Dry-summer warm continental climate
Climate Rosalia - Washington
Annual high59ºF
Annual low35ºF
Precipitation17.34 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 37 | 23 | 2.06 | 8 |
| Feb | 41 | 26 | 1.48 | 2 |
| Mar | 50 | 30 | 1.59 | 1 |
| Apr | 58 | 34 | 1.37 | 0 |
| May | 66 | 40 | 1.72 | 0 |
| Jun | 73 | 46 | 1.23 | 0 |
| Jul | 84 | 50 | 0.66 | 0 |
| Aug | 84 | 49 | 0.51 | 0 |
| Sep | 75 | 42 | 0.75 | 0 |
| Oct | 61 | 34 | 1.28 | 0 |
| Nov | 44 | 28 | 2.46 | 3 |
| Dec | 35 | 22 | 2.23 | 10 |
- JanHigh 37ºFLow 23ºFPrecip 2.06 inch
- FebHigh 41ºFLow 26ºFPrecip 1.48 inch
- MarHigh 50ºFLow 30ºFPrecip 1.59 inch
- AprHigh 58ºFLow 34ºFPrecip 1.37 inch
- MayHigh 66ºFLow 40ºFPrecip 1.72 inch
- JunHigh 73ºFLow 46ºFPrecip 1.23 inch
- JulHigh 84ºFLow 50ºFPrecip 0.66 inch
- AugHigh 84ºFLow 49ºFPrecip 0.51 inch
- SepHigh 75ºFLow 42ºFPrecip 0.75 inch
- OctHigh 61ºFLow 34ºFPrecip 1.28 inch
- NovHigh 44ºFLow 28ºFPrecip 2.46 inch
- DecHigh 35ºFLow 22ºFPrecip 2.23 inch
Climate summary
What is the average weather in Rosalia, Washington?
Rosalia experiences a humid continental climate, characterized by dry summers and wetter winters. The area receives low annual precipitation, with winter moisture often arriving as regular snowfall. Summers are warm, while winters are cold, creating a strong seasonal contrast.
Rosalia weather averages
Annual high59ºF
Annual low35ºF
Precipitation17.34 inch
Snowfall24 inch
Daily normals Rosalia - Washington - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 35.1 | 23.5 | 0.07 | 0.07 | 0.30 | 0.30 |
| Jan 2 | 35.2 | 23.6 | 0.14 | 0.14 | 0.60 | 0.60 |
| Jan 3 | 35.2 | 23.6 | 0.22 | 0.22 | 0.80 | 0.80 |
| Jan 4 | 35.3 | 23.7 | 0.29 | 0.29 | 1.10 | 1.10 |
| Jan 5 | 35.4 | 23.7 | 0.36 | 0.36 | 1.30 | 1.30 |
| Jan 6 | 35.5 | 23.8 | 0.43 | 0.43 | 1.60 | 1.60 |
| Jan 7 | 35.6 | 23.9 | 0.50 | 0.50 | 1.80 | 1.80 |
| Jan 8 | 35.7 | 23.9 | 0.58 | 0.58 | 2.10 | 2.10 |
| Jan 9 | 35.8 | 24.0 | 0.65 | 0.65 | 2.30 | 2.30 |
| Jan 10 | 35.9 | 24.1 | 0.73 | 0.73 | 2.60 | 2.60 |
| Jan 11 | 36.0 | 24.2 | 0.80 | 0.80 | 2.80 | 2.80 |
| Jan 12 | 36.1 | 24.2 | 0.88 | 0.88 | 3.00 | 3.00 |
| Jan 13 | 36.3 | 24.3 | 0.94 | 0.94 | 3.20 | 3.20 |
| Jan 14 | 36.4 | 24.4 | 1.01 | 1.01 | 3.40 | 3.40 |
| Jan 15 | 36.5 | 24.5 | 1.07 | 1.07 | 3.60 | 3.60 |
| Jan 16 | 36.6 | 24.6 | 1.13 | 1.13 | 3.80 | 3.80 |
| Jan 17 | 36.8 | 24.6 | 1.20 | 1.20 | 4.00 | 4.00 |
| Jan 18 | 36.9 | 24.7 | 1.26 | 1.26 | 4.20 | 4.20 |
| Jan 19 | 37.0 | 24.8 | 1.32 | 1.32 | 4.40 | 4.40 |
| Jan 20 | 37.1 | 24.8 | 1.38 | 1.38 | 4.60 | 4.60 |
| Jan 21 | 37.3 | 24.9 | 1.45 | 1.45 | 4.70 | 4.70 |
| Jan 22 | 37.4 | 25.0 | 1.51 | 1.51 | 4.90 | 4.90 |
| Jan 23 | 37.5 | 25.0 | 1.57 | 1.57 | 5.10 | 5.10 |
| Jan 24 | 37.7 | 25.1 | 1.63 | 1.63 | 5.30 | 5.30 |
| Jan 25 | 37.8 | 25.1 | 1.69 | 1.69 | 5.40 | 5.40 |
| Jan 26 | 37.9 | 25.2 | 1.75 | 1.75 | 5.60 | 5.60 |
| Jan 27 | 38.1 | 25.2 | 1.81 | 1.81 | 5.80 | 5.80 |
| Jan 28 | 38.2 | 25.3 | 1.86 | 1.86 | 5.90 | 5.90 |
| Jan 29 | 38.3 | 25.3 | 1.92 | 1.92 | 6.10 | 6.10 |
| Jan 30 | 38.5 | 25.3 | 1.97 | 1.97 | 6.20 | 6.20 |
| Jan 31 | 38.6 | 25.4 | 2.03 | 2.03 | 6.40 | 6.40 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Rosalia - September 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Sep 1 | 82.9 | 51.1 | T |
| Sep 2 | 81.0 | 52.0 | 0.03 |
| Sep 3 | 72.0 | 50.0 | 0.08 |
| Sep 4 | 64.9 | 48.0 | 0.10 |
| Sep 5 | 64.0 | 41.0 | 0.00 |
| Sep 6 | 72.0 | 43.0 | 0.01 |
| Sep 7 | 73.0 | 43.0 | 0.04 |
| Sep 8 | 69.1 | 48.0 | 0.01 |
| Sep 9 | 73.9 | 48.0 | 0.00 |
| Sep 10 | 81.0 | 48.0 | 0.00 |
| Sep 11 | 77.0 | 45.0 | 0.00 |
| Sep 12 | 73.0 | 44.1 | 0.00 |
| Sep 13 | 73.0 | 44.1 | 0.56 |
| Sep 14 | 75.9 | 48.9 | 0.06 |
| Sep 15 | 61.0 | 46.0 | 0.00 |
| Sep 16 | 66.9 | 44.1 | 0.00 |
| Sep 17 | 77.0 | 44.1 | 0.00 |
| Sep 18 | 77.0 | 48.9 | 0.00 |
| Sep 19 | 78.1 | 44.1 | 0.00 |
| Sep 20 | 80.1 | 44.1 | 0.00 |
| Sep 21 | 82.9 | 50.0 | 0.00 |
| Sep 22 | 86.0 | 52.0 | 0.00 |
| Sep 23 | 77.0 | 44.1 | 0.00 |
| Sep 24 | 77.0 | 45.0 | 0.00 |
| Sep 25 | 82.9 | 50.0 | 0.00 |
| Sep 26 | 61.0 | 37.9 | 0.05 |
| Sep 27 | 61.0 | 37.0 | 0.00 |
| Sep 28 | 62.1 | 30.9 | 0.00 |
| Sep 29 | 68.0 | – | 0.00 |
| Sep 30 | 71.1 | – | 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 temperature86.0ºF · Sep 22
- Lowest max temperature61.0ºF · Sep 15
- Highest min temperature52.0ºF · Sep 2
- Lowest min temperature30.9ºF · Sep 28
Geo Rosalia - Washington
Location
- Country
- United States
- State
- Washington
- County
- Whitman
- City
- Rosalia
- Zip Code
- 99170
- Elevation
- 2165 ft
- Longitude
- -117.42
- Latitude
- 47.24
- ICAO
- –
- IATA
- –