Weather in Onalaska in August

General weather information about Onalaska

Average annual temperature is 10.1 °C

Absolute maximum temperature: 37.1 °C

Absolute minimum temperature: -27.5 °C

Number of sunny days: 198 days

Number of rainy days: 141 days

Number of snow days: 26 days

Look at detailed online map of Onalaska

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

Onalaska air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	5.0	8.5	13.3	26.6	31.2	32.1	32.6	37.1	34.9	29.9	17.2	12.6
Average daytime temperature (°C)	-0.7	2.3	6.2	14.4	23.3	28.3	28.0	28.4	25.2	15.8	8.4	5.5
Average temperature (°C)	-4.8	-3.6	0.5	8.2	16.5	22.2	22.4	22.8	19.7	11.6	3.5	1.2
Average night temperature (°C)	-8.4	-8.0	-3.6	3.6	10.7	16.7	17.2	18.1	15.5	8.3	0.0	-1.5
Absolute minimum temperature (°C)	-27.5	-24.9	-17.6	-5.6	1.8	8.4	12.7	12.9	9.7	-4.0	-12.3	-8.0

Onalaska monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	11.0	12.0	14.0	15.0	15.0	15.0	14.0	13.0	11.0	10.0	9.0
Daylight mean duration (h)	9.3	10.5	11.9	13.4	14.7	15.4	15.1	14.0	12.5	11.0	9.7	9.0
Daylight minimum duration (h)	8.0	9.0	11.0	12.0	14.0	15.0	14.0	13.0	11.0	10.0	9.0	8.0
Sunshine mean duration (h)	4.2	6.2	7.0	8.2	11.5	12.8	12.1	11.4	9.0	6.8	6.6	4.2
Precipitation (mm)	49	45	82	96	49	46	51	97	169	106	6	32
Sunny days	15	15	16	14	18	19	15	15	13	15	24	19
Rainy days	7	8	10	14	13	11	16	16	17	13	6	10
Snow days	9	5	5	2	0	0	0	0	0	3	0	2

Onalaska - weather forecast by months

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

Best time to visit Onalaska:

The best time to visit Onalaska during the most sunny months:

May — 11.5(h)
June — 12.8(h)
July — 12.1(h)
August — 11.4(h)

Months with the longest average daylight duration in Onalaska:

June — 15.4(h)

The largest precipitation sum in Onalaska is at

April — 96(mm)

August — 97(mm)

September — 169(mm)

October — 106(mm)

Weather forecast in the closest to Onalaska admin centers