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 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 shift from November to December coincides with a small decrease in the average high-temperature, down to a refreshing 63.5°F (17.5°C) from an agreeable 69.4°F (20.8°C). In the month of December, Saint Marks witnesses a consistent average low-temperature of 54.3°F (12.4°C).Humidity
With an average relative humidity of 78%, December is the most humid month.Rainfall
In Saint Marks, in December, during 9.8 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Saint Marks, during the entire year, the rain falls for 173 days and collects up to 43.74" (1111mm) of precipitation.Daylight
With an average of 10h and 12min of daylight, December has the shortest days of the year in Saint Marks, Florida.On the first day of December, sunrise is at 7:15 am and sunset at 5:36 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:47 pm EST.
Sunshine
The month with the least sunshine in Saint Marks, Florida, is December, with an average of 6h of sunshine.UV index
January and December, with an average maximum UV index of 4, are months with the lowest UV index in Saint Marks. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: An average UV index of 4 in December transforms into this advice:
Adopt protective measures - It is advised to guard against sun damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Frequently asked questions
What are the temperatures in Saint Marks in December?
What is the most humid month in Saint Marks?
What is the average humidity in December in Saint Marks?
How much does it rain in Saint Marks in December?
What is the month with the shortest days in Saint Marks?
What is the average length of the day in December in Saint Marks?
When is the sunrise / sunset in December in Saint Marks?
What is the month with the least sunshine in Saint Marks?
How many hours of sunshine does Saint Marks have in December?
What is the month with the lowest UV index in Saint Marks?
How high is the UV index in December in Saint Marks?
Average temperature in December
Saint Marks, FL
- Average high temperature in December: 63.5°F
The warmest months (with the highest average high temperature) are July and August (86.5°F).
The month with the lowest average high temperature is January (60.1°F).
- Average low temperature in December: 54.3°F
The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (49.6°F).
Average pressure in December
Saint Marks, FL
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in December
Saint Marks, FL
- Average wind speed in December: 10.5mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in December
Saint Marks, FL
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Saint Marks, FL
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is August (8.35").
The driest month (with the least rainfall) is November (1.46").
Average rainfall days in December
Saint Marks, FL
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is August (26.1 days).
The month with the least rainy days is November (7.4 days).
Average daylight in December /
Average sunshine in December
Saint Marks, FL
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 6h
The month with the most sunshine is May (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 6h).
Average sunshine days in December
Saint Marks, FL
- Average sunshine days in December: 19.8 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is August (2.7 days).
Average UV index in December
Saint Marks, FL
- Average UV index in December: 4
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in December
Saint Marks, FL
- Average cloud cover in December: 35
The month with the most cloud cover is December (Cloud cover 35).
The month with the least cloud cover is May (Cloud cover 21).
Average visibility in December
Saint Marks, 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).
Saint Marks, Florida, USA
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