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
As November makes way for December, Watertown's average high-temperature eases from a mild 56.7°F (13.7°C) to a chilly 48.9°F (9.4°C). During the nights in December, the temperature in Watertown, Tennessee, averages to a wintry 35.2°F (1.8°C).Humidity
The months with the highest humidity in Watertown, Tennessee, are March and December, with an average relative humidity of 79%.Rainfall
In December, the rain falls for 13.3 days. Throughout December, 3.03" (77mm) of precipitation is accumulated. Throughout the year, there are 182.4 rainfall days, and 39.8" (1011mm) of precipitation is accumulated.Snowfall
Months with snowfall in Watertown, Tennessee, are January through April, November and December. In Watertown, during December, snow falls for 2.6 days and regularly aggregates up to 0.55" (14mm) of snow. In Watertown, during the entire year, snow falls for 16.1 days and aggregates up to 3.66" (93mm) of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year in Watertown.On the first day of December in Watertown, sunrise is at 6:37 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 4:40 pm CST.
Sunshine
The average sunshine in December in Watertown is 4.7h.UV index
The months with the lowest UV index in Watertown 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 unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 suggests this advice:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
What are the temperatures in Watertown in December?
What are the most humid months in Watertown?
What is the average humidity in December in Watertown?
How many days does it rain in December in Watertown?
How much does it snow in Watertown in December?
What is the month with the shortest days in Watertown?
How many hours of daylight does Watertown have in December?
When are sunrise and sunset in December in Watertown?
How long on average sun shines in December in Watertown?
What is the month with the lowest UV index in Watertown?
What is the UV index reading in December in Watertown?
Average temperature in December
Watertown, TN
- Average high temperature in December: 48.9°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (43.9°F).
- Average low temperature in December: 35.2°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in December
Watertown, 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
Watertown, TN
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in December
Watertown, TN
- Average humidity in December: 79%
The months with the highest relative humidity are March and December (79%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in December
Watertown, TN
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is July (4.92").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in December
Watertown, TN
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (11 days).
Average snowfall in December
Watertown, TN
- Average snowfall in December: 0.55"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Watertown, TN
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is January (5.4 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
Watertown, TN
- Average daylight in December: 9h and 5min
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 48min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Watertown, TN
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in December
Watertown, 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
Watertown, 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
Watertown, 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).
Watertown, Tennessee, USA
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