Is this weather normal in Benton County?

Washington · county records since 1895, through September 2026.

Weather › Washington › Benton County

10 of the last 12 months ran warmer than usual in Benton County. Benton County has warmed about 0.4° per decade since 1970.

This week

Usual for Oct 28 to Nov 3: highs near 56°, lows near 36°

That is the 1991 to 2020 average for these dates in Benton County. The Weather Service forecast fills in below.

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usual high for the datewarmercooler

The last 12 months

Oct: -0.1°OctNov: +4.5°NovDec: +8.9°DecJan 2026: +1.7°JanFeb: +2.0°FebMar: +3.8°MarApr: +0.9°AprMay: +3.1°MayJun: +1.1°JunJul: +1.1°JulAug: +0.9°AugSep: -1.3°Sepwarmercooler

Each bar is a month's average temperature against the usual for that month (1991 to 2020). Ranks compare the same month in every year since 1895.

Every year since 1895

18952025

Rain and drought

Oct: +0.3 inOctNov: +0.4 inNovDec: +0.6 inDecJan 2026: -0.6 inJanFeb: +0.6 inFebMar: -0.1 inMarApr: +0.4 inAprMay: -0.5 inMayJun: -0.4 inJunJul: -0.1 inJulAug: -0.1 inAugSep: +0.3 inSepwetterdrier

Rain and melted snow against the usual for each month. The drought reading is NOAA's Palmer index for the county.

Month by month in Benton County

MonthUsual high / lowUsual rainWarmestColdest
January40° / 28°1.2 in42.8° 195312.1° 1930
February47° / 29°0.8 in44.4° 195821.7° 1936
March56° / 34°0.7 in50.0° 193436.0° 2019
April64° / 39°0.7 in59.0° 193446.5° 1955
May73° / 47°0.8 in65.8° 195855.1° 1984
June80° / 53°0.6 in74.0° 201561.1° 1901
July90° / 59°0.2 in81.2° 190666.7° 1993
August88° / 58°0.2 in77.4° 202264.5° 1899
September79° / 50°0.3 in69.8° 202556.7° 1895
October64° / 40°0.7 in58.0° 202246.2° 1905
November49° / 32°1.0 in46.2° 201627.5° 1985
December39° / 27°1.3 in42.1° 202520.2° 1919

Warmest and coldest are the month's whole-month average temperature, with the year it happened.

Towns in Benton County

Crime Radar: Richland, Pasco, Kennewick, West Richland, Sunnyside, Grandview, Prosser

Nearby counties