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 in McDonough is marked by a minor decrease in temperature, transitioning from a comfortable 62.2°F (16.8°C) in November to a fresh 55°F (12.8°C). In McDonough, the nighttime temperature averages to an icy 40.3°F (4.6°C) during December.Humidity
With an average relative humidity of 77%, December is the most humid month in McDonough.Rainfall
In December, in McDonough, the rain falls for 13.2 days. Throughout December, 3.78" (96mm) of precipitation is accumulated. In McDonough, Georgia, during the entire year, the rain falls for 179.5 days and collects up to 40.08" (1018mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In December, in McDonough, it is snowing for 0.3 days. Throughout December, 0.08" (2mm) of snow is accumulated. In McDonough, during the entire year, snow falls for 2.7 days and aggregates up to 1.02" (26mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 7:23 am and sunset at 5:28 pm. On the last day of December, sunrise is at 7:40 am and sunset at 5:39 pm EST.
Sunshine
The month with the least sunshine in McDonough is December, with an average of 5.1h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 3 in December translates into these instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Stay sun-safe with clothing that is both closely woven and worn loosely. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
What are the temperatures in McDonough in December?
What is the most humid month in McDonough?
What is the average humidity in December in McDonough?
How many days does it rain in December in McDonough?
How many days does it snow in December in McDonough?
What is the month with the shortest days in McDonough?
What is the average length of the day in December in McDonough?
When is the sunrise / sunset in December in McDonough?
What is the month with the least sunshine in McDonough?
How many hours of sunshine does McDonough have in December?
What are the months with the lowest UV index in McDonough?
What is the UV index reading in December in McDonough?
Average temperature in December
McDonough, GA
- Average high temperature in December: 55°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (51.6°F).
- Average low temperature in December: 40.3°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).
Average pressure in December
McDonough, GA
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
McDonough, GA
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
McDonough, GA
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are October and November (72%).
Average rainfall in December
McDonough, GA
- Average rainfall in December: 3.78"
The wettest month (with the highest rainfall) is August (5.24").
The driest month (with the least rainfall) is October (2.17").
Average rainfall days in December
McDonough, GA
- Average rainfall days in December: 13.2 days
The month with the highest number of rainy days is July (22.3 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in December
McDonough, GA
- Average snowfall in December: 0.08"
The month with the highest snowfall is January (0.39").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
McDonough, GA
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
McDonough, GA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 5h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in December
McDonough, GA
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (7.1 days).
Average UV index in December
McDonough, GA
- Average UV index in December: 3
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
McDonough, GA
- Average cloud cover in December: 45
The months with the most cloud cover are February and December (Cloud cover 45).
The months with the least cloud cover are June and October (Cloud cover 31).
Average visibility in December
McDonough, GA
- 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).
McDonough, Georgia, USA
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