This report describes the typical weather at the Hunter Aff (Savannah, Georgia, United States) weather station over the course of an average May. It is based on the historical records from 1975 to 2012. Earlier records are either unavailable or unreliable.
Savannah, 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 (58%), oceans and seas (21%), croplands (13%), lakes and rivers (4%), and grasslands (3%).
The month of May is characterized by rising daily high temperatures, with daily highs increasing from 81°F to 87°F over the course of the month, exceeding 93°F or dropping below 73°F only one day in ten.
Over the course of May, the length of the day is gradually increasing. The shortest day of the month is May 1 with 13:27 hours of daylight; the longest day is May 31 with 14:07 hours of daylight.
The earliest sunrise is at 6:19am on May 31; the latest sunset is at 8:26pm on May 31; the latest sunrise is at 6:38am on May 1; the earliest sunset is at 8:05pm on May 1.
Daylight saving time is observed in 2012 but it neither starts nor ends in May, so the entire month is in daylight time.
The median cloud cover ranges from 44% (partly cloudy) to 57% (partly cloudy). The trend is for the sky to be becoming cloudier with the median cloud cover increasing by 12% from the start to the end of the month.
On May 1, the clearest day of the month, the sky is clear, mostly clear, or partly cloudy 57% of the time, and overcast or mostly cloudy 40% of the time.
On May 31, the cloudiest day of the month, the sky is overcast, mostly cloudy, or partly cloudy 53% of the time, and clear or mostly clear 44% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around May 31, occurring in 50% of days. Precipitation is least likely around May 1, occurring in 38% of days.
Throughout May, the most common forms of precipitation are thunderstorms and light rain.
Thunderstorms are the most severe precipitation observed during 51% of those days with precipitation. They are most likely around May 31, when it is observed during 30% of all days.
Light rain is the most severe precipitation observed during 33% of those days with precipitation. It is most likely around May 2, when it is observed during 16% of all days.
Either snow is exceptionally unlikely to fall at this location in May or this station does not reliably report precipitation types.
The relative humidity typically ranges from 43% (comfortable) to 93% (very humid) over the course of a typical May, rarely dropping below 27% (dry) and reaching as high as 100% (very humid).
The air is driest around May 1, at which time the relative humidity drops below 52% (mildly humid) three days out of four; it is most humid around May 31, rising above 89% (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 May, the dew point typically varies from 52°F (very comfortable) to 71°F (very muggy) and is rarely below 39°F (dry) or above 76°F (very muggy).
Over the course of May typical wind speeds vary from 0 mph to 13 mph (calm to moderate breeze), rarely exceeding 18 mph (fresh breeze).
The highest average wind speed of 7 mph (light breeze) occurs around May 1, at which time the average daily maximum wind speed is 13 mph (moderate breeze).
The lowest average wind speed of 6 mph (light breeze) occurs around May 15, at which time the average daily maximum wind speed is 13 mph (moderate breeze).