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
With December's arrival, Foster's weather changes as the average high-temperature falls from a fresh 52.2°F (11.2°C) in November to a cold 42.6°F (5.9°C). The average temperature during December nights dips to a freezing cold 31.3°F (-0.4°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 81%.Rainfall
In Foster, in December, it is raining for 11.4 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, in Foster, there are 156.2 rainfall days, and 26.1" (663mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Foster, in December, snow falls for 7.7 days, with typically accumulated 1.14" (29mm) of snow. In Foster, during the entire year, snow falls for 32.5 days and aggregates up to 7.4" (188mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:36 am and sunset at 5:15 pm. On the last day of the month, sunrise is at 7:55 am and sunset at 5:25 pm EST.
Sunshine
The average sunshine in December in Foster, Kentucky, is 4.2h.UV index
The months with the lowest UV index in Foster are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
How cold does it get in Foster in December?
What are the most humid months in Foster?
What is the average humidity in December in Foster?
How much does it rain in Foster in December?
How much does it snow in Foster in December?
What is the month with the shortest days in Foster?
How many hours of daylight does Foster have in December?
What time are sunrise and sunset in December in Foster?
How many hours of sunshine does Foster have in December?
When is the lowest UV index in Foster?
What is the UV index intensity in December in Foster?
Average temperature in December
Foster, KY
- Average high temperature in December: 42.6°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 31.3°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in December
Foster, KY
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Foster, KY
- Average wind speed in December: 7.9mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in December
Foster, KY
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Foster, KY
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in December
Foster, KY
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in December
Foster, KY
- Average snowfall in December: 1.14"
The month with the highest snowfall is January (1.89").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Foster, KY
- Average snowfall days in December: 7.7 days
The month with the highest number of snowfall days is January (8.4 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
Foster, KY
- Average daylight in December: 9h and 3min
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 1min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Foster, KY
- Average sunshine days in December: 13.2 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Foster, 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
Foster, KY
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Foster, KY
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are February, May and July (5mi).
Foster, Kentucky, USA
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