December weather forecastSisco, FL
December
Weather in December
December, the first month of the winter in Sisco, is still a pleasant month, with temperature in the range of an average low of 54°F (12.2°C) and an average high of 70.7°F (21.5°C).Temperature
Sisco ushers in December with an average high-temperature of a pleasant 70.7°F (21.5°C), showing a close resemblance to the previous month. An average low-temperature of 54°F (12.2°C) is recorded during the nights in December in Sisco.Humidity
In December, the average relative humidity in Sisco is 76%.Rainfall
In Sisco, in December, during 9.5 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In Sisco, during the entire year, the rain falls for 151.1 days and collects up to 17.99" (457mm) of precipitation.Daylight
With an average of 10h and 18min of daylight, December has the shortest days of the year in Sisco.On the first day of the month, sunrise is at 7:04 am and sunset at 5:27 pm. On the last day of December, in Sisco, sunrise is at 7:21 am and sunset at 5:38 pm EST.
Sunshine
December has the least sunshine of the year in Sisco, with an average of 5.7h of sunshine.UV index
The average daily maximum UV index in December is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The daily maximum UV index of 5 in December interprets into the following advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sisco, 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
Sisco, 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
Sisco, 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
Sisco, 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
Sisco, 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
Sisco, 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
Sisco, 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
Sisco, 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
Sisco, 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
Sisco, 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
Sisco, 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).





