Mild
Average highs are around 22°C, so days are mild rather than hot.
Weather Guide
Mount Vernon, Washington, United States Average Monthly Weather
Weather score35Poor annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 14°C, sunshine averages 5.4h per day, and rainfall totals about 1027mm.
Annual weather
Annual averages
Temp
14°C
Rain
1027mm
Annual total
Sun
5.4h
Weather score
35
Poor avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 40mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.6h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Mount Vernon, Washington, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August22°C average high
August is one of Mount Vernon's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August40mm average rain
August is one of Mount Vernon's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsMay to September
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August8.6 hours average sun
August is brighter than Mount Vernon's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
August65 weather score
August is one of Mount Vernon's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
