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
In Sayville, stepping into April brings a gentle temperature nudge, moving slightly up from March's frosty 44.2°F (6.8°C) to a fresh 52.3°F (11.3°C). Nighttime temperatures in Sayville record an average of 45.1°F (7.3°C) throughout April.Humidity
In April, the average relative humidity in Sayville is 74%.Rainfall
In April, the rain falls for 14.1 days. Throughout April, 2.95" (75mm) of precipitation is accumulated. In Sayville, during the entire year, the rain falls for 155.3 days and collects up to 34.84" (885mm) of precipitation.Snowfall
In Sayville, snow does not fall in April, June through September and November.Daylight
The average length of the day in April is 13h and 19min.On the first day of April in Sayville, sunrise is at 6:34 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 7:47 pm EDT.
Sunshine
In April, the average sunshine is 8.6h.UV index
In Sayville, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In April, an average UV index of 3 transforms into the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Sayville in April?
What is the average humidity in April in Sayville?
How much does it rain in Sayville in April?
When it does not snow in Sayville?
Does it snow in Sayville in April?
What is the average length of the day in April in Sayville?
When is the sunrise / sunset in April in Sayville?
How long on average sun shines in April in Sayville?
What is the UV index intensity in April in Sayville?
Average temperature in April
Sayville, NY
- Average high temperature in April: 52.3°F
The warmest month (with the highest average high temperature) is August (78.1°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 (71.8°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in April
Sayville, 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
Sayville, NY
- Average wind speed in April: 11.9mph
The windiest month (with the highest average wind speed) is January (13.8mph).
The calmest months (with the lowest average wind speed) are July and August (9mph).
Average humidity in April
Sayville, NY
- Average humidity in April: 74%
The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).
Average rainfall in April
Sayville, NY
- Average rainfall in April: 2.95"
The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in April
Sayville, NY
- Average rainfall days in April: 14.1 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in April
Sayville, NY
- Average snowfall in April: 0"
The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, June, July, August, September and November (0").
Average snowfall days in April
Sayville, NY
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Sayville, 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
Sayville, NY
- Average sunshine days in April: 14.5 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in April
Sayville, 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
Sayville, 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
Sayville, 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).
Sayville, New York, USA
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