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
As Roslyn Hills welcomes April, the average high-temperature sees a rise, transitioning from a refreshing 55.9°F (13.3°C) in March to a pleasant 68.2°F (20.1°C). Roslyn Hills, in April, observes a steady average low-temperature of 49.1°F (9.5°C).Humidity
The average relative humidity in April is 72%.Rainfall
In Roslyn Hills, in April, it is raining for 15 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, there are 151.1 rainfall days, and 26.22" (666mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows in Roslyn Hills. During 0.3 snowfall days, in April, Roslyn Hills aggregates 0.16" (4mm) of snow. Throughout the year, there are 10.5 snowfall days, and 6.42" (163mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 11min.On the first day of April, sunrise is at 6:54 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 7:59 pm EDT.
Sunshine
In April, the average sunshine is 9.1h.UV index
In April, the average daily maximum UV index 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 the average person.Note: The maximum UV index of 4 during April leads to these instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Roslyn Hills?
What is the average humidity in April?
How much does it rain in April?
What is the last month it snows?
How many hours of daylight does Roslyn Hills 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 in Roslyn Hills?
Average temperature in April
Roslyn Hills, VA
- Average high temperature in April: 68.2°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in April: 49.1°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in April
Roslyn Hills, VA
- Average pressure in April: 30"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in April
Roslyn Hills, VA
- Average wind speed in April: 7.4mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in April
Roslyn Hills, VA
- Average humidity in April: 72%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (68%).
Average rainfall in April
Roslyn Hills, VA
- Average rainfall in April: 2.36"
The wettest month (with the highest rainfall) is August (2.72").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in April
Roslyn Hills, VA
- Average rainfall days in April: 15 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in April
Roslyn Hills, VA
- Average snowfall in April: 0.16"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Roslyn Hills, VA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (3.5 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
Roslyn Hills, VA
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in April: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in April
Roslyn Hills, VA
- Average sunshine days in April: 13.7 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in April
Roslyn Hills, VA
- Average UV index in April: 4
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in April
Roslyn Hills, VA
- Average cloud cover in April: 40
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in April
Roslyn Hills, VA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Roslyn Hills, Virginia, USA
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