May weather forecastManassas Park, VA
May
Weather in May
May is recognizably warmer in Manassas Park, signaling the onset of summer. Longer daylight hours accompanied by slightly shorter sunshine hours produce an interesting dance of light and shadow throughout the city. May's weather invites outdoor engagement with its mild conditions. The balance in atmospheric pressure is noteworthy. As June approaches, local residents gear up for the weather to take a heated turn.Temperature
May brings a rise in Manassas Park's average high-temperature, moving from a comfortable 65.7°F (18.7°C) in April to a warm 75.4°F (24.1°C). May in Manassas Park witnesses an average low-temperature hovering around a fresh 55.2°F (12.9°C).Humidity
In Manassas Park, the average relative humidity in May is 76%.Rainfall
In Manassas Park, during May, the rain falls for 17.4 days and regularly aggregates up to 3.11" (79mm) of precipitation. In Manassas Park, during the entire year, the rain falls for 157.5 days and collects up to 30.35" (771mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Manassas Park, Virginia, the average length of the day in May is 14h and 19min.On the first day of the month, sunrise is at 6:11 am and sunset at 8:02 pm. On the last day of May, in Manassas Park, Virginia, sunrise is at 5:46 am and sunset at 8:28 pm EDT.
Sunshine
The average sunshine in May is 8.9h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Manassas Park. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, a daily UV index of 6 turns into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Manassas Park, VA
- Average high temperature in May: 75.4°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in May: 55.2°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in May
Manassas Park, 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
Manassas Park, VA
- Average wind speed in May: 5.8mph
The windiest months (with the highest average wind speed) are March and April (7mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in May
Manassas Park, VA
- Average humidity in May: 76%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (72%).
Average rainfall in May
Manassas Park, VA
- Average rainfall in May: 3.11"
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
Manassas Park, VA
- Average rainfall days in May: 17.4 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in May
Manassas Park, VA
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Manassas Park, VA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (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
Manassas Park, VA
- Average daylight in May: 14h and 18min
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: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).
Average sunshine days in May
Manassas Park, VA
- Average sunshine days in May: 11.7 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in May
Manassas Park, 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
Manassas Park, VA
- Average cloud cover in May: 44
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Manassas Park, VA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August and November (6mi).
The months with the lowest visibility are May, September, October and December (5mi).








