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
May indicates a change in the average high-temperature, moving up from an enjoyable 63.9°F (17.7°C) in April to a warm 73.6°F (23.1°C). Derwood experiences an average low-temperature reading of 55°F (12.8°C) throughout May.Humidity
May, October and December, with an average relative humidity of 77%, are the most humid months in Derwood, Maryland.Rainfall
In Derwood, Maryland, during May, the rain falls for 17.4 days and regularly aggregates up to 3.19" (81mm) of precipitation. Throughout the year, in Derwood, there are 154.8 rainfall days, and 29.09" (739mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Derwood aggregates 0.16" (4mm) of snow. In Derwood, during the entire year, snow falls for 16.7 days and aggregates up to 9.76" (248mm) of snow.Daylight
In May, the average length of the day in Derwood is 14h and 20min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:02 pm. On the last day of May, in Derwood, Maryland, sunrise is at 5:44 am and sunset at 8:28 pm EDT.
Sunshine
In May, the average sunshine in Derwood is 8.9h.UV index
The months with the highest UV index in Derwood are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 6 in May converts into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What is the temperature in May in Derwood?
What is the most humid month in Derwood?
What is the average humidity in May in Derwood?
How many days does it rain in May in Derwood?
What is the last month it snows in Derwood?
How many hours of daylight does Derwood have in May?
What time are sunrise and sunset in May in Derwood?
How long on average sun shines in May in Derwood?
What is the month with the highest UV index in Derwood?
What is the UV index reading in May in Derwood?
Average temperature in May
Derwood, MD
- Average high temperature in May: 73.6°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in May: 55°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in May
Derwood, 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
Derwood, MD
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in May
Derwood, MD
- Average humidity in May: 77%
The months with the highest relative humidity are May, October and December (77%).
The month with the lowest relative humidity is July (72%).
Average rainfall in May
Derwood, 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 (1.73").
Average rainfall days in May
Derwood, MD
- Average rainfall days in May: 17.4 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in May
Derwood, MD
- Average snowfall in May: 0.16"
The month with the highest snowfall is January (2.76").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Derwood, MD
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (5.3 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
Derwood, MD
- 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 30min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).
Average sunshine days in May
Derwood, MD
- Average sunshine days in May: 11.7 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in May
Derwood, 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
Derwood, MD
- Average cloud cover in May: 44
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in May
Derwood, 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).
Derwood, Maryland, USA
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