December weather forecastGriffintown, TN
December
Weather in December
The first month of the winter, December, is still a chilly month in Griffintown, Tennessee, with an average temperature varying between 35.4°F (1.9°C) and 48.9°F (9.4°C).Temperature
December's onset introduces a mild reduction in the average high-temperature, from a mild 57°F (13.9°C) in November to a frosty 48.9°F (9.4°C). During the month of December, an average temperature of 35.4°F (1.9°C) is noted during the nights.Humidity
March and December, with an average relative humidity of 79%, are the most humid months.Rainfall
In Griffintown, in December, it is raining for 10.9 days, with typically 2.01" (51mm) of accumulated precipitation. Throughout the year, there are 158.3 rainfall days, and 26.57" (675mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 2.8 days and typically aggregates up to 0.79" (20mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 6:41 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 4:44 pm CST.
Sunshine
In December, the average sunshine is 4.7h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Enhance your sun protection with tightly woven, yet airy clothing. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Griffintown, TN
- Average high temperature in December: 48.9°F
The warmest month (with the highest average high temperature) is July (87.8°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 (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Griffintown, 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
Griffintown, TN
- Average wind speed in December: 7.6mph
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
Griffintown, 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
Griffintown, TN
- Average rainfall in December: 2.01"
The wettest month (with the highest rainfall) is July (3.5").
The driest month (with the least rainfall) is November (1.42").
Average rainfall days in December
Griffintown, TN
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in December
Griffintown, TN
- Average snowfall in December: 0.79"
The month with the highest snowfall is December (0.79").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Griffintown, TN
- Average snowfall days in December: 2.8 days
The month with the highest number of snowfall days is February (4 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
Griffintown, 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 42min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Griffintown, TN
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in December
Griffintown, 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
Griffintown, TN
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Griffintown, TN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
