This report describes the typical weather at the St. Petersburg-Clearwater International Airport (St. Petersburg, Florida, United States) weather station over the course of an average November. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
St. Petersburg, Florida has a warm humid temperate climate with hot summers and no dry season. The area within 25 mi of this station is covered by oceans and seas (52%), croplands (31%), and built-up areas (14%).
The month of November is characterized by falling daily high temperatures, with daily highs decreasing from 80°F to 75°F over the course of the month, exceeding 86°F or dropping below 65°F only one day in ten.
Over the course of November, the length of the day is gradually decreasing. The shortest day of the month is November 30 with 10:30 hours of daylight; the longest day is November 1 with 11:04 hours of daylight.
The earliest sunrise is at 6:44am on November 4; the latest sunset is at 6:46pm on November 1; the latest sunrise is at 7:44am on November 3; the earliest sunset is at 5:35pm on November 26.
Daylight savings time (DST) ends at 1:00am on November 4, 2012, shifting sunrise and sunset to an hour earlier.
The median cloud cover ranges from 31% (mostly clear) to 39% (mostly clear). The trend is for the sky to be becoming cloudier with the median cloud cover increasing by 7% from the start to the end of the month.
On November 15, a representative day, the sky is clear or mostly clear 50% of the time, partly cloudy 16% of the time, and mostly cloudy or overcast 34% of the time.
The average probability that some form of precipitation will be observed in a given day is 24%, with little variation over the course of the month.
Throughout November, the most common forms of precipitation are light rain, moderate rain, and thunderstorms.
Light rain is the most severe precipitation observed during 45% of those days with precipitation. It is most likely around November 26, when it is observed during 12% of all days.
Moderate rain is the most severe precipitation observed during 25% of those days with precipitation. It is most likely around November 28, when it is observed during 7% of all days.
Thunderstorms are the most severe precipitation observed during 16% of those days with precipitation. They are most likely around November 1, when it is observed during 6% of all days.
Either snow is exceptionally unlikely to fall at this location in November or this station does not reliably report precipitation types.
The relative humidity typically ranges from 53% (mildly humid) to 93% (very humid) over the course of a typical November, rarely dropping below 38% (comfortable) and reaching as high as 100% (very humid).
The air is driest around November 15, at which time the relative humidity drops below 61% (mildly humid) three days out of four; it is most humid around November 23, 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 November, the dew point typically varies from 52°F (very comfortable) to 67°F (muggy) and is rarely below 35°F (dry) or above 75°F (very muggy).
Over the course of November typical wind speeds vary from 3 mph to 15 mph (light air to moderate breeze), rarely exceeding 21 mph (fresh breeze).
The highest average wind speed of 9 mph (gentle breeze) occurs around November 6, at which time the average daily maximum wind speed is 15 mph (moderate breeze).
The lowest average wind speed of 9 mph (gentle breeze) occurs around November 27, at which time the average daily maximum wind speed is 14 mph (moderate breeze).