August weather forecastLa Crosse, WI
August
Weather in August
The heat of summer begins to wane slightly in August, with a small dip in temperature from July highs. However, it remains the second-warmest month with the majority of days experiencing predominantly clear skies. The rainfall also tapers off, replicating the trends of a typical summer month. Without the previous month’s intense heat, August furthers the blend of periods of heatwave interspersed with rainy days. As the month progresses, there are hints of the forthcoming fall season with gradually cooling temperatures.Temperature
La Crosse, Wisconsin, experiences an average high-temperature of a still warm 77.9°F (25.5°C) in August, subtly different from July's 79.3°F (26.3°C). Nighttime temperatures in August average to a mild 58.3°F (14.6°C).Humidity
The average relative humidity in August is 81%.Rainfall
In La Crosse, in August, during 12.7 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. In La Crosse, during the entire year, the rain falls for 129.3 days and collects up to 26.42" (671mm) of precipitation.Snowfall
In La Crosse, Wisconsin, snow does not fall in June through September.Daylight
In August, the average length of the day is 13h and 56min.On the first day of August, sunrise is at 5:54 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:41 pm CDT.
Sunshine
The months with the most sunshine are July and August, with an average of 9.7h of sunshine.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In August, the maximum UV index of 5 translates into these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
La Crosse, WI
- Average high temperature in August: 77.9°F
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).
- Average low temperature in August: 58.3°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 in August
La Crosse, WI
- Average pressure in August: 29.96"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 in August
La Crosse, WI
- Average wind speed in August: 6.2mph
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 in August
La Crosse, WI
- Average humidity in August: 81%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (76%).
Average rainfall in August
La Crosse, WI
- Average rainfall in August: 2.36"
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 in August
La Crosse, WI
- Average rainfall days in August: 12.7 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 in August
La Crosse, WI
- Average snowfall in August: 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 in August
La Crosse, WI
- Average snowfall days in August: 0 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 in August /
Average sunshine in August
La Crosse, WI
- Average daylight in August: 13h and 54min
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 August: 9h and 42min
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 in August
La Crosse, WI
- Average sunshine days in August: 15.3 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 in August
La Crosse, WI
- Average UV index in August: 5
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 in August
La Crosse, WI
- Average cloud cover in August: 32
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 in August
La Crosse, WI
- Average visibility in August: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
