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
A shift in the average high-temperature is noticeable in May in Grafton, changing from an enjoyable 60.8°F (16°C) in April to a pleasant 71.6°F (22°C). The average low-temperature in Grafton during May nights is a fresh 51.1°F (10.6°C).Humidity
In Grafton, the average relative humidity in May is 79%.Rainfall
The month with the most rainfall in Grafton is May, when the rain falls for 20.8 days and typically aggregates up to 4.06" (103mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Grafton. During 0.3 snowfall days, in May, Grafton aggregates 0.67" (17mm) of snow. In Grafton, during the entire year, snow falls for 58.4 days and aggregates up to 31.26" (794mm) of snow.Daylight
The average length of the day in May is 14h and 21min.On the first day of May in Grafton, West Virginia, sunrise is at 6:20 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:40 pm EDT.
Sunshine
In May, the average sunshine in Grafton is 8.7h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 5 in May translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Employ a wide-brim hat for potent defense against up to 50% of UV rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the average May temperature in Grafton?
What is the average humidity in May in Grafton?
What is the wettest month in Grafton?
How much does it rain in Grafton in May?
What is the last month it snows in Grafton?
How many hours of daylight does Grafton have in May?
What time are sunrise and sunset in May in Grafton?
How long on average sun shines in May in Grafton?
What is the UV index reading in May in Grafton?
Average temperature in May
Grafton, WV
- Average high temperature in May: 71.6°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in May: 51.1°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in May
Grafton, WV
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in May
Grafton, WV
- Average wind speed in May: 5.7mph
The windiest month (with the highest average wind speed) is January (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in May
Grafton, WV
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in May
Grafton, WV
- Average rainfall in May: 4.06"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in May
Grafton, WV
- Average rainfall days in May: 20.8 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is February (11.9 days).
Average snowfall in May
Grafton, WV
- Average snowfall in May: 0.67"
The month with the highest snowfall is January (7.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Grafton, WV
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Grafton, WV
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in May
Grafton, WV
- Average sunshine days in May: 8.8 days
The month with the most sunshine days is October (13.7 days).
The month with the least sunshine days is January (6.5 days).
Average UV index in May
Grafton, WV
- Average UV index in May: 5
The month with the highest UV index is 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
Grafton, WV
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Grafton, WV
- Average visibility in May: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Grafton, West Virginia, USA
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