December weather forecastCrystal River, FL
December
Weather in December
The first month of the winter, December, is still a pleasant month in Crystal River, Florida, with an average temperature varying between 54.7°F (12.6°C) and 69.4°F (20.8°C).Temperature
Crystal River marks the arrival of December with an average high-temperature of an agreeable 69.4°F (20.8°C), hardly different from November's 73.8°F (23.2°C). Crystal River observes an average nighttime low-temperature of 54.7°F (12.6°C) during the month of December.Humidity
In Crystal River, Florida, the average relative humidity in December is 77%.Rainfall
In Crystal River, during December, the rain falls for 8.8 days and regularly aggregates up to 2.72" (69mm) of precipitation. In Crystal River, during the entire year, the rain falls for 178.4 days and collects up to 34.06" (865mm) of precipitation.Snowfall
February through December are months without snowfall in Crystal River.Ocean temperature
In Crystal River, in December, the average water temperature is 73.4°F (23°C).Note: For someone not comfortable with cold, swimming in 73.4°F (23°C) waters might be a stretch. However, with favorable conditions like abundant sunshine, mild wind, and warm air temperatures, the experience can be improved. And while wetsuits are not a must, they can be considered.
Daylight
With an average of 10h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:06 am and sunset at 5:32 pm. On the last day of December, sunrise is at 7:23 am and sunset at 5:43 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 6.3h of sunshine.UV index
The average daily maximum UV index in December in Crystal River is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: During December, 5 as the daily maximum UV index converts into the following advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Crystal River, FL
- Average high temperature in December: 69.4°F
The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is January (65.3°F).
- Average low temperature in December: 54.7°F
The month with the highest average low temperature is August (77.2°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).
Average pressure in December
Crystal River, 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
Crystal River, FL
- Average wind speed in December: 6.8mph
The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in December
Crystal River, FL
- Average humidity in December: 77%
The month with the highest relative humidity is September (78%).
The months with the lowest relative humidity are January, March and May (73%).
Average rainfall in December
Crystal River, FL
- Average rainfall in December: 2.72"
The wettest month (with the highest rainfall) is August (5.51").
The driest month (with the least rainfall) is March (1.26").
Average rainfall days in December
Crystal River, FL
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is August (26.9 days).
The month with the least rainy days is November (8.7 days).
Average snowfall days in December
Crystal River, FL
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in December
Crystal River, FL
- Average sea temperature in December: 73°F
The best month for swimming (with the highest average sea temperature) is August (86°F).
The coldest months (with the lowest average sea temperature) are February and March (68°F).
Average daylight in December /
Average sunshine in December
Crystal River, 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: 6h and 18min
The month with the most sunshine is May (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in December
Crystal River, FL
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is August (2.1 days).
Average UV index in December
Crystal River, FL
- Average UV index in December: 5
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in December
Crystal River, FL
- Average cloud cover in December: 34
The months with the most cloud cover are February and December (Cloud cover 34).
The month with the least cloud cover is May (Cloud cover 24).
Average visibility in December
Crystal River, FL
- 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).
