ClimateAverages

Kennewick Weather in September

JanFebMarAprMayJunJulAugSepOctNovDec
September daytime high
26.1°C
September overnight low
9.6°C
September average
17.8°C

In September, Kennewick typically sees daytime highs of 26.1°C and overnight lows around 9.6°C. Compared to the annual average high of 17.9°C, September runs +8.2°C.

vs. annual avg high
+8.2°C
Rank among 12 months
#4 warmest
Hottest year overall
2014

Where September ranks in Kennewick

JanFebMarAprMayJunJulAugSep26°OctNovDec

FAQ

What is the average temperature in Kennewick in September?

September in Kennewick averages a daytime high of 26.1°C and an overnight low of 9.6°C.

Is September warm or cold in Kennewick?

September runs +8.2°C compared to Kennewick's annual average high of 17.9°C, ranking #4 of 12 months by warmth.

What should I pack for Kennewick in September?

Plan for daytime highs near 26.1°C and cooler evenings around 9.6°C.

Other months for Kennewick

JanuaryFebruaryMarchAprilMayJuneJulyAugustOctoberNovemberDecember

September in nearby cities

SeattleVancouverSpokaneTacomaBellevueKentEverettRentonFederal WaySpokane ValleyYakimaKirkland