Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The shift from April to May brings an increase in the average high-temperature, moving from a cool 50.2°F (10.1°C) to a comfortable 64°F (17.8°C). During May, the temperature is averaged to a low of 46.6°F (8.1°C) at night.Humidity
In Custer, the average relative humidity in May is 77%.Rainfall
In May, the rain falls for 16.1 days. Throughout May, 3.07" (78mm) of precipitation is accumulated. In Custer, during the entire year, the rain falls for 123.2 days and collects up to 23.54" (598mm) of precipitation.Snowfall
Months with snowfall in Custer are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Custer aggregates 0.12" (3mm) of snow. Throughout the year, there are 59.4 snowfall days, and 22.83" (580mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 49min.On the first day of May, sunrise is at 5:46 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 8:35 pm CDT.
Sunshine
In May, the average sunshine is 8.3h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 4 in May translates into these instructions:
Undertake protective steps - Preventing sun damage is advised. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Custer in May?
What is the average humidity in May?
How many days does it rain in May in Custer?
What is the last month it snows?
What is the average length of the day in May?
When is the sunrise / sunset in May in Custer?
How many hours of sunshine does Custer have in May?
What is the UV index reading in May?
Average temperature in May
Custer, WI
- Average high temperature in May: 64°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (20.5°F).
- Average low temperature in May: 46.6°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in May
Custer, WI
- Average pressure in May: 29.96"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Custer, WI
- Average wind speed in May: 9.1mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (7.2mph).
Average humidity in May
Custer, WI
- Average humidity in May: 77%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
Custer, WI
- Average rainfall in May: 3.07"
The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in May
Custer, WI
- Average rainfall days in May: 16.1 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in May
Custer, WI
- Average snowfall in May: 0.12"
The month with the highest snowfall is December (5.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Custer, WI
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Custer, WI
- Average daylight in May: 14h and 5min
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: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in May
Custer, WI
- Average sunshine days in May: 12.7 days
The month with the most sunshine days is November (17 days).
The months with the least sunshine days are April, May and June (12.7 days).
Average UV index in May
Custer, WI
- Average UV index in May: 4
The months with the highest UV index are 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
Custer, WI
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in May
Custer, WI
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
Custer, Wisconsin, USA
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