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 sea temperature 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 sees a marginal temperature increase, moving from a chilly 6.1°C (43°F) in March to a cool 10°C (50°F). Shelter Island Heights sees a minor drop to an average minimum temperature of 6.8°C (44.2°F) during the night in the month of April.Humidity
The average relative humidity in April in Shelter Island Heights is 77%.Rainfall
In Shelter Island Heights, in April, it is raining for 14.3 days, with typically 76mm (2.99") of accumulated precipitation. Throughout the year, in Shelter Island Heights, there are 154.1 rainfall days, and 887mm (34.92") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Ocean temperature
In April, the average ocean temperature is 6.9°C (44.4°F).Note: Danger awaits those who swim in 6.9°C (44.4°F) without protection. Falling below 10°C (50°F) means intense cold shock and hyperventilation.
Daylight
The average length of the day in April in Shelter Island Heights is 13h and 20min.On the first day of April, sunrise is at 6:31 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 7:45 pm EDT.
Sunshine
In Shelter Island Heights, the average sunshine in April is 8.4h.UV index
In Shelter Island Heights, New York, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 3 in April translates into the following instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Shelter Island Heights?
What is the average humidity in April in Shelter Island Heights?
How many days does it rain in April in Shelter Island Heights?
When it does not snow in Shelter Island Heights?
Does it snow in Shelter Island Heights in April?
What is the ocean temperature in April in Shelter Island Heights?
How many hours of daylight does Shelter Island Heights have in April?
When are sunrise and sunset in April in Shelter Island Heights?
How long on average sun shines in April in Shelter Island Heights?
What is the UV index intensity in April in Shelter Island Heights?
Average temperature in April
Shelter Island Heights, NY
- Average high temperature in April: 10°C
The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in April: 6.8°C
The month with the highest average low temperature is August (21.8°C).
The coldest month (with the lowest average low temperature) is January (-0.4°C).
Average pressure in April
Shelter Island Heights, NY
- Average pressure in April: 1015.3mbar
The month with the highest atmospheric pressure is November (1018.7mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).
Average wind speed in April
Shelter Island Heights, NY
- Average wind speed in April: 22.2km/h
The windiest month (with the highest average wind speed) is January (25.7km/h).
The calmest month (with the lowest average wind speed) is July (16.8km/h).
Average humidity in April
Shelter Island Heights, NY
- Average humidity in April: 77%
The months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (72%).
Average rainfall in April
Shelter Island Heights, NY
- Average rainfall in April: 76mm
The wettest month (with the highest rainfall) is December (97mm).
The driest month (with the least rainfall) is September (55mm).
Average rainfall days in April
Shelter Island Heights, NY
- Average rainfall days in April: 14.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in April
Shelter Island Heights, NY
- Average snowfall in April: 0mm
The month with the highest snowfall is March (60mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in April
Shelter Island Heights, NY
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Shelter Island Heights, NY
- Average sea temperature in April: 6.9°C
The best month for swimming (with the highest average sea temperature) is August (22.3°C).
The coldest month (with the lowest average sea temperature) is February (3.8°C).
Average daylight in April /
Average sunshine in April
Shelter Island Heights, 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 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in April
Shelter Island Heights, NY
- Average sunshine days in April: 14.7 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in April
Shelter Island Heights, 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 and December (UV index 2).
Average cloud cover in April
Shelter Island Heights, NY
- Average cloud cover in April: 44
The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in April
Shelter Island Heights, NY
- Average visibility in April: 9km
The months with the highest visibility are June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February, March, April, May and December (9km).
Shelter Island Heights, New York, USA
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