Weather in Johnson County in August

General weather information about Johnson County

Average annual temperature is 13.0 °C

Absolute maximum temperature: 34.6 °C

Absolute minimum temperature: -10.1 °C

Number of sunny days: 182 days

Number of rainy days: 175 days

Number of snow days: 8 days

Look at detailed online map of Johnson County

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

Johnson County air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	17.3	20.6	22.6	27.3	29.7	33.1	34.6	34.0	32.1	30.0	25.0	16.4
Average daytime temperature (°C)	6.7	10.7	11.7	18.3	23.3	27.7	29.9	28.4	25.9	19.7	12.7	9.0
Average temperature (°C)	2.9	4.5	5.5	11.4	17.1	21.5	24.1	22.9	20.1	14.2	6.9	4.6
Average night temperature (°C)	0.0	0.0	1.1	5.8	11.2	16.1	19.2	18.2	15.0	9.8	2.7	1.3
Absolute minimum temperature (°C)	-9.5	-10.1	-7.7	-2.6	4.0	10.8	15.3	12.5	10.5	-3.4	-8.3	-7.0

Johnson County monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	10.0	11.0	12.0	13.0	14.0	14.0	14.0	14.0	13.0	11.0	10.0	9.0
Daylight mean duration (h)	9.7	10.7	12.0	13.2	14.3	14.9	14.6	13.7	12.5	11.2	10.0	9.4
Daylight minimum duration (h)	9.0	10.0	11.0	12.0	13.0	14.0	14.0	13.0	11.0	10.0	9.0	9.0
Sunshine mean duration (h)	3.9	7.3	6.7	8.7	10.4	10.8	11.8	10.8	10.1	7.4	7.9	4.6
Precipitation (mm)	139	66	201	96	61	48	103	90	34	72	28	50
Sunny days	7	17	14	14	19	17	7	17	19	18	22	11
Rainy days	20	11	15	16	12	13	24	14	11	13	8	18
Snow days	4	0	2	0	0	0	0	0	0	0	0	2

Johnson County - weather forecast by months

Johnson County weather in january Johnson County weather in february Johnson County weather in march Johnson County weather in april Johnson County weather in may Johnson County weather in june Johnson County weather in july Johnson County weather in august Johnson County weather in september Johnson County weather in october Johnson County weather in november Johnson County weather in december

Best time to visit Johnson County:

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

June — 10.8(h)
July — 11.8(h)
August — 10.8(h)

The largest precipitation sum in Johnson County is at

January — 139(mm)

March — 201(mm)

Weather forecast in the closest to Johnson County admin centers