Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April's arrival coincides with a rise in the average high-temperature, moving from March's cool 50.5°F (10.3°C) to a refreshing 63.1°F (17.3°C). April generally records an average low-temperature of 45.7°F (7.6°C).Humidity
In April, the average relative humidity is 72%.Rainfall
In River Mills, in April, during 15.6 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. Throughout the year, there are 165.5 rainfall days, and 31.65" (804mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.3 snowfall days, in April, River Mills aggregates 0.08" (2mm) of snow. In River Mills, during the entire year, snow falls for 16.6 days and aggregates up to 7.8" (198mm) of snow.Daylight
In River Mills, the average length of the day in April is 13h and 16min.On the first day of April, sunrise is at 6:50 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:59 pm EDT.
Sunshine
In River Mills, the average sunshine in April is 8.8h.UV index
In River Mills, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In April, the maximum UV index of 4 suggests this advice:
Make use of precautions - Suggestions to resist sunburn are communicated. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
How much does it rain in River Mills in April?
What is the last month it snows?
How many hours of daylight does River Mills have in April?
When are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index intensity in April?
Average temperature in April
River Mills, MD
- Average high temperature in April: 63.1°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in April: 45.7°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in April
River Mills, MD
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
River Mills, MD
- Average wind speed in April: 8.5mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in April
River Mills, MD
- Average humidity in April: 72%
The months with the highest relative humidity are May and October (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in April
River Mills, MD
- Average rainfall in April: 2.48"
The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in April
River Mills, MD
- Average rainfall days in April: 15.6 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.7 days).
Average snowfall in April
River Mills, MD
- Average snowfall in April: 0.08"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
River Mills, MD
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (4.9 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
River Mills, MD
- Average daylight in April: 13h and 2min
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 5min
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
River Mills, MD
- Average sunshine days in April: 12.5 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in April
River Mills, 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, November and December (UV index 2).
Average cloud cover in April
River Mills, MD
- Average cloud cover in April: 41
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in April
River Mills, 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).
River Mills, Maryland, USA
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