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
The shift from April to May is marked by an increase in the average high-temperature, moving from a refreshing 63.1°F (17.3°C) to an agreeable 73°F (22.8°C). Washington in May experiences a low-temperature average of 52.2°F (11.2°C).Humidity
In Washington, the average relative humidity in May is 77%.Rainfall
The month with the most rainfall in Washington, Virginia, is May, when the rain falls for 17.3 days and typically aggregates up to 2.64" (67mm) of precipitation.Snowfall
Months with snowfall in Washington, Virginia, are January through May, October through December. May is the last month it regularly snows in Washington. During 0.2 snowfall days, in May, Washington aggregates 0.04" (1mm) of snow. In Washington, during the entire year, snow falls for 17.4 days and aggregates up to 9.72" (247mm) of snow.Daylight
In May, the average length of the day in Washington is 14h and 18min.On the first day of the month, sunrise is at 6:14 am and sunset at 8:05 pm. On the last day of May, sunrise is at 5:49 am and sunset at 8:31 pm EDT.
Sunshine
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 estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, a daily maximum UV index of 6 leads to the following instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What are May temperatures in Washington?
What is the average humidity in May in Washington?
What is the rainiest month in Washington?
How many days does it rain in May in Washington?
What is the last month it snows in Washington?
What is the average length of the day in May in Washington?
When is the sunrise / sunset in May in Washington?
How long on average sun shines in May in Washington?
What are the months with the highest UV index in Washington?
What is the UV index intensity in May in Washington?
Average temperature in May
Washington, VA
- Average high temperature in May: 73°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in May: 52.2°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in May
Washington, 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
Washington, VA
- Average wind speed in May: 5.5mph
The windiest months (with the highest average wind speed) are February and March (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in May
Washington, VA
- Average humidity in May: 77%
The month with the highest relative humidity is October (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in May
Washington, VA
- Average rainfall in May: 2.64"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in May
Washington, VA
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in May
Washington, VA
- Average snowfall in May: 0.04"
The month with the highest snowfall is March (2.56").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Washington, VA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Washington, 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 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in May
Washington, VA
- Average sunshine days in May: 11.7 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is August (11.4 days).
Average UV index in May
Washington, 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, February, November and December (UV index 2).
Average cloud cover in May
Washington, 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 31).
Average visibility in May
Washington, VA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, April, June, July, August and November (6mi).
The months with the lowest visibility are March, May, September, October and December (5mi).
Washington, Virginia, USA
Weather forecast for your location
2. Allow the app to use your location
