Average Weather In March For Baltimore, Maryland, USA

Location

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%).

Temperature

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.

Daily High and Low Temperature in March

The daily average low (blue) and high (red) temperature with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile).
Daily low temperatures range from 35°F to 45°F, falling below 27°F or exceeding 53°F only one day in ten.

Fraction of Time Spent in Various Temperature Bands in March

The average fraction of time spent in various temperature bands: frigid (below 15°F), freezing (15°F to 32°F), cold (32°F to 50°F), cool (50°F to 65°F), comfortable (65°F to 75°F), warm (75°F to 85°F), hot (85°F to 100°F) and sweltering (above 100°F).

Sun

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.

Daily Hours of Daylight and Twilight in March

The number of hours during which the Sun is visible (black line), with various degrees of daylight, twilight, and night, indicated by the color bands. From bottom (most yellow) to top (most gray): full daylight, solar twilight (Sun is visible but less than 6° from the horizon), civil twilight (Sun is not visible but is less than 6° below the horizon), nautical twilight (Sun is between 6° and 12° below the horizon), astronomical twilight (Sun is between 12° and 18° below the horizon), and full night.

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.

Daily Sunrise & Sunset with Twilight and Daylight Savings Time in March

The solar day over the course of the year 2012 . From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (solar, civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight savings time are indicated by the "DST" labels.

Clouds

This weather station does not reliably report sky cover.

Precipitation

There is either very little precipitation at this location in March, or the weather station does not reliably report the conditions.

Snow

Either snow is exceptionally unlikely to fall at this location in March or this station does not reliably report precipitation types.

Humidity

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.

Relative Humidity in March

The average daily high (blue) and low (brown) relative humidity with percentile bands (inner bands from 25th to 75th percentile, outer bands from 10th to 90th percentile).

Dew Point

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).

Dew Point in March

The daily average low (blue) and high (red) dew point with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile).

Wind

This weather station does not reliably report the wind speed or direction in March.