June weather forecastLouisville, KY

June
Weather in June
The arrival of summer in June is marked by an increase in highs, touching 84°F (28.9°C). June, together with July, provides the city with the longest daylight hours averaging around 14.8 hours. Rainfall decreases slightly to 1.54" (39mm), indicating a dip from the rainfall Louisville experienced in the past two months. Humidity relaxes a bit, dropping from the high 70s to 74%. Also, wind speeds decline to 5.7mph (9.2km/h), offering relative calm.Temperature
With the start of June, the average high-temperature marginally shifts from May's 75.7°F (24.3°C) to a still moderately hot 84°F (28.9°C). Louisville's average low-temperature during June nights is observed to be a comfortable 64.2°F (17.9°C).Heat index
For June, the heat index is calculated to be a tropical 91.4°F (33°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.Research indicates the heat index considers values in shaded locales and with light winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
In Louisville, Kentucky, the average relative humidity in June is 74%.Rainfall
In June, the rain falls for 12.4 days. Throughout June, 1.54" (39mm) of precipitation is accumulated. In Louisville, during the entire year, the rain falls for 145.2 days and collects up to 17.64" (448mm) of precipitation.Snowfall
May through October are months without snowfall in Louisville.Daylight
The month with the longest days in Louisville is June, with an average of 14h and 48min of daylight.On the first day of the month, sunrise is at 6:21 am and sunset at 9:00 pm. On the last day of June, sunrise is at 6:23 am and sunset at 9:10 pm EDT.
Sunshine
The months with the most sunshine are June and July, with an average of 10.4h of sunshine.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In June, the maximum UV index of 6 transforms into these recommendations:
Shield from overexposure. Defense against sun-related harm is required. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Louisville, KY
- Average high temperature in June: 84°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 June: 64.2°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 June
Louisville, KY
- Average pressure in June: 29.95"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 June
Louisville, KY
- Average wind speed in June: 5.7mph
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 June
Louisville, KY
- Average humidity in June: 74%
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 June
Louisville, KY
- Average rainfall in June: 1.54"
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 June
Louisville, KY
- Average rainfall days in June: 12.4 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 June
Louisville, KY
- Average snowfall in June: 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 June
Louisville, KY
- Average snowfall days in June: 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 June /
Average sunshine in June
Louisville, KY
- Average daylight in June: 14h and 48min
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 June: 10h and 24min
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 June
Louisville, KY
- Average sunshine days in June: 14 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 June
Louisville, KY
- Average UV index in June: 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 June
Louisville, KY
- Average cloud cover in June: 31
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 June
Louisville, KY
- Average visibility in June: 6mi
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).





