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's arrival brings a change in high-temperatures, moving from a comfortable 66.2°F (19°C) in April to a warm 75.7°F (24.3°C). In Louisville, the nighttime temperature averages to a moderate 57.2°F (14°C) during May.Humidity
In May, the average relative humidity in Louisville, Kentucky, is 78%.Rainfall
The wettest months in Louisville are May and July, with an average 1.89" (48mm) of rainfall.Snowfall
May through October are months without snowfall in Louisville.Daylight
In Louisville, the average length of the day in May is 14h and 16min.On the first day of the month, sunrise is at 6:45 am and sunset at 8:34 pm. On the last day of May, in Louisville, Kentucky, sunrise is at 6:21 am and sunset at 9:00 pm EDT.
Sunshine
In Louisville, the average sunshine in May is 8.9h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 6 during May morphs into the following directions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Louisville?
What is the average humidity in May in Louisville?
What is the rainiest month in Louisville?
How much does it rain in Louisville in May?
When it does not snow in Louisville?
Does it snow in Louisville in May?
What is the average length of the day in May in Louisville?
When is the sunrise / sunset in May in Louisville?
How long on average sun shines in May in Louisville?
When is the highest UV index in Louisville?
What is the UV index reading in May in Louisville?
Average temperature in May
Louisville, KY
- Average high temperature in May: 75.7°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in May: 57.2°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in May
Louisville, 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
Louisville, KY
- Average wind speed in May: 6.2mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in May
Louisville, KY
- Average humidity in May: 78%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are August and October (73%).
Average rainfall in May
Louisville, KY
- Average rainfall in May: 1.89"
The wettest months (with the highest rainfall) are May and July (1.89").
The driest months (with the least rainfall) are January and September (1.06").
Average rainfall days in May
Louisville, KY
- Average rainfall days in May: 16 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in May
Louisville, KY
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Louisville, KY
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.3 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
Louisville, 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 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).
Average sunshine days in May
Louisville, KY
- Average sunshine days in May: 11.7 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in May
Louisville, 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
Louisville, KY
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Louisville, KY
- Average visibility in May: 5mi
The months with the highest visibility are March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and May (5mi).
Louisville, Kentucky, USA
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