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 beginning of December subtly marks a decrease in the average high-temperature, transitioning from a refreshing 57°F (13.9°C) in November to a frosty 48.4°F (9.1°C). In Westport, an average low-temperature of 36°F (2.2°C) is recorded during December nights.Humidity
The months with the highest humidity in Westport are March and December, with an average relative humidity of 79%.Rainfall
In Westport, in December, during 10.6 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. In Westport, Tennessee, during the entire year, the rain falls for 133.4 days and collects up to 17.05" (433mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Westport, during December, snow falls for 1.5 days and regularly aggregates up to 0.31" (8mm) of snow. Throughout the year, there are 9.1 snowfall days, and 1.5" (38mm) 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 in Westport, sunrise is at 6:45 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 4:49 pm CST.
Sunshine
In Westport, the average sunshine in December is 4.7h.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index in Westport. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the UV index of 2 transforms into the following advice:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Westport in December?
What is the most humid month in Westport?
What is the average humidity in December in Westport?
How much does it rain in Westport in December?
How many days does it snow in December in Westport?
What is the month with the shortest days in Westport?
How many hours of daylight does Westport have in December?
What time are sunrise and sunset in December in Westport?
How long on average sun shines in December in Westport?
What is the month with the lowest UV index in Westport?
What is the UV index reading in December in Westport?
Average temperature in December
Westport, TN
- Average high temperature in December: 48.4°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in December: 36°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in December
Westport, TN
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Westport, TN
- Average wind speed in December: 8mph
The windiest months (with the highest average wind speed) are February and April (8.5mph).
The calmest month (with the lowest average wind speed) is July (5mph).
Average humidity in December
Westport, 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 (72%).
Average rainfall in December
Westport, TN
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is September (0.71").
Average rainfall days in December
Westport, TN
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is November (7 days).
Average snowfall in December
Westport, TN
- Average snowfall in December: 0.31"
The month with the highest snowfall is March (0.43").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Westport, TN
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is January (2.8 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
Westport, 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
Westport, TN
- Average sunshine days in December: 17.8 days
The months with the most sunshine days are October and November (20.4 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in December
Westport, TN
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Westport, TN
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Westport, TN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Westport, Tennessee, USA
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