April weather forecastSuperior, WI
April
Weather in April
April in Superior is characterized by a delightful spring ambiance. A standout feature of this month is an increase in average temperatures, soaring to a comfortable 46°F (7.8°C). Nature begins its revival, with budding trees and sprouting flowers, painting a colorful canvas all around. Outdoor activities pick up, with hiking and picnic-friendly weather adorning most days. However, spontaneous showers and the occasional gust of wind keep residents on their toes.Temperature
Superior's transition into April sees a rise in the average high-temperature, advancing from a cold 34.7°F (1.5°C) in March to a chilly 46°F (7.8°C). An average low-temperature of 31.3°F (-0.4°C) is recorded during the nights in April.Humidity
The average relative humidity in April is 77%.Rainfall
In April, the rain falls for 6.3 days. Throughout April, 0.39" (10mm) of precipitation is accumulated. Throughout the year, there are 55.7 rainfall days, and 4.33" (110mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Superior, in April, snow falls for 3.4 days, with typically accumulated 0.35" (9mm) of snow. In Superior, during the entire year, snow falls for 42.8 days and aggregates up to 3.39" (86mm) of snow.Daylight
In April, the average length of the day is 13h and 37min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:38 pm. On the last day of April, sunrise is at 5:53 am and sunset at 8:17 pm CDT.
Sunshine
In April, the average sunshine is 6.8h.UV index
In Superior, the average daily maximum UV index in April is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: The average daily UV index of 2 in April transforms into the following instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Superior, WI
- Average high temperature in April: 46°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (17.1°F).
- Average low temperature in April: 31.3°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (4.1°F).
Average pressure in April
Superior, WI
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in April
Superior, WI
- Average wind speed in April: 8.7mph
The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in April
Superior, WI
- Average humidity in April: 77%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in April
Superior, WI
- Average rainfall in April: 0.39"
The wettest month (with the highest rainfall) is July (0.67").
The driest months (with the least rainfall) are January and February (0.16").
Average rainfall days in April
Superior, WI
- Average rainfall days in April: 6.3 days
The month with the highest number of rainy days is May (7.9 days).
The month with the least rainy days is February (0.5 days).
Average snowfall in April
Superior, WI
- Average snowfall in April: 0.35"
The month with the highest snowfall is December (0.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Superior, WI
- Average snowfall days in April: 3.4 days
The months with the highest number of snowfall days are January and December (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Superior, WI
- Average daylight in April: 13h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in April: 6h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in April
Superior, WI
- Average sunshine days in April: 19.9 days
The month with the most sunshine days is January (25.7 days).
The month with the least sunshine days is April (19.9 days).
Average UV index in April
Superior, WI
- Average UV index in April: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in April
Superior, WI
- Average cloud cover in April: 55
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in April
Superior, WI
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
