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 arrival of May brings a temperature shift, with the average high-temperature escalating from a comfortable 61.3°F (16.3°C) in April to a pleasant 71.2°F (21.8°C). In Clay, the average temperature during the nights of May drops to a cool 51.4°F (10.8°C).Humidity
In Clay, the average relative humidity in May is 80%.Rainfall
The month with the most rainfall is May, when the rain falls for 23.3 days and typically aggregates up to 4.21" (107mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Clay. May is the last month it regularly snows. During 0.3 snowfall days, in May, Clay aggregates 0.39" (10mm) of snow. In Clay, West Virginia, during the entire year, snow falls for 60.4 days and aggregates up to 38.62" (981mm) of snow.Daylight
In Clay, the average length of the day in May is 14h and 17min.On the first day of the month, sunrise is at 6:26 am and sunset at 8:16 pm. On the last day of May, sunrise is at 6:02 am and sunset at 8:42 pm EDT.
Sunshine
In May, the average sunshine in Clay, West Virginia, is 8.9h.UV index
In Clay, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 5 in May translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Enhance your sun protection with tightly woven, yet airy clothing. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Clay?
What is the average humidity in May in Clay?
What is the rainiest month in Clay?
How many days does it rain in May in Clay?
What is the last month it snows in Clay?
What is the average length of the day in May in Clay?
When is the sunrise / sunset in May in Clay?
How long on average sun shines in May in Clay?
How high is the UV index in May in Clay?
Average temperature in May
Clay, WV
- Average high temperature in May: 71.2°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (36.5°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in May
Clay, WV
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in May
Clay, WV
- Average wind speed in May: 5.8mph
The windiest months (with the highest average wind speed) are January and February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in May
Clay, WV
- Average humidity in May: 80%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are June, July, August and November (78%).
Average rainfall in May
Clay, WV
- Average rainfall in May: 4.21"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in May
Clay, WV
- Average rainfall days in May: 23.3 days
The month with the highest number of rainy days is May (23.3 days).
The month with the least rainy days is November (12.2 days).
Average snowfall in May
Clay, WV
- Average snowfall in May: 0.39"
The month with the highest snowfall is January (8.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Clay, WV
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Clay, WV
- 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: 8h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Clay, WV
- Average sunshine days in May: 6.1 days
The month with the most sunshine days is October (14.6 days).
The month with the least sunshine days is May (6.1 days).
Average UV index in May
Clay, WV
- Average UV index in May: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Clay, WV
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in May
Clay, 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).
Clay, West Virginia, USA
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