April weather forecastSouth River Heights, MD
April
Weather in April
April is a comfortable spring month in South River Heights, Maryland, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 62.2°F (16.8°C).Temperature
The average high-temperature increases in April, moving from a fresh 50.5°F (10.3°C) in March to a comfortable 62.2°F (16.8°C). South River Heights's temperature drops to an average low of 48.2°F (9°C) during the nights of April.Humidity
The months with the lowest humidity are January, March, April and November, with an average relative humidity of 72%.Rainfall
In South River Heights, during April, the rain falls for 11.3 days and regularly aggregates up to 0.75" (19mm) of precipitation. In South River Heights, during the entire year, the rain falls for 120.4 days and collects up to 10.47" (266mm) of precipitation.Snowfall
April through October are months without snowfall in South River Heights, Maryland.Daylight
The average length of the day in April is 13h and 15min.On the first day of April, sunrise is at 6:49 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:58 pm EDT.
Sunshine
In South River Heights, the average sunshine in April is 8.8h.UV index
In April, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 4 in April translates into the following instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
South River Heights, MD
- Average high temperature in April: 62.2°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in April: 48.2°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).
Average pressure in April
South River Heights, MD
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
South River Heights, MD
- Average wind speed in April: 9.7mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in April
South River Heights, MD
- Average humidity in April: 72%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).
Average rainfall in April
South River Heights, MD
- Average rainfall in April: 0.75"
The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in April
South River Heights, MD
- Average rainfall days in April: 11.3 days
The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).
Average snowfall in April
South River Heights, MD
- Average snowfall in April: 0"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
South River Heights, MD
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
South River Heights, MD
- Average daylight in April: 13h and 12min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in April: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in April
South River Heights, MD
- Average sunshine days in April: 17 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).
Average UV index in April
South River Heights, MD
- Average UV index in April: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in April
South River Heights, MD
- Average cloud cover in April: 40
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in April
South River Heights, MD
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





