May weather forecastWilliston Park, NY
May
Weather in May
The last month of the spring, May, is a refreshing month in Williston Park, New York, with an average temperature varying between 54.5°F (12.5°C) and 64°F (17.8°C).Temperature
May's onset is marked by a temperature increase, moving from a fresh 54.1°F (12.3°C) in April to a comfortable 64°F (17.8°C). May brings an average low-temperature of 54.5°F (12.5°C) to Williston Park.Humidity
May and June, with an average relative humidity of 76%, are the most humid months.Rainfall
In May, in Williston Park, the rain falls for 16.5 days. Throughout May, 3.23" (82mm) of precipitation is accumulated. Throughout the year, in Williston Park, there are 158.5 rainfall days, and 36.38" (924mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Williston Park, the average length of the day in May is 14h and 28min.On the first day of May, sunrise is at 5:51 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 8:19 pm EDT.
Sunshine
The average sunshine in May is 8.9h.UV index
In Williston Park, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 5 in May transforms into the following instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Williston Park, NY
- Average high temperature in May: 64°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in May: 54.5°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in May
Williston Park, NY
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Williston Park, NY
- Average wind speed in May: 9.1mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in May
Williston Park, NY
- Average humidity in May: 76%
The months with the highest relative humidity are May and June (76%).
The month with the lowest relative humidity is November (71%).
Average rainfall in May
Williston Park, NY
- Average rainfall in May: 3.23"
The wettest month (with the highest rainfall) is July (4.13").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in May
Williston Park, NY
- Average rainfall days in May: 16.5 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (8 days).
Average snowfall in May
Williston Park, NY
- Average snowfall in May: 0"
The month with the highest snowfall is March (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Williston Park, NY
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Williston Park, NY
- Average daylight in May: 14h and 30min
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 May: 8h and 54min
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 May
Williston Park, NY
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in May
Williston Park, 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
Williston Park, NY
- Average cloud cover in May: 42
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Williston Park, 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).
