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
The shift from March to April is marked by an increase in the average high-temperature, moving from an icy 42.6°F (5.9°C) to a cool 54.5°F (12.5°C). An average low-temperature of 37.9°F (3.3°C) is observed during the April nights.Humidity
In Lancaster, the average relative humidity in April is 77%.Rainfall
In Lancaster, in April, it is raining for 15.5 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, there are 134.2 rainfall days, and 27.32" (694mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 1.9 snowfall days, in April, Lancaster aggregates 1.73" (44mm) of snow. Throughout the year, there are 46.7 snowfall days, and 19.49" (495mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 25min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:29 pm. On the last day of April, sunrise is at 5:57 am and sunset at 8:02 pm CDT.
Sunshine
In Lancaster, the average sunshine in April is 7.4h.UV index
The average daily maximum UV index in April in Lancaster is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 3 during April morphs into the following directions:
Guard yourself - Avoiding sunburn is suggested. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
How much does it rain in April?
What is the last month it snows?
What is the average length of the day in April?
When is the sunrise / sunset in April?
How long on average sun shines in April?
How high is the UV index in April?
Average temperature in April
Lancaster, WI
- Average high temperature in April: 54.5°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in April: 37.9°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in April
Lancaster, WI
- Average pressure in April: 29.94"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in April
Lancaster, WI
- Average wind speed in April: 9.9mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in April
Lancaster, WI
- Average humidity in April: 77%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (76%).
Average rainfall in April
Lancaster, WI
- Average rainfall in April: 2.87"
The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in April
Lancaster, WI
- Average rainfall days in April: 15.5 days
The month with the highest number of rainy days is May (18.5 days).
The months with the least rainy days are January and February (3.8 days).
Average snowfall in April
Lancaster, WI
- Average snowfall in April: 1.73"
The month with the highest snowfall is January (4.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Lancaster, WI
- Average snowfall days in April: 1.9 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Lancaster, WI
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in April: 7h and 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in April
Lancaster, WI
- Average sunshine days in April: 12.4 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (10 days).
Average UV index in April
Lancaster, WI
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in April
Lancaster, WI
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
Lancaster, WI
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Lancaster, Wisconsin, USA
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