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
Entering May, Thornhill sees a temperature rise, with the average high-temperature advancing from April's refreshing 66°F (18.9°C) to a warm 75.6°F (24.2°C). Thornhill witnesses a consistent average low-temperature of 56.8°F (13.8°C) throughout May.Humidity
In Thornhill, the average relative humidity in May is 78%.Rainfall
In Thornhill, during May, the rain falls for 18.5 days and regularly aggregates up to 3.39" (86mm) of precipitation. Throughout the year, there are 168.9 rainfall days, and 34.09" (866mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Thornhill.Daylight
The average length of the day in May in Thornhill 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, sunrise is at 6:20 am and sunset at 8:59 pm EDT.
Sunshine
In May, the average sunshine in Thornhill is 8.9h.UV index
The months with the highest UV index in Thornhill are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In May, a daily maximum UV index of 6 leads to the following instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What are May temperatures in Thornhill?
What is the average humidity in May in Thornhill?
How many days does it rain in May in Thornhill?
When it does not snow in Thornhill?
Does it snow in Thornhill in May?
What is the average length of the day in May in Thornhill?
When are sunrise and sunset in May in Thornhill?
How many hours of sunshine does Thornhill have in May?
When is the highest UV index in Thornhill?
What is the UV index intensity in May in Thornhill?
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 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 36min).
- Average sunshine in May: 8h and 5min
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).
Thornhill, Kentucky, USA
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