May weather forecastMount Joy, NJ
May
Weather in May
May, the last month of the spring in Mount Joy, is an agreeable month, with an average temperature fluctuating between 69.6°F (20.9°C) and 50.5°F (10.3°C).Temperature
The onset of May brings a temperature shift, with the average high-temperature moving from a moderate 58.6°F (14.8°C) in April to a pleasant 69.6°F (20.9°C). Mount Joy observes an average low-temperature of 50.5°F (10.3°C) during May.Humidity
The average relative humidity in May is 79%.Rainfall
In Mount Joy, New Jersey, during May, the rain falls for 13.9 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, there are 124.4 rainfall days, and 13.39" (340mm) of precipitation is accumulated.Snowfall
In Mount Joy, snow does not fall in May through October.Daylight
In Mount Joy, the average length of the day in May is 14h and 28min.On the first day of May in Mount Joy, New Jersey, sunrise is at 5:58 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:24 pm EDT.
Sunshine
In Mount Joy, the average sunshine in May is 8.4h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Mount Joy, NJ
- Average high temperature in May: 69.6°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in May: 50.5°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in May
Mount Joy, 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
Mount Joy, NJ
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in May
Mount Joy, NJ
- Average humidity in May: 79%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in May
Mount Joy, NJ
- Average rainfall in May: 1.38"
The wettest month (with the highest rainfall) is July (1.65").
The driest month (with the least rainfall) is September (0.71").
Average rainfall days in May
Mount Joy, NJ
- Average rainfall days in May: 13.9 days
The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in May
Mount Joy, NJ
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Mount Joy, NJ
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Mount Joy, 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 24min
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 36min).
Average sunshine days in May
Mount Joy, NJ
- Average sunshine days in May: 14 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (14 days).
Average UV index in May
Mount Joy, NJ
- Average UV index in May: 5
The months with the highest UV index are June and July (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
Mount Joy, NJ
- Average cloud cover in May: 48
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in May
Mount Joy, NJ
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August, September and October (5mi).
