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
Harpersville records a mild change in average high-temperature during December, easing from a comfortable 62.1°F (16.7°C) in November to a cool 54.5°F (12.5°C). In December, Harpersville's temperature tends to fall to an average low of 40.1°F (4.5°C) during the night.Humidity
With an average relative humidity of 80%, December is the most humid month.Rainfall
In December, the rain falls for 13.8 days. Throughout December, 3.98" (101mm) of precipitation is accumulated. Throughout the year, there are 177.1 rainfall days, and 41.06" (1043mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Harpersville, in December, snow falls for 0.5 days, with typically accumulated 0.47" (12mm) of snow. In Harpersville, Alabama, during the entire year, snow falls for 3.5 days and aggregates up to 1.77" (45mm) 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 6:32 am and sunset at 4:38 pm. On the last day of December, sunrise is at 6:49 am and sunset at 4:48 pm CST.
Sunshine
In December, the average sunshine is 4.9h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Harpersville in December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Harpersville have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Harpersville have in December?
When is the lowest UV index in Harpersville?
How high is the UV index in December?
Average temperature in December
Harpersville, AL
- Average high temperature in December: 54.5°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (50.9°F).
- Average low temperature in December: 40.1°F
The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in December
Harpersville, 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
Harpersville, AL
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in December
Harpersville, 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
Harpersville, AL
- Average rainfall in December: 3.98"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is October (2.28").
Average rainfall days in December
Harpersville, AL
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is July (21.7 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in December
Harpersville, AL
- Average snowfall in December: 0.47"
The month with the highest snowfall is January (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Harpersville, AL
- Average snowfall days in December: 0.5 days
The months with the highest number of snowfall days are January and February (1.3 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
Harpersville, 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: 4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Harpersville, AL
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is July (6.9 days).
Average UV index in December
Harpersville, 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 and December (UV index 3).
Average cloud cover in December
Harpersville, AL
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June, September and October (Cloud cover 31).
Average visibility in December
Harpersville, 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).
Harpersville, Alabama, USA
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