May weather forecastOverlea, MD
May
Weather in May
May, the last month of the spring in Overlea, is a pleasant month, with an average temperature ranging between max 71.6°F (22°C) and min 55.8°F (13.2°C).Temperature
With the transition into May, Overlea experiences an increase in average high-temperatures, moving up from an enjoyable 62.2°F (16.8°C) in April to a pleasant 71.6°F (22°C). During May, Overlea sees a mean low-temperature of 55.8°F (13.2°C).Humidity
May is the most humid month, with an average relative humidity of 78%.Rainfall
In Overlea, in May, during 14.8 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. Throughout the year, there are 127.2 rainfall days, and 12.32" (313mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
The average length of the day in May is 14h and 21min.On the first day of May in Overlea, Maryland, sunrise is at 6:06 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:26 pm EDT.
Sunshine
The average sunshine in May is 8.9h.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 threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 6 in May translates into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Overlea, MD
- Average high temperature in May: 71.6°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (38.5°F).
- Average low temperature in May: 55.8°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in May
Overlea, MD
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Overlea, MD
- Average wind speed in May: 7.3mph
The windiest months (with the highest average wind speed) are January, February and March (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in May
Overlea, MD
- Average humidity in May: 78%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are March, April and November (73%).
Average rainfall in May
Overlea, MD
- Average rainfall in May: 1.22"
The wettest month (with the highest rainfall) is August (2.01").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in May
Overlea, MD
- Average rainfall days in May: 14.8 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is November (6.3 days).
Average snowfall in May
Overlea, MD
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Overlea, MD
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (3.1 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
Overlea, MD
- Average daylight in May: 14h and 24min
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 54min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in May
Overlea, MD
- Average sunshine days in May: 13.4 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in May
Overlea, MD
- 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
Overlea, MD
- Average cloud cover in May: 43
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in May
Overlea, MD
- 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).





