May weather forecastMount Sinai, NY
May
Weather in May
May, the last month of the spring in Mount Sinai, is an enjoyable month, with temperature in the range of an average high of 62.6°F (17°C) and an average low of 53.6°F (12°C).Temperature
May brings a temperature change, with average high-temperatures moving from April's cool 52.9°F (11.6°C) to a refreshing 62.6°F (17°C). Mount Sinai's nighttime temperatures in May reveal a minimal variation from the daytime highs, averaging at a cool 53.6°F (12°C).Humidity
The months with the highest humidity in Mount Sinai, New York, are May and June, with an average relative humidity of 77%.Rainfall
In Mount Sinai, New York, in May, it is raining for 15.3 days, with typically 2.76" (70mm) of accumulated precipitation. Throughout the year, in Mount Sinai, New York, there are 146.8 rainfall days, and 33.78" (858mm) of precipitation is accumulated.Snowfall
April through September are months without snowfall.Ocean temperature
In Mount Sinai, the average seawater temperature in May is 53.4°F (11.9°C).Note: In 53.4°F (11.9°C), even brief exposure to 55.4°F (13°C) feels biting, and anything less than 50°F (10°C) risks cold shock and impaired breathing, considering one's health.
Daylight
The average length of the day in May in Mount Sinai is 14h and 29min.On the first day of May, sunrise is at 5:49 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 5:22 am and sunset at 8:17 pm EDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
The average daily maximum UV index in May in Mount Sinai is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In May, a daily UV index of 5 turns into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Mount Sinai, NY
- Average high temperature in May: 62.6°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 May: 53.6°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 May
Mount Sinai, NY
- Average pressure in May: 30.01"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 May
Mount Sinai, NY
- Average wind speed in May: 9.4mph
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 May
Mount Sinai, NY
- Average humidity in May: 77%
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 May
Mount Sinai, NY
- Average rainfall in May: 2.76"
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 May
Mount Sinai, NY
- Average rainfall days in May: 15.3 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 May
Mount Sinai, NY
- Average snowfall in May: 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 May
Mount Sinai, NY
- Average snowfall days in May: 0 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 May
Mount Sinai, NY
- Average sea temperature in May: 53.4°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 May /
Average sunshine in May
Mount Sinai, NY
- Average daylight in May: 14h and 30min
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 May: 8h and 42min
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 May
Mount Sinai, NY
- Average sunshine days in May: 14.5 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 May
Mount Sinai, NY
- Average UV index in May: 5
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 May
Mount Sinai, NY
- Average cloud cover in May: 43
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 May
Mount Sinai, NY
- Average visibility in May: 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).





