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 in West Allis, Wisconsin, indicates a change in the average high-temperature, moving up from a cold 40.3°F (4.6°C) in March to a cool 50°F (10°C). West Allis's temperature drops to an average low of 37.9°F (3.3°C) during the nights of April.Humidity
The average relative humidity in April in West Allis is 76%.Rainfall
In West Allis, in April, it is raining for 12.8 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, there are 126 rainfall days, and 19.37" (492mm) of precipitation is accumulated.Snowfall
Months with snowfall in West Allis are January through April, October through December. April is the last month it regularly snows. During 2.1 snowfall days, in April, West Allis aggregates 0.83" (21mm) of snow. In West Allis, during the entire year, snow falls for 43.6 days and aggregates up to 11.22" (285mm) of snow.Daylight
In April, the average length of the day is 13h and 26min.On the first day of April, sunrise is at 6:32 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 7:52 pm CDT.
Sunshine
The average sunshine in April in West Allis is 7.3h.UV index
In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 3 during April translates into the following directions:
Act with care - The need to guard against sun damage is communicated. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What are the temperatures in West Allis in April?
What is the average humidity in April in West Allis?
How much does it rain in West Allis in April?
What is the last month it snows in West Allis?
How many hours of daylight does West Allis have in April?
What time are sunrise and sunset in April in West Allis?
How many hours of sunshine does West Allis have in April?
How high is the UV index in April in West Allis?
Average temperature in April
West Allis, WI
- Average high temperature in April: 50°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in April: 37.9°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in April
West Allis, WI
- Average pressure in April: 29.96"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
West Allis, WI
- Average wind speed in April: 10.4mph
The windiest month (with the highest average wind speed) is January (11.4mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in April
West Allis, WI
- Average humidity in April: 76%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall in April
West Allis, WI
- Average rainfall in April: 2.13"
The wettest month (with the highest rainfall) is July (2.56").
The driest months (with the least rainfall) are February and December (0.83").
Average rainfall days in April
West Allis, WI
- Average rainfall days in April: 12.8 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in April
West Allis, WI
- Average snowfall in April: 0.83"
The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
West Allis, WI
- Average snowfall days in April: 2.1 days
The month with the highest number of snowfall days is January (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
West Allis, 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: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in April
West Allis, WI
- Average sunshine days in April: 13.8 days
The month with the most sunshine days is November (17.4 days).
The months with the least sunshine days are July and August (12.7 days).
Average UV index in April
West Allis, WI
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
West Allis, WI
- Average cloud cover in April: 52
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in April
West Allis, WI
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
West Allis, Wisconsin, USA
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