December weather forecastGrady, TN
December
Weather in December
The first month of the winter, December, is still a cool month in Grady, Tennessee, with temperature in the range of an average high of 50.4°F (10.2°C) and an average low of 36°F (2.2°C).Temperature
December's arrival signals a moderate reduction in the average high-temperature, easing from a mild 57.6°F (14.2°C) in November to a fresh 50.4°F (10.2°C). During December, Grady's temperature falls to a steady low-temperature average of 36°F (2.2°C).Humidity
December is the most humid month in Grady, with an average relative humidity of 79%.Rainfall
In Grady, in December, it is raining for 13.4 days, with typically 2.99" (76mm) of accumulated precipitation. Throughout the year, there are 170.1 rainfall days, and 33.23" (844mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 2.3 days. Throughout December, 0.39" (10mm) of snow is accumulated. Throughout the year, there are 14.2 snowfall days, and 2.36" (60mm) of snow is accumulated.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year in Grady, Tennessee.On the first day of December in Grady, sunrise is at 7:29 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:36 pm EST.
Sunshine
January and December, with an average of 5.1h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index in Grady are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grady, TN
- Average high temperature in December: 50.4°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in December: 36°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Grady, TN
- Average pressure in December: 30.15"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
Grady, TN
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in December
Grady, TN
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are August, October and November (75%).
Average rainfall in December
Grady, TN
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is July (3.94").
The driest months (with the least rainfall) are September and November (1.89").
Average rainfall days in December
Grady, TN
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in December
Grady, TN
- Average snowfall in December: 0.39"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Grady, TN
- Average snowfall days in December: 2.3 days
The month with the highest number of snowfall days is January (4.6 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
Grady, 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: 5h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Grady, TN
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in December
Grady, 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, February and December (UV index 2).
Average cloud cover in December
Grady, TN
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Grady, TN
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
