Dry-summer warm continental climate
Climate Winthrop - Washington
Annual high59ºF
Annual low32ºF
Precipitation14.75 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 31 | 15 | 1.95 | 15 |
| Feb | 39 | 18 | 1.33 | 8 |
| Mar | 51 | 26 | 1.03 | 3 |
| Apr | 62 | 32 | 0.76 | 0 |
| May | 71 | 40 | 1.12 | 0 |
| Jun | 78 | 46 | 1.18 | 0 |
| Jul | 86 | 50 | 0.75 | 0 |
| Aug | 86 | 49 | 0.54 | 0 |
| Sep | 78 | 41 | 0.42 | 0 |
| Oct | 62 | 32 | 1.08 | 1 |
| Nov | 42 | 25 | 2.09 | 7 |
| Dec | 29 | 14 | 2.50 | 22 |
- JanHigh 31ºFLow 15ºFPrecip 1.95 inch
- FebHigh 39ºFLow 18ºFPrecip 1.33 inch
- MarHigh 51ºFLow 26ºFPrecip 1.03 inch
- AprHigh 62ºFLow 32ºFPrecip 0.76 inch
- MayHigh 71ºFLow 40ºFPrecip 1.12 inch
- JunHigh 78ºFLow 46ºFPrecip 1.18 inch
- JulHigh 86ºFLow 50ºFPrecip 0.75 inch
- AugHigh 86ºFLow 49ºFPrecip 0.54 inch
- SepHigh 78ºFLow 41ºFPrecip 0.42 inch
- OctHigh 62ºFLow 32ºFPrecip 1.08 inch
- NovHigh 42ºFLow 25ºFPrecip 2.09 inch
- DecHigh 29ºFLow 14ºFPrecip 2.50 inch
Climate summary
What is the average weather in Winthrop, Washington?
Winthrop experiences a humid continental climate, characterized by very large seasonal temperature contrasts. Summers are warm and dry, while winters are cold and bring significant snowfall. Despite the winter moisture, the area is dry overall, with precipitation spread relatively evenly throughout the year.
Winthrop weather averages
Annual high59ºF
Annual low32ºF
Precipitation14.75 inch
Snowfall56 inch
Daily normals Winthrop - Washington - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 27.5 | 13.9 | 0.08 | 0.08 | 0.70 | 0.70 |
| Jan 2 | 27.6 | 14.0 | 0.15 | 0.15 | 1.30 | 1.30 |
| Jan 3 | 27.7 | 14.1 | 0.23 | 0.23 | 2.00 | 2.00 |
| Jan 4 | 27.8 | 14.2 | 0.31 | 0.31 | 2.60 | 2.60 |
| Jan 5 | 27.9 | 14.3 | 0.38 | 0.38 | 3.30 | 3.30 |
| Jan 6 | 28.0 | 14.4 | 0.46 | 0.46 | 4.00 | 4.00 |
| Jan 7 | 28.1 | 14.5 | 0.54 | 0.54 | 4.70 | 4.70 |
| Jan 8 | 28.2 | 14.6 | 0.61 | 0.61 | 5.40 | 5.40 |
| Jan 9 | 28.4 | 14.7 | 0.69 | 0.69 | 6.10 | 6.10 |
| Jan 10 | 28.5 | 14.8 | 0.77 | 0.77 | 6.80 | 6.80 |
| Jan 11 | 28.7 | 15.0 | 0.84 | 0.84 | 7.40 | 7.40 |
| Jan 12 | 28.8 | 15.1 | 0.91 | 0.91 | 8.00 | 8.00 |
| Jan 13 | 29.0 | 15.2 | 0.98 | 0.98 | 8.50 | 8.50 |
| Jan 14 | 29.2 | 15.3 | 1.05 | 1.05 | 9.10 | 9.10 |
| Jan 15 | 29.4 | 15.4 | 1.11 | 1.11 | 9.60 | 9.60 |
| Jan 16 | 29.6 | 15.5 | 1.18 | 1.18 | 10.10 | 10.10 |
| Jan 17 | 29.8 | 15.6 | 1.24 | 1.24 | 10.60 | 10.60 |
| Jan 18 | 30.0 | 15.7 | 1.31 | 1.31 | 11.10 | 11.10 |
| Jan 19 | 30.2 | 15.8 | 1.37 | 1.37 | 11.60 | 11.60 |
| Jan 20 | 30.5 | 15.9 | 1.43 | 1.43 | 12.10 | 12.10 |
| Jan 21 | 30.7 | 16.0 | 1.49 | 1.49 | 12.50 | 12.50 |
| Jan 22 | 30.9 | 16.1 | 1.55 | 1.55 | 13.00 | 13.00 |
| Jan 23 | 31.2 | 16.1 | 1.61 | 1.61 | 13.40 | 13.40 |
| Jan 24 | 31.4 | 16.2 | 1.67 | 1.67 | 13.90 | 13.90 |
| Jan 25 | 31.7 | 16.3 | 1.73 | 1.73 | 14.30 | 14.30 |
| Jan 26 | 32.0 | 16.3 | 1.78 | 1.78 | 14.70 | 14.70 |
| Jan 27 | 32.2 | 16.4 | 1.84 | 1.84 | 15.10 | 15.10 |
| Jan 28 | 32.5 | 16.4 | 1.90 | 1.90 | 15.50 | 15.50 |
| Jan 29 | 32.8 | 16.5 | 1.95 | 1.95 | 15.90 | 15.90 |
| Jan 30 | 33.1 | 16.5 | 2.01 | 2.01 | 16.20 | 16.20 |
| Jan 31 | 33.4 | 16.6 | 2.06 | 2.06 | 16.60 | 16.60 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Winthrop - September 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Sep 1 | 81.0 | 43.0 | 0.00 |
| Sep 2 | 81.0 | 43.0 | 0.01 |
| Sep 3 | 70.0 | 50.0 | 0.03 |
| Sep 4 | 68.0 | 50.0 | 0.13 |
| Sep 5 | 69.1 | 41.0 | 0.00 |
| Sep 6 | 73.9 | 39.0 | 0.01 |
| Sep 7 | 75.0 | 45.0 | 0.00 |
| Sep 8 | 79.0 | 43.0 | 0.00 |
| Sep 9 | 81.0 | 42.1 | 0.00 |
| Sep 10 | 82.9 | 48.9 | 0.00 |
| Sep 11 | 81.0 | 43.0 | 0.00 |
| Sep 12 | 75.0 | 41.0 | 0.00 |
| Sep 13 | 73.0 | 52.0 | 0.24 |
| Sep 14 | 71.1 | 39.9 | 0.14 |
| Sep 15 | 69.1 | 52.0 | 0.21 |
| Sep 16 | 75.0 | 39.0 | 0.00 |
| Sep 17 | 81.0 | 37.9 | 0.00 |
| Sep 18 | 81.0 | 39.0 | 0.00 |
| Sep 19 | 82.9 | 39.0 | 0.00 |
| Sep 20 | 82.9 | 41.0 | 0.00 |
| Sep 21 | 81.0 | 45.0 | 0.00 |
| Sep 22 | 80.1 | 42.1 | 0.00 |
| Sep 23 | 73.0 | – | 0.00 |
| Sep 24 | 73.0 | 39.0 | 0.00 |
| Sep 25 | 71.1 | 50.0 | 0.38 |
| Sep 26 | – | – | 0.00 |
| Sep 27 | 66.0 | 30.9 | 0.00 |
| Sep 28 | 70.0 | 32.0 | 0.00 |
| Sep 29 | 69.1 | 51.1 | 0.02 |
| Sep 30 | 69.1 | 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 temperature82.9ºF · Sep 10
- Lowest max temperature66.0ºF · Sep 27
- Highest min temperature52.0ºF · Sep 13
- Lowest min temperature30.9ºF · Sep 27
Geo Winthrop - Washington
Location
- Country
- United States
- State
- Washington
- County
- Okanogan
- City
- Winthrop
- Zip Code
- 98862
- Elevation
- 1693 ft
- Longitude
- -120.15
- Latitude
- 48.42
- ICAO
- –
- IATA
- –