April weather forecast
Merrillville, IN

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Weather in April

April in Merrillville witnesses a significant transformation in weather conditions. Comparatively, rainfall increases from 1.26" (32mm) in March to 2.44" (62mm), making this the month with one of the highest rainfalls. The enhanced rainfall combined with the blossoming mid-spring flora paints a serene, green canvas across the city. This, coupled with longer daylight hours and warm temperatures, promotes spending time in nature exploring Merrillville's picturesque parks and trails.

Temperature

Merrillville's transition into April brings a rise in the average high-temperature, moving from a frosty 45.9°F (7.7°C) in March to a mild 56.8°F (13.8°C). Throughout April, the average low-temperature in Merrillville records at an icy 41.7°F (5.4°C).

Humidity

The average relative humidity in April in Merrillville is 75%.

Rainfall

In Merrillville, in April, it is raining for 15.1 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, in Merrillville, Indiana, there are 146.6 rainfall days, and 23.31" (592mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Merrillville, Indiana. April is the last month it regularly snows in Merrillville. During 1.8 snowfall days, in April, Merrillville aggregates 1.14" (29mm) of snow. Throughout the year, there are 45.5 snowfall days, and 12.64" (321mm) of snow is accumulated.

Daylight

The average length of the day in April in Merrillville is 13h and 22min.
On the first day of April in Merrillville, sunrise is at 6:30 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 7:46 pm CDT.

Sunshine

In Merrillville, the average sunshine in April is 7.4h.

UV index

In April, the average daily maximum UV index in Merrillville is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 3 during April translates into the following directions:
Take necessary precautions - Protection from skin and eye injury is mandatory. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What is the average April temperature in Merrillville?

An average high-temperature, in April, in Merrillville, is 56.8°F (13.8°C) and the average low-temperature is 41.7°F (5.4°C).

What is the average humidity in April in Merrillville?

In April, the average relative humidity in Merrillville, Indiana, is 75%.

How much does it rain in Merrillville in April?

In April, in Merrillville, Indiana, the rain falls for 15.1 days. Throughout April, 2.44" (62mm) of precipitation is accumulated.

What is the last month it snows in Merrillville?

April is the last month it regularly snows in Merrillville. During 1.8 snowfall days, in April, Merrillville aggregates 1.14" (29mm) of snow.

How many hours of daylight does Merrillville have in April?

In April, the average day length in Merrillville, Indiana, is 13h and 22min.

When is the sunrise / sunset in April in Merrillville?

In April, on the first day of the month, sunrise is at 6:30 am and sunset at 7:15 pm. On the last day of the month, in Merrillville, sunrise is at 5:46 am and sunset at 7:46 pm CDT.

How many hours of sunshine does Merrillville have in April?

The average sunshine duration in April is 7.4h.

How high is the UV index in April in Merrillville?

The average daily maximum UV index in April in Merrillville is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's 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
Merrillville, IN

Average temperature in April - Merrillville, IN
  • Average high temperature in April: 56.8°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in April: 41.7°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in April
Merrillville, IN

Average pressure in April - Merrillville, IN
  • Average pressure in April: 29.95"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in April
Merrillville, IN

Average wind speed in April - Merrillville, IN
  • Average wind speed in April: 9.8mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in April
Merrillville, IN

Average humidity in April - Merrillville, IN
  • Average humidity in April: 75%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in April
Merrillville, IN

Average rainfall in April - Merrillville, IN
  • Average rainfall in April: 2.44"

The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is November (1.06").

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Average rainfall days in April
Merrillville, IN

Average rainfall days in April - Merrillville, IN
  • Average rainfall days in April: 15.1 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (5.3 days).

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Average snowfall in April
Merrillville, IN

Average snowfall in April - Merrillville, IN
  • Average snowfall in April: 1.14"

The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in April
Merrillville, IN

Average snowfall days in April - Merrillville, IN
  • Average snowfall days in April: 1.8 days

The month with the highest number of snowfall days is January (12.4 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
Merrillville, IN

Average daylight in April / Average sunshine in April - Merrillville, IN
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in April: 7h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in April
Merrillville, IN

Average sunshine days in April - Merrillville, IN
  • Average sunshine days in April: 12 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (10.2 days).

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Average UV index in April
Merrillville, IN

Average UV index in April - Merrillville, IN
  • 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 and December (UV index 1).

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Average cloud cover in April
Merrillville, IN

Average cloud cover in April - Merrillville, IN
  • Average cloud cover in April: 50

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in April
Merrillville, IN

Average visibility in April - Merrillville, IN
  • Average visibility in April: 6mi

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

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Merrillville, Indiana, USA

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