Warm
Average highs sit around 31°C, giving warm days by monthly-average standards.
Weather Guide
Kennewick, Washington, United States Average Monthly Weather
Weather score54Mixed annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 19°C, sunshine averages 6.5h per day, and rainfall totals about 189mm.
Annual weather
Annual averages
Temp
19°C
Rain
189mm
Annual total
Sun
6.5h
Weather score
54
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 8mm, which is relatively low for holiday planning.
Bright
Sunshine averages 11h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Kennewick, Washington, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August31°C average high
August is one of Kennewick'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
August8mm average rain
August is close to Kennewick's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
Sun
August11 hours average sun
August is brighter than Kennewick'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
August93 weather score
August is one of Kennewick'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.
