May weather forecastAntietam Overlook, MD
May
Weather in May
May, the last month of the spring in Antietam Overlook, is an agreeable month, with temperature in the range of an average high of 72.3°F (22.4°C) and an average low of 52.3°F (11.3°C).Temperature
The start of May signals an increase in the average high-temperature, moving from a refreshing 62.6°F (17°C) in April to a pleasant 72.3°F (22.4°C). Throughout May, Antietam Overlook witnesses a consistent average low-temperature of 52.3°F (11.3°C).Humidity
May, October and December, with an average relative humidity of 79%, are the most humid months.Rainfall
In Antietam Overlook, during May, the rain falls for 18.3 days and regularly aggregates up to 3.23" (82mm) of precipitation. In Antietam Overlook, during the entire year, the rain falls for 162.4 days and collects up to 30.16" (766mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Antietam Overlook, the average length of the day in May is 14h and 22min.On the first day of the month, sunrise is at 6:10 am and sunset at 8:04 pm. On the last day of May, sunrise is at 5:45 am and sunset at 8:31 pm EDT.
Sunshine
In Antietam Overlook, the average sunshine in May is 8.4h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 6 in May leads to these recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Antietam Overlook, MD
- Average high temperature in May: 72.3°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in May
Antietam Overlook, MD
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Antietam Overlook, MD
- Average wind speed in May: 5.9mph
The windiest months (with the highest average wind speed) are January, February and March (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in May
Antietam Overlook, MD
- Average humidity in May: 79%
The months with the highest relative humidity are May, October and December (79%).
The month with the lowest relative humidity is July (74%).
Average rainfall in May
Antietam Overlook, MD
- Average rainfall in May: 3.23"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in May
Antietam Overlook, MD
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in May
Antietam Overlook, MD
- Average snowfall in May: 0"
The month with the highest snowfall is January (4.72").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Antietam Overlook, MD
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Antietam Overlook, 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 24min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in May
Antietam Overlook, MD
- Average sunshine days in May: 11.4 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is April (11 days).
Average UV index in May
Antietam Overlook, 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
Antietam Overlook, MD
- Average cloud cover in May: 47
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Antietam Overlook, MD
- Average visibility in May: 5mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).





