United StatesThe climate of Onalaska
The current climate in Onalaska features temperatures ranging from a high of 30°C to a low of -2°C throughout the year. The average yearly temperature is around 16°C. At night, temperatures in the colder months average around -11°C and in the warmer months around 19°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Onalaska, Wisconsin.
Temperature records
The highest temperature recorded in Onalaska in recent years was 40°C in August 2023. The lowest daytime temperature recorded was -25°C in January 2019.
Precipitation and snowfall
On average, Onalaska gets 1422 mm of precipitation each year. Of this, about 118 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.
Best time to visit Onalaska?
The best time to visit Onalaska for mild to warm weather is April up to October. You might get some rain, but the temperatures are just right to explore Onalaska.
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Climate Table of Onalaska
The climate table of Onalaska shows the average temperatures, rainfall, snow, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | -2 | 1 | 7 | 15 | 22 | 28 | 30 | 29 | 25 | 17 | 8 | 1 |
| Temp. min (°C) | -10 | -9 | -3 | 5 | 11 | 17 | 19 | 18 | 15 | 8 | -1 | -6 |
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| Precipitation (mm) | 32 | 48 | 71 | 136 | 185 | 220 | 209 | 111 | 184 | 113 | 61 | 52 |
| Snow (cm) | 23 | 29 | 16 | 9,7 | 0 | 0 | 0 | 0 | 0 | 1,0 | 6,3 | 33 |
| UV Index | 2 | 2 | 4 | 3 | 5 | 6 | 5 | 5 | 4 | 2 | 2 | 2 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Temperature charts
These charts display the average temperatures in Onalaska, Wisconsin. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Onalaska
Yearly Temperature in Onalaska
Precipitation charts
These charts show the average amount of precipitation in Onalaska, Wisconsin. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in Onalaska
Total Yearly Precipitation in Onalaska
Average Snowfall per Month in Onalaska
Total Yearly Snowfall in Onalaska
UV index chart
This chart shows the average UV index per month in Onalaska, Wisconsin. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Onalaska
Weather experiences in Onalaska
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Average weather in Onalaska by month
Click on a month below to see detailed weather info for Onalaska. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.