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
May brings a slight elevation in the average high-temperature, transitioning from April's refreshing 66.4°F (19.1°C) to a warm 75.2°F (24°C). Mount Vernon, during the month of May, experiences an average low-temperature of 55.9°F (13.3°C).Humidity
In May, the average relative humidity is 79%.Rainfall
In Mount Vernon, during May, the rain falls for 18.8 days and regularly aggregates up to 3.62" (92mm) of precipitation. In Mount Vernon, during the entire year, the rain falls for 181 days and collects up to 40.28" (1023mm) of precipitation.Snowfall
May through September are months without snowfall in Mount Vernon.Daylight
In Mount Vernon, the average length of the day in May is 14h and 11min.On the first day of the month, sunrise is at 6:41 am and sunset at 8:27 pm. On the last day of May, sunrise is at 6:18 am and sunset at 8:52 pm EDT.
Sunshine
The average sunshine in May is 9.3h.UV index
The months with the highest UV index in Mount Vernon 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 unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 during May translates into the following directions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
How many hours of daylight does Mount Vernon have in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What is the month with the highest UV index?
What is the UV index reading in May?
Average temperature in May
Mount Vernon, KY
- Average high temperature in May: 75.2°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in May: 55.9°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in May
Mount Vernon, KY
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Mount Vernon, KY
- Average wind speed in May: 6.2mph
The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in May
Mount Vernon, KY
- Average humidity in May: 79%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are June, August, September, October and November (76%).
Average rainfall in May
Mount Vernon, KY
- Average rainfall in May: 3.62"
The wettest month (with the highest rainfall) is February (4.13").
The driest month (with the least rainfall) is September (2.44").
Average rainfall days in May
Mount Vernon, KY
- Average rainfall days in May: 18.8 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is January (11.8 days).
Average snowfall in May
Mount Vernon, KY
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Mount Vernon, KY
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (9.8 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
Mount Vernon, 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 36min).
- Average sunshine in May: 9h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Mount Vernon, KY
- Average sunshine days in May: 10.8 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is February (9.7 days).
Average UV index in May
Mount Vernon, 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
Mount Vernon, KY
- Average cloud cover in May: 40
The months with the most cloud cover are January and February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Mount Vernon, KY
- Average visibility in May: 5mi
The months with the highest visibility are April, June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, September and December (5mi).
Mount Vernon, Kentucky, USA
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