Warm
Average highs sit around 32°C, giving warm days by monthly-average standards.
Weather Guide
Best months: July, August, June
Across the year, average daytime temperatures are around 18°C, sunshine averages 6.6h per day, and rainfall totals about 430mm.

Annual averages
Temp
18°C
Rain
430mm
Annual total
Sun
6.6h
Weather score
52
Mixed avg
Warm
Average highs sit around 32°C, giving warm days by monthly-average standards.
Drier
Rainfall averages 12mm, which is relatively low for holiday planning.
Bright
Sunshine averages 12h per day, so bright days are a strong part of the month.
Map
Compare Walla Walla, Washington, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
July32°C average high
July is one of Walla Walla's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
July12mm average rain
July is one of Walla Walla's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsFebruary and April to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
July12 hours average sun
July is one of Walla Walla's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
July96 weather score
July is one of Walla Walla's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.