December weather forecastGlenmary, TN
December
Weather in December
The first month of the winter, December, is still a chilly month in Glenmary, Tennessee, with temperature in the range of an average high of 46.2°F (7.9°C) and an average low of 32.9°F (0.5°C).Temperature
With the onset of December, Glenmary's average high-temperature slightly adjusts, moderately receding from November's fresh 54.1°F (12.3°C) to a frosty 46.2°F (7.9°C). Throughout December, a steady low-temperature average of 32.9°F (0.5°C) is noted.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 81%.Rainfall
In Glenmary, in December, during 12.8 rainfall days, 3.54" (90mm) of precipitation is typically accumulated. Throughout the year, there are 174 rainfall days, and 39.69" (1008mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 6.3 days. Throughout December, 2.4" (61mm) of snow is accumulated. In Glenmary, during the entire year, snow falls for 31.5 days and aggregates up to 13.11" (333mm) of snow.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:31 am and sunset at 5:23 pm. On the last day of December, sunrise is at 7:49 am and sunset at 5:33 pm EST.
Sunshine
In Glenmary, the average sunshine in December is 4.4h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Glenmary, TN
- Average high temperature in December: 46.2°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 (41.9°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in December
Glenmary, 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 (29.97"Hg).
Average wind speed in December
Glenmary, TN
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Glenmary, TN
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is June (77%).
Average rainfall in December
Glenmary, TN
- Average rainfall in December: 3.54"
The wettest month (with the highest rainfall) is February (4.53").
The driest months (with the least rainfall) are September and November (2.56").
Average rainfall days in December
Glenmary, TN
- Average rainfall days in December: 12.8 days
The months with the highest number of rainy days are May and July (18.8 days).
The month with the least rainy days is November (9.9 days).
Average snowfall in December
Glenmary, TN
- Average snowfall in December: 2.4"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Glenmary, TN
- Average snowfall days in December: 6.3 days
The months with the highest number of snowfall days are January and February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Glenmary, TN
- Average daylight in December: 9h and 42min
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 24min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Glenmary, TN
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in December
Glenmary, TN
- Average UV index in December: 2
The months with the highest UV index are 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
Glenmary, TN
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is June (Cloud cover 35).
Average visibility in December
Glenmary, TN
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
