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
December brings a slight decrease in temperature, down from a mild 56.3°F (13.5°C) in November to a chilly 48.2°F (9°C). In Hillwood, the average nighttime temperature during December is an icy 34.7°F (1.5°C).Humidity
February, March and December, with an average relative humidity of 79%, are the most humid months.Rainfall
In Hillwood, in December, during 13.6 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. Throughout the year, there are 173.9 rainfall days, and 38.31" (973mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Hillwood, Tennessee, in December, snow falls for 2.6 days, with typically accumulated 0.51" (13mm) of snow. Throughout the year, in Hillwood, there are 13.7 snowfall days, and 2.99" (76mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 6:34 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 4:37 pm CST.
Sunshine
In December, the average sunshine is 4.7h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. When the Sun is at its strongest around midday, find shade and limit exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What are the most humid months in Hillwood?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December in Hillwood?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How long on average sun shines in December in Hillwood?
When is the lowest UV index?
How high is the UV index in December in Hillwood?
Average temperature in December
Hillwood, TN
- Average high temperature in December: 48.2°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure in December
Hillwood, TN
- Average pressure in December: 30.14"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
Hillwood, TN
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).
Average humidity in December
Hillwood, TN
- Average humidity in December: 79%
The months with the highest relative humidity are February, March and December (79%).
The month with the lowest relative humidity is November (75%).
Average rainfall in December
Hillwood, TN
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is February (4.09").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in December
Hillwood, TN
- Average rainfall days in December: 13.6 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is November (10.8 days).
Average snowfall in December
Hillwood, TN
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Hillwood, TN
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is January (4.6 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
Hillwood, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in December
Hillwood, TN
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is October (18.2 days).
The months with the least sunshine days are February and July (11.3 days).
Average UV index in December
Hillwood, 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
Hillwood, TN
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in December
Hillwood, TN
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are January, May, July, August and September (5mi).
Hillwood, Tennessee, USA
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