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
Entering May, Falls Church sees a temperature rise, with the average high-temperature advancing from April's comfortable 64.9°F (18.3°C) to a warm 74.8°F (23.8°C). During May, Falls Church experiences an average low-temperature of 55.9°F (13.3°C) at night.Humidity
The average relative humidity in May is 75%.Rainfall
In Falls Church, in May, it is raining for 10.8 days, with typically 0.75" (19mm) of accumulated precipitation. Throughout the year, in Falls Church, there are 109 rainfall days, and 9.29" (236mm) of precipitation is accumulated.Snowfall
In Falls Church, snow does not fall in May through October.Daylight
In May, the average length of the day in Falls Church, Virginia, is 14h and 19min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:01 pm. On the last day of May, sunrise is at 5:45 am and sunset at 8:27 pm EDT.
Sunshine
In Falls Church, the average sunshine in May is 9h.UV index
The months with the highest UV index in Falls Church 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 rays for average individuals.Note: The daily maximum UV index of 6 in May interprets into the following advice:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What is the temperature in May in Falls Church?
What is the average humidity in May in Falls Church?
How much does it rain in Falls Church in May?
When it does not snow in Falls Church?
Does it snow in Falls Church in May?
How many hours of daylight does Falls Church have in May?
What time are sunrise and sunset in May in Falls Church?
How many hours of sunshine does Falls Church have in May?
When is the highest UV index in Falls Church?
How high is the UV index in May in Falls Church?
Average temperature in May
Falls Church, VA
- Average high temperature in May: 74.8°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in May: 55.9°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 (26.8°F).
Average pressure in May
Falls Church, 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
Falls Church, VA
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in May
Falls Church, VA
- Average humidity in May: 75%
The months with the highest relative humidity are October and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in May
Falls Church, VA
- Average rainfall in May: 0.75"
The wettest month (with the highest rainfall) is August (1.5").
The driest months (with the least rainfall) are January and September (0.51").
Average rainfall days in May
Falls Church, VA
- Average rainfall days in May: 10.8 days
The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is November (5.6 days).
Average snowfall in May
Falls Church, VA
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Falls Church, VA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.6 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
Falls Church, 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 54min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in May
Falls Church, VA
- Average sunshine days in May: 16.6 days
The month with the most sunshine days is November (23 days).
The month with the least sunshine days is July (14.3 days).
Average UV index in May
Falls Church, 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, November and December (UV index 2).
Average cloud cover in May
Falls Church, 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
Falls Church, 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).
Falls Church, Virginia, USA
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