This report describes the typical weather at the Baltimore (Baltimore, Maryland, United States) weather station over the course of an average March. It is based on the historical records from 1999 to 2012. Earlier records are either unavailable or unreliable.
Baltimore, Maryland has a warm humid temperate climate with hot summers and no dry season. The area within 25 mi of this station is covered by forests (53%), oceans and seas (18%), built-up areas (17%), and croplands (11%).
The month of March is characterized by rapidly rising daily high temperatures, with daily highs increasing from 50°F to 60°F over the course of the month, exceeding 72°F or dropping below 39°F only one day in ten.
Over the course of March, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 1:17 hours, implying an average day-over-day increase of 2.5 minutes.
The shortest day of the month is March 1 with 11:21 hours of daylight; the longest day is March 31 with 12:38 hours of daylight.
The earliest sunrise is at 6:25am on March 10; the latest sunset is at 7:30pm on March 31; the latest sunrise is at 7:23am on March 11; the earliest sunset is at 5:59pm on March 1.
Daylight savings time (DST) starts at 3:00am on March 11, 2012, shifting sunrise and sunset to an hour later.
This weather station does not reliably report sky cover.
There is either very little precipitation at this location in March, or the weather station does not reliably report the conditions.
Either snow is exceptionally unlikely to fall at this location in March or this station does not reliably report precipitation types.
The relative humidity typically ranges from 42% (comfortable) to 78% (humid) over the course of a typical March, rarely dropping below 22% (dry) and reaching as high as 98% (very humid).
The air is driest around March 1, at which time the relative humidity drops below 47% (comfortable) three days out of four; it is most humid around March 24, rising above 66% (mildly 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 19°F (dry) to 42°F (dry) and is rarely below 6°F (dry) or above 56°F (comfortable).
This weather station does not reliably report the wind speed or direction in March.