December weather forecastWest Louisville, KY
December
Weather in December
The first month of the winter, December, is also a frosty month in West Louisville, Kentucky, with an average temperature fluctuating between 33.4°F (0.8°C) and 45.1°F (7.3°C).Temperature
Setting in of December comes with a decrease in the average high-temperature, moving from a cool 54.3°F (12.4°C) in November to a frosty 45.1°F (7.3°C). Throughout December, West Louisville records an average temperature of 33.4°F (0.8°C) at night.Humidity
In December, the average relative humidity is 78%.Rainfall
In December, the rain falls for 11.5 days. Throughout December, 2.48" (63mm) of precipitation is accumulated. In West Louisville, during the entire year, the rain falls for 158.3 days and collects up to 31.3" (795mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In West Louisville, during December, snow falls for 4.2 days and regularly aggregates up to 0.98" (25mm) of snow. In West Louisville, during the entire year, snow falls for 20.5 days and aggregates up to 5.24" (133mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 6:46 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 4:40 pm CST.
Sunshine
The average sunshine in December in West Louisville is 4.6h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: In December, an average UV index of 2 transforms into the following instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
West Louisville, KY
- Average high temperature in December: 45.1°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 (39.9°F).
- Average low temperature in December: 33.4°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in December
West Louisville, KY
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
West Louisville, KY
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest month (with the lowest average wind speed) is July (5.4mph).
Average humidity in December
West Louisville, KY
- Average humidity in December: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
West Louisville, KY
- Average rainfall in December: 2.48"
The wettest month (with the highest rainfall) is April (3.86").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in December
West Louisville, KY
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in December
West Louisville, KY
- Average snowfall in December: 0.98"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
West Louisville, KY
- Average snowfall days in December: 4.2 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
West Louisville, KY
- Average daylight in December: 9h and 36min
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 December: 4h and 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
West Louisville, KY
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in December
West Louisville, KY
- Average UV index in December: 2
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 and December (UV index 2).
Average cloud cover in December
West Louisville, KY
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility in December
West Louisville, KY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
