April weather forecastMerrillville, IN
April
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
April shows a rise in the average high-temperature, moving from March's chilly 45.9°F (7.7°C) to a mild 56.8°F (13.8°C). The average temperature during April nights is registered at an icy 41.7°F (5.4°C).Humidity
In Merrillville, the average relative humidity in April 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, 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. April is the last month it regularly snows. During 1.8 snowfall days, in April, Merrillville aggregates 1.14" (29mm) of snow. Throughout the year, in Merrillville, Indiana, there are 45.5 snowfall days, and 12.64" (321mm) of snow is accumulated.Daylight
In Merrillville, the average length of the day in April is 13h and 22min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:15 pm. On the last day of April, 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 Merrillville, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 3 in April leads to these recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in April /
Average sunshine in April
Merrillville, IN
- Average daylight in April: 13h and 24min
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 24min
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).
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).
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).
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).
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).
