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
May introduces a minor temperature shift, with average high-temperatures adjusting from April's comfortable 63.3°F (17.4°C) to a pleasant 72°F (22.2°C). Mount Heron records an average nighttime low-temperature of 51.3°F (10.7°C) throughout May.Humidity
In Mount Heron, Virginia, the average relative humidity in May is 79%.Rainfall
In Mount Heron, in May, during 18.5 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. In Mount Heron, during the entire year, the rain falls for 155.9 days and collects up to 23.31" (592mm) of precipitation.Snowfall
Months with snowfall in Mount Heron are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Mount Heron aggregates 0.16" (4mm) of snow. Throughout the year, in Mount Heron, there are 37.2 snowfall days, and 18.03" (458mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 11min.On the first day of the month, sunrise is at 6:32 am and sunset at 8:17 pm. On the last day of May, sunrise is at 6:09 am and sunset at 8:42 pm EDT.
Sunshine
In Mount Heron, the average sunshine in May is 9.1h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How much does it rain in Mount Heron in May?
What is the last month it snows in Mount Heron?
How many hours of daylight does Mount Heron have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Mount Heron have in May?
When is the highest UV index?
What is the UV index reading in May?
Average temperature in May
Mount Heron, VA
- Average high temperature in May: 72°F
The warmest month (with the highest average high temperature) is July (82.6°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 (59.7°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in May
Mount Heron, VA
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in May
Mount Heron, VA
- Average wind speed in May: 6mph
The windiest months (with the highest average wind speed) are January, February and April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in May
Mount Heron, VA
- Average humidity in May: 79%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is November (76%).
Average rainfall in May
Mount Heron, VA
- Average rainfall in May: 2.48"
The wettest month (with the highest rainfall) is February (2.72").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in May
Mount Heron, VA
- Average rainfall days in May: 18.5 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in May
Mount Heron, VA
- Average snowfall in May: 0.16"
The month with the highest snowfall is December (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Mount Heron, VA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Mount Heron, VA
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 9h and 1min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Mount Heron, VA
- Average sunshine days in May: 10.3 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is May (10.3 days).
Average UV index in May
Mount Heron, VA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Mount Heron, VA
- Average cloud cover in May: 44
The months with the most cloud cover are January and February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in May
Mount Heron, VA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Mount Heron, Virginia, USA
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