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
December brings a minor shift in the average high-temperature, adjusting from a moderate 59.9°F (15.5°C) in November to a cool 52.5°F (11.4°C). December is noted for a mean low-temperature of 38.3°F (3.5°C).Humidity
December is the most humid month, with an average relative humidity of 79%.Rainfall
The month with the most rainfall in Hartselle is December, when the rain falls for 13.5 days and typically aggregates up to 4.25" (108mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Hartselle, in December, during 1.4 snowfall days, 0.31" (8mm) of snow is typically accumulated. In Hartselle, during the entire year, snow falls for 6.8 days and aggregates up to 1.97" (50mm) of snow.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:36 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 4:48 pm CST.
Sunshine
In December, the average sunshine is 4.7h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | 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 rainiest month?
How many days does it rain in December?
How many days does it snow in December?
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 many hours of sunshine does Hartselle have in December?
What are the months with the lowest UV index?
What is the UV index intensity in December in Hartselle?
Average temperature in December
Hartselle, AL
- Average high temperature in December: 52.5°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in December: 38.3°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (33.6°F).
Average pressure in December
Hartselle, 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
Hartselle, AL
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in December
Hartselle, AL
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Hartselle, AL
- Average rainfall in December: 4.25"
The wettest month (with the highest rainfall) is December (4.25").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in December
Hartselle, AL
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in December
Hartselle, AL
- Average snowfall in December: 0.31"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Hartselle, AL
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is February (2.1 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
Hartselle, AL
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Hartselle, AL
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in December
Hartselle, AL
- 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 and December (UV index 2).
Average cloud cover in December
Hartselle, AL
- 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 30).
Average visibility in December
Hartselle, AL
- 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).
Hartselle, Alabama, USA
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