May weather forecastLa Crosse, WI
May
Weather in May
The month of May in La Crosse bears the full bloom of spring weather. A pronounced warmth sets in with temperatures rising significantly higher than in previous months. With the increase in temperature comes a surge in humidity levels, thereby increasing chances of rainfall and making May the year's wettest month with 3.43" (87mm) of rain. The longer daylight hours offer ample opportunities for outdoor activities, while the UV index starts to climb, requiring attention towards sun protection. As spring turns into summer, the weather in May sets the stage for the warmest time of the year.Temperature
As April gives way to May, the average high-temperature displays an increase, moving from a fresh 53.2°F (11.8°C) to a comfortable 65.3°F (18.5°C). Throughout May, La Crosse's nights cool down to an average of 47.7°F (8.7°C).Humidity
The average relative humidity in May is 80%.Rainfall
In La Crosse, in May, it is raining for 17 days, with typically 3.43" (87mm) of accumulated precipitation. Throughout the year, there are 129.3 rainfall days, and 26.42" (671mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, La Crosse aggregates 0.16" (4mm) of snow. Throughout the year, there are 48.3 snowfall days, and 20.2" (513mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 45min.On the first day of the month, sunrise is at 5:55 am and sunset at 8:08 pm. On the last day of May, sunrise is at 5:25 am and sunset at 8:39 pm CDT.
Sunshine
In May, the average sunshine is 8.3h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in La Crosse. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, the UV index of 5 transforms into the following advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
La Crosse, WI
- Average high temperature in May: 65.3°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 May: 47.7°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 May
La Crosse, WI
- Average pressure in May: 29.94"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 May
La Crosse, WI
- Average wind speed in May: 7.9mph
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 May
La Crosse, WI
- Average humidity in May: 80%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (76%).
Average rainfall in May
La Crosse, WI
- Average rainfall in May: 3.43"
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 May
La Crosse, WI
- Average rainfall days in May: 17 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 May
La Crosse, WI
- Average snowfall in May: 0.16"
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 May
La Crosse, WI
- Average snowfall days in May: 0.3 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 May /
Average sunshine in May
La Crosse, WI
- Average daylight in May: 14h and 48min
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 May: 8h and 18min
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 May
La Crosse, WI
- Average sunshine days in May: 12 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 May
La Crosse, WI
- Average UV index in May: 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 May
La Crosse, WI
- Average cloud cover in May: 45
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 May
La Crosse, WI
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
