April weather forecast
Greenlawn, NY

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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.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Greenlawn in April?

Greenlawn in April has an average high-temperature of 54°F (12.2°C) and an average low-temperature of 45°F (7.2°C).

What is the average humidity in April in Greenlawn?

In Greenlawn, New York, the average relative humidity in April is 73%.

How much does it rain in Greenlawn in April?

In April, the rain falls for 13.8 days. Throughout April, 2.87" (73mm) of precipitation is accumulated.

What is the last month it snows in Greenlawn?

April is the last month it regularly snows. During 0.2 snowfall days, in April, Greenlawn aggregates 0.04" (1mm) of snow.

How many hours of daylight does Greenlawn have in April?

The average day length in April in Greenlawn, New York, is 13h and 20min.

What time are sunrise and sunset in April in Greenlawn?

In April, on the first day of the month, 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.

How long on average sun shines in April in Greenlawn?

In Greenlawn, New York, the average sunshine duration in April is 8.6h.

What is the UV index intensity in April in Greenlawn?

In April, the average daily maximum UV index in Greenlawn, New York, is 3. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Greenlawn, NY

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in April - Greenlawn, NY
  • Average daylight in April: 13h and 2min

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 4min

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 - 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 - 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 - 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 - 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).

Greenlawn, New York, USA

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