May weather forecastPennington, NJ
May
Weather in May
The last month of the spring, May, is an agreeable month in Pennington, New Jersey, with an average temperature ranging between max 70.9°F (21.6°C) and min 53.2°F (11.8°C).Temperature
May's onset brings a temperature rise, moving from a moderate 60.4°F (15.8°C) in April to an agreeable 70.9°F (21.6°C). During May nights, Pennington records an average temperature of 53.2°F (11.8°C).Humidity
In Pennington, the average relative humidity in May is 77%.Rainfall
In May, the rain falls for 15.2 days. Throughout May, 1.85" (47mm) of precipitation is accumulated. Throughout the year, there are 138.1 rainfall days, and 16.5" (419mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Pennington aggregates 0.24" (6mm) of snow. In Pennington, during the entire year, snow falls for 15.6 days and aggregates up to 2.8" (71mm) of snow.Daylight
In May, the average length of the day in Pennington is 14h and 26min.On the first day of May, sunrise is at 5:57 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:22 pm EDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 6 in May translates into this advice:
Guard oneself from overexposure. Defence against sun injury is vital. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Stay alert! Snow's reflective properties 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
Pennington, NJ
- Average high temperature in May: 70.9°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in May: 53.2°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in May
Pennington, NJ
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Pennington, NJ
- Average wind speed in May: 6.8mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Pennington, NJ
- Average humidity in May: 77%
The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April and July (73%).
Average rainfall in May
Pennington, NJ
- Average rainfall in May: 1.85"
The wettest month (with the highest rainfall) is July (2.24").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in May
Pennington, NJ
- Average rainfall days in May: 15.2 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (7.2 days).
Average snowfall in May
Pennington, NJ
- Average snowfall in May: 0.24"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Pennington, NJ
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Pennington, NJ
- Average daylight in May: 14h and 24min
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 24min).
- 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 48min).
Average sunshine days in May
Pennington, NJ
- Average sunshine days in May: 12.6 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in May
Pennington, NJ
- Average UV index in May: 6
The months with the highest UV index are May, 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
Pennington, NJ
- Average cloud cover in May: 46
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Pennington, NJ
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
