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
With the onset of December, Waterville's climate undergoes a slight change as the average high-temperature moves from a refreshing 58.1°F (14.5°C) in November to a fresh 50.5°F (10.3°C). Waterville throughout December, records an average low-temperature of 36.1°F (2.3°C).Humidity
The most humid month is December, with an average relative humidity of 80%.Rainfall
In Waterville, during December, the rain falls for 11.4 days and regularly aggregates up to 2.36" (60mm) of precipitation. In Waterville, during the entire year, the rain falls for 148 days and collects up to 23.9" (607mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In December, it is snowing for 0.7 days. Throughout December, 0.24" (6mm) of snow is accumulated. Throughout the year, there are 5.2 snowfall days, and 1.77" (45mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:29 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:38 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5.1h of sunshine.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 2 in December transforms into the following instructions:
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. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Waterville, TN
- Average high temperature in December: 50.5°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 (46.4°F).
- Average low temperature in December: 36.1°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in December
Waterville, 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
Waterville, TN
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in December
Waterville, TN
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, July, August, September, October and November (75%).
Average rainfall in December
Waterville, TN
- Average rainfall in December: 2.36"
The wettest month (with the highest rainfall) is July (2.64").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in December
Waterville, TN
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in December
Waterville, TN
- Average snowfall in December: 0.24"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Waterville, TN
- Average snowfall days in December: 0.7 days
The month with the highest number of snowfall days is February (1.7 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
Waterville, 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: 5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in December
Waterville, TN
- Average sunshine days in December: 17.7 days
The months with the most sunshine days are October and November (21.2 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in December
Waterville, 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
Waterville, TN
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Waterville, TN
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, May and December (5mi).
Waterville, Tennessee, USA
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