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
A slight uplift in the average high-temperature marks April, adjusting from March's chilly 44.2°F (6.8°C) to a cool 52.9°F (11.6°C). A mean low-temperature of 45.1°F (7.3°C) is anticipated during the month of April in Central Islip, a slight step down from the daytime high.Humidity
The average relative humidity in April is 73%.Rainfall
In April, the rain falls for 13.7 days. Throughout April, 2.83" (72mm) of precipitation is accumulated. In Central Islip, New York, 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 in Central Islip.Daylight
In April, the average length of the day is 13h and 20min.On the first day of April in Central Islip, sunrise is at 6:34 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 7:48 pm EDT.
Sunshine
In Central Islip, the average sunshine in April is 8.6h.UV index
In Central Islip, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In April, the UV index of 3 transforms into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Central Islip in April?
What is the average humidity in April in Central Islip?
How much does it rain in Central Islip in April?
When it does not snow in Central Islip?
Does it snow in Central Islip in April?
How many hours of daylight does Central Islip have in April?
When is the sunrise / sunset in April in Central Islip?
How long on average sun shines in April in Central Islip?
What is the UV index intensity in April in Central Islip?
Average temperature in April
Central Islip, 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
Central Islip, 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
Central Islip, 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
Central Islip, 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
Central Islip, 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
Central Islip, 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
Central Islip, 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
Central Islip, 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
Central Islip, 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in April
Central Islip, 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
Central Islip, 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
Central Islip, 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
Central Islip, 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).
Central Islip, New York, USA
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