Dewey climate

Typical historical weather for Dewey, 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 Dewey.

Annual average

16°C

across all months

Warmest month

33.3°C

Jul average high

Coolest month

-2.5°C

Jan average low

Annual rainfall

1119mm

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

40.7°C

20 August 2023

Coldest day

-25.7°C

16 February 2021

Wettest day

90.7mm

15 June 2025

Windiest day

9.5m/s

19 March 2025