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 arrival of December signals a subtle shift in temperature, down from a refreshing 57°F (13.9°C) in November to a cool 50°F (10°C). In December, McHarg experiences an average nighttime temperature of 35.4°F (1.9°C).Humidity
With an average relative humidity of 81%, December is the most humid month.Rainfall
December is the month with the most rainfall. Rain falls for 14.5 days and accumulates 4.8" (122mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In December, it is snowing for 2.5 days. Throughout December, 1.26" (32mm) of snow is accumulated. In McHarg, during the entire year, snow falls for 14.7 days and aggregates up to 6.38" (162mm) of snow.Daylight
December has the shortest days of the year in McHarg, with an average of 9h and 48min of daylight.On the first day of December in McHarg, sunrise is at 7:27 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:36 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 5h of sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 2 during December translates into the following guidance:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Opt for tightly woven and loose clothing to enhance protection from the Sun. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What are the temperatures in McHarg in December?
What is the most humid month in McHarg?
What is the average humidity in December in McHarg?
What is the wettest month in McHarg?
How many days does it rain in December in McHarg?
How many days does it snow in December in McHarg?
What is the month with the shortest days in McHarg?
What is the average length of the day in December in McHarg?
When is the sunrise / sunset in December in McHarg?
What is the month with the least sunshine in McHarg?
How long on average sun shines in December in McHarg?
What are the months with the lowest UV index in McHarg?
What is the UV index reading in December in McHarg?
Average temperature in December
McHarg, TN
- Average high temperature in December: 50°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in December
McHarg, TN
- Average pressure in December: 30.15"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
McHarg, TN
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is February (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in December
McHarg, TN
- Average humidity in December: 81%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in December
McHarg, TN
- Average rainfall in December: 4.8"
The wettest month (with the highest rainfall) is December (4.8").
The driest month (with the least rainfall) is September (2.91").
Average rainfall days in December
McHarg, TN
- Average rainfall days in December: 14.5 days
The months with the highest number of rainy days are June and July (19.8 days).
The month with the least rainy days is November (11.3 days).
Average snowfall in December
McHarg, TN
- Average snowfall in December: 1.26"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
McHarg, TN
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (4.5 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
McHarg, TN
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
McHarg, TN
- Average sunshine days in December: 14.6 days
The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is June (8 days).
Average UV index in December
McHarg, 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
McHarg, TN
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in December
McHarg, TN
- Average visibility in December: 5mi
The month with the highest visibility is June (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (5mi).
McHarg, Tennessee, USA
Weather forecast for your location
2. Allow the app to use your location
