December weather forecastMonterey, TN
December
Weather in December
December, the first month of the winter in Monterey, is still a chilly month, with an average temperature varying between 47.5°F (8.6°C) and 34.2°F (1.2°C).Temperature
The start of December signals a gentle decrease in the average high-temperature, transitioning from a refreshing 55.4°F (13°C) in November to a chilly 47.5°F (8.6°C). Monterey throughout December, records an average low-temperature of 34.2°F (1.2°C).Humidity
The months with the highest humidity are March and December, with an average relative humidity of 80%.Rainfall
In Monterey, in December, it is raining for 11.8 days, with typically 3.11" (79mm) of accumulated precipitation. Throughout the year, there are 165.7 rainfall days, and 36.93" (938mm) of precipitation is accumulated.Snowfall
Months with snowfall in Monterey are January through April, October through December. In Monterey, during December, snow falls for 3.5 days and regularly aggregates up to 1.34" (34mm) of snow. Throughout the year, in Monterey, there are 19.8 snowfall days, and 7.56" (192mm) 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 6:34 am and sunset at 4:26 pm. On the last day of December, in Monterey, sunrise is at 6:51 am and sunset at 4:36 pm CST.
Sunshine
The average sunshine in December in Monterey is 4.7h.UV index
The months with the lowest UV index in Monterey are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. It's recommended to limit sun exposure when its radiation is at its peak during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Monterey, TN
- Average high temperature in December: 47.5°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (43°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in December
Monterey, 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 (29.97"Hg).
Average wind speed in December
Monterey, TN
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Monterey, TN
- Average humidity in December: 80%
The months with the highest relative humidity are March and December (80%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in December
Monterey, TN
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is February (4.37").
The driest month (with the least rainfall) is November (2.09").
Average rainfall days in December
Monterey, TN
- Average rainfall days in December: 11.8 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in December
Monterey, TN
- Average snowfall in December: 1.34"
The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Monterey, TN
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (5.6 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
Monterey, 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 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days in December
Monterey, TN
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in December
Monterey, 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
Monterey, TN
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Monterey, TN
- Average visibility in December: 6mi
The months with the highest visibility are February, April, June, November and December (6mi).
The months with the lowest visibility are January, March, May, July, August, September and October (5mi).





