May weather forecastWesthampton, NY
May
Weather in May
May, the last month of the spring in Westhampton, is a mild month, with an average temperature varying between 53.6°F (12°C) and 59.4°F (15.2°C).Temperature
May's arrival signals a subtle increase in average high-temperatures, moving from April's fresh 50.5°F (10.3°C) to a refreshing 59.4°F (15.2°C). In Westhampton, the average low-temperature during May nights tends to settle at a cool 53.6°F (12°C), indicating a slight drop from the daytime peak.Humidity
The most humid month is May, with an average relative humidity of 81%.Rainfall
In Westhampton, during May, the rain falls for 15.5 days and regularly aggregates up to 2.64" (67mm) of precipitation. Throughout the year, in Westhampton, there are 148 rainfall days, and 29.76" (756mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, May and December. May is the first month it typically snows. Throughout May, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow. Throughout the year, in Westhampton, there are 12.9 snowfall days, and 4.45" (113mm) of snow is accumulated.Daylight
In Westhampton, the average length of the day in May is 14h and 29min.On the first day of the month, sunrise is at 5:47 am and sunset at 7:47 pm. On the last day of May, in Westhampton, sunrise is at 5:21 am and sunset at 8:15 pm EDT.
Sunshine
The average sunshine in May is 8.9h.UV index
In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 5 during May leads to these instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Stay sun-safe with clothing that is both closely woven and worn loosely. 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
Average temperature in May
Westhampton, NY
- Average high temperature in May: 59.4°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in May: 53.6°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 (31.1°F).
Average pressure in May
Westhampton, 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
Westhampton, NY
- Average wind speed in May: 11.6mph
The windiest month (with the highest average wind speed) is January (15.4mph).
The calmest month (with the lowest average wind speed) is July (10.2mph).
Average humidity in May
Westhampton, NY
- Average humidity in May: 81%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (72%).
Average rainfall in May
Westhampton, NY
- Average rainfall in May: 2.64"
The wettest month (with the highest rainfall) is October (3.07").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in May
Westhampton, NY
- Average rainfall days in May: 15.5 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in May
Westhampton, NY
- Average snowfall in May: 0.16"
The month with the highest snowfall is March (1.54").
The months with the least snowfall are April, June, July, August, September, October and November (0").
Average snowfall days in May
Westhampton, NY
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (3.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Westhampton, 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 54min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in May
Westhampton, NY
- Average sunshine days in May: 14.4 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is July (12.6 days).
Average UV index in May
Westhampton, 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 and December (UV index 2).
Average cloud cover in May
Westhampton, NY
- Average cloud cover in May: 41
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in May
Westhampton, 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).





