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
Islip Terrace's April weather indicates a minor ascent in high-temperatures, adjusting from a frosty 44.2°F (6.8°C) in March to a cool 52.9°F (11.6°C). In Islip Terrace, the average low-temperature during April nights tends to settle at a chilly 45.1°F (7.3°C), indicating a slight drop from the daytime peak.Humidity
In Islip Terrace, New York, the average relative humidity in April is 73%.Rainfall
In Islip Terrace, in April, it is raining for 13.7 days, with typically 2.83" (72mm) of accumulated precipitation. In Islip Terrace, during the entire year, the rain falls for 153.2 days and collects up to 34.45" (875mm) of precipitation.Snowfall
April through September are months without snowfall.Daylight
In Islip Terrace, New York, the average length of the day in April is 13h and 20min.On the first day of the month, sunrise is at 6:34 am and sunset at 7:17 pm. On the last day of April, in Islip Terrace, sunrise is at 5:51 am and sunset at 7:48 pm EDT.
Sunshine
The average sunshine in April in Islip Terrace is 8.6h.UV index
In April, the average daily maximum UV index in Islip Terrace is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 3 during April translates into the following directions:
Undertake protective steps - Preventing sun damage is advised. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Islip Terrace?
What is the average humidity in April in Islip Terrace?
How much does it rain in Islip Terrace in April?
When it does not snow in Islip Terrace?
Does it snow in Islip Terrace in April?
How many hours of daylight does Islip Terrace have in April?
What time are sunrise and sunset in April in Islip Terrace?
How long on average sun shines in April in Islip Terrace?
How high is the UV index in April in Islip Terrace?
Average temperature in April
Islip Terrace, NY
- Average high temperature in April: 52.9°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in April: 45.1°F
The month with the highest average low temperature is August (72°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in April
Islip Terrace, 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
Islip Terrace, NY
- Average wind speed in April: 11.5mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).
Average humidity in April
Islip Terrace, NY
- Average humidity in April: 73%
The months with the highest relative humidity are May and June (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall in April
Islip Terrace, NY
- Average rainfall in April: 2.83"
The wettest month (with the highest rainfall) is July (3.86").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in April
Islip Terrace, NY
- Average rainfall days in April: 13.7 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in April
Islip Terrace, NY
- Average snowfall in April: 0"
The month with the highest snowfall is March (1.97").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in April
Islip Terrace, NY
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Islip Terrace, NY
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in April
Islip Terrace, NY
- Average sunshine days in April: 14.9 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in April
Islip Terrace, 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
Islip Terrace, NY
- Average cloud cover in April: 43
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in April
Islip Terrace, 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).
Islip Terrace, New York, USA
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