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
Noticing a change, the average high-temperature during May moves from April's refreshing 64.9°F (18.3°C) to a warm 74.1°F (23.4°C). During May nights, Letcher records an average temperature of 52.9°F (11.6°C).Humidity
In Letcher, the average relative humidity in May is 79%.Rainfall
In Letcher, in May, during 20.8 rainfall days, 3.86" (98mm) of precipitation is typically accumulated. Throughout the year, there are 195.8 rainfall days, and 40.35" (1025mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Letcher. During 0.1 snowfall days, in May, Letcher aggregates 0.04" (1mm) of snow. Throughout the year, there are 38.6 snowfall days, and 19.29" (490mm) of snow is accumulated.Daylight
In Letcher, the average length of the day in May is 14h and 11min.On the first day of the month, sunrise is at 6:36 am and sunset at 8:21 pm. On the last day of May, sunrise is at 6:13 am and sunset at 8:45 pm EDT.
Sunshine
In Letcher, the average sunshine in May is 9h.UV index
May, June and August, with an average maximum UV index of 6, are months with the highest UV index in Letcher. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 6 in May interprets into the following advice:
Guard against overexposure. Protection from sun-induced harm is essential. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Letcher?
What is the average humidity in May in Letcher?
How much does it rain in Letcher in May?
What is the last month it snows in Letcher?
What is the average length of the day in May in Letcher?
What time are sunrise and sunset in May in Letcher?
How many hours of sunshine does Letcher have in May?
What is the month with the highest UV index in Letcher?
How high is the UV index in May in Letcher?
Average temperature in May
Letcher, KY
- Average high temperature in May: 74.1°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 (40.1°F).
- Average low temperature in May: 52.9°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in May
Letcher, KY
- Average pressure in May: 30.02"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in May
Letcher, KY
- Average wind speed in May: 5.5mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in May
Letcher, KY
- Average humidity in May: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is November (76%).
Average rainfall in May
Letcher, KY
- Average rainfall in May: 3.86"
The wettest month (with the highest rainfall) is February (4.13").
The driest month (with the least rainfall) is September (2.48").
Average rainfall days in May
Letcher, KY
- Average rainfall days in May: 20.8 days
The months with the highest number of rainy days are May and July (20.8 days).
The month with the least rainy days is February (12.6 days).
Average snowfall in May
Letcher, KY
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Letcher, KY
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Letcher, KY
- 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 0min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Letcher, KY
- Average sunshine days in May: 8 days
The month with the most sunshine days is November (15.1 days).
The month with the least sunshine days is May (8 days).
Average UV index in May
Letcher, KY
- Average UV index in May: 6
The months with the highest UV index are May, June 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
Letcher, KY
- Average cloud cover in May: 43
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Letcher, KY
- Average visibility in May: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Letcher, Kentucky, USA
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