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
MacMillan's December weather features a light decline in high-temperatures, reducing from a refreshing 66.2°F (19°C) in November to a mild 59.2°F (15.1°C). In MacMillan, the average nighttime temperature during December is a chilly 43°F (6.1°C).Humidity
The most humid month is December, with an average relative humidity of 80%.Rainfall
The month with the most rainfall is December, when the rain falls for 13 days and typically aggregates up to 3.94" (100mm) of precipitation.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows in MacMillan. Throughout December, in the average 0.3 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 1.5 snowfall days, and 0.67" (17mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 10h and 6min of daylight.On the first day of December, sunrise is at 6:33 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 4:56 pm CST.
Sunshine
The average sunshine in December is 5h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the UV index of 3 transforms into the following advice:
Undertake protective steps - Preventing sun damage is advised. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the most humid month?
What is the average humidity in December?
What is the wettest month?
How many days does it rain in December?
When does it start snowing?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index in MacMillan?
How high is the UV index in December?
Average temperature in December
MacMillan, AL
- Average high temperature in December: 59.2°F
The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (55.9°F).
- Average low temperature in December: 43°F
The months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in December
MacMillan, AL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in December
MacMillan, AL
- Average wind speed in December: 6.4mph
The windiest month (with the highest average wind speed) is February (6.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in December
MacMillan, AL
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
MacMillan, AL
- Average rainfall in December: 3.94"
The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is November (1.93").
Average rainfall days in December
MacMillan, AL
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in December
MacMillan, AL
- Average snowfall in December: 0.08"
The month with the highest snowfall is March (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
MacMillan, AL
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is January (0.6 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
MacMillan, AL
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- 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 February (Average sunshine: 4h and 54min).
Average sunshine days in December
MacMillan, AL
- Average sunshine days in December: 16.3 days
The months with the most sunshine days are October and November (20.5 days).
The month with the least sunshine days is July (6.6 days).
Average UV index in December
MacMillan, AL
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
MacMillan, AL
- Average cloud cover in December: 49
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in December
MacMillan, AL
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, June, October and November (6mi).
The months with the lowest visibility are May, July, August, September and December (5mi).
MacMillan, Alabama, USA
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