Washington, MO Weather & Climate Normals
Washington's real weather, in one number
Washington, MO scores 48/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 5 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Washington's hottest and coldest months
Washington's hottest month is Jul, averaging 78°F; its coldest is Jan, averaging 30°F, a 47.6°F swing across the year, one of the widest gaps in this dataset.
Washington's weather across the year
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 40°F | 20°F | 2.52in | 2.6in |
| Feb | 45°F | 23°F | 2.52in | 1.4in |
| Mar | 56°F | 32°F | 3.66in | 0.7in |
| Apr | 67°F | 43°F | 4.57in | 0.1in |
| May | 76°F | 54°F | 5.3in | 0in |
| Jun | 84°F | 64°F | 4.2in | 0in |
| Jul | 88°F | 67°F | 4.19in | 0in |
| Aug | 87°F | 65°F | 3.75in | 0in |
| Sep | 80°F | 56°F | 3.71in | 0in |
| Oct | 69°F | 44°F | 3.37in | 0in |
| Nov | 55°F | 33°F | 3.67in | 0.4in |
| Dec | 45°F | 24°F | 2.64in | 2.7in |
Apr, May, Jun, Sep, and Oct are the best time to see Washington at its mildest; the rest of the year, plan around Jul's heat and Jan's cold.
Rain and snow in Washington
Washington averages 44.1in of precipitation a year across roughly 109 days with measurable rain or snow, and 7.9in of snow a year.
Where Washington ranks
Washington ranks 2388 of 4876 US cities in this dataset for comfort score, and 45 of 135 within MO. About 15,521 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Washington, MO US, 2.3 miles from Washington, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure