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 signals a shift in the average high-temperature, moving from March's cold 41.4°F (5.2°C) to a cool 53.6°F (12°C). Waterloo experiences a mean low-temperature of 36.9°F (2.7°C) during April.Humidity
April is the least humid month, with an average relative humidity of 76%.Rainfall
In April, in Waterloo, the rain falls for 14.4 days. Throughout April, 2.28" (58mm) of precipitation is accumulated. Throughout the year, in Waterloo, there are 132.3 rainfall days, and 21.38" (543mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows in Waterloo. During 2.5 snowfall days, in April, Waterloo aggregates 1.14" (29mm) of snow. Throughout the year, in Waterloo, Wisconsin, there are 52.3 snowfall days, and 13.31" (338mm) of snow is accumulated.Daylight
In April, the average length of the day in Waterloo is 13h and 26min.On the first day of the month, sunrise is at 6:36 am and sunset at 7:22 pm. On the last day of April, sunrise is at 5:49 am and sunset at 7:56 pm CDT.
Sunshine
The average sunshine in April in Waterloo is 7.3h.UV index
In April, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 3 during April translates into the following guidance:
Exercise prevention - Warding off sunburn is urged. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Frequently asked questions
What are the temperatures in Waterloo in April?
What is the least humid month in Waterloo?
What is the average humidity in April in Waterloo?
How many days does it rain in April in Waterloo?
What is the last month it snows in Waterloo?
How many hours of daylight does Waterloo have in April?
When is the sunrise / sunset in April in Waterloo?
How many hours of sunshine does Waterloo have in April?
What is the UV index intensity in April in Waterloo?
Average temperature in April
Waterloo, WI
- Average high temperature in April: 53.6°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (23.7°F).
- Average low temperature in April: 36.9°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (11.1°F).
Average pressure in April
Waterloo, WI
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Waterloo, WI
- Average wind speed in April: 10.1mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in April
Waterloo, WI
- Average humidity in April: 76%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in April
Waterloo, WI
- Average rainfall in April: 2.28"
The wettest month (with the highest rainfall) is June (2.87").
The driest month (with the least rainfall) is December (0.87").
Average rainfall days in April
Waterloo, WI
- Average rainfall days in April: 14.4 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in April
Waterloo, WI
- Average snowfall in April: 1.14"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Waterloo, WI
- Average snowfall days in April: 2.5 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Waterloo, 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 0min).
- Average sunshine in April: 7h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in April
Waterloo, WI
- Average sunshine days in April: 11.9 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in April
Waterloo, WI
- Average UV index in April: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in April
Waterloo, WI
- Average cloud cover in April: 52
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in April
Waterloo, 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).
Waterloo, Wisconsin, USA
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