May weather forecastJeffersontown, KY
May
Weather in May
May weather in Jeffersontown is characterized by a pleasant rise in temperatures. The mercury levels fluctuate between a low of 57°F (13.9°C) and a high of 75.7°F (24.3°C). With zero snowfall, rainfall dominates the month at 2.05" (52mm), keeping the surroundings lush and green. The improvements in weather condition make outdoor activities particularly enjoyable during this month.Temperature
In May, the meteorological conditions change with the average high-temperature moving from a comfortable 66.4°F (19.1°C) in April to a warm 75.7°F (24.3°C). During May nights, Jeffersontown witnesses a consistent average temperature of 57°F (13.9°C).Humidity
In Jeffersontown, the average relative humidity in May is 78%.Rainfall
The months with the most rainfall are April and May, with an average 2.05" (52mm) of precipitation.Snowfall
In Jeffersontown, snow does not fall in May through October.Daylight
The average length of the day in May in Jeffersontown is 14h and 16min.On the first day of the month, sunrise is at 6:44 am and sunset at 8:33 pm. On the last day of May, sunrise is at 6:20 am and sunset at 8:59 pm EDT.
Sunshine
In Jeffersontown, the average sunshine in May is 9h.UV index
In Jeffersontown, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 5 in May transforms into the following instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Jeffersontown, KY
- Average high temperature in May: 75.7°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 (39°F).
- Average low temperature in May: 57°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in May
Jeffersontown, 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 (29.95"Hg).
Average wind speed in May
Jeffersontown, KY
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in May
Jeffersontown, KY
- Average humidity in May: 78%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (73%).
Average rainfall in May
Jeffersontown, KY
- Average rainfall in May: 2.05"
The wettest months (with the highest rainfall) are April and May (2.05").
The driest month (with the least rainfall) is September (0.87").
Average rainfall days in May
Jeffersontown, KY
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in May
Jeffersontown, KY
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Jeffersontown, KY
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (5.9 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
Jeffersontown, 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: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in May
Jeffersontown, KY
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in May
Jeffersontown, KY
- Average UV index in May: 5
The months with the highest UV index are 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
Jeffersontown, KY
- Average cloud cover in May: 41
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
Jeffersontown, KY
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February and May (5mi).





