Mount Vernon, WA Weather & Climate Normals
Mount Vernon's real weather, in one number
Mount Vernon, WA scores 57/100 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.
Mount Vernon's hottest and coldest months
Mount Vernon's hottest month is Aug, averaging 64°F; its coldest is Dec, averaging 41°F, a 23.6°F swing across the year, a middling gap by national standards.
Rain and snow in Mount Vernon
Rain and snow totals are both unavailable at Mount Vernon's nearest NOAA station, so neither figure is shown here rather than assumed.
Where Mount Vernon ranks
Mount Vernon ranks 669 of 4876 US cities in this dataset for comfort score, and 14 of 125 within WA. About 35,344 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from MT VERNON 3 WNW, WA US, 3.8 miles from Mount Vernon, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · What a 30-year climate normal actually is