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 signals a rise in the average high-temperature, moving from a cold 40.6°F (4.8°C) in March to a cool 53.2°F (11.8°C). The average temperature during April nights is registered at a wintry 35.8°F (2.1°C).Humidity
The months with the lowest humidity are April and October, with an average relative humidity of 78%.Rainfall
In Westby, during April, the rain falls for 14.5 days and regularly aggregates up to 2.95" (75mm) of precipitation. In Westby, during the entire year, the rain falls for 136.1 days and collects up to 28.7" (729mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In April, it is snowing for 4.3 days. Throughout April, 2.32" (59mm) of snow is accumulated. In Westby, during the entire year, snow falls for 60.1 days and aggregates up to 25.24" (641mm) of snow.Daylight
The average length of the day in April is 13h and 28min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:30 pm. On the last day of April, sunrise is at 5:55 am and sunset at 8:05 pm CDT.
Sunshine
In Westby, the average sunshine in April is 7.1h.UV index
The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 3 in April transforms into this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Enhance your sun protection with tightly woven, yet airy clothing. Watch out! The Sun's UV radiation can be nearly magnified twofold 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?
What is the least humid month?
What is the average humidity in April?
How much does it rain 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?
How many hours of sunshine does Westby have in April?
What is the UV index intensity in April?
Average temperature in April
Westby, WI
- Average high temperature in April: 53.2°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in April: 35.8°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in April
Westby, WI
- Average pressure in April: 29.95"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
Westby, WI
- Average wind speed in April: 9.3mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in April
Westby, WI
- Average humidity in April: 78%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and October (78%).
Average rainfall in April
Westby, WI
- Average rainfall in April: 2.95"
The wettest month (with the highest rainfall) is June (4.88").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in April
Westby, WI
- Average rainfall days in April: 14.5 days
The month with the highest number of rainy days is June (18.5 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in April
Westby, WI
- Average snowfall in April: 2.32"
The month with the highest snowfall is February (6.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Westby, WI
- Average snowfall days in April: 4.3 days
The months with the highest number of snowfall days are January and February (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Westby, WI
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in April: 7h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in April
Westby, WI
- Average sunshine days in April: 11.3 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in April
Westby, 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, February, November and December (UV index 1).
Average cloud cover in April
Westby, WI
- Average cloud cover in April: 52
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in April
Westby, WI
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
Westby, Wisconsin, USA
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