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 beginning of April marks a shift in the average high-temperature, moving from March's cold 34.7°F (1.5°C) to a frosty 46.9°F (8.3°C). In Mercer, April is marked by an average low-temperature of 31.1°F (-0.5°C).Humidity
In Mercer, the average relative humidity in April is 77%.Rainfall
In Mercer, in April, it is raining for 12.2 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 126.3 rainfall days, and 24.09" (612mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Mercer, in April, during 10.7 snowfall days, 8.15" (207mm) of snow is typically accumulated. In Mercer, during the entire year, snow falls for 120.8 days and aggregates up to 54.92" (1395mm) of snow.Daylight
In Mercer, the average length of the day in April is 13h and 35min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:29 pm. On the last day of April, sunrise is at 5:46 am and sunset at 8:07 pm CDT.
Sunshine
In April, the average sunshine is 6.3h.UV index
In April, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In April, the maximum UV index of 3 translates into these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April in Mercer?
How much does it rain in Mercer in April?
How much does it snow in April?
What is the average length of the day in April?
When are sunrise and sunset in April in Mercer?
How long on average sun shines in April?
How high is the UV index in April in Mercer?
Average temperature in April
Mercer, WI
- Average high temperature in April: 46.9°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (18.3°F).
- Average low temperature in April: 31.1°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (7°F).
Average pressure in April
Mercer, WI
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in April
Mercer, WI
- Average wind speed in April: 8.5mph
The windiest month (with the highest average wind speed) is November (8.8mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in April
Mercer, WI
- Average humidity in April: 77%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (71%).
Average rainfall in April
Mercer, WI
- Average rainfall in April: 2.72"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in April
Mercer, WI
- Average rainfall days in April: 12.2 days
The months with the highest number of rainy days are May and June (16 days).
The month with the least rainy days is January (3 days).
Average snowfall in April
Mercer, WI
- Average snowfall in April: 8.15"
The month with the highest snowfall is December (10.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Mercer, WI
- Average snowfall days in April: 10.7 days
The month with the highest number of snowfall days is January (25.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Mercer, WI
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in April: 6h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in April
Mercer, WI
- Average sunshine days in April: 9.1 days
The month with the most sunshine days is August (14.3 days).
The month with the least sunshine days is January (6.3 days).
Average UV index in April
Mercer, 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, March, November and December (UV index 1).
Average cloud cover in April
Mercer, WI
- Average cloud cover in April: 58
The month with the most cloud cover is January (Cloud cover 82).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in April
Mercer, WI
- Average visibility in April: 5mi
The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February and December (4mi).
Mercer, Wisconsin, USA
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