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
In McCosh Mill, entering December brings a subtle temperature decrement, reducing from November's refreshing 61.9°F (16.6°C) to a fresh 55.2°F (12.9°C). Throughout December, the average low-temperature records at a cold 40.3°F (4.6°C).Humidity
December is the most humid month, with an average relative humidity of 80%.Rainfall
In December, the rain falls for 14 days. Throughout December, 3.74" (95mm) of precipitation is accumulated. Throughout the year, in McCosh Mill, there are 181.7 rainfall days, and 39.06" (992mm) of precipitation is accumulated.Snowfall
January through March and December are months with snowfall in McCosh Mill. December is the first month it typically snows. Throughout December, in the average 0.6 snowfall days, it receives 0.35" (9mm) of snow. In McCosh Mill, during the entire year, snow falls for 3.5 days and aggregates up to 1.18" (30mm) of snow.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:26 am and sunset at 4:33 pm. On the last day of December, sunrise is at 6:43 am and sunset at 4:44 pm CST.
Sunshine
The months with the least sunshine are February and December, with an average of 5h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 3 translates into these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in McCosh Mill?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
When does it start to snow?
What is the month with the shortest days?
How many hours of daylight does McCosh Mill have in December?
When is the sunrise / sunset in December?
What are the months with the least sunshine?
How long on average sun shines in December in McCosh Mill?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
McCosh Mill, AL
- Average high temperature in December: 55.2°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (52°F).
- Average low temperature in December: 40.3°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).
Average pressure in December
McCosh Mill, AL
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
McCosh Mill, AL
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in December
McCosh Mill, 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 (72%).
Average rainfall in December
McCosh Mill, AL
- Average rainfall in December: 3.74"
The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is October (1.93").
Average rainfall days in December
McCosh Mill, AL
- Average rainfall days in December: 14 days
The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in December
McCosh Mill, AL
- Average snowfall in December: 0.35"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
McCosh Mill, AL
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is January (1.3 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
McCosh Mill, AL
- 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 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).
Average sunshine days in December
McCosh Mill, AL
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in December
McCosh Mill, AL
- Average UV index in December: 3
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, November and December (UV index 3).
Average cloud cover in December
McCosh Mill, AL
- Average cloud cover in December: 47
The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in December
McCosh Mill, AL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
McCosh Mill, Alabama, USA
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