Climate and monthly weather forecastOnalaska, WI
Climate and monthly weather forecast
Weather in January
January, the same as December, in Onalaska, Wisconsin, is another subzero cold winter month, with an average temperature ranging between min 8.2°F (-13.2°C) and max 21.6°F (-5.8°C). January, noted for its average high-temperature of 21.6°F (-5.8°C) and an average low-temperature of 8.2°F (-13.2°C), is considered the coldest month. Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Onalaska, Wisconsin, with an average temperature ranging between min 11.7°F (-11.3°C) and max 25.3°F (-3.7°C). Onalaska experiences an average high-temperature of a still subzero cold 25.3°F (-3.7°C) with the onset of February, subtly varied from January's 21.6°F (-5.8°C). Weather in February »Weather in March
March, the first month of the spring in Onalaska, is an icy month, with an average temperature varying between 25.9°F (-3.4°C) and 40.1°F (4.5°C). The transition from February to March brings a clear temperature rise, with average high-temperatures increasing from a subzero cold 25.3°F (-3.7°C) to a wintry 40.1°F (4.5°C). Weather in March »Weather in April
April in Onalaska, Wisconsin, is a cool spring month, with an average temperature ranging between min 36°F (2.2°C) and max 53.2°F (11.8°C). Onalaska's transition into April sees a rise in the average high-temperature, advancing from a wintry 40.1°F (4.5°C) in March to a cool 53.2°F (11.8°C). Weather in April »Weather in May
May, the last month of the spring in Onalaska, is an enjoyable month, with an average temperature ranging between max 65.3°F (18.5°C) and min 47.7°F (8.7°C). The shift from April to May sees an increase in the average high-temperature, transitioning from a fresh 53.2°F (11.8°C) to a refreshing 65.3°F (18.5°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Onalaska, Wisconsin, with temperature in the range of an average low of 56.8°F (13.8°C) and an average high of 74.7°F (23.7°C). With the arrival of June, the average high-temperature transitions from a comfortable 65.3°F (18.5°C) in May to a moderately hot 74.7°F (23.7°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Onalaska, Wisconsin, with an average temperature ranging between min 61°F (16.1°C) and max 79.3°F (26.3°C). The highest temperatures are recorded in July, with averages reaching a high of 79.3°F (26.3°C) and a low of 61°F (16.1°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Onalaska, Wisconsin, with an average temperature fluctuating between 58.3°F (14.6°C) and 77.9°F (25.5°C). The onset of August brings with it an average high-temperature of a still warm 77.9°F (25.5°C), showing a negligible variation from the month before. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Onalaska, Wisconsin, with an average temperature varying between 71.1°F (21.7°C) and 51.1°F (10.6°C). The shift from August to September coincides with a small decrease in the average high-temperature, down to an agreeable 71.1°F (21.7°C) from a moderately hot 77.9°F (25.5°C). Weather in September »Weather in October
October, like September, is another mild autumn month in Onalaska, Wisconsin, with an average temperature fluctuating between 40.5°F (4.7°C) and 56.3°F (13.5°C). The onset of October marks a clear decrease in the average high-temperature, dropping from an agreeable 71.1°F (21.7°C) in September to a moderate 56.3°F (13.5°C). Weather in October »Weather in November
November, the last month of the autumn in Onalaska, is also an icy month, with an average temperature fluctuating between 41.9°F (5.5°C) and 29.1°F (-1.6°C). November indicates a noticeable reduction in the average high-temperature, moving down from a moderate 56.3°F (13.5°C) in October to an icy 41.9°F (5.5°C). Weather in November »Weather in December
December, the first month of the winter in Onalaska, is still a freezing cold month, with an average temperature varying between 27.5°F (-2.5°C) and 17.1°F (-8.3°C). Onalaska's weather in December is marked by a clear decrease in the average high-temperature, moving down from November's cold 41.9°F (5.5°C) to a subzero cold 27.5°F (-2.5°C). Weather in December »Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Onalaska, Wisconsin, notes the coldest temperatures in January, with a average high of 21.6°F (-5.8°C) and a low of 8.2°F (-13.2°C).
The most humid month in Onalaska is January, with an average relative humidity of 90%.
The month with the least rainfall is January, when the rain falls for 3.4 days and typically collects 0.91" (23mm) of precipitation.
Throughout the year, there are 129.3 rainfall days, and 26.42" (671mm) of precipitation is accumulated.
January through May, October through December are months with snowfall in Onalaska, Wisconsin.
In Onalaska, during the entire year, snow falls for 48.3 days and aggregates up to 20.2" (513mm) of snow.
With an average of 3.3h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index in Onalaska are January, February, November and December, with an average maximum UV index of 1.
The month with the most snowfall is February, when snow falls for 11 days and typically aggregates up to 4.8" (122mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Onalaska, Wisconsin, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
The months with the highest UV index are May through August, with an average maximum UV index of 5.
The month with the most rainfall in Onalaska is June, when the rain falls for 16.8 days and typically aggregates up to 4.61" (117mm) of precipitation.
In Onalaska, snow does not fall in June through September.
The month with the longest days in Onalaska, Wisconsin, is June, with an average of 15h and 24min of daylight.
July is the month when Onalaska sees the average highest temperatures, with a high of 79.3°F (26.3°C) and a low of 61°F (16.1°C).
July and August, with an average of 9.7h of sunshine, are months with the most sunshine in Onalaska.
The least humid month is October, with an average relative humidity of 76%.
With an average of 9h and 0min of daylight, December has the shortest days of the year.
Average temperature
Onalaska, WI
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (21.6°F).
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).
Average pressure
Onalaska, WI
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Onalaska, WI
- Average wind speed in January:
8.9mph - Average wind speed in February:
8.8mph - Average wind speed in March:
8.7mph - Average wind speed in April:
9.3mph - Average wind speed in May:
7.9mph - Average wind speed in June:
7mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.6mph - Average wind speed in November:
9mph - Average wind speed in December:
8.6mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Onalaska, WI
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (76%).
Average rainfall
Onalaska, WI
- Average rainfall in January:
0.91" - Average rainfall in February:
0.94" - Average rainfall in March:
1.46" - Average rainfall in April:
2.52" - Average rainfall in May:
3.43" - Average rainfall in June:
4.61"
- Average rainfall in July:
3.03" - Average rainfall in August:
2.36" - Average rainfall in September:
2.32" - Average rainfall in October:
2.13" - Average rainfall in November:
1.3" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is June (4.61").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days
Onalaska, WI
- Average rainfall days in January:
3.4 days - Average rainfall days in February:
3.2 days - Average rainfall days in March:
10 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
17 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
15.9 days - Average rainfall days in August:
12.7 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
10.7 days - Average rainfall days in November:
7.6 days - Average rainfall days in December:
5.2 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (3.2 days).
Average snowfall
Onalaska, WI
- Average snowfall in January:
4.72" - Average snowfall in February:
4.8" - Average snowfall in March:
2.32" - Average snowfall in April:
2.56" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Onalaska, WI
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
11 days - Average snowfall days in March:
7.2 days - Average snowfall days in April:
3 days - Average snowfall days in May:
0.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
1 days - Average snowfall days in November:
4.5 days - Average snowfall days in December:
9.5 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Onalaska, WI
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 6min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
3h and 18min - Average sunshine in February:
3h and 30min - Average sunshine in March:
5h and 24min - Average sunshine in April:
7h and 12min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 6min - Average sunshine in November:
4h and 48min - Average sunshine in December:
3h and 36min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days
Onalaska, WI
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
12 days - Average sunshine days in June:
10.5 days
- Average sunshine days in July:
11.9 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
17.7 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
18.2 days
The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is June (10.5 days).
Average UV index
Onalaska, WI
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Onalaska, WI
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Onalaska, WI
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
