Is this weather normal in Walla Walla County?

Washington · county records since 1895, through September 2026.

Weather › Washington › Walla Walla County

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

This week

Usual for Oct 28 to Nov 3: highs near 56°, lows near 37°

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

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usual high for the datewarmercooler

The last 12 months

Oct: -0.4°OctNov: +3.6°NovDec: +8.4°DecJan 2026: +1.5°JanFeb: +2.2°FebMar: +3.2°MarApr: +0.4°AprMay: +2.6°MayJun: +1.0°JunJul: +1.3°JulAug: +0.8°AugSep: -1.2°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: -0.0 inOctNov: +0.4 inNovDec: +0.5 inDecJan 2026: -1.1 inJanFeb: +1.0 inFebMar: +0.0 inMarApr: +1.1 inAprMay: -1.1 inMayJun: -0.7 inJunJul: -0.3 inJulAug: -0.3 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 Walla Walla County

MonthUsual high / lowUsual rainWarmestColdest
January41° / 29°1.8 in43.7° 195311.6° 1930
February47° / 30°1.4 in44.9° 195820.4° 1936
March56° / 35°1.5 in50.2° 193436.3° 2019
April63° / 39°1.5 in57.9° 193445.8° 1955
May72° / 46°1.4 in64.2° 194753.6° 1896
June79° / 52°1.0 in73.4° 201559.9° 1901
July89° / 58°0.3 in79.5° 190666.4° 1993
August88° / 57°0.3 in77.0° 196764.6° 1899
September79° / 50°0.6 in69.5° 202555.4° 1895
October64° / 40°1.3 in57.8° 201446.2° 1905
November49° / 33°1.9 in47.4° 201627.3° 1985
December40° / 28°2.0 in42.8° 202520.5° 1985

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

Towns in Walla Walla County

Crime Radar: Walla Walla, College Place

Nearby counties