May weather forecastCombined Locks, WI
May
Weather in May
The last month of the spring, May, is a refreshing month in Combined Locks, Wisconsin, with an average temperature ranging between max 63.7°F (17.6°C) and min 45.7°F (7.6°C).Temperature
The beginning of May marks a shift in the average high-temperature, moving from April's cool 50.5°F (10.3°C) to an enjoyable 63.7°F (17.6°C). Nightly temperatures in Combined Locks, Wisconsin, drop to an average low of 45.7°F (7.6°C) in May.Humidity
The average relative humidity in May is 77%.Rainfall
The month with the most rainfall is May, when the rain falls for 16.3 days and typically aggregates up to 3.46" (88mm) of precipitation.Snowfall
In Combined Locks, snow does not fall in May through September.Daylight
In May, the average length of the day is 14h and 48min.On the first day of the month, sunrise is at 5:42 am and sunset at 7:57 pm. On the last day of May, in Combined Locks, sunrise is at 5:12 am and sunset at 8:29 pm CDT.
Sunshine
In Combined Locks, the average sunshine in May is 9h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Combined Locks. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 5 during May leads to these instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Combined Locks, WI
- Average high temperature in May: 63.7°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in May: 45.7°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).
Average pressure in May
Combined Locks, WI
- Average pressure in May: 29.96"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Combined Locks, WI
- Average wind speed in May: 8.7mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in May
Combined Locks, WI
- Average humidity in May: 77%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
Combined Locks, WI
- Average rainfall in May: 3.46"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in May
Combined Locks, WI
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in May
Combined Locks, WI
- Average snowfall in May: 0"
The month with the highest snowfall is December (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Combined Locks, WI
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Combined Locks, WI
- Average daylight in May: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).
Average sunshine days in May
Combined Locks, WI
- Average sunshine days in May: 13.2 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in May
Combined Locks, 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, November and December (UV index 1).
Average cloud cover in May
Combined Locks, WI
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Combined Locks, WI
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





