Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The arrival of December corresponds with a minor reduction in the average high-temperature, down from November's mild 58.5°F (14.7°C) to a fresh 50.2°F (10.1°C). Saint Joseph's temperature in December lowers to a consistent average of 37°F (2.8°C) during the nights.Humidity
March and December, with an average relative humidity of 79%, are the most humid months.Rainfall
In December, the rain falls for 12.1 days. Throughout December, 3.15" (80mm) of precipitation is accumulated. In Saint Joseph, during the entire year, the rain falls for 164 days and collects up to 37.56" (954mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Saint Joseph. In December, it is snowing for 1.2 days. Throughout December, 0.43" (11mm) of snow is accumulated. In Saint Joseph, during the entire year, snow falls for 7.7 days and aggregates up to 1.93" (49mm) of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:40 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 4:48 pm CST.
Sunshine
In Saint Joseph, the average sunshine in December is 4.7h.UV index
December is the month with the lowest UV index, 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: The daily high UV index of 2 during December translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What are the most humid months?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Saint Joseph have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Saint Joseph, TN
- Average high temperature in December: 50.2°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (46.6°F).
- Average low temperature in December: 37°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in December
Saint Joseph, 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
Saint Joseph, TN
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is February (8.7mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).
Average humidity in December
Saint Joseph, 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 (73%).
Average rainfall in December
Saint Joseph, TN
- Average rainfall in December: 3.15"
The wettest month (with the highest rainfall) is February (4.25").
The driest month (with the least rainfall) is November (2.32").
Average rainfall days in December
Saint Joseph, TN
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in December
Saint Joseph, TN
- Average snowfall in December: 0.43"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Saint Joseph, TN
- Average snowfall days in December: 1.2 days
The months with the highest number of snowfall days are January and February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Saint Joseph, TN
- Average daylight in December: 9h and 5min
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 4min
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 30min).
Average sunshine days in December
Saint Joseph, TN
- Average sunshine days in December: 17 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in December
Saint Joseph, TN
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Saint Joseph, TN
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Saint Joseph, TN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Saint Joseph, Tennessee, USA
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