Benton County weather, town by town
6 places in Benton County, Washington, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1894 to 2026. Station extremes, not official state records.
Benton County Weather Facts
Benton County has 6 places on myweatherrock (5 cities, 1 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 115°F at Kennewick on August 10, 1898. The coldest night is -29°F at Kennewick on December 13, 1919. The wettest day brought 3.03 inches of rain at Kennewick on May 17, 2019. The biggest single-day snow measured 14.02 inches at Kennewick on November 20, 1921. Those are station measurements from NOAA's daily records, 1894 to 2026, not official state records. By area the largest place is Richland, about 42 square miles.
About Benton County weather
The map on the Now tab shows every Benton County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 6 Benton County towns with station normals, the warmest month is July, when the day usually reaches 91°F, and the coldest is January, when the night usually falls to 28°F. January is the wettest, with rain on about 11 days. January nights run from about 26°F in Prosser to 30°F in Finley.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
Benton County weather records
Measured at the NOAA stations serving these towns, daily records 1894 to 2026. Station extremes, not official state records.
Common questions about Benton County weather
- What is the hottest temperature recorded at a Benton County station?
- 115°F at Kennewick on August 10, 1898, in the NOAA daily station records myweatherrock holds (1894 to 2026).
- What is the coldest temperature recorded at a Benton County station?
- -29°F at Kennewick on December 13, 1919.
- What is the most rain a Benton County station has measured in one day?
- 3.03 inches at Kennewick on May 17, 2019.
- What is the biggest one-day snowfall at a Benton County station?
- 14.02 inches at Kennewick on November 20, 1921.
- How many Benton County towns have a weather page here?
- 6: 5 cities, 1 census-designated places. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the Benton County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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