May weather forecastPoolesville, MD
May
Weather in May
May, the last month of the spring in Poolesville, is a warm month, with an average temperature varying between 54.9°F (12.7°C) and 73.9°F (23.3°C).Temperature
May's onset is marked by a temperature increase, moving from a refreshing 64°F (17.8°C) in April to a moderately hot 73.9°F (23.3°C). An average nighttime temperature of 54.9°F (12.7°C) is witnessed throughout May.Humidity
In May, the average relative humidity is 77%.Rainfall
In Poolesville, in May, it is raining for 13.8 days, with typically 1.26" (32mm) of accumulated precipitation. In Poolesville, during the entire year, the rain falls for 115.4 days and collects up to 10.59" (269mm) of precipitation.Snowfall
In Poolesville, snow does not fall in May through October.Daylight
In Poolesville, the average length of the day in May is 14h and 20min.On the first day of May, sunrise is at 6:10 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:29 pm EDT.
Sunshine
The average sunshine in May 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 of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In May, a regular UV index of 6 translates into these guidelines:
Deter overexposure. Protecting against the sun's effects is essential. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Poolesville, MD
- Average high temperature in May: 73.9°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in May: 54.9°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in May
Poolesville, 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
Poolesville, MD
- Average wind speed in May: 6.1mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in May
Poolesville, MD
- Average humidity in May: 77%
The months with the highest relative humidity are October and December (78%).
The month with the lowest relative humidity is July (72%).
Average rainfall in May
Poolesville, MD
- Average rainfall in May: 1.26"
The wettest month (with the highest rainfall) is August (1.5").
The driest month (with the least rainfall) is September (0.51").
Average rainfall days in May
Poolesville, MD
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in May
Poolesville, MD
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Poolesville, MD
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (4.1 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
Poolesville, 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days in May
Poolesville, MD
- Average sunshine days in May: 14.6 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is May (14.6 days).
Average UV index in May
Poolesville, 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
Poolesville, 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
Poolesville, 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).
