May weather forecastThornhill, KY
May
Weather in May
The last month of the spring, May, is a moderately hot month in Thornhill, Kentucky, with an average temperature varying between 75.6°F (24.2°C) and 56.8°F (13.8°C).Temperature
As May arrives, Thornhill's weather shows an increase in high-temperatures, moving from April's comfortable 66°F (18.9°C) to a moderately hot 75.6°F (24.2°C). Thornhill throughout May, experiences an average nighttime temperature of 56.8°F (13.8°C).Humidity
The average relative humidity in May is 78%.Rainfall
In Thornhill, in May, it is raining for 18.5 days, with typically 3.39" (86mm) of accumulated precipitation. In Thornhill, during the entire year, the rain falls for 168.9 days and collects up to 34.09" (866mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Thornhill, Kentucky, the average length of the day in May is 14h and 16min.On the first day of the month, sunrise is at 6:44 am and sunset at 8:34 pm. On the last day of May, in Thornhill, sunrise is at 6:20 am and sunset at 8:59 pm EDT.
Sunshine
In Thornhill, the average sunshine in May is 8.9h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: During May, 6 as the daily maximum UV index converts into the following advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Thornhill, KY
- Average high temperature in May: 75.6°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in May: 56.8°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in May
Thornhill, KY
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Thornhill, KY
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in May
Thornhill, KY
- Average humidity in May: 78%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is August (73%).
Average rainfall in May
Thornhill, KY
- Average rainfall in May: 3.39"
The wettest month (with the highest rainfall) is April (3.98").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in May
Thornhill, KY
- 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 February (10.6 days).
Average snowfall in May
Thornhill, KY
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Thornhill, KY
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Thornhill, KY
- Average daylight in May: 14h and 18min
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 36min).
- Average sunshine in May: 8h and 54min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Thornhill, KY
- Average sunshine days in May: 10.2 days
The month with the most sunshine days is October (17.9 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in May
Thornhill, 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, November and December (UV index 2).
Average cloud cover in May
Thornhill, KY
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Thornhill, KY
- Average visibility in May: 5mi
The months with the highest visibility are March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, May and December (5mi).
