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
An escalation in the average high-temperature is seen with the onset of May, moving from a refreshing 62.2°F (16.8°C) in April to an agreeable 71.8°F (22.1°C). Marriottsville's nights in May cool down to an average low-temperature of 54.1°F (12.3°C).Humidity
May is the most humid month, with an average relative humidity of 79%.Rainfall
In Marriottsville, Maryland, during May, the rain falls for 17.7 days and regularly aggregates up to 3.23" (82mm) of precipitation. In Marriottsville, during the entire year, the rain falls for 159 days and collects up to 31.61" (803mm) of precipitation.Snowfall
Months with snowfall in Marriottsville are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Marriottsville aggregates 0.16" (4mm) of snow. Throughout the year, in Marriottsville, there are 18.7 snowfall days, and 9.96" (253mm) of snow is accumulated.Daylight
In Marriottsville, the average length of the day in May is 14h and 21min.On the first day of May in Marriottsville, sunrise is at 6:07 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:28 pm EDT.
Sunshine
In May, the average sunshine is 8.5h.UV index
The months with the highest UV index in Marriottsville are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The UV index of 6 during May translates into the following guidance:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What is the average May temperature in Marriottsville?
What is the most humid month in Marriottsville?
What is the average humidity in May in Marriottsville?
How much does it rain in Marriottsville in May?
What is the last month it snows in Marriottsville?
How many hours of daylight does Marriottsville have in May?
When is the sunrise / sunset in May in Marriottsville?
How many hours of sunshine does Marriottsville have in May?
What are the months with the highest UV index in Marriottsville?
How high is the UV index in May in Marriottsville?
Average temperature in May
Marriottsville, MD
- Average high temperature in May: 71.8°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in May: 54.1°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°F).
Average pressure in May
Marriottsville, 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
Marriottsville, MD
- Average wind speed in May: 6.8mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in May
Marriottsville, MD
- Average humidity in May: 79%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in May
Marriottsville, MD
- Average rainfall in May: 3.23"
The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is February (1.97").
Average rainfall days in May
Marriottsville, 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 (8.6 days).
Average snowfall in May
Marriottsville, MD
- Average snowfall in May: 0.16"
The month with the highest snowfall is March (2.8").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Marriottsville, MD
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (5.6 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
Marriottsville, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).
Average sunshine days in May
Marriottsville, MD
- Average sunshine days in May: 11.2 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in May
Marriottsville, 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
Marriottsville, MD
- Average cloud cover in May: 46
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Marriottsville, 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).
Marriottsville, Maryland, USA
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