April weather forecastGreenlawn, NY
April
Weather in April
April is a cool spring month in Greenlawn, New York, with temperature in the range of an average high of 54°F (12.2°C) and an average low of 45°F (7.2°C).Temperature
Greenlawn's transition into April brings a rise in the average high-temperature, moving from a chilly 44.4°F (6.9°C) in March to a cool 54°F (12.2°C). In April, Greenlawn's nighttime temperatures demonstrate a slight decrease, stabilizing at an average of 45°F (7.2°C).Humidity
In April, the average relative humidity in Greenlawn, New York, is 73%.Rainfall
In Greenlawn, in April, it is raining for 13.8 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, there are 152.5 rainfall days, and 35.04" (890mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows in Greenlawn. During 0.2 snowfall days, in April, Greenlawn aggregates 0.04" (1mm) of snow. In Greenlawn, during the entire year, snow falls for 15.5 days and aggregates up to 5.71" (145mm) of snow.Daylight
The average length of the day in April in Greenlawn, New York, is 13h and 20min.On the first day of April in Greenlawn, sunrise is at 6:35 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 7:49 pm EDT.
Sunshine
In Greenlawn, the average sunshine in April is 8.6h.UV index
The average daily maximum UV index in April in Greenlawn is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum high UV index of 3 in April translates into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Greenlawn, NY
- Average high temperature in April: 54°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in April: 45°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in April
Greenlawn, NY
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Greenlawn, NY
- Average wind speed in April: 10.6mph
The windiest month (with the highest average wind speed) is January (12.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in April
Greenlawn, NY
- Average humidity in April: 73%
The months with the highest relative humidity are May and June (76%).
The month with the lowest relative humidity is November (71%).
Average rainfall in April
Greenlawn, NY
- Average rainfall in April: 2.87"
The wettest month (with the highest rainfall) is July (4.09").
The driest month (with the least rainfall) is January (2.09").
Average rainfall days in April
Greenlawn, NY
- Average rainfall days in April: 13.8 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in April
Greenlawn, NY
- Average snowfall in April: 0.04"
The month with the highest snowfall is March (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Greenlawn, NY
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is February (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
Greenlawn, NY
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in April
Greenlawn, NY
- Average sunshine days in April: 14.9 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in April
Greenlawn, NY
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Greenlawn, NY
- Average cloud cover in April: 43
The month with the most cloud cover is December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in April
Greenlawn, NY
- 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).
