December weather forecastSouth Lebanon, NY
December
Weather in December
December, the first month of the winter in South Lebanon, is also an icy month, with an average temperature fluctuating between 32.9°F (0.5°C) and 23.2°F (-4.9°C).Temperature
December's onset corresponds with a shift in the average high-temperature, moving from a frosty 43.2°F (6.2°C) in November to a wintry 32.9°F (0.5°C). The average low-temperature during December nights is a subzero cold 23.2°F (-4.9°C).Humidity
The average relative humidity in December is 87%.Rainfall
In December, the rain falls for 11.7 days. Throughout December, 2.8" (71mm) of precipitation is accumulated. In South Lebanon, during the entire year, the rain falls for 171.6 days and collects up to 34.09" (866mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 17.2 days. Throughout December, 8.7" (221mm) of snow is accumulated. Throughout the year, there are 90.9 snowfall days, and 44.8" (1138mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:14 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 4:38 pm EST.
Sunshine
The average sunshine in December is 2.9h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In December, the average maximum UV index of 1 translates into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
South Lebanon, NY
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in December: 23.2°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in December
South Lebanon, NY
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
South Lebanon, NY
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
South Lebanon, NY
- Average humidity in December: 87%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in December
South Lebanon, NY
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in December
South Lebanon, NY
- Average rainfall days in December: 11.7 days
The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in December
South Lebanon, NY
- Average snowfall in December: 8.7"
The month with the highest snowfall is February (9.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
South Lebanon, NY
- Average snowfall days in December: 17.2 days
The month with the highest number of snowfall days is January (19.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
South Lebanon, NY
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 2h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in December
South Lebanon, NY
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (4.6 days).
Average UV index in December
South Lebanon, NY
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
South Lebanon, NY
- Average cloud cover in December: 71
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in December
South Lebanon, NY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
