May weather forecastGrassy Creek, KY
May
Weather in May
The last month of the spring, May, is a moderately hot month in Grassy Creek, Kentucky, with temperature in the range of an average high of 75.7°F (24.3°C) and an average low of 55°F (12.8°C).Temperature
Grassy Creek's transition into May is marked by a rise in the average high-temperature, advancing from a refreshing 65.8°F (18.8°C) in April to a warm 75.7°F (24.3°C). Grassy Creek reports an average low-temperature of 55°F (12.8°C) during the nights of May.Humidity
The average relative humidity in May is 77%.Rainfall
In May, in Grassy Creek, the rain falls for 17.3 days. Throughout May, 2.8" (71mm) of precipitation is accumulated. Throughout the year, there are 162.2 rainfall days, and 29.45" (748mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Grassy Creek, the average length of the day in May is 14h and 14min.On the first day of May, sunrise is at 6:36 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:49 pm EDT.
Sunshine
In Grassy Creek, the average sunshine in May is 9h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The UV index of 6 in May translates into these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Grassy Creek, KY
- Average high temperature in May: 75.7°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in May: 55°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in May
Grassy Creek, KY
- Average pressure in May: 30.01"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Grassy Creek, KY
- Average wind speed in May: 6.1mph
The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in May
Grassy Creek, KY
- Average humidity in May: 77%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are June, August and November (75%).
Average rainfall in May
Grassy Creek, KY
- Average rainfall in May: 2.8"
The wettest month (with the highest rainfall) is February (2.99").
The driest months (with the least rainfall) are September and November (1.89").
Average rainfall days in May
Grassy Creek, KY
- Average rainfall days in May: 17.3 days
The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in May
Grassy Creek, KY
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.23").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Grassy Creek, KY
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Grassy Creek, KY
- Average daylight in May: 14h and 12min
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 36min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Grassy Creek, KY
- Average sunshine days in May: 11.2 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in May
Grassy Creek, KY
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in May
Grassy Creek, KY
- Average cloud cover in May: 43
The months with the most cloud cover are January and February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Grassy Creek, KY
- Average visibility in May: 5mi
The months with the highest visibility are March, April, October and November (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and December (5mi).





