April weather forecast
Merrimac, WI

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Weather in April

April in Merrimac, Wisconsin, is a cool spring month, with an average temperature fluctuating between 53.2°F (11.8°C) and 36.5°F (2.5°C).

Temperature

The shift into April brings an increase in the average high-temperature, moving from a wintry 41°F (5°C) in March to a fresh 53.2°F (11.8°C). Merrimac experiences an average nighttime temperature of 36.5°F (2.5°C) in the month of April.

Humidity

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

Rainfall

In April, in Merrimac, the rain falls for 10.5 days. Throughout April, 0.83" (21mm) of precipitation is accumulated. Throughout the year, there are 88.4 rainfall days, and 7.4" (188mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Merrimac. April is the last month it regularly snows. During 2.4 snowfall days, in April, Merrimac aggregates 0.35" (9mm) of snow. In Merrimac, during the entire year, snow falls for 40 days and aggregates up to 4.76" (121mm) of snow.

Daylight

The average length of the day in April is 13h and 27min.
On the first day of the month, sunrise is at 6:38 am and sunset at 7:25 pm. On the last day of April, sunrise is at 5:51 am and sunset at 7:59 pm CDT.

Sunshine

In April, the average sunshine in Merrimac, Wisconsin, is 7.2h.

UV index

In Merrimac, Wisconsin, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 3 in April interprets into the following advice:
Take precautions - Protection against skin and eye damage is obliged. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

What are the temperatures in Merrimac in April?

The average high-temperature and low-temperature in Merrimac during April are 53.2°F (11.8°C) and 36.5°F (2.5°C) respectively.

What is the least humid month in Merrimac?

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

What is the average humidity in April in Merrimac?

In Merrimac, Wisconsin, the average relative humidity in April is 77%.

How much does it rain in Merrimac in April?

In April, the rain falls for 10.5 days. Throughout April, 0.83" (21mm) of precipitation is accumulated.

What is the last month it snows in Merrimac?

April is the last month it regularly snows. During 2.4 snowfall days, in April, Merrimac aggregates 0.35" (9mm) of snow.

What is the average length of the day in April in Merrimac?

The average day length in April in Merrimac, Wisconsin, is 13h and 27min.

When are sunrise and sunset in April in Merrimac?

In April, on the first day of the month, sunrise is at 6:38 am and sunset at 7:25 pm. On the last day of the month, in Merrimac, sunrise is at 5:51 am and sunset at 7:59 pm CDT.

How many hours of sunshine does Merrimac have in April?

The average sunshine duration in April is 7.2h.

What is the UV index reading in April in Merrimac?

In April, the average daily maximum UV index in Merrimac, Wisconsin, is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
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
Merrimac, WI

Average temperature in April - Merrimac, WI
  • Average high temperature in April: 53.2°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in April: 36.5°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 (10°F).

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Average pressure in April
Merrimac, WI

Average pressure in April - Merrimac, WI
  • Average pressure in April: 29.96"Hg

The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in April
Merrimac, WI

Average wind speed in April - Merrimac, WI
  • Average wind speed in April: 9.8mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in April
Merrimac, WI

Average humidity in April - Merrimac, WI
  • Average humidity in April: 77%

The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are April and October (77%).

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Average rainfall in April
Merrimac, WI

Average rainfall in April - Merrimac, WI
  • Average rainfall in April: 0.83"

The wettest month (with the highest rainfall) is July (0.98").
The driest month (with the least rainfall) is January (0.28").

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Average rainfall days in April
Merrimac, WI

Average rainfall days in April - Merrimac, WI
  • Average rainfall days in April: 10.5 days

The month with the highest number of rainy days is May (11.8 days).
The month with the least rainy days is February (2.2 days).

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Average snowfall in April
Merrimac, WI

Average snowfall in April - Merrimac, WI
  • Average snowfall in April: 0.35"

The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in April
Merrimac, WI

Average snowfall days in April - Merrimac, WI
  • Average snowfall days in April: 2.4 days

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in April / Average sunshine in April - Merrimac, WI
  • Average daylight in April: 13h and 2min

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 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in April
Merrimac, WI

Average sunshine days in April - Merrimac, WI
  • Average sunshine days in April: 16.4 days

The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is June (13.8 days).

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Average UV index in April
Merrimac, WI

Average UV index in April - Merrimac, WI
  • Average UV index in April: 3

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in April
Merrimac, WI

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

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in April
Merrimac, WI

Average visibility in April - Merrimac, 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).

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Merrimac, Wisconsin, USA

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