Best year time to visit Grundy County

General weather information about Grundy County

Average annual temperature is 14.8 °C

Absolute maximum temperature: 33.8 °C

Absolute minimum temperature: -7.7 °C

Number of sunny days: 154 days

Number of rainy days: 210 days

Number of snow days: 1 day

* Weather data for Grundy County United States is based on climate observations for 2026 year

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	18.2	24.2	23.2	25.2	28.1	31.4	33.0	33.8	30.2	27.6	23.7	17.2
Average daytime temperature (°C)	10.8	14.3	14.9	18.6	23.3	27.1	28.9	28.2	26.0	20.5	15.1	11.0
Average temperature (°C)	6.6	8.9	9.6	13.5	17.7	21.3	24.0	23.3	20.9	15.4	9.9	6.5
Average night temperature (°C)	3.5	5.3	5.4	9.3	13.3	16.9	20.1	19.7	16.8	11.5	6.2	3.2
Absolute minimum temperature (°C)	-5.0	-6.3	-7.7	2.0	4.4	11.6	17.2	13.8	12.3	3.2	-3.6	-6.9

The best time to visit Grundy County during the most sunny months:

The largest precipitation sum in Grundy County is at

January — 165(mm)

June — 146(mm)

July — 172(mm)

August — 189(mm)

When is the best time to visit Grundy County?

The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Grundy County.

What is the weather like in Grundy County?

See average temperature, rainfall and daylight hours for Grundy County by month in the table above.

How many sunny days does Grundy County have?

The monthly weather statistics above show sunshine and rainfall patterns for Grundy County throughout the year.