This report describes the typical weather at the Bemidji Regional Airport (Bemidji, Minnesota, United States) weather station over the course of an average March. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Bemidji, Minnesota has a humid continental climate with warm summers and no dry season. The area within 25 mi of this station is covered by croplands (80%), forests (12%), and lakes and rivers (7%).
The month of March is characterized by rapidly rising daily high temperatures, with daily highs increasing from 28°F to 42°F over the course of the month, exceeding 57°F or dropping below 13°F only one day in ten.
Over the course of March, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1:43 hours, implying an average day-over-day increase of 3.3 minutes.
The shortest day of the month is March 1 with 11:06 hours of daylight; the longest day is March 31 with 12:49 hours of daylight.
The earliest sunrise is at 6:41am on March 10; the latest sunset is at 7:49pm on March 31; the latest sunrise is at 7:40am on March 11; the earliest sunset is at 6:05pm on March 1.
Daylight savings time (DST) starts at 3:00am on March 11, 2012, shifting sunrise and sunset to an hour later.
The median cloud cover ranges from 70% (partly cloudy) to 77% (partly cloudy). The trend is for the sky to be clearing with the median cloud cover decreasing by 7% from the start to the end of the month.
On March 16, a representative day, the sky is clear or mostly clear 29% of the time, partly cloudy 8% of the time, and mostly cloudy or overcast 46% of the time.
The average probability that some form of precipitation will be observed in a given day is 28%, with little variation over the course of the month.
Throughout March, the most common forms of precipitation are light snow and moderate snow.
Light snow is the most severe precipitation observed during 59% of those days with precipitation. It is most likely around March 1, when it is observed during 20% of all days.
Moderate snow is the most severe precipitation observed during 18% of those days with precipitation. It is most likely around March 3, when it is observed during 6% of all days.
The likelihood of snow falling is highest around March 1, occurring in 27% of days.
Accumulation at this location in March is unlikely. The chances of there being snow on the ground are highest around March 1, occurring 28% of the time.
The snow is typically at its deepest on March 11, with a median depth of 15.1"; the depth exceeds 24.1" only one year out of ten.
The relative humidity typically ranges from 45% (comfortable) to 92% (very humid) over the course of a typical March, rarely dropping below 26% (dry) and reaching as high as 100% (very humid).
The air is driest around March 31, at which time the relative humidity drops below 56% (mildly humid) three days out of four; it is most humid around March 7, rising above 85% (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 March, the dew point typically varies from 2°F (dry) to 28°F (dry) and is rarely below -20°F (dry) or above 40°F (dry).
Over the course of March typical wind speeds vary from 1 mph to 16 mph (light air to moderate breeze), rarely exceeding 23 mph (fresh breeze).
The highest average wind speed of 9 mph (gentle breeze) occurs around March 28, at which time the average daily maximum wind speed is 16 mph (moderate breeze).
The lowest average wind speed of 9 mph (gentle breeze) occurs around March 1, at which time the average daily maximum wind speed is 15 mph (moderate breeze).