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
Rockwood's weather subtly changes with the onset of December, barely falling from a mild 59.5°F (15.3°C) in November to a fresh 51.4°F (10.8°C). During December, Rockwood records an average temperature of 37.9°F (3.3°C) at night.Humidity
The most humid month in Rockwood is December, with an average relative humidity of 80%.Rainfall
In Rockwood, in December, it is raining for 13 days, with typically 4.13" (105mm) of accumulated precipitation. In Rockwood, during the entire year, the rain falls for 176 days and collects up to 41.97" (1066mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Rockwood. In Rockwood, Alabama, in December, during 1.5 snowfall days, 0.35" (9mm) of snow is typically accumulated. Throughout the year, there are 7.2 snowfall days, and 2.05" (52mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of December in Rockwood, sunrise is at 6:40 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 4:51 pm CST.
Sunshine
In Rockwood, Alabama, the average sunshine in December is 4.7h.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index in Rockwood. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The UV index of 2 in December translates into these instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the usual temperature for Rockwood in December?
What is the most humid month in Rockwood?
What is the average humidity in December in Rockwood?
How much does it rain in Rockwood in December?
How many days does it snow in December in Rockwood?
What is the month with the shortest days in Rockwood?
What is the average length of the day in December in Rockwood?
When are sunrise and sunset in December in Rockwood?
How many hours of sunshine does Rockwood have in December?
When is the lowest UV index in Rockwood?
How high is the UV index in December in Rockwood?
Average temperature in December
Rockwood, AL
- Average high temperature in December: 51.4°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 (47.8°F).
- Average low temperature in December: 37.9°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 (33.1°F).
Average pressure in December
Rockwood, AL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Rockwood, AL
- Average wind speed in December: 7.7mph
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
Rockwood, 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
Rockwood, AL
- Average rainfall in December: 4.13"
The wettest month (with the highest rainfall) is February (4.57").
The driest month (with the least rainfall) is November (2.44").
Average rainfall days in December
Rockwood, AL
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in December
Rockwood, AL
- Average snowfall in December: 0.35"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Rockwood, AL
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.2 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
Rockwood, 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 months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Rockwood, AL
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Rockwood, AL
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Rockwood, AL
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 31).
Average visibility in December
Rockwood, AL
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, May and July (5mi).
Rockwood, Alabama, USA
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