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Decatur climate
Typical historical weather for Decatur, 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 Decatur.
Annual average
12.7°C
across all months
Warmest month
29.3°C
Jul average high
Coolest month
-5.5°C
Jan average low
Annual rainfall
1123mm
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
37.6°C
5 July 2022
Coldest day
-26.1°C
30 January 2019
Wettest day
66.4mm
7 September 2018
Windiest day
9.9m/s
24 February 2019
See the detail: Decatur on 7 September 2018.