December weather forecastDyer, TN
December
Weather in December
The first month of the winter, December, is still a chilly month in Dyer, Tennessee, with an average temperature varying between 48°F (8.9°C) and 36°F (2.2°C).Temperature
The shift from November to December involves a decrease in the average high-temperature, from a moderate 57.4°F (14.1°C) to a chilly 48°F (8.9°C). Dyer, during the month of December, experiences an average low-temperature of 36°F (2.2°C).Humidity
In Dyer, the average relative humidity in December is 78%.Rainfall
In Dyer, during December, the rain falls for 12.4 days and regularly aggregates up to 3.39" (86mm) of precipitation. In Dyer, during the entire year, the rain falls for 161.7 days and collects up to 38.46" (977mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Dyer, in December, during 0.8 snowfall days, 0.59" (15mm) of snow is typically accumulated. Throughout the year, there are 7.6 snowfall days, and 4.69" (119mm) 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 6:48 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 4:52 pm CST.
Sunshine
In December, the average sunshine is 4.8h.UV index
The months with the lowest UV index are February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The average daily UV index of 2 in December transforms into the following instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Dyer, TN
- Average high temperature in December: 48°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (44.1°F).
- Average low temperature in December: 36°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 (30.6°F).
Average pressure in December
Dyer, 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
Dyer, TN
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in December
Dyer, TN
- Average humidity in December: 78%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Dyer, TN
- Average rainfall in December: 3.39"
The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in December
Dyer, TN
- Average rainfall days in December: 12.4 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is October (10 days).
Average snowfall in December
Dyer, TN
- Average snowfall in December: 0.59"
The month with the highest snowfall is March (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Dyer, TN
- Average snowfall days in December: 0.8 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
Dyer, 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 48min
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
Dyer, TN
- Average sunshine days in December: 17 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in December
Dyer, TN
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are February and December (UV index 2).
Average cloud cover in December
Dyer, 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
Dyer, 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).
