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
The arrival of December correlates with a minor temperature reduction, down from November's comfortable 61.7°F (16.5°C) to a fresh 54.5°F (12.5°C). The average low-temperature of 39.2°F (4°C) is witnessed during December.Humidity
December is the most humid month in Riverside, with an average relative humidity of 80%.Rainfall
In December, the rain falls for 12.1 days. Throughout December, 2.52" (64mm) of precipitation is accumulated. Throughout the year, there are 155.6 rainfall days, and 25.63" (651mm) of precipitation is accumulated.Snowfall
January, February and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.7 snowfall days, it receives 0.55" (14mm) of snow. Throughout the year, there are 3.9 snowfall days, and 1.5" (38mm) of snow is accumulated.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:31 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 4:47 pm CST.
Sunshine
In Riverside, the average sunshine in December is 5h.UV index
In December, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 3 in December translates into the following instructions:
Adopt protective measures - It is advised to guard against sun damage. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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?
How much does it rain in December?
When does it start snowing in Riverside?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Riverside have in December?
What is the UV index reading in December?
Average temperature in December
Riverside, 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: 39.2°F
The months with the highest average low temperature are July and August (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).
Average pressure in December
Riverside, 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
Riverside, AL
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in December
Riverside, 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
Riverside, AL
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is October (1.38").
Average rainfall days in December
Riverside, AL
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is November (8 days).
Average snowfall in December
Riverside, AL
- Average snowfall in December: 0.55"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Riverside, AL
- Average snowfall days in December: 0.7 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 May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Riverside, 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: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Riverside, AL
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is July (9 days).
Average UV index in December
Riverside, AL
- Average UV index in December: 3
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Riverside, 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 and September (Cloud cover 30).
Average visibility in December
Riverside, 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).
Riverside, Alabama, USA
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