Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April's onset is marked by a temperature increase, moving from a cool 54.1°F (12.3°C) in March to a comfortable 66.2°F (19°C). The temperature in Louisville dips to an average of 47.5°F (8.6°C) during April nights.Humidity
In Louisville, the average relative humidity in April is 76%.Rainfall
In April, the rain falls for 13.8 days. Throughout April, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 145.2 rainfall days, and 17.64" (448mm) of precipitation is accumulated.Snowfall
Months with snowfall in Louisville are January through April, November and December. April is the last month it regularly snows in Louisville, Kentucky. During 0.5 snowfall days, in April, Louisville aggregates 0.16" (4mm) of snow. In Louisville, during the entire year, snow falls for 25 days and aggregates up to 3.7" (94mm) of snow.Daylight
The average length of the day in April in Louisville is 13h and 13min.On the first day of the month, sunrise is at 7:26 am and sunset at 8:06 pm. On the last day of April, in Louisville, sunrise is at 6:46 am and sunset at 8:33 pm EDT.
Sunshine
In April, the average sunshine in Louisville is 7.7h.UV index
In April, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 5 during April, leads to the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Louisville in April?
What is the average humidity in April in Louisville?
How many days does it rain in April in Louisville?
What is the last month it snows in Louisville?
What is the average length of the day in April in Louisville?
What time are sunrise and sunset in April in Louisville?
How many hours of sunshine does Louisville have in April?
What is the UV index intensity in April in Louisville?
Average temperature in April
Louisville, KY
- Average high temperature in April: 66.2°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 April: 47.5°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 April
Louisville, KY
- Average pressure in April: 29.96"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 April
Louisville, KY
- Average wind speed in April: 7.6mph
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 April
Louisville, KY
- Average humidity in April: 76%
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 April
Louisville, KY
- Average rainfall in April: 1.81"
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 April
Louisville, KY
- Average rainfall days in April: 13.8 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 April
Louisville, KY
- Average snowfall in April: 0.16"
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 April
Louisville, KY
- Average snowfall days in April: 0.5 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 April /
Average sunshine in April
Louisville, KY
- Average daylight in April: 13h and 1min
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 April: 7h and 4min
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 April
Louisville, KY
- Average sunshine days in April: 13.8 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 April
Louisville, KY
- Average UV index in April: 5
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 April
Louisville, KY
- Average cloud cover in April: 43
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 April
Louisville, KY
- Average visibility in April: 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).
Louisville, Kentucky, USA
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