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 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
An escalation in the average high-temperature is seen with the onset of May, moving from a refreshing 61.7°F (16.5°C) in April to an agreeable 71.8°F (22.1°C). Monroeville experiences an average nighttime temperature of 55.2°F (12.9°C) in the month of May.Humidity
The average relative humidity in May is 77%.Rainfall
In May, the rain falls for 16.5 days. Throughout May, 2.52" (64mm) of precipitation is accumulated. In Monroeville, during the entire year, the rain falls for 154.9 days and collects up to 30.47" (774mm) 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, Monroeville aggregates 0.16" (4mm) of snow. In Monroeville, during the entire year, snow falls for 17.8 days and aggregates up to 10.28" (261mm) of snow.Daylight
In May, the average length of the day is 14h and 23min.On the first day of May, sunrise is at 6:00 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:21 pm EDT.
Sunshine
In May, the average sunshine is 8.8h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 6 during May translates into the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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?
How much does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What is the month with the highest UV index?
How high is the UV index in May?
Average temperature in May
Monroeville, NJ
- Average high temperature in May: 71.8°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 (38.1°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 (26.8°F).
Average pressure in May
Monroeville, 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
Monroeville, NJ
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is April (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in May
Monroeville, 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 (71%).
Average rainfall in May
Monroeville, NJ
- Average rainfall in May: 2.52"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in May
Monroeville, NJ
- Average rainfall days in May: 16.5 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in May
Monroeville, NJ
- Average snowfall in May: 0.16"
The month with the highest snowfall is March (3.54").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Monroeville, NJ
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (5.5 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
Monroeville, 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 5min
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
Monroeville, 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 July (11.8 days).
Average UV index in May
Monroeville, 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
Monroeville, NJ
- Average cloud cover in May: 45
The months with the most cloud cover are February and March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in May
Monroeville, 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).
Monroeville, New Jersey, USA
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