December weather forecastShell Bluff, FL
December
Weather in December
December, the first month of the winter in Shell Bluff, is also an agreeable month, with an average temperature fluctuating between 54°F (12.2°C) and 70.7°F (21.5°C).Temperature
In December, Shell Bluff's weather conditions record an average high-temperature of a pleasant 70.7°F (21.5°C), demonstrating little divergence from the preceding month. During December, Shell Bluff's temperature falls to a steady low-temperature average of 54°F (12.2°C).Humidity
In Shell Bluff, the average relative humidity in December is 76%.Rainfall
In Shell Bluff, in December, during 9.5 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, in Shell Bluff, there are 151.1 rainfall days, and 17.99" (457mm) of precipitation is accumulated.Daylight
With an average of 10h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:03 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:38 pm EST.
Sunshine
With an average of 5.7h of sunshine, December has the least sunshine of the year.UV index
In Shell Bluff, the average daily maximum UV index in December is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 5 in December translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Shell Bluff, FL
- Average high temperature in December: 70.7°F
The warmest month (with the highest average high temperature) is August (92.3°F).
The month with the lowest average high temperature is January (66.4°F).
- Average low temperature in December: 54°F
The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (48.7°F).
Average pressure in December
Shell Bluff, FL
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in December
Shell Bluff, FL
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is July (4mph).
Average humidity in December
Shell Bluff, FL
- Average humidity in December: 76%
The months with the highest relative humidity are July, August and September (77%).
The month with the lowest relative humidity is March (71%).
Average rainfall in December
Shell Bluff, FL
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is July (2.68").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in December
Shell Bluff, FL
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is August (20.2 days).
The month with the least rainy days is November (8 days).
Average daylight in December /
Average sunshine in December
Shell Bluff, FL
- Average daylight in December: 10h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in December: 5h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
Shell Bluff, FL
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (8.6 days).
Average UV index in December
Shell Bluff, FL
- Average UV index in December: 5
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in December
Shell Bluff, FL
- Average cloud cover in December: 42
The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is May (Cloud cover 32).
Average visibility in December
Shell Bluff, FL
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).





