December weather forecastSmiths Grove, KY
December
Weather in December
The first month of the winter, December, is still a chilly month in Smiths Grove, Kentucky, with an average temperature ranging between max 47.3°F (8.5°C) and min 34.3°F (1.3°C).Temperature
The onset of December results in a small decrease in the average high-temperature, moderately receding from a refreshing 55.6°F (13.1°C) in November to a frosty 47.3°F (8.5°C). Throughout December, Smiths Grove's nights cool down to an average of 34.3°F (1.3°C).Humidity
February, March, May and December, with an average relative humidity of 79%, are the most humid months.Rainfall
In Smiths Grove, in December, it is raining for 9.7 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 147.6 rainfall days, and 22.6" (574mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Smiths Grove. In Smiths Grove, during December, snow falls for 2.6 days and regularly aggregates up to 0.83" (21mm) of snow. In Smiths Grove, during the entire year, snow falls for 14 days and aggregates up to 3.27" (83mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 6:40 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 4:38 pm CST.
Sunshine
In December, the average sunshine in Smiths Grove 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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Smiths Grove, KY
- Average high temperature in December: 47.3°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 (42.1°F).
- Average low temperature in December: 34.3°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in December
Smiths Grove, 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
Smiths Grove, KY
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in December
Smiths Grove, KY
- Average humidity in December: 79%
The months with the highest relative humidity are February, March, May and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Smiths Grove, KY
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is September (1.18").
Average rainfall days in December
Smiths Grove, KY
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in December
Smiths Grove, KY
- Average snowfall in December: 0.83"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Smiths Grove, KY
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is February (4.3 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
Smiths Grove, KY
- Average daylight in December: 9h and 42min
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 42min).
- Average sunshine in December: 4h and 36min
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
Smiths Grove, KY
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in December
Smiths Grove, 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
Smiths Grove, KY
- Average cloud cover in December: 52
The months with the most cloud cover are January and February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Smiths Grove, 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).





