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's onset witnesses a shift in the average high-temperature, moving from a comfortable 65.1°F (18.4°C) in April to a warm 74.7°F (23.7°C). During May, Mount Vernon experiences a consistent low-temperature average of 56.8°F (13.8°C).Humidity
May, October and December, with an average relative humidity of 76%, are the most humid months.Rainfall
In May, in Mount Vernon, the rain falls for 17.7 days. Throughout May, 2.95" (75mm) of precipitation is accumulated. Throughout the year, in Mount Vernon, Virginia, there are 158.2 rainfall days, and 30.67" (779mm) of precipitation is accumulated.Snowfall
In Mount Vernon, snow does not fall in May through October.Daylight
In May, the average length of the day is 14h and 18min.On the first day of May in Mount Vernon, sunrise is at 6:09 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:27 pm EDT.
Sunshine
In Mount Vernon, the average sunshine in May is 9h.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 health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 6 in May interprets into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. 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. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What is the usual temperature for Mount Vernon in May?
What are the most humid months in Mount Vernon?
What is the average humidity in May in Mount Vernon?
How many days does it rain in May in Mount Vernon?
When it does not snow in Mount Vernon?
Does it snow in Mount Vernon in May?
What is the average length of the day in May in Mount Vernon?
What time are sunrise and sunset in May in Mount Vernon?
How long on average sun shines in May in Mount Vernon?
When is the highest UV index in Mount Vernon?
How high is the UV index in May in Mount Vernon?
Average temperature in May
Mount Vernon, VA
- Average high temperature in May: 74.7°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in May: 56.8°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in May
Mount Vernon, VA
- 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
Mount Vernon, VA
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Mount Vernon, VA
- Average humidity in May: 76%
The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).
Average rainfall in May
Mount Vernon, VA
- Average rainfall in May: 2.95"
The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in May
Mount Vernon, VA
- 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 November (8.5 days).
Average snowfall in May
Mount Vernon, VA
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Mount Vernon, VA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (4.5 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
Mount Vernon, VA
- 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 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in May
Mount Vernon, VA
- Average sunshine days in May: 11.5 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in May
Mount Vernon, VA
- 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 and December (UV index 2).
Average cloud cover in May
Mount Vernon, VA
- Average cloud cover in May: 43
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
Mount Vernon, VA
- 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).
Mount Vernon, Virginia, USA
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