This report describes the typical weather at the Riga International Airport (Riga, Latvia) weather station over the course of an average November. It is based on the historical records from 1995 to 2012. Earlier records are either unavailable or unreliable.
Riga has a humid continental climate with warm summers and no dry season. The area within 25 mi of this station is covered by croplands (43%), oceans and seas (26%), forests (15%), grasslands (10%), and built-up areas (3%).
The month of November is characterized by rapidly falling daily high temperatures, with daily highs decreasing from 45Â°F to 36Â°F over the course of the month, exceeding 52Â°F or dropping below 25Â°F only one day in ten.
Over the course of November, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1:52 hours, implying an average day-over-day decrease of 3.7 minutes.
The shortest day of the month is November 30 with 7:13 hours of daylight; the longest day is November 1 with 9:06 hours of daylight.
The earliest sunrise is at 7:35am on November 1; the latest sunset is at 4:40pm on November 1; the latest sunrise is at 8:36am on November 30; the earliest sunset is at 3:49pm on November 30.
Daylight savings time is observed in 2012 but it neither starts nor ends in November, so the entire month is in standard time.
The median cloud cover is 99% (overcast) and does not vary substantially over the course of the month.
On November 15, a representative day, the sky is clear or mostly clear 3% of the time, partly cloudy 6% of the time, and mostly cloudy or overcast 78% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around November 29, occurring in 74% of days. Precipitation is least likely around November 1, occurring in 67% of days.
Throughout November, the most common forms of precipitation are light rain, moderate snow, and light snow.
Light rain is the most severe precipitation observed during 46% of those days with precipitation. It is most likely around November 1, when it is observed during 38% of all days.
Moderate snow is the most severe precipitation observed during 23% of those days with precipitation. It is most likely around November 30, when it is observed during 23% of all days.
Light snow is the most severe precipitation observed during 16% of those days with precipitation. It is most likely around November 30, when it is observed during 16% of all days.
The likelihood of snow falling is highest around November 30, occurring in 41% of days.
Either snow rarely accumulates at this location in November or snow depth measurements are unavailable or unreliable.
The relative humidity typically ranges from 75% (humid) to 97% (very humid) over the course of a typical November, rarely dropping below 60% (mildly humid) and reaching as high as 100% (very humid).
The air is driest around November 1, at which time the relative humidity drops below 83% (humid) three days out of four; it is most humid around November 15, rising above 96% (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 26Â°F (dry) to 41Â°F (dry) and is rarely below 11Â°F (dry) or above 49Â°F (dry).
Over the course of November typical wind speeds vary from 3 mph to 13 mph (light breeze to moderate breeze), rarely exceeding 19 mph (fresh breeze).
The highest average wind speed of 9 mph (gentle breeze) occurs around November 30, at which time the average daily maximum wind speed is 12 mph (moderate breeze).
The lowest average wind speed of 8 mph (gentle breeze) occurs around November 11, at which time the average daily maximum wind speed is 12 mph (moderate breeze).