Chehalis climate

Typical historical weather for Chehalis, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for Chehalis.

Annual average

10.9°C

across all months

Warmest month

25.4°C

Aug average high

Coolest month

1.9°C

Feb average low

Annual rainfall

1391mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

42.8°C

28 June 2021

Coldest day

-7.8°C

6 January 2017

Wettest day

78.5mm

20 December 2019

Windiest day

6.5m/s

24 November 2016