December weather forecastLebanon, MO
December
Weather in December
December, the first month of the winter in Lebanon, is also a frosty month, with temperature in the range of an average high of 43.9°F (6.6°C) and an average low of 29.5°F (-1.4°C).Temperature
The shift from November to December corresponds with a decrease in the average high-temperature, down to a frosty 43.9°F (6.6°C) from a cool 54.3°F (12.4°C). Throughout the month of December, Lebanon witnesses an average temperature of 29.5°F (-1.4°C).Humidity
In December, the average relative humidity is 76%.Rainfall
In Lebanon, during December, the rain falls for 8.5 days and regularly aggregates up to 2.09" (53mm) of precipitation. In Lebanon, during the entire year, the rain falls for 150.2 days and collects up to 31.18" (792mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Lebanon, in December, snow falls for 4.9 days, with typically accumulated 1.97" (50mm) of snow. Throughout the year, there are 25.2 snowfall days, and 10.91" (277mm) of snow is accumulated.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 7:07 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:02 pm CST.
Sunshine
The average sunshine in December is 5.3h.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 low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lebanon, MO
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in December: 29.5°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in December
Lebanon, MO
- 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 (29.93"Hg).
Average wind speed in December
Lebanon, MO
- Average wind speed in December: 9.3mph
The windiest months (with the highest average wind speed) are January and March (9.6mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in December
Lebanon, MO
- Average humidity in December: 76%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are August, September, October and November (73%).
Average rainfall in December
Lebanon, MO
- Average rainfall in December: 2.09"
The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Lebanon, MO
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (8.3 days).
Average snowfall in December
Lebanon, MO
- Average snowfall in December: 1.97"
The month with the highest snowfall is February (3.39").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Lebanon, MO
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lebanon, MO
- 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: 5h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in December
Lebanon, MO
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in December
Lebanon, MO
- 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
Lebanon, MO
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in December
Lebanon, MO
- 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).
