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 into May is marked by a rise in the average high-temperature, moving from April's enjoyable 62.6°F (17°C) to an agreeable 72.1°F (22.3°C). Dayton's nights in May cool down to an average low-temperature of 51.3°F (10.7°C).Humidity
May, September and October, with an average relative humidity of 78%, are the most humid months.Rainfall
May is the month with the most rainfall. Rain falls for 18.9 days and accumulates 3.46" (88mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Dayton aggregates 0.08" (2mm) of snow. Throughout the year, there are 23.3 snowfall days, and 16.89" (429mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 17min.On the first day of the month, sunrise is at 6:17 am and sunset at 8:07 pm. On the last day of May, sunrise is at 5:53 am and sunset at 8:33 pm EDT.
Sunshine
The average sunshine in May is 9h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 5 in May leads to these guidelines:
Guard yourself - Avoiding sunburn is suggested. Around midday, solar radiation is most harmful; hence, exposure should be limited. 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. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What are the most humid months?
What is the average humidity in May?
What is the wettest month in Dayton?
How much does it rain in May?
What is the last month it snows?
How many hours of daylight does Dayton have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Dayton have in May?
How high is the UV index in May?
Average temperature in May
Dayton, VA
- Average high temperature in May: 72.1°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in May: 51.3°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in May
Dayton, VA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in May
Dayton, VA
- Average wind speed in May: 5.6mph
The windiest months (with the highest average wind speed) are February and April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in May
Dayton, VA
- Average humidity in May: 78%
The months with the highest relative humidity are May, September and October (78%).
The months with the lowest relative humidity are January and July (74%).
Average rainfall in May
Dayton, VA
- Average rainfall in May: 3.46"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is November (1.77").
Average rainfall days in May
Dayton, VA
- Average rainfall days in May: 18.9 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is November (9 days).
Average snowfall in May
Dayton, VA
- Average snowfall in May: 0.08"
The month with the highest snowfall is March (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Dayton, VA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Dayton, 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 30min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in May
Dayton, VA
- Average sunshine days in May: 9.9 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in May
Dayton, VA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Dayton, VA
- Average cloud cover in May: 43
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are June and July (Cloud cover 32).
Average visibility in May
Dayton, VA
- Average visibility in May: 5mi
The months with the highest visibility are February, April, June, July and November (6mi).
The months with the lowest visibility are January, March, May, August, September, October and December (5mi).
Dayton, Virginia, USA
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