December weather forecastOld Harmony, AL
December
Weather in December
December, the first month of the winter in Old Harmony, is still a cool month, with an average temperature varying between 38.8°F (3.8°C) and 53.6°F (12°C).Temperature
The beginning of December brings a slight decrease in the average high-temperature, transitioning from a refreshing 61.2°F (16.2°C) in November to a cool 53.6°F (12°C). Old Harmony records an average nighttime low-temperature of 38.8°F (3.8°C) throughout December.Humidity
December is the most humid month in Old Harmony, with an average relative humidity of 80%.Rainfall
December is the month with the most rainfall in Old Harmony. Rain falls for 13.8 days and accumulates 4.17" (106mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Old Harmony, in December, during 0.6 snowfall days, 0.43" (11mm) of snow is typically accumulated. In Old Harmony, during the entire year, snow falls for 4.2 days and aggregates up to 1.5" (38mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:31 am and sunset at 4:35 pm. On the last day of December, sunrise is at 6:49 am and sunset at 4:45 pm CST.
Sunshine
In Old Harmony, the average sunshine in December is 4.8h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. It's recommended to limit sun exposure when its radiation is at its peak during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Old Harmony, AL
- Average high temperature in December: 53.6°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 (49.6°F).
- Average low temperature in December: 38.8°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in December
Old Harmony, 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
Old Harmony, AL
- Average wind speed in December: 6.9mph
The windiest months (with the highest average wind speed) are January, February and March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Old Harmony, 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 (73%).
Average rainfall in December
Old Harmony, AL
- Average rainfall in December: 4.17"
The wettest month (with the highest rainfall) is December (4.17").
The driest months (with the least rainfall) are September and October (2.4").
Average rainfall days in December
Old Harmony, AL
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is July (21.2 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in December
Old Harmony, AL
- Average snowfall in December: 0.43"
The month with the highest snowfall is February (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Old Harmony, AL
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (1.7 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
Old Harmony, AL
- Average daylight in December: 9h and 54min
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 48min
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
Old Harmony, AL
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in December
Old Harmony, 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
Old Harmony, AL
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in December
Old Harmony, 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).
