December weather forecastMcCalla, AL
December
Weather in December
The first month of the winter, December, is still a cool month in McCalla, Alabama, with an average temperature fluctuating between 54.9°F (12.7°C) and 40.3°F (4.6°C).Temperature
Transition into December subtly marks a drop in the average high-temperature, moderately moving from an enjoyable 62.2°F (16.8°C) in November to a fresh 54.9°F (12.7°C). In December, the average low-temperature in McCalla records at a cold 40.3°F (4.6°C) during the nights.Humidity
December is the most humid month, with an average relative humidity of 80%.Rainfall
The month with the most rainfall is December, when the rain falls for 13.2 days and typically aggregates up to 4.13" (105mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In McCalla, in December, snow falls for 0.8 days, with typically accumulated 0.51" (13mm) of snow. In McCalla, during the entire year, snow falls for 4.1 days and aggregates up to 1.77" (45mm) of snow.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of the month, sunrise is at 6:34 am and sunset at 4:40 pm. On the last day of December, sunrise is at 6:51 am and sunset at 4:51 pm CST.
Sunshine
The months with the least sunshine are February and December, with an average of 4.8h of sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 2 translates into these guidelines:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
McCalla, AL
- Average high temperature in December: 54.9°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (51.3°F).
- Average low temperature in December: 40.3°F
The month with the highest average low temperature is August (71.6°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure in December
McCalla, AL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).
Average wind speed in December
McCalla, AL
- Average wind speed in December: 6.8mph
The windiest months (with the highest average wind speed) are February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in December
McCalla, 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
McCalla, AL
- Average rainfall in December: 4.13"
The wettest month (with the highest rainfall) is December (4.13").
The driest month (with the least rainfall) is October (2.24").
Average rainfall days in December
McCalla, AL
- Average rainfall days in December: 13.2 days
The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in December
McCalla, AL
- Average snowfall in December: 0.51"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
McCalla, AL
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is 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
McCalla, 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 48min
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: 4h and 48min).
Average sunshine days in December
McCalla, AL
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is July (8.3 days).
Average UV index in December
McCalla, AL
- Average UV index in December: 2
The months with the highest UV index are April, May, June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
McCalla, AL
- Average cloud cover in December: 48
The months with the most cloud cover are February and December (Cloud cover 48).
The months with the least cloud cover are June, September and October (Cloud cover 30).
Average visibility in December
McCalla, 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).
