April weather forecastRiver, IN
April
Weather in April
April is a moderate spring month in River, Indiana, with temperature in the range of an average high of 58.6°F (14.8°C) and an average low of 42.1°F (5.6°C).Temperature
April's onset brings a temperature rise, moving from a chilly 46.9°F (8.3°C) in March to a refreshing 58.6°F (14.8°C). River experiences an average nighttime temperature of 42.1°F (5.6°C) in the month of April.Humidity
The average relative humidity in April in River, Indiana, is 76%.Rainfall
April is the month with the most rainfall. Rain falls for 15.7 days and accumulates 3.07" (78mm) of precipitation.Snowfall
Months with snowfall in River, Indiana, are January through April, October through December. April is the last month it regularly snows in River. During 1.7 snowfall days, in April, River aggregates 0.47" (12mm) of snow. Throughout the year, there are 47.8 snowfall days, and 11.93" (303mm) of snow is accumulated.Daylight
In River, the average length of the day in April is 13h and 20min.On the first day of April in River, sunrise is at 7:24 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 8:37 pm EDT.
Sunshine
In River, the average sunshine in April is 6.8h.UV index
The average daily maximum UV index in April in River is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 4 in April transforms into the following instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
River, IN
- Average high temperature in April: 58.6°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in April: 42.1°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in April
River, IN
- Average pressure in April: 29.96"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
River, IN
- Average wind speed in April: 10.1mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in April
River, IN
- Average humidity in April: 76%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in April
River, IN
- Average rainfall in April: 3.07"
The wettest month (with the highest rainfall) is April (3.07").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in April
River, IN
- Average rainfall days in April: 15.7 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in April
River, IN
- Average snowfall in April: 0.47"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
River, IN
- Average snowfall days in April: 1.7 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
River, IN
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 6h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in April
River, IN
- Average sunshine days in April: 11.7 days
The month with the most sunshine days is October (16 days).
The months with the least sunshine days are February and May (10.5 days).
Average UV index in April
River, IN
- Average UV index in April: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in April
River, IN
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in April
River, IN
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January and August (5mi).





