December weather forecastLebanon, OH
December
Weather in December
December, the first month of the winter in Lebanon, is still a cold month, with an average temperature fluctuating between 40.5°F (4.7°C) and 29.5°F (-1.4°C).Temperature
With the onset of December, Lebanon's average high-temperature adjusts, receding from November's fresh 50.4°F (10.2°C) to a cold 40.5°F (4.7°C). In Lebanon, December nights cool down to an average of 29.5°F (-1.4°C).Humidity
In Lebanon, the average relative humidity in December is 81%.Rainfall
In Lebanon, in December, during 10.5 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. In Lebanon, during the entire year, the rain falls for 150.3 days and collects up to 25" (635mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 6.6 days. Throughout December, 1.61" (41mm) of snow is accumulated. In Lebanon, during the entire year, snow falls for 29.8 days and aggregates up to 8.66" (220mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:38 am and sunset at 5:13 pm. On the last day of December, sunrise is at 7:56 am and sunset at 5:23 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
The month with the lowest UV index in Lebanon is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lebanon, OH
- Average high temperature in December: 40.5°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in December: 29.5°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in December
Lebanon, OH
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Lebanon, OH
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
Lebanon, OH
- Average humidity in December: 81%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Lebanon, OH
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
Lebanon, OH
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (8 days).
Average snowfall in December
Lebanon, OH
- Average snowfall in December: 1.61"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Lebanon, OH
- Average snowfall days in December: 6.6 days
The month with the highest number of snowfall days is January (8.5 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
Lebanon, OH
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 6min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Lebanon, OH
- Average sunshine days in December: 14.7 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in December
Lebanon, OH
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Lebanon, OH
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Lebanon, OH
- 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).





