Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average sea temperature in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May sees a rise in the average high-temperature, climbing from a comfortable 61.7°F (16.5°C) in April to an agreeable 72°F (22.2°C). Penns Grove's temperature lowers to a mean of 55.2°F (12.9°C) during the nights in May.Humidity
In May, the average relative humidity in Penns Grove is 77%.Rainfall
In Penns Grove, during May, the rain falls for 16.6 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Penns Grove, during the entire year, the rain falls for 150.6 days and collects up to 26.46" (672mm) of precipitation.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, Penns Grove aggregates 0.12" (3mm) of snow. In Penns Grove, during the entire year, snow falls for 16.2 days and aggregates up to 6.93" (176mm) of snow.Ocean temperature
In May, the average ocean temperature is 54°F (12.2°C).Note: To swim in 54°F (12.2°C) at less than 50°F (10°C), ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 55.4°F (13°C) is not welcoming.
Daylight
The average length of the day in May is 14h and 23min.On the first day of May, sunrise is at 6:01 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:23 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 of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.Note: In May, the maximum UV index of 6 suggests these recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May in Penns Grove?
How many days does it rain in May?
What is the last month it snows?
What is the water temperature in May in Penns Grove?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
When is the highest UV index?
What is the UV index intensity in May?
Average temperature in May
Penns Grove, NJ
- Average high temperature in May: 72°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in May: 55.2°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in May
Penns Grove, NJ
- Average pressure in May: 30.01"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
Penns Grove, NJ
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
Penns Grove, NJ
- Average humidity in May: 77%
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in May
Penns Grove, NJ
- Average rainfall in May: 2.36"
The wettest month (with the highest rainfall) is August (2.68").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in May
Penns Grove, NJ
- Average rainfall days in May: 16.6 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in May
Penns Grove, NJ
- Average snowfall in May: 0.12"
The month with the highest snowfall is March (2.2").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Penns Grove, NJ
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in May
Penns Grove, NJ
- Average sea temperature in May: 53.9°F
The best month for swimming (with the highest average sea temperature) is August (75.9°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).
Average daylight in May /
Average sunshine in May
Penns Grove, NJ
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 8h and 4min
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 54min).
Average sunshine days in May
Penns Grove, NJ
- Average sunshine days in May: 12.2 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in May
Penns Grove, 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, November and December (UV index 2).
Average cloud cover in May
Penns Grove, NJ
- Average cloud cover in May: 45
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in May
Penns Grove, NJ
- 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).
Penns Grove, New Jersey, USA
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