December weather forecastMcKnight, TN
December
Weather in December
The first month of the winter, December, is still a chilly month in McKnight, Tennessee, with temperature in the range of an average low of 35.4°F (1.9°C) and an average high of 48.7°F (9.3°C).Temperature
The advent of December brings a slight shift in average high-temperature, moving from a refreshing 57°F (13.9°C) in November to a frosty 48.7°F (9.3°C). An average low-temperature of 35.4°F (1.9°C) is observed in McKnight during the December nights.Humidity
March and December, with an average relative humidity of 79%, are the most humid months.Rainfall
In McKnight, in December, during 8.1 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In McKnight, during the entire year, the rain falls for 118.2 days and collects up to 10.83" (275mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in McKnight, Tennessee. The months with the most snowfall are January, February and December, with an average 0.2" (5mm) of accumulated snow.Daylight
The month with the shortest days in McKnight is December, with an average of 9h and 48min of daylight.On the first day of December in McKnight, Tennessee, sunrise is at 6:40 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 4:45 pm CST.
Sunshine
The average sunshine in December in McKnight is 4.6h.UV index
The months with the lowest UV index in McKnight are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
McKnight, TN
- Average high temperature in December: 48.7°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
McKnight, TN
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
McKnight, TN
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in December
McKnight, TN
- Average humidity in December: 79%
The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
McKnight, TN
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is July (1.38").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in December
McKnight, TN
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (6 days).
Average snowfall in December
McKnight, TN
- Average snowfall in December: 0.2"
The months with the highest snowfall are January, February and December (0.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
McKnight, TN
- Average snowfall days in December: 1.6 days
The month with the highest number of snowfall days is February (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
McKnight, TN
- Average daylight in December: 9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 4h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
McKnight, TN
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in December
McKnight, TN
- 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 and December (UV index 2).
Average cloud cover in December
McKnight, TN
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
McKnight, TN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).
