Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April comes with an increase, with the average high-temperature moving from a wintry 37.8°F (3.2°C) in March to a cool 50.2°F (10.1°C). In the month of April, Custer's average low-temperature falls to a cold 34.3°F (1.3°C).Humidity
With an average relative humidity of 76%, April is the least humid month.Rainfall
In Custer, during April, the rain falls for 13.2 days and regularly aggregates up to 2.48" (63mm) of precipitation. Throughout the year, in Custer, there are 123.2 rainfall days, and 23.54" (598mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Custer, in April, during 3.8 snowfall days, 2.56" (65mm) of snow is typically accumulated. In Custer, during the entire year, snow falls for 59.4 days and aggregates up to 22.83" (580mm) of snow.Daylight
The average length of the day in April in Custer is 13h and 31min.On the first day of April in Custer, sunrise is at 6:37 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:01 pm CDT.
Sunshine
In April, the average sunshine in Custer is 6.9h.UV index
In Custer, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 3 in April translates into the following instructions:
Be vigilant - Preventing sunburn is recommended. Direct Sun exposure should be minimized especially during midday when radiation is most intense. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
What are April temperatures in Custer?
What is the least humid month in Custer?
What is the average humidity in April in Custer?
How many days does it rain in April in Custer?
How many days does it snow in April in Custer?
What is the average length of the day in April in Custer?
When are sunrise and sunset in April in Custer?
How long on average sun shines in April in Custer?
What is the UV index reading in April in Custer?
Average temperature in April
Custer, WI
- Average high temperature in April: 50.2°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 April: 34.3°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 April
Custer, WI
- Average pressure in April: 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 April
Custer, WI
- Average wind speed in April: 10.3mph
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 April
Custer, WI
- Average humidity in April: 76%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (76%).
Average rainfall in April
Custer, WI
- Average rainfall in April: 2.48"
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 April
Custer, WI
- Average rainfall days in April: 13.2 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 April
Custer, WI
- Average snowfall in April: 2.56"
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 April
Custer, WI
- Average snowfall days in April: 3.8 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 April /
Average sunshine in April
Custer, WI
- Average daylight in April: 13h and 3min
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 April: 6h and 5min
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 April
Custer, WI
- Average sunshine days in April: 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 April
Custer, WI
- Average UV index in April: 3
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 April
Custer, WI
- Average cloud cover in April: 54
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 April
Custer, WI
- Average visibility in April: 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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