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
With the arrival of May, the average high-temperature transitions from a comfortable 64.4°F (18°C) in April to a moderately hot 73.6°F (23.1°C). Upper Marlboro experiences a nighttime temperature average of 57°F (13.9°C) during May.Humidity
The most humid month in Upper Marlboro, Maryland, is May, with an average relative humidity of 77%.Rainfall
In May, the rain falls for 17.7 days. Throughout May, 3.03" (77mm) of precipitation is accumulated. Throughout the year, there are 164.8 rainfall days, and 32.87" (835mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in May is 14h and 19min.On the first day of the month, sunrise is at 6:08 am and sunset at 7:59 pm. On the last day of May, in Upper Marlboro, Maryland, sunrise is at 5:43 am and sunset at 8:25 pm EDT.
Sunshine
In Upper Marlboro, Maryland, the average sunshine in May is 9.1h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Upper Marlboro. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 6 in May translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What is the average May temperature in Upper Marlboro?
What is the most humid month in Upper Marlboro?
What is the average humidity in May in Upper Marlboro?
How much does it rain in Upper Marlboro in May?
When it does not snow in Upper Marlboro?
Does it snow in Upper Marlboro in May?
What is the average length of the day in May in Upper Marlboro?
When are sunrise and sunset in May in Upper Marlboro?
How many hours of sunshine does Upper Marlboro have in May?
What is the month with the highest UV index in Upper Marlboro?
What is the UV index reading in May in Upper Marlboro?
Average temperature in May
Upper Marlboro, MD
- Average high temperature in May: 73.6°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 (40.1°F).
- Average low temperature in May: 57°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in May
Upper Marlboro, 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 (29.94"Hg).
Average wind speed in May
Upper Marlboro, MD
- Average wind speed in May: 6.8mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).
Average humidity in May
Upper Marlboro, MD
- Average humidity in May: 77%
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are January, March and April (72%).
Average rainfall in May
Upper Marlboro, MD
- Average rainfall in May: 3.03"
The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in May
Upper Marlboro, MD
- Average rainfall days in May: 17.7 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in May
Upper Marlboro, MD
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.76").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Upper Marlboro, MD
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (4.6 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
Upper Marlboro, MD
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 9h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in May
Upper Marlboro, MD
- Average sunshine days in May: 11.7 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in May
Upper Marlboro, 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, November and December (UV index 2).
Average cloud cover in May
Upper Marlboro, MD
- Average cloud cover in May: 42
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in May
Upper Marlboro, 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).
Upper Marlboro, Maryland, USA
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