This report describes the typical weather at the Tromsø Airport (Tromsø, Norway) 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.
Tromsø has a humid subarctic continental climate with cool summers and no dry season. The area within 25 mi of this station is covered by tundra (47%), oceans and seas (36%), and forests (14%).
The month of November is characterized by gradually falling daily high temperatures, with daily highs decreasing from 38Â°F to 34Â°F over the course of the month, exceeding 45Â°F or dropping below 25Â°F only one day in ten.
Over the course of November, the length of the day is very rapidly decreasing. From the start to the end of the month, the length of the day decreases by 6:28 hours, implying an average day-over-day decrease of 12.9 minutes.
The shortest day of the month is November 27 with 0:00 hours of daylight; the longest day is November 1 with 6:28 hours of daylight.
Due to its extreme latitude, Tromsø experiences polar night during winter. During this period of time, the Sun remains continuously below the horizon for a prolonged period of time.
November is in polar night from November 27 onward.
The earliest sunrise is at 8:14am on November 1; the latest sunset is at 2:42pm on November 1; the latest sunrise is at 11:09am on November 26; the earliest sunset is at 11:54am on November 26.
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 84% (mostly cloudy) and does not vary substantially over the course of the month.
On November 15, a representative day, the sky is clear or mostly clear 19% of the time, partly cloudy 19% of the time, and mostly cloudy or overcast 49% of the time.
The average probability that some form of precipitation will be observed in a given day is 73%, with little variation over the course of the month.
Throughout November, the most common forms of precipitation are moderate snow, moderate rain, and light snow.
Moderate snow is the most severe precipitation observed during 50% of those days with precipitation. It is most likely around November 30, when it is observed during 42% of all days.
Moderate rain is the most severe precipitation observed during 24% of those days with precipitation. It is most likely around November 1, when it is observed during 24% of all days.
Light snow is the most severe precipitation observed during 15% of those days with precipitation. It is most likely around November 23, when it is observed during 12% of all days.
The likelihood of snow falling is highest around November 30, occurring in 55% of days.
Accumulation at this location in November is extremely unlikely. The chances of there being snow on the ground are highest around November 8, occurring 3% of the time.
The snow is typically at its deepest on November 30, with a median depth of 6.5"; the depth exceeds 7.0" only one year out of ten.
The relative humidity typically ranges from 66% (mildly humid) to 92% (very humid) over the course of a typical November, rarely dropping below 51% (mildly humid) and reaching as high as 100% (very humid).
The air is driest around November 29, at which time the relative humidity drops below 74% (humid) three days out of four; it is most humid around November 13, rising above 88% (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 19Â°F (dry) to 32Â°F (dry) and is rarely below 10Â°F (dry) or above 40Â°F (dry).
Over the course of November typical wind speeds vary from 1 mph to 19 mph (light air to fresh breeze), rarely exceeding 29 mph (strong breeze).
The highest average wind speed of 10 mph (gentle breeze) occurs around November 30, at which time the average daily maximum wind speed is 19 mph (fresh breeze).
The lowest average wind speed of 9 mph (gentle breeze) occurs around November 17, at which time the average daily maximum wind speed is 18 mph (fresh breeze).