April weather forecastMount Sinai, NY
April
Weather in April
April is a cool spring month in Mount Sinai, New York, with an average temperature varying between 52.9°F (11.6°C) and 44.6°F (7°C).Temperature
The shift into April is characterized by a rise in the average high-temperature, transitioning from March's frosty 43.9°F (6.6°C) to a cool 52.9°F (11.6°C). In Mount Sinai, the average low-temperature during April nights tends to settle at a chilly 44.6°F (7°C), indicating a slight drop from the daytime peak.Humidity
In April, the average relative humidity is 73%.Rainfall
In Mount Sinai, in April, it is raining for 13.5 days, with typically 2.83" (72mm) of accumulated precipitation. Throughout the year, there are 146.8 rainfall days, and 33.78" (858mm) of precipitation is accumulated.Snowfall
In Mount Sinai, snow does not fall in April through September.Ocean temperature
In Mount Sinai, the average seawater temperature in April is 45.3°F (7.4°C).Note: Caution: 45.3°F (7.4°C) temperatures below 50°F (10°C) during swimming can result in intense cold shock and quickened breathing.
Daylight
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, sunrise is at 5:50 am and sunset at 7:48 pm EDT.
Sunshine
In April, the average sunshine in Mount Sinai is 8.4h.UV index
In April, the average daily maximum UV index in Mount Sinai, New York, is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 3 in April converts into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Boost your sun resistance with garments that are densely woven yet spacious. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Mount Sinai, NY
- Average high temperature in April: 52.9°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in April: 44.6°F
The months with the highest average low temperature are July and August (71.1°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in April
Mount Sinai, 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
Mount Sinai, NY
- Average wind speed in April: 11.2mph
The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in April
Mount Sinai, 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
Mount Sinai, NY
- Average rainfall in April: 2.83"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in April
Mount Sinai, NY
- Average rainfall days in April: 13.5 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in April
Mount Sinai, NY
- Average snowfall in April: 0"
The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in April
Mount Sinai, NY
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in April
Mount Sinai, NY
- Average sea temperature in April: 45.4°F
The best month for swimming (with the highest average sea temperature) is August (74°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).
Average daylight in April /
Average sunshine in April
Mount Sinai, NY
- Average daylight in April: 13h and 18min
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 24min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in April
Mount Sinai, NY
- Average sunshine days in April: 15.2 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (13 days).
Average UV index in April
Mount Sinai, 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
Mount Sinai, NY
- Average cloud cover in April: 44
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in April
Mount Sinai, 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).





