Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
In December, the meteorological conditions change slightly, with the average high-temperature moving from a refreshing 55.8°F (13.2°C) in November to a chilly 47.3°F (8.5°C). The average temperature during December nights dips to a cold 34.7°F (1.5°C).Humidity
The most humid month is December, with an average relative humidity of 80%.Rainfall
In Harlan Crossroads, in December, it is raining for 13.8 days, with typically 3.58" (91mm) of accumulated precipitation. Throughout the year, in Harlan Crossroads, there are 182.5 rainfall days, and 41.85" (1063mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Harlan Crossroads, during December, snow falls for 4.9 days and regularly aggregates up to 1.38" (35mm) of snow. Throughout the year, in Harlan Crossroads, Kentucky, there are 23.4 snowfall days, and 8.82" (224mm) of snow is accumulated.Daylight
December has the shortest days of the year in Harlan Crossroads, with an average of 9h and 42min of daylight.On the first day of December in Harlan Crossroads, sunrise is at 6:37 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 4:37 pm CST.
Sunshine
The average sunshine in December is 4.5h.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 of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Harlan Crossroads?
What is the most humid month in Harlan Crossroads?
What is the average humidity in December in Harlan Crossroads?
How much does it rain in Harlan Crossroads in December?
How much does it snow in Harlan Crossroads in December?
What is the month with the shortest days in Harlan Crossroads?
What is the average length of the day in December in Harlan Crossroads?
What time are sunrise and sunset in December in Harlan Crossroads?
How long on average sun shines in December in Harlan Crossroads?
What are the months with the lowest UV index in Harlan Crossroads?
What is the UV index reading in December in Harlan Crossroads?
Average temperature in December
Harlan Crossroads, KY
- Average high temperature in December: 47.3°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 (42.1°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in December
Harlan Crossroads, 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 (29.96"Hg).
Average wind speed in December
Harlan Crossroads, KY
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is February (8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Harlan Crossroads, KY
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are April, October and November (76%).
Average rainfall in December
Harlan Crossroads, KY
- Average rainfall in December: 3.58"
The wettest months (with the highest rainfall) are February and July (4.25").
The driest month (with the least rainfall) is September (2.4").
Average rainfall days in December
Harlan Crossroads, KY
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (11.2 days).
Average snowfall in December
Harlan Crossroads, KY
- Average snowfall in December: 1.38"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Harlan Crossroads, KY
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is January (6.7 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
Harlan Crossroads, KY
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 4h and 3min
The months with the most sunshine are June and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Harlan Crossroads, KY
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in December
Harlan Crossroads, 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
Harlan Crossroads, KY
- Average cloud cover in December: 53
The month with the most cloud cover is February (Cloud cover 55).
The months with the least cloud cover are June and August (Cloud cover 30).
Average visibility in December
Harlan Crossroads, KY
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are January, May, July and August (5mi).
Harlan Crossroads, Kentucky, USA
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