May weather forecastBrook Hollow, MD
May
Weather in May
May, the last month of the spring in Brook Hollow, is a pleasant month, with an average temperature fluctuating between 72.7°F (22.6°C) and 54.5°F (12.5°C).Temperature
The start of May brings a rise in the average high-temperature, moving from an enjoyable 63°F (17.2°C) in April to an agreeable 72.7°F (22.6°C). In Brook Hollow, May nights cool down to an average of 54.5°F (12.5°C).Humidity
The months with the highest humidity are May and October, with an average relative humidity of 79%.Rainfall
In Brook Hollow, in May, it is raining for 17.7 days, with typically 3.19" (81mm) of accumulated precipitation. In Brook Hollow, during the entire year, the rain falls for 158.7 days and collects up to 30.91" (785mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Brook Hollow aggregates 0.2" (5mm) of snow. In Brook Hollow, during the entire year, snow falls for 21.3 days and aggregates up to 13.31" (338mm) of snow.Daylight
The average length of the day in May is 14h and 20min.On the first day of the month, sunrise is at 6:08 am and sunset at 8:02 pm. On the last day of May, in Brook Hollow, sunrise is at 5:44 am and sunset at 8:28 pm EDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In May, a daily UV index of 6 turns into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Brook Hollow, MD
- Average high temperature in May: 72.7°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 (37.8°F).
- Average low temperature in May: 54.5°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in May
Brook Hollow, 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
Brook Hollow, MD
- Average wind speed in May: 6.4mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
Brook Hollow, MD
- Average humidity in May: 79%
The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in May
Brook Hollow, MD
- Average rainfall in May: 3.19"
The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in May
Brook Hollow, MD
- Average rainfall days in May: 17.7 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in May
Brook Hollow, MD
- Average snowfall in May: 0.2"
The month with the highest snowfall is March (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Brook Hollow, MD
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Brook Hollow, MD
- Average daylight in May: 14h and 18min
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 30min).
- Average sunshine in May: 8h and 42min
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
Brook Hollow, MD
- Average sunshine days in May: 10.8 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in May
Brook Hollow, 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
Brook Hollow, MD
- Average cloud cover in May: 44
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in May
Brook Hollow, MD
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
