Hot-summer humid continental climate
Climate Washington - Iowa
Annual high60ºF
Annual low38ºF
Precipitation36.49 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 31 | 11 | 1.31 | 6 |
| Feb | 35 | 15 | 1.27 | 7 |
| Mar | 49 | 26 | 2.34 | 2 |
| Apr | 63 | 38 | 3.26 | 1 |
| May | 73 | 49 | 4.58 | 0 |
| Jun | 82 | 59 | 4.70 | 0 |
| Jul | 86 | 63 | 4.31 | 0 |
| Aug | 84 | 61 | 4.17 | 0 |
| Sep | 77 | 51 | 3.60 | 0 |
| Oct | 65 | 40 | 2.91 | 0 |
| Nov | 49 | 28 | 2.35 | 1 |
| Dec | 34 | 16 | 1.69 | 6 |
- JanHigh 31ºFLow 11ºFPrecip 1.31 inch
- FebHigh 35ºFLow 15ºFPrecip 1.27 inch
- MarHigh 49ºFLow 26ºFPrecip 2.34 inch
- AprHigh 63ºFLow 38ºFPrecip 3.26 inch
- MayHigh 73ºFLow 49ºFPrecip 4.58 inch
- JunHigh 82ºFLow 59ºFPrecip 4.70 inch
- JulHigh 86ºFLow 63ºFPrecip 4.31 inch
- AugHigh 84ºFLow 61ºFPrecip 4.17 inch
- SepHigh 77ºFLow 51ºFPrecip 3.60 inch
- OctHigh 65ºFLow 40ºFPrecip 2.91 inch
- NovHigh 49ºFLow 28ºFPrecip 2.35 inch
- DecHigh 34ºFLow 16ºFPrecip 1.69 inch
Climate summary
What is the average weather in Washington, Iowa?
Washington experiences a humid continental climate, marked by a very large seasonal temperature contrast. Summers are warm and fairly wet, with June being the wettest month. Winters are cold and bring regular snowfall, making winter the driest season overall. Precipitation is spread relatively evenly through the year, with winter moisture often arriving as snow.
Washington weather averages
Annual high60ºF
Annual low38ºF
Precipitation36.49 inch
Snowfall23 inch
Daily normals Washington - Iowa - January
| Day | HighºF | LowºF | Prec/ | Prec/ | Snow/ | Snow/ |
|---|---|---|---|---|---|---|
| Jan 1 | 31.0 | 13.8 | 0.04 | 0.04 | 0.20 | 0.20 |
| Jan 2 | 30.9 | 13.5 | 0.09 | 0.09 | 0.40 | 0.40 |
| Jan 3 | 30.7 | 13.3 | 0.13 | 0.13 | 0.60 | 0.60 |
| Jan 4 | 30.6 | 13.1 | 0.18 | 0.18 | 0.80 | 0.80 |
| Jan 5 | 30.4 | 12.8 | 0.22 | 0.22 | 1.00 | 1.00 |
| Jan 6 | 30.3 | 12.6 | 0.26 | 0.26 | 1.20 | 1.20 |
| Jan 7 | 30.2 | 12.4 | 0.30 | 0.30 | 1.50 | 1.50 |
| Jan 8 | 30.1 | 12.2 | 0.34 | 0.34 | 1.70 | 1.70 |
| Jan 9 | 30.0 | 12.0 | 0.38 | 0.38 | 1.90 | 1.90 |
| Jan 10 | 29.9 | 11.8 | 0.43 | 0.43 | 2.20 | 2.20 |
| Jan 11 | 29.9 | 11.7 | 0.47 | 0.47 | 2.40 | 2.40 |
| Jan 12 | 29.8 | 11.5 | 0.51 | 0.51 | 2.60 | 2.60 |
| Jan 13 | 29.8 | 11.3 | 0.55 | 0.55 | 2.90 | 2.90 |
| Jan 14 | 29.8 | 11.2 | 0.59 | 0.59 | 3.20 | 3.20 |
| Jan 15 | 29.8 | 11.1 | 0.63 | 0.63 | 3.40 | 3.40 |
| Jan 16 | 29.8 | 11.0 | 0.67 | 0.67 | 3.70 | 3.70 |
| Jan 17 | 29.8 | 10.9 | 0.71 | 0.71 | 3.90 | 3.90 |
| Jan 18 | 29.8 | 10.8 | 0.75 | 0.75 | 4.10 | 4.10 |
| Jan 19 | 29.8 | 10.7 | 0.79 | 0.79 | 4.40 | 4.40 |
| Jan 20 | 29.8 | 10.6 | 0.82 | 0.82 | 4.60 | 4.60 |
| Jan 21 | 29.9 | 10.6 | 0.86 | 0.86 | 4.80 | 4.80 |
| Jan 22 | 30.0 | 10.6 | 0.90 | 0.90 | 5.10 | 5.10 |
| Jan 23 | 30.0 | 10.6 | 0.93 | 0.93 | 5.30 | 5.30 |
| Jan 24 | 30.1 | 10.6 | 0.97 | 0.97 | 5.60 | 5.60 |
| Jan 25 | 30.2 | 10.6 | 1.01 | 1.01 | 5.90 | 5.90 |
| Jan 26 | 30.3 | 10.7 | 1.05 | 1.05 | 6.10 | 6.10 |
| Jan 27 | 30.4 | 10.7 | 1.09 | 1.09 | 6.40 | 6.40 |
| Jan 28 | 30.6 | 10.8 | 1.13 | 1.13 | 6.70 | 6.70 |
| Jan 29 | 30.7 | 10.9 | 1.17 | 1.17 | 7.00 | 7.00 |
| Jan 30 | 30.8 | 11.0 | 1.21 | 1.21 | 7.20 | 7.20 |
| Jan 31 | 31.0 | 11.2 | 1.25 | 1.25 | 7.50 | 7.50 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Washington - October 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Oct 1 | 69.1 | 62.1 | 1.15 |
| Oct 2 | 70.0 | 48.9 | 0.35 |
| Oct 3 | 70.0 | 45.0 | 0.00 |
| Oct 4 | 72.0 | 46.0 | 0.00 |
| Oct 5 | – | – | – |
| Oct 6 | – | – | – |
| Oct 7 | – | – | – |
| Oct 8 | 82.0 | 45.0 | 0.00 |
| Oct 9 | 80.1 | 46.0 | 0.37 |
| Oct 10 | 80.1 | 57.9 | 0.02 |
| Oct 11 | 84.0 | 54.0 | 0.00 |
| Oct 12 | 86.0 | 55.0 | 0.00 |
| Oct 13 | 86.0 | 57.9 | T |
| Oct 14 | 78.1 | 57.9 | 0.13 |
| Oct 15 | 62.1 | 57.9 | 0.01 |
| Oct 16 | 64.9 | 45.0 | 0.05 |
| Oct 17 | 53.1 | 30.9 | 0.02 |
| Oct 18 | – | – | – |
| Oct 19 | 64.9 | – | 0.00 |
| Oct 20 | – | – | – |
| Oct 21 | – | – | – |
| Oct 22 | 73.9 | 43.0 | 0.00 |
| Oct 23 | 77.0 | 45.0 | 0.00 |
| Oct 24 | – | – | – |
| Oct 25 | 77.0 | 46.9 | 0.00 |
| Oct 26 | 79.0 | 46.9 | 0.00 |
| Oct 27 | 73.9 | 52.0 | 0.00 |
| Oct 28 | 66.9 | 46.0 | 0.00 |
| Oct 29 | 73.9 | 51.1 | 0.02 |
| 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 temperature86.0ºF · Oct 12
- Lowest max temperature53.1ºF · Oct 17
- Highest min temperature62.1ºF · Oct 1
- Lowest min temperature30.9ºF · Oct 17
Geo Washington - Iowa
Location
- Country
- United States
- State
- Iowa
- County
- Washington
- City
- Washington
- Zip Code
- 52353
- Elevation
- 751 ft
- Longitude
- -91.68
- Latitude
- 41.28
- ICAO
- –
- IATA
- –