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Kennewick, WA weather and climate

Benton County, WA · population 84,389 · about 554 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Kennewick's own coordinates.

The year at a glance

Sunny days
218
clear or partly cloudy, per year
Precipitation
9 in
per year
Wet days
60
rain or snow per year
Snowfall
6 in
per year
Hot days
48
above 90 °F
Freezing nights
87
at or below 32 °F
Humidity
57%
average relative
Average temperature
55 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
406080JanMarMayJulSepNovDaily high, Jan: 42 °FDaily high, Feb: 48 °FDaily high, Mar: 58 °FDaily high, Apr: 66 °FDaily high, May: 75 °FDaily high, Jun: 82 °FDaily high, Jul: 91 °FDaily high, Aug: 90 °FDaily high, Sep: 80 °FDaily high, Oct: 66 °FDaily high, Nov: 50 °FDaily high, Dec: 41 °FDaily low, Jan: 29 °FDaily low, Feb: 30 °FDaily low, Mar: 35 °FDaily low, Apr: 41 °FDaily low, May: 49 °FDaily low, Jun: 55 °FDaily low, Jul: 61 °FDaily low, Aug: 60 °FDaily low, Sep: 51 °FDaily low, Oct: 42 °FDaily low, Nov: 34 °FDaily low, Dec: 29 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high424858667582919080665041
Daily low293035414955616051423429

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.00.51.01.5JanMarMayJulSepNovKennewick, Jan: 1.3 inKennewick, Feb: 0.9 inKennewick, Mar: 0.9 inKennewick, Apr: 0.7 inKennewick, May: 0.7 inKennewick, Jun: 0.5 inKennewick, Jul: 0.1 inKennewick, Aug: 0.2 inKennewick, Sep: 0.3 inKennewick, Oct: 0.9 inKennewick, Nov: 1.1 inKennewick, Dec: 1.4 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Kennewick1.30.90.90.70.70.50.10.20.30.91.11.4

Monthly sunny days

Days each month with clear or partly cloudy skies.

0102030JanMarMayJulSepNovKennewick, Jan: 10 daysKennewick, Feb: 13 daysKennewick, Mar: 15 daysKennewick, Apr: 16 daysKennewick, May: 19 daysKennewick, Jun: 22 daysKennewick, Jul: 29 daysKennewick, Aug: 28 daysKennewick, Sep: 25 daysKennewick, Oct: 20 daysKennewick, Nov: 12 daysKennewick, Dec: 10 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Kennewick101315161922292825201210

Compare Kennewick with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Washington city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).