May weather forecastRockefellows Mills, NJ
May
Weather in May
The last month of the spring, May, is a pleasant month in Rockefellows Mills, New Jersey, with an average temperature fluctuating between 70.2°F (21.2°C) and 51.6°F (10.9°C).Temperature
The transition from April to May brings a temperature rise, with average high-temperatures increasing from a refreshing 59.7°F (15.4°C) to a pleasant 70.2°F (21.2°C). Throughout the nights in May, an average low-temperature of 51.6°F (10.9°C) is noted.Humidity
In Rockefellows Mills, the average relative humidity in May is 79%.Rainfall
In Rockefellows Mills, in May, during 13.1 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Rockefellows Mills, during the entire year, the rain falls for 112.6 days and collects up to 11.77" (299mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Rockefellows Mills aggregates 0.2" (5mm) of snow. Throughout the year, there are 16.7 snowfall days, and 3.98" (101mm) of snow is accumulated.Daylight
The average length of the day in May in Rockefellows Mills is 14h and 27min.On the first day of the month, sunrise is at 5:57 am and sunset at 7:55 pm. On the last day of May, sunrise is at 5:30 am and sunset at 8:23 pm EDT.
Sunshine
In Rockefellows Mills, the average sunshine in May is 8.3h.UV index
The months with the highest UV index in Rockefellows Mills are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 6 in May leads to these guidelines:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be alert! Nearly double the UV rays 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
Rockefellows Mills, NJ
- Average high temperature in May: 70.2°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in May: 51.6°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in May
Rockefellows Mills, 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
Rockefellows Mills, NJ
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Rockefellows Mills, NJ
- Average humidity in May: 79%
The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in May
Rockefellows Mills, NJ
- Average rainfall in May: 1.22"
The wettest month (with the highest rainfall) is July (1.46").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days in May
Rockefellows Mills, NJ
- Average rainfall days in May: 13.1 days
The month with the highest number of rainy days is May (13.1 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in May
Rockefellows Mills, NJ
- Average snowfall in May: 0.2"
The month with the highest snowfall is March (1.1").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Rockefellows Mills, NJ
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (5.2 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
Rockefellows Mills, NJ
- 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 18min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
Rockefellows Mills, NJ
- Average sunshine days in May: 15.8 days
The month with the most sunshine days is November (22.2 days).
The month with the least sunshine days is June (15.6 days).
Average UV index in May
Rockefellows Mills, 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
Rockefellows Mills, NJ
- Average cloud cover in May: 48
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in May
Rockefellows Mills, NJ
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are May, September and October (5mi).





