 20 | 0.89 | 5 |
| Dec | 31 | 10 | 0.75 | 7 |
- JanHigh 30ºFLow 6ºFPrecip 0.73 inch
- FebHigh 33ºFLow 6ºFPrecip 0.79 inch
- MarHigh 42ºFLow 17ºFPrecip 0.78 inch
- AprHigh 52ºFLow 29ºFPrecip 1.07 inch
- MayHigh 62ºFLow 39ºFPrecip 1.59 inch
- JunHigh 73ºFLow 46ºFPrecip 0.89 inch
- JulHigh 83ºFLow 51ºFPrecip 0.73 inch
- AugHigh 81ºFLow 48ºFPrecip 0.78 inch
- SepHigh 71ºFLow 39ºFPrecip 1.13 inch
- OctHigh 58ºFLow 30ºFPrecip 1.13 inch
- NovHigh 42ºFLow 20ºFPrecip 0.89 inch
- DecHigh 31ºFLow 10ºFPrecip 0.75 inch
Climate summary
What is the average weather in Saint Charles, Idaho?
Saint Charles experiences a humid continental climate, marked by very large seasonal temperature contrasts. Winters are very cold and bring significant snowfall. Despite the dry annual precipitation, moisture is spread fairly evenly throughout the year, with spring being the wettest season. Summers are warm, offering a distinct change from the cold winters.
Saint Charles weather averages
Annual high55ºF
Annual low28ºF
Precipitation11.26 inch
Snowfall39 inch
Daily normals Saint Charles - Idaho - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 28.6 | 8.0 | 0.03 | 0.03 | 0.30 | 0.30 |
| Jan 2 | 28.5 | 7.9 | 0.06 | 0.06 | 0.60 | 0.60 |
| Jan 3 | 28.5 | 7.9 | 0.08 | 0.08 | 0.90 | 0.90 |
| Jan 4 | 28.5 | 7.9 | 0.11 | 0.11 | 1.20 | 1.20 |
| Jan 5 | 28.5 | 7.9 | 0.14 | 0.14 | 1.50 | 1.50 |
| Jan 6 | 28.5 | 7.8 | 0.17 | 0.17 | 1.80 | 1.80 |
| Jan 7 | 28.5 | 7.8 | 0.19 | 0.19 | 2.10 | 2.10 |
| Jan 8 | 28.5 | 7.8 | 0.22 | 0.22 | 2.40 | 2.40 |
| Jan 9 | 28.5 | 7.8 | 0.25 | 0.25 | 2.70 | 2.70 |
| Jan 10 | 28.5 | 7.8 | 0.28 | 0.28 | 3.00 | 3.00 |
| Jan 11 | 28.6 | 7.7 | 0.30 | 0.30 | 3.30 | 3.30 |
| Jan 12 | 28.6 | 7.7 | 0.33 | 0.33 | 3.60 | 3.60 |
| Jan 13 | 28.6 | 7.7 | 0.36 | 0.36 | 3.90 | 3.90 |
| Jan 14 | 28.6 | 7.7 | 0.39 | 0.39 | 4.20 | 4.20 |
| Jan 15 | 28.6 | 7.6 | 0.41 | 0.41 | 4.50 | 4.50 |
| Jan 16 | 28.6 | 7.6 | 0.44 | 0.44 | 4.80 | 4.80 |
| Jan 17 | 28.6 | 7.6 | 0.47 | 0.47 | 5.10 | 5.10 |
| Jan 18 | 28.7 | 7.5 | 0.49 | 0.49 | 5.40 | 5.40 |
| Jan 19 | 28.7 | 7.5 | 0.52 | 0.52 | 5.70 | 5.70 |
| Jan 20 | 28.7 | 7.4 | 0.54 | 0.54 | 6.00 | 6.00 |
| Jan 21 | 28.7 | 7.4 | 0.56 | 0.56 | 6.30 | 6.30 |
| Jan 22 | 28.8 | 7.3 | 0.59 | 0.59 | 6.60 | 6.60 |
| Jan 23 | 28.8 | 7.3 | 0.61 | 0.61 | 6.90 | 6.90 |
| Jan 24 | 28.8 | 7.2 | 0.64 | 0.64 | 7.20 | 7.20 |
| Jan 25 | 28.9 | 7.1 | 0.66 | 0.66 | 7.40 | 7.40 |
| Jan 26 | 28.9 | 7.1 | 0.68 | 0.68 | 7.70 | 7.70 |
| Jan 27 | 28.9 | 7.0 | 0.70 | 0.70 | 8.00 | 8.00 |
| Jan 28 | 29.0 | 7.0 | 0.73 | 0.73 | 8.20 | 8.20 |
| Jan 29 | 29.0 | 6.9 | 0.75 | 0.75 | 8.50 | 8.50 |
| Jan 30 | 29.1 | 6.9 | 0.77 | 0.77 | 8.80 | 8.80 |
| Jan 31 | 29.2 | 6.8 | 0.80 | 0.80 | 9.10 | 9.10 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Saint Charles - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | 73.0 | 39.9 | 0.00 |
| Oct 2 | 72.0 | 39.9 | 0.00 |
| Oct 3 | 75.0 | 37.9 | 0.00 |
| Oct 4 | 75.0 | 39.0 | 0.00 |
| Oct 5 | – | – | – |
| Oct 6 | – | – | – |
| Oct 7 | – | – | – |
| Oct 8 | 75.0 | 39.9 | 0.00 |
| Oct 9 | 75.0 | 37.9 | 0.00 |
| Oct 10 | 72.0 | 39.9 | 0.00 |
| Oct 11 | 66.0 | 48.9 | 0.08 |
| Oct 12 | 59.0 | 42.1 | 0.40 |
| Oct 13 | 48.9 | 41.0 | 0.48 |
| Oct 14 | 46.0 | 37.9 | 0.12 |
| Oct 15 | 48.9 | 32.0 | 0.03 |
| Oct 16 | – | – | – |
| Oct 17 | 57.0 | 33.1 | 0.00 |
| Oct 18 | – | – | – |
| Oct 19 | 64.9 | 28.0 | 0.00 |
| Oct 20 | – | – | – |
| Oct 21 | – | – | – |
| Oct 22 | 61.0 | 37.9 | 0.00 |
| Oct 23 | 57.0 | 37.9 | 0.49 |
| Oct 24 | 48.9 | 35.1 | 0.00 |
| Oct 25 | 48.9 | 30.0 | 0.00 |
| Oct 26 | 51.1 | 30.0 | 0.02 |
| Oct 27 | 57.0 | 28.9 | 0.24 |
| Oct 28 | 46.0 | 28.9 | 0.23 |
| Oct 29 | 48.9 | 28.9 | 0.00 |
| Oct 30 | – | – | – |
| Oct 31 | – | – | – |
The data for October 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 temperature75.0ºF · Oct 3
- Lowest max temperature46.0ºF · Oct 14
- Highest min temperature48.9ºF · Oct 11
- Lowest min temperature28.0ºF · Oct 19
Geo Saint Charles - Idaho
Location
- Country
- United States
- State
- Idaho
- County
- –
- City
- Saint Charles
- Zip Code
- 83272
- Elevation
- 5968 ft
- Longitude
- -111.39
- Latitude
- 42.11
- ICAO
- –
- IATA
- –