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 onset of December is marked by a minor decrease in temperature, transitioning from a moderate 57.7°F (14.3°C) in November to a chilly 48.9°F (9.4°C). In Porters Grove, the average temperature during the nights of December drops to an icy 36.5°F (2.5°C).Humidity
The average relative humidity in December is 78%.Rainfall
In Porters Grove, in December, it is raining for 11.7 days, with typically 2.99" (76mm) of accumulated precipitation. Throughout the year, there are 154.3 rainfall days, and 31.57" (802mm) of precipitation is accumulated.Snowfall
Months with snowfall in Porters Grove, Tennessee, are January through March, November and December. In Porters Grove, in December, during 0.9 snowfall days, 0.35" (9mm) of snow is typically accumulated. In Porters Grove, during the entire year, snow falls for 8.1 days and aggregates up to 3.11" (79mm) of snow.Daylight
The month with the shortest days in Porters Grove, Tennessee, is December, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 6:48 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 4:52 pm CST.
Sunshine
In December, the average sunshine in Porters Grove, Tennessee, is 4.8h.UV index
February and December, with an average maximum UV index of 2, are months with the lowest UV index in Porters Grove. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Around midday, solar radiation is most harmful; hence, exposure should be limited. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
What is the temperature in December in Porters Grove?
What is the average humidity in December in Porters Grove?
How many days does it rain in December in Porters Grove?
How many days does it snow in December in Porters Grove?
What is the month with the shortest days in Porters Grove?
How many hours of daylight does Porters Grove have in December?
When is the sunrise / sunset in December in Porters Grove?
How many hours of sunshine does Porters Grove have in December?
When is the lowest UV index in Porters Grove?
How high is the UV index in December in Porters Grove?
Average temperature in December
Porters Grove, TN
- Average high temperature in December: 48.9°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 (45°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in December
Porters Grove, 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 (29.95"Hg).
Average wind speed in December
Porters Grove, TN
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest month (with the lowest average wind speed) is July (5.3mph).
Average humidity in December
Porters Grove, TN
- Average humidity in December: 78%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Porters Grove, TN
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is February (3.5").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in December
Porters Grove, TN
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in December
Porters Grove, TN
- Average snowfall in December: 0.35"
The month with the highest snowfall is March (1.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Porters Grove, TN
- Average snowfall days in December: 0.9 days
The months with the highest number of snowfall days are January and February (2.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Porters Grove, 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 5min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Porters Grove, TN
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (12 days).
Average UV index in December
Porters Grove, TN
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are February and December (UV index 2).
Average cloud cover in December
Porters Grove, TN
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in December
Porters Grove, 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).
Porters Grove, Tennessee, USA
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