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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
19.1°C
across all months
Warmest month
35.2°C
Jul average high
Coolest month
1.9°C
Jan average low
Annual rainfall
885mm
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
43.3°C
18 July 2022
Coldest day
-20.6°C
16 February 2021
Wettest day
68.7mm
21 September 2018
Windiest day
8.8m/s
28 October 2021
See the detail: Decatur on 21 September 2018.