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Grundy Center climate
Typical historical weather for Grundy Center, 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 Grundy Center.
Annual average
10°C
across all months
Warmest month
28.1°C
Jul average high
Coolest month
-10.1°C
Jan average low
Annual rainfall
995mm
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
23 August 2023
Coldest day
-33.6°C
31 January 2019
Wettest day
89.5mm
30 July 2025
Windiest day
15.1m/s
24 February 2019
See the detail: Grundy Center on 30 July 2025.