December weather forecastCrestwood, KY
December
Weather in December
December, the first month of the winter in Crestwood, is also a frosty month, with an average temperature ranging between min 32°F (0°C) and max 44.1°F (6.7°C).Temperature
Transition into December marks a drop in the average high-temperature, moving from a cool 53.2°F (11.8°C) in November to a chilly 44.1°F (6.7°C). An average nighttime temperature of 32°F (0°C) is observed during December.Humidity
In Crestwood, Kentucky, the average relative humidity in December is 79%.Rainfall
In Crestwood, in December, during 12 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 157.9 rainfall days, and 31.77" (807mm) of precipitation is accumulated.Snowfall
Months with snowfall in Crestwood are January through April, November and December. In Crestwood, during December, snow falls for 5.1 days and regularly aggregates up to 1.22" (31mm) of snow. Throughout the year, there are 26.3 snowfall days, and 6.97" (177mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:40 am and sunset at 5:21 pm. On the last day of December, sunrise is at 7:58 am and sunset at 5:31 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 4.3h of sunshine.UV index
The months with the lowest UV index in Crestwood are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Crestwood, KY
- Average high temperature in December: 44.1°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 December: 32°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 December
Crestwood, KY
- Average pressure in December: 30.14"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 December
Crestwood, KY
- Average wind speed in December: 7.4mph
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 December
Crestwood, KY
- Average humidity in December: 79%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (73%).
Average rainfall in December
Crestwood, KY
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is April (3.54").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in December
Crestwood, KY
- Average rainfall days in December: 12 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in December
Crestwood, KY
- Average snowfall in December: 1.22"
The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Crestwood, KY
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is January (7.8 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
Crestwood, KY
- Average daylight in December: 9h and 30min
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 30min).
- Average sunshine in December: 4h and 18min
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 December
Crestwood, KY
- Average sunshine days in December: 15 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in December
Crestwood, KY
- Average UV index in December: 2
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 December
Crestwood, KY
- Average cloud cover in December: 55
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 December
Crestwood, KY
- Average visibility in December: 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).
