Best year time to visit Johnson County

General weather information about Johnson County

Average annual temperature is 12.6 °C

Absolute maximum temperature: 32.0 °C

Absolute minimum temperature: -8.7 °C

Number of sunny days: 155 days

Number of rainy days: 204 days

Number of snow days: 6 days

* Weather data for Johnson 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)	18.7	23.8	24.1	26.4	25.5	29.5	32.0	31.3	30.7	26.8	22.9	16.2
Average daytime temperature (°C)	10.0	12.9	13.6	18.8	20.8	24.0	28.5	27.0	24.8	19.1	13.9	9.8
Average temperature (°C)	4.6	7.5	7.5	12.2	15.0	18.3	22.5	21.4	18.4	12.7	7.0	4.3
Average night temperature (°C)	0.8	3.3	2.5	6.3	10.1	13.2	17.7	16.9	13.2	7.7	2.1	0.4
Absolute minimum temperature (°C)	-8.0	-8.3	-8.7	-1.1	2.4	6.7	13.0	11.6	9.1	1.1	-5.9	-6.8

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

The largest precipitation sum in Johnson County is at

January — 119(mm)

February — 132(mm)

August — 127(mm)

When is the best time to visit Johnson County?

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

What is the weather like in Johnson County?

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

How many sunny days does Johnson County have?

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