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
Stoney Brook's April weather shows an increase in high-temperatures, moving from March's cool 52°F (11.1°C) to a refreshing 64.2°F (17.9°C). April brings with it a nighttime average temperature of 46°F (7.8°C) in Stoney Brook.Humidity
In April, the average relative humidity in Stoney Brook is 72%.Rainfall
In Stoney Brook, during April, the rain falls for 16.3 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, in Stoney Brook, Maryland, there are 161.3 rainfall days, and 33.19" (843mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Stoney Brook. April is the last month it regularly snows. During 0.2 snowfall days, in April, Stoney Brook aggregates 0.28" (7mm) of snow. Throughout the year, in Stoney Brook, there are 17.1 snowfall days, and 10.2" (259mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 15min.On the first day of April in Stoney Brook, sunrise is at 6:51 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:00 pm EDT.
Sunshine
In April, the average sunshine is 8.8h.UV index
The average daily maximum UV index in April in Stoney Brook is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during April translates into these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Boost your sun resistance with garments that are densely woven yet spacious. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
What are April temperatures in Stoney Brook?
What is the average humidity in April in Stoney Brook?
How many days does it rain in April in Stoney Brook?
What is the last month it snows in Stoney Brook?
What is the average length of the day in April in Stoney Brook?
When is the sunrise / sunset in April in Stoney Brook?
How many hours of sunshine does Stoney Brook have in April?
How high is the UV index in April in Stoney Brook?
Average temperature in April
Stoney Brook, MD
- Average high temperature in April: 64.2°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in April: 46°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
Stoney Brook, 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 (29.95"Hg).
Average wind speed in April
Stoney Brook, MD
- Average wind speed in April: 8mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in April
Stoney Brook, MD
- Average humidity in April: 72%
The months with the highest relative humidity are May, October and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in April
Stoney Brook, MD
- Average rainfall in April: 2.87"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in April
Stoney Brook, MD
- Average rainfall days in April: 16.3 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in April
Stoney Brook, MD
- Average snowfall in April: 0.28"
The months with the highest snowfall are January and March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Stoney Brook, MD
- Average snowfall days in April: 0.2 days
The months with the highest number of snowfall days are January and February (5.1 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
Stoney Brook, 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 December (Average sunshine: 4h and 54min).
Average sunshine days in April
Stoney Brook, MD
- Average sunshine days in April: 11.9 days
The month with the most sunshine days is November (19.5 days).
The months with the least sunshine days are May and July (11 days).
Average UV index in April
Stoney Brook, 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, November and December (UV index 2).
Average cloud cover in April
Stoney Brook, MD
- Average cloud cover in April: 42
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
Stoney Brook, MD
- 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).
Stoney Brook, Maryland, USA
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