This report describes the typical weather at the Munich International Airport (Franz Josef Strauß International Airport) (Munich, Germany) weather station over the course of an average January. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Munich has a humid continental climate with warm summers and no dry season. The area within 25 mi of this station is covered by grasslands (60%), croplands (33%), built-up areas (5%), and forests (3%).
The month of January is characterized by essentially constant daily high temperatures, with daily highs around 37°F throughout the month, exceeding 50°F or dropping below 24°F only one day in ten.
Over the course of January, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 1:02 hours, implying an average day-over-day increase of 2.0 minutes.
The shortest day of the month is January 1 with 8:24 hours of daylight; the longest day is January 31 with 9:25 hours of daylight.
The earliest sunrise is at 7:44am on January 31; the latest sunset is at 5:09pm on January 31; the latest sunrise is at 8:04am on January 1; the earliest sunset is at 4:28pm on January 1.
Daylight savings time is observed in 2012 but it neither starts nor ends in January, so the entire month is in standard time.
The median cloud cover is 90% (mostly cloudy) and does not vary substantially over the course of the month.
On January 16, a representative day, the sky is clear or mostly clear 14% of the time, partly cloudy 11% of the time, and mostly cloudy or overcast 55% of the time.
The average probability that some form of precipitation will be observed in a given day is 71%, with little variation over the course of the month.
Throughout January, the most common forms of precipitation are moderate snow, moderate rain, and light snow.
Moderate snow is the most severe precipitation observed during 45% of those days with precipitation. It is most likely around January 10, when it is observed during 32% of all days.
Moderate rain is the most severe precipitation observed during 24% of those days with precipitation. It is most likely around January 1, when it is observed during 19% of all days.
Light snow is the most severe precipitation observed during 16% of those days with precipitation. It is most likely around January 16, when it is observed during 12% of all days.
The likelihood of snow falling is highest around January 16, occurring in 46% of days.
Accumulation at this location in January is unlikely. The chances of there being snow on the ground are highest around January 21, occurring 17% of the time.
The snow is typically at its deepest on January 19, with a median depth of 3.8"; the depth exceeds 8.5" only one year out of ten.
The relative humidity typically ranges from 69% (mildly humid) to 96% (very humid) over the course of a typical January, rarely dropping below 51% (mildly humid) and reaching as high as 100% (very humid).
The air is driest around January 31, at which time the relative humidity drops below 79% (humid) three days out of four; it is most humid around January 15, rising above 93% (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 January, the dew point typically varies from 21°F (dry) to 31°F (dry) and is rarely below 7°F (dry) or above 41°F (dry).
Over the course of January typical wind speeds vary from 2 mph to 13 mph (light air to moderate breeze), rarely exceeding 27 mph (strong breeze).
The highest average wind speed of 9 mph (gentle breeze) occurs around January 29, at which time the average daily maximum wind speed is 13 mph (moderate breeze).
The lowest average wind speed of 8 mph (gentle breeze) occurs around January 16, at which time the average daily maximum wind speed is 12 mph (gentle breeze).