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
Fairfax Station's transition into May is marked by a rise in the average high-temperature, advancing from a refreshing 65.3°F (18.5°C) in April to a moderately hot 74.8°F (23.8°C). During May, Fairfax Station witnesses a consistent average low-temperature of 56.1°F (13.4°C).Humidity
The average relative humidity in May in Fairfax Station, Virginia, is 76%.Rainfall
In Fairfax Station, during May, the rain falls for 18.4 days and regularly aggregates up to 3.31" (84mm) of precipitation. Throughout the year, in Fairfax Station, there are 166.5 rainfall days, and 32.76" (832mm) of precipitation is accumulated.Snowfall
In Fairfax Station, snow does not fall in May through October.Daylight
The average length of the day in May is 14h and 19min.On the first day of May, sunrise is at 6:10 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:28 pm EDT.
Sunshine
In Fairfax Station, Virginia, the average sunshine in May is 9.1h.UV index
The months with the highest UV index in Fairfax Station, Virginia, 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 radiation for the average person.Note: The maximum UV index, 6 during May, leads to the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
What is the temperature in May in Fairfax Station?
What is the average humidity in May in Fairfax Station?
How much does it rain in Fairfax Station in May?
When it does not snow in Fairfax Station?
Does it snow in Fairfax Station in May?
How many hours of daylight does Fairfax Station have in May?
When is the sunrise / sunset in May in Fairfax Station?
How many hours of sunshine does Fairfax Station have in May?
What are the months with the highest UV index in Fairfax Station?
What is the UV index reading in May in Fairfax Station?
Average temperature in May
Fairfax Station, VA
- Average high temperature in May: 74.8°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 (40.5°F).
- Average low temperature in May: 56.1°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in May
Fairfax Station, 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
Fairfax Station, VA
- Average wind speed in May: 6.1mph
The windiest month (with the highest average wind speed) is March (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in May
Fairfax Station, VA
- Average humidity in May: 76%
The months with the highest relative humidity are October and December (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in May
Fairfax Station, VA
- Average rainfall in May: 3.31"
The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is January (2.09").
Average rainfall days in May
Fairfax Station, VA
- Average rainfall days in May: 18.4 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in May
Fairfax Station, VA
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Fairfax Station, VA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (5.2 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
Fairfax Station, 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 1min
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 12min).
Average sunshine days in May
Fairfax Station, VA
- Average sunshine days in May: 10.5 days
The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are May and July (10.5 days).
Average UV index in May
Fairfax Station, 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
Fairfax Station, VA
- Average cloud cover in May: 42
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
Fairfax Station, 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).
Fairfax Station, Virginia, USA
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