May weather forecastManhattan, PA
May
Weather in May
May, the last month of the spring in Manhattan, is a comfortable month, with an average temperature fluctuating between 66.7°F (19.3°C) and 45.9°F (7.7°C).Temperature
The start of May brings a rise in the average high-temperature, moving from a fresh 53.6°F (12°C) in April to a comfortable 66.7°F (19.3°C). The average temperature drops to a frosty 45.9°F (7.7°C) during the night in the month of May.Humidity
The average relative humidity in May is 79%.Rainfall
In Manhattan, in May, it is raining for 15.3 days, with typically 1.61" (41mm) of accumulated precipitation. In Manhattan, during the entire year, the rain falls for 125.8 days and collects up to 15.71" (399mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.5 snowfall days, in May, Manhattan aggregates 0.28" (7mm) of snow. Throughout the year, there are 43.8 snowfall days, and 13.39" (340mm) of snow is accumulated.Daylight
In Manhattan, the average length of the day in May is 14h and 34min.On the first day of the month, sunrise is at 6:05 am and sunset at 8:08 pm. On the last day of May, sunrise is at 5:37 am and sunset at 8:38 pm EDT.
Sunshine
In May, the average sunshine is 8.2h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 5 suggests this advice:
Take necessary precautions - Suggestions to elude sunburn are provided. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Manhattan, PA
- Average high temperature in May: 66.7°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in May: 45.9°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in May
Manhattan, PA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Manhattan, PA
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in May
Manhattan, PA
- Average humidity in May: 79%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall in May
Manhattan, PA
- Average rainfall in May: 1.61"
The wettest month (with the highest rainfall) is April (1.69").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in May
Manhattan, PA
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in May
Manhattan, PA
- Average snowfall in May: 0.28"
The month with the highest snowfall is February (3.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Manhattan, PA
- Average snowfall days in May: 0.5 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Manhattan, PA
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 12min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 6min).
Average sunshine days in May
Manhattan, PA
- Average sunshine days in May: 12.5 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (12.5 days).
Average UV index in May
Manhattan, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Manhattan, PA
- Average cloud cover in May: 50
The months with the most cloud cover are January, February and December (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in May
Manhattan, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The month with the lowest visibility is September (4mi).





