This report describes the typical weather at the Brunswick Golden Isles Airport (Brunswick, Georgia, United States) weather station over the course of an average December. It is based on the historical records from 1998 to 2012. Earlier records are either unavailable or unreliable.
Brunswick, Georgia has a warm humid temperate climate with hot summers and no dry season. The area within 25 mi of this station is covered by forests (56%), oceans and seas (31%), croplands (7%), and lakes and rivers (4%).
The month of December is characterized by falling daily high temperatures, with daily highs ranging from 68°F to 63°F over the course of the month, exceeding 77°F or dropping below 50°F only one day in ten.
Over the course of December, the length of the day is essentially constant. The shortest day of the month is December 26 with 10:08 hours of daylight; the longest day is December 1 with 10:16 hours of daylight.
The earliest sunrise is at 7:07am on December 1; the latest sunset is at 5:34pm on December 31; the latest sunrise is at 7:25am on December 31; the earliest sunset is at 5:23pm on December 3.
Daylight saving time is observed in 2012 but it neither starts nor ends in December, so the entire month is in standard time.
The median cloud cover is 36% (mostly clear) and does not vary substantially over the course of the month.
On December 16, a representative day, the sky is clear or mostly clear 52% of the time, partly cloudy 7% of the time, and mostly cloudy or overcast 40% of the time.
The average probability that some form of precipitation will be observed in a given day is 1%, with little variation over the course of the month.
Throughout December, the most common forms of precipitation are thunderstorms and light rain.
Thunderstorms are the most severe precipitation observed during 78% of those days with precipitation. They are most likely around December 22, when it is observed during 1% of all days.
Light rain is the most severe precipitation observed during 20% of those days with precipitation. It is most likely around December 28, when it is observed during 1% of all days.
Either snow is exceptionally unlikely to fall at this location in December or this station does not reliably report precipitation types.
The relative humidity typically ranges from 53% (mildly humid) to 98% (very humid) over the course of a typical December, rarely dropping below 31% (comfortable) and reaching as high as 100% (very humid).
The air is driest around December 30, at which time the relative humidity drops below 64% (mildly humid) three days out of four; it is most humid around December 1, rising above 99% (very humid) three days out of four.
Dew point is often a better measure of how comfortable a person will find the weather than relative humidity because it more directly relates to whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid.
Over the course of a typical December, the dew point typically varies from 36°F (dry) to 57°F (comfortable) and is rarely below 20°F (dry) or above 69°F (muggy).
The time of the month between December 1 and December 31 is the most comfortable, with dew points that are neither too dry nor too muggy.
Over the course of December typical wind speeds vary from 0 mph to 12 mph (calm to gentle breeze), rarely exceeding 18 mph (moderate breeze).
The highest average wind speed of 5 mph (light breeze) occurs around December 19, at which time the average daily maximum wind speed is 12 mph (gentle breeze).
The lowest average wind speed of 5 mph (light breeze) occurs around December 1, at which time the average daily maximum wind speed is 11 mph (gentle breeze).