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 the arrival of December, Oswego experiences a modest decline in average high-temperatures, transitioning from a cool 54.5°F (12.5°C) in November to a frosty 46.4°F (8°C). An average low-temperature of 33.3°F (0.7°C) is noted during the month of December.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 81%.Rainfall
In Oswego, during December, the rain falls for 14.3 days and regularly aggregates up to 3.7" (94mm) of precipitation. Throughout the year, there are 185.9 rainfall days, and 42.28" (1074mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Oswego. In December, it is snowing for 6 days. Throughout December, 2.01" (51mm) of snow is accumulated. Throughout the year, there are 30.3 snowfall days, and 10.71" (272mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:30 am and sunset at 5:21 pm. On the last day of December, in Oswego, sunrise is at 7:48 am and sunset at 5:31 pm EST.
Sunshine
In Oswego, the average sunshine in December is 4.6h.UV index
The months with the lowest UV index in Oswego 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 exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What are the most humid months?
What is the average humidity in December?
How much does it rain in Oswego in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December in Oswego?
What time are sunrise and sunset in December?
How many hours of sunshine does Oswego have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Oswego, TN
- Average high temperature in December: 46.4°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 (41.7°F).
- Average low temperature in December: 33.3°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in December
Oswego, TN
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Oswego, TN
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
Oswego, TN
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are June and August (77%).
Average rainfall in December
Oswego, TN
- Average rainfall in December: 3.7"
The wettest month (with the highest rainfall) is February (4.65").
The driest month (with the least rainfall) is September (2.44").
Average rainfall days in December
Oswego, TN
- Average rainfall days in December: 14.3 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in December
Oswego, TN
- Average snowfall in December: 2.01"
The month with the highest snowfall is February (3.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Oswego, TN
- Average snowfall days in December: 6 days
The month with the highest number of snowfall days is January (9.1 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
Oswego, TN
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Oswego, TN
- Average sunshine days in December: 12.5 days
The month with the most sunshine days is October (15.9 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in December
Oswego, TN
- Average UV index in December: 2
The months with the highest UV index are May, June 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
Oswego, TN
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is June (Cloud cover 33).
Average visibility in December
Oswego, TN
- Average visibility in December: 5mi
The month with the highest visibility is November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and December (5mi).
Oswego, Tennessee, USA
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