April weather forecast
Sussex, WI

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Weather in April

April is a fresh spring month in Sussex, Wisconsin, with temperature in the range of an average low of 37°F (2.8°C) and an average high of 51.4°F (10.8°C).

Temperature

The average high-temperature increases in April, moving from an icy 40.6°F (4.8°C) in March to a cool 51.4°F (10.8°C). Sussex's average low-temperature during April nights is observed to be a cold 37°F (2.8°C).

Humidity

The months with the lowest humidity are April and October, with an average relative humidity of 77%.

Rainfall

In April, the rain falls for 15.8 days. Throughout April, 3.15" (80mm) of precipitation is accumulated. Throughout the year, there are 149.2 rainfall days, and 28.54" (725mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Sussex, in April, snow falls for 3.1 days, with typically accumulated 1.61" (41mm) of snow. In Sussex, during the entire year, snow falls for 58.7 days and aggregates up to 20.47" (520mm) of snow.

Daylight

In April, the average length of the day is 13h and 26min.
On the first day of April, sunrise is at 6:33 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 7:53 pm CDT.

Sunshine

In April, the average sunshine is 7.4h.

UV index

In Sussex, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 3 in April transforms into the following instructions:
Take precautions - Protection against sunburn is recommended. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April?

April temperatures vary between a high-temperature of 51.4°F (10.8°C) and a low-temperature of 37°F (2.8°C).

What is the least humid month?

April and October, with an average relative humidity of 77%, are the least humid months.

What is the average humidity in April?

The average relative humidity in April is 77%.

How much does it rain in Sussex in April?

In April, the rain falls for 15.8 days. Throughout April, 3.15" (80mm) of precipitation is accumulated.

How many days does it snow in April?

In Sussex, in April, snow falls for 3.1 days, with typically accumulated 1.61" (41mm) of snow.

What is the average length of the day in April?

The average day length in April is 13h and 26min.

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:33 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 7:53 pm CDT.

How long on average sun shines in April?

In Sussex, Wisconsin, the average sunshine duration in April is 7.4h.

How high is the UV index in April?

In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Sussex, WI

Average temperature in April - Sussex, 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
Sussex, WI

Average pressure in April - Sussex, 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
Sussex, WI

Average wind speed in April - Sussex, 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
Sussex, WI

Average humidity in April - Sussex, 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
Sussex, WI

Average rainfall in April - Sussex, 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
Sussex, WI

Average rainfall days in April - Sussex, 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
Sussex, WI

Average snowfall in April - Sussex, 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
Sussex, WI

Average snowfall days in April - Sussex, 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
Sussex, WI

Average daylight in April / Average sunshine in April - Sussex, 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
Sussex, WI

Average sunshine days in April - Sussex, 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
Sussex, WI

Average UV index in April - Sussex, 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
Sussex, WI

Average cloud cover in April - Sussex, 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
Sussex, WI

Average visibility in April - Sussex, 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).

Sussex, Wisconsin, USA

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