April weather forecast
Casco, WI

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Weather in April

April in Casco, Wisconsin, is a chilly spring month, with an average temperature varying between 35.6°F (2°C) and 46.9°F (8.3°C).

Temperature

April comes with an increase, with the average high-temperature moving from a wintry 37°F (2.8°C) in March to a frosty 46.9°F (8.3°C). During the month of April, Casco's nighttime temperature lowers to an average of 35.6°F (2°C).

Humidity

April and May, with an average relative humidity of 76%, are the least humid months in Casco.

Rainfall

In Casco, in April, it is raining for 14.3 days, with typically 2.76" (70mm) of accumulated precipitation. In Casco, during the entire year, the rain falls for 132.6 days and collects up to 25.55" (649mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In April, it is snowing for 3.4 days. Throughout April, 2.09" (53mm) of snow is accumulated. Throughout the year, there are 59.4 snowfall days, and 18.94" (481mm) of snow is accumulated.

Daylight

The average length of the day in April is 13h and 31min.
On the first day of the month, sunrise is at 6:29 am and sunset at 7:18 pm. On the last day of April, sunrise is at 5:40 am and sunset at 7:54 pm CDT.

Sunshine

In Casco, the average sunshine in April is 7.2h.

UV index

The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In April, a daily UV index of 3 turns into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Casco in April?

An average high-temperature, in April, in Casco, is 46.9°F (8.3°C) and the average low-temperature is 35.6°F (2°C).

What is the least humid month?

The months with the lowest humidity are April and May, with an average relative humidity of 76%.

What is the average humidity in April?

In April, the average relative humidity is 76%.

How many days does it rain in April in Casco?

In Casco, during April, the rain falls for 14.3 days and regularly aggregates up to 2.76" (70mm) of precipitation.

How much does it snow in April?

In April, it is snowing for 3.4 days. Throughout April, 2.09" (53mm) of snow is accumulated.

What is the average length of the day in April?

In April, the average day length is 13h and 31min.

When is the sunrise / sunset in April?

On the first day of April, sunrise is at 6:29 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 7:54 pm CDT.

How many hours of sunshine does Casco have in April?

In April, the average sunshine duration is 7.2h.

What is the UV index reading in April?

In Casco, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from 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
Casco, WI

Average temperature in April - Casco, WI
  • Average high temperature in April: 46.9°F

The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (25°F).

  • Average low temperature in April: 35.6°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

Average pressure in April
Casco, WI

Average pressure in April - Casco, WI
  • Average pressure in April: 29.97"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in April
Casco, WI

Average wind speed in April - Casco, WI
  • Average wind speed in April: 11.2mph

The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in April
Casco, WI

Average humidity in April - Casco, WI
  • Average humidity in April: 76%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and May (76%).

Average rainfall in April
Casco, WI

Average rainfall in April - Casco, WI
  • Average rainfall in April: 2.76"

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is February (1.38").

Average rainfall days in April
Casco, WI

Average rainfall days in April - Casco, WI
  • Average rainfall days in April: 14.3 days

The month with the highest number of rainy days is May (15.3 days).
The months with the least rainy days are January and February (4.2 days).

Average snowfall in April
Casco, WI

Average snowfall in April - Casco, WI
  • Average snowfall in April: 2.09"

The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in April
Casco, WI

Average snowfall days in April - Casco, WI
  • Average snowfall days in April: 3.4 days

The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Casco, WI

Average daylight in April / Average sunshine in April - Casco, WI
  • Average daylight in April: 13h and 3min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in April: 7h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 3h and 12min).

Average sunshine days in April
Casco, WI

Average sunshine days in April - Casco, WI
  • Average sunshine days in April: 11.4 days

The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (11 days).

Average UV index in April
Casco, WI

Average UV index in April - Casco, 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
Casco, WI

Average cloud cover in April - Casco, WI
  • Average cloud cover in April: 52

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in April
Casco, WI

Average visibility in April - Casco, WI
  • Average visibility in April: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Casco, Wisconsin, USA

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