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 into April brings an increase in the average high-temperature, moving from an icy 40.6°F (4.8°C) in March to a fresh 51.4°F (10.8°C). Hartland reports an average low-temperature of 37°F (2.8°C) during the nights of April.Humidity
April and October, with an average relative humidity of 77%, are the least humid months in Hartland.Rainfall
In April, the rain falls for 15.8 days. Throughout April, 3.15" (80mm) of precipitation is accumulated. In Hartland, during the entire year, the rain falls for 149.2 days and collects up to 28.54" (725mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Hartland, Wisconsin. In Hartland, during April, snow falls for 3.1 days and regularly aggregates up to 1.61" (41mm) of snow. Throughout the year, there are 58.7 snowfall days, and 20.47" (520mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 26min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:20 pm. On the last day of April, sunrise is at 5:47 am and sunset at 7:53 pm CDT.
Sunshine
The average sunshine in April is 7.4h.UV index
In Hartland, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 3 during April translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Hartland?
What are the least humid months in Hartland?
What is the average humidity in April in Hartland?
How much does it rain in Hartland in April?
How much does it snow in Hartland in April?
What is the average length of the day in April in Hartland?
When is the sunrise / sunset in April in Hartland?
How long on average sun shines in April in Hartland?
How high is the UV index in April in Hartland?
Average temperature in April
Hartland, WI
- Average high temperature in April: 51.4°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in April: 37°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 (13.6°F).
Average pressure in April
Hartland, WI
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Hartland, WI
- Average wind speed in April: 10.1mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in April
Hartland, WI
- Average humidity in April: 77%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in April
Hartland, WI
- Average rainfall in April: 3.15"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days in April
Hartland, WI
- Average rainfall days in April: 15.8 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in April
Hartland, WI
- Average snowfall in April: 1.61"
The month with the highest snowfall is January (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Hartland, WI
- Average snowfall days in April: 3.1 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Hartland, 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 month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in April
Hartland, WI
- Average sunshine days in April: 11.3 days
The month with the most sunshine days is November (15.9 days).
The months with the least sunshine days are June and July (10.3 days).
Average UV index in April
Hartland, WI
- Average UV index in April: 3
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Hartland, WI
- Average cloud cover in April: 51
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in April
Hartland, WI
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Hartland, Wisconsin, USA
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