December weather forecastPorter, TN
December
Weather in December
December, the first month of the winter in Porter, is still a chilly month, with an average temperature ranging between max 48.7°F (9.3°C) and min 35.4°F (1.9°C).Temperature
The commencement of December includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderate 57°F (13.9°C) in November to a frosty 48.7°F (9.3°C). The average temperature during December nights in Porter is registered at a cold 35.4°F (1.9°C).Humidity
March and December, with an average relative humidity of 79%, are the most humid months in Porter.Rainfall
In Porter, in December, it is raining for 8.1 days, with typically 0.71" (18mm) of accumulated precipitation. In Porter, during the entire year, the rain falls for 118.2 days and collects up to 10.83" (275mm) of precipitation.Snowfall
Months with snowfall in Porter are January through March, November and December. The months with the most snowfall in Porter are January, February and December, with an average 0.2" (5mm) of accumulated snow.Daylight
The month with the shortest days in Porter is December, with an average of 9h and 48min of daylight.On the first day of December in Porter, sunrise is at 6:41 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 4:45 pm CST.
Sunshine
In December, the average sunshine in Porter, Tennessee, is 4.6h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Porter. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 suggests this advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Porter, TN
- Average high temperature in December: 48.7°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Porter, 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
Porter, TN
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in December
Porter, 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 (74%).
Average rainfall in December
Porter, TN
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is July (1.38").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in December
Porter, TN
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (6 days).
Average snowfall in December
Porter, TN
- Average snowfall in December: 0.2"
The months with the highest snowfall are January, February and December (0.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Porter, TN
- Average snowfall days in December: 1.6 days
The month with the highest number of snowfall days is February (3 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
Porter, TN
- Average daylight in December: 9h and 48min
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 36min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Porter, TN
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (11.9 days).
Average UV index in December
Porter, 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 and December (UV index 2).
Average cloud cover in December
Porter, TN
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Porter, TN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).
