Cold steppe climate
Climate Lewiston - Idaho
Annual high63ºF
Annual low42ºF
Precipitation12.31 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 42 | 30 | 1.08 | 2 |
| Feb | 47 | 31 | 0.78 | 2 |
| Mar | 55 | 36 | 1.15 | 1 |
| Apr | 62 | 40 | 1.32 | 0 |
| May | 71 | 47 | 1.61 | 0 |
| Jun | 78 | 53 | 1.24 | 0 |
| Jul | 89 | 60 | 0.66 | 0 |
| Aug | 89 | 59 | 0.69 | 0 |
| Sep | 78 | 51 | 0.67 | 0 |
| Oct | 63 | 41 | 0.96 | 0 |
| Nov | 48 | 34 | 1.18 | 2 |
| Dec | 40 | 28 | 0.97 | 4 |
- JanHigh 42ºFLow 30ºFPrecip 1.08 inch
- FebHigh 47ºFLow 31ºFPrecip 0.78 inch
- MarHigh 55ºFLow 36ºFPrecip 1.15 inch
- AprHigh 62ºFLow 40ºFPrecip 1.32 inch
- MayHigh 71ºFLow 47ºFPrecip 1.61 inch
- JunHigh 78ºFLow 53ºFPrecip 1.24 inch
- JulHigh 89ºFLow 60ºFPrecip 0.66 inch
- AugHigh 89ºFLow 59ºFPrecip 0.69 inch
- SepHigh 78ºFLow 51ºFPrecip 0.67 inch
- OctHigh 63ºFLow 41ºFPrecip 0.96 inch
- NovHigh 48ºFLow 34ºFPrecip 1.18 inch
- DecHigh 40ºFLow 28ºFPrecip 0.97 inch
Climate summary
What is the average weather in Lewiston, Idaho?
Lewiston experiences a cold semi-arid climate, characterized by hot summers and cold winters with strong seasonal contrast. The area is generally dry, receiving low annual precipitation that is somewhat wetter in spring. Summers are the driest season, while spring sees the most moisture. Winters bring regular snowfall.
Lewiston weather averages
Annual high63ºF
Annual low42ºF
Precipitation12.31 inch
Snowfall11 inch
Daily normals Lewiston - Idaho - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 40.3 | 29.0 | 0.04 | 0.04 | 0.10 | 0.10 |
| Jan 2 | 40.4 | 29.1 | 0.07 | 0.07 | 0.20 | 0.20 |
| Jan 3 | 40.5 | 29.2 | 0.11 | 0.11 | 0.30 | 0.30 |
| Jan 4 | 40.6 | 29.3 | 0.15 | 0.15 | 0.50 | 0.50 |
| Jan 5 | 40.7 | 29.4 | 0.18 | 0.18 | 0.60 | 0.60 |
| Jan 6 | 40.8 | 29.5 | 0.22 | 0.22 | 0.70 | 0.70 |
| Jan 7 | 40.9 | 29.6 | 0.26 | 0.26 | 0.80 | 0.80 |
| Jan 8 | 41.1 | 29.7 | 0.29 | 0.29 | 0.90 | 0.90 |
| Jan 9 | 41.2 | 29.8 | 0.33 | 0.33 | 0.90 | 0.90 |
| Jan 10 | 41.3 | 29.9 | 0.37 | 0.37 | 1.00 | 1.00 |
| Jan 11 | 41.4 | 30.0 | 0.40 | 0.40 | 1.10 | 1.10 |
| Jan 12 | 41.6 | 30.1 | 0.44 | 0.44 | 1.20 | 1.20 |
| Jan 13 | 41.7 | 30.2 | 0.47 | 0.47 | 1.30 | 1.30 |
| Jan 14 | 41.8 | 30.3 | 0.51 | 0.51 | 1.40 | 1.40 |
| Jan 15 | 42.0 | 30.3 | 0.54 | 0.54 | 1.50 | 1.50 |
| Jan 16 | 42.1 | 30.4 | 0.57 | 0.57 | 1.50 | 1.50 |
| Jan 17 | 42.2 | 30.5 | 0.61 | 0.61 | 1.60 | 1.60 |
| Jan 18 | 42.3 | 30.6 | 0.64 | 0.64 | 1.70 | 1.70 |
| Jan 19 | 42.5 | 30.7 | 0.68 | 0.68 | 1.80 | 1.80 |
| Jan 20 | 42.6 | 30.7 | 0.71 | 0.71 | 1.80 | 1.80 |
| Jan 21 | 42.7 | 30.8 | 0.75 | 0.75 | 1.90 | 1.90 |
| Jan 22 | 42.9 | 30.9 | 0.79 | 0.79 | 2.00 | 2.00 |
| Jan 23 | 43.0 | 30.9 | 0.82 | 0.82 | 2.10 | 2.10 |
| Jan 24 | 43.1 | 31.0 | 0.86 | 0.86 | 2.10 | 2.10 |
| Jan 25 | 43.2 | 31.0 | 0.90 | 0.90 | 2.20 | 2.20 |
| Jan 26 | 43.4 | 31.0 | 0.94 | 0.94 | 2.30 | 2.30 |
| Jan 27 | 43.5 | 31.1 | 0.98 | 0.98 | 2.40 | 2.40 |
| Jan 28 | 43.6 | 31.1 | 1.02 | 1.02 | 2.50 | 2.50 |
| Jan 29 | 43.8 | 31.1 | 1.05 | 1.05 | 2.50 | 2.50 |
| Jan 30 | 43.9 | 31.2 | 1.09 | 1.09 | 2.60 | 2.60 |
| Jan 31 | 44.0 | 31.2 | 1.13 | 1.13 | 2.70 | 2.70 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Lewiston - November 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Nov 1 | 48.0 | 41.0 | 0.06 |
| Nov 2 | 55.0 | 36.0 | 0.00 |
| Nov 3 | 52.0 | 39.0 | 0.00 |
| Nov 4 | 44.1 | 37.9 | 0.00 |
| Nov 5 | 46.9 | 37.9 | 0.04 |
| Nov 6 | 51.1 | 35.1 | T |
| Nov 7 | 62.1 | 46.9 | T |
| Nov 8 | 64.0 | 45.0 | 0.00 |
| 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 temperature64.0ºF · Nov 8
- Lowest max temperature44.1ºF · Nov 4
- Highest min temperature46.9ºF · Nov 7
- Lowest min temperature35.1ºF · Nov 6
Geo Lewiston - Idaho
Location
- Country
- United States
- State
- Idaho
- County
- Nez Perce
- City
- Lewiston
- Zip Code
- 83501
- Elevation
- 1430 ft
- Longitude
- -117.02
- Latitude
- 46.37
- ICAO
- –
- IATA
- –