This report describes the typical weather at the Dublin International Airport (Dublin, Ireland) 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.
Dublin has a mild humid temperate climate with warm summers and no dry season. The area within 25 mi of this station is covered by grasslands (53%), oceans and seas (39%), built-up areas (4%), and croplands (3%).
The month of March is characterized by gradually rising daily high temperatures, with daily highs around 49°F throughout the month, exceeding 56°F or dropping below 42°F only one day in ten.
Over the course of March, the length of the day is very rapidly increasing. From the start to the end of the month, the length of the day increases by 2:09 hours, implying an average day-over-day increase of 4.1 minutes.
The shortest day of the month is March 1 with 10:51 hours of daylight; the longest day is March 31 with 12:60 hours of daylight.
The earliest sunrise is at 6:17am on March 24; the latest sunset is at 7:59pm on March 31; the latest sunrise is at 7:14am on March 25; the earliest sunset is at 6:04pm on March 1.
Daylight savings time (DST) starts at 2:00am on March 25, 2012, shifting sunrise and sunset to an hour later.
The median cloud cover is 88% (mostly cloudy) and does not vary substantially over the course of the month.
On March 16, a representative day, the sky is clear or mostly clear 19% of the time, partly cloudy 17% of the time, and mostly cloudy or overcast 59% of the time.
The probability that precipitation will be observed at this location varies throughout the month. Precipitation is most likely around March 3, occurring in 77% of days. Precipitation is least likely around March 31, occurring in 72% of days.
Throughout March, the most common forms of precipitation are moderate rain and light rain.
Moderate rain is the most severe precipitation observed during 68% of those days with precipitation. It is most likely around March 4, when it is observed during 51% of all days.
Light rain is the most severe precipitation observed during 12% of those days with precipitation. It is most likely around March 27, when it is observed during 10% of all days.
The likelihood of snow falling is highest around March 5, occurring in 11% of days.
Either snow rarely accumulates at this location in March or snow depth measurements are unavailable or unreliable.
The relative humidity typically ranges from 62% (mildly humid) to 95% (very humid) over the course of a typical March, rarely dropping below 48% (comfortable) and reaching as high as 100% (very humid).
The air is driest around March 31, at which time the relative humidity drops below 70% (mildly humid) three days out of four; it is most humid around March 29, 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 March, the dew point typically varies from 33°F (dry) to 43°F (dry) and is rarely below 26°F (dry) or above 50°F (dry).
Over the course of March typical wind speeds vary from 4 mph to 20 mph (light breeze to fresh breeze), rarely exceeding 32 mph (high wind).
The highest average wind speed of 13 mph (moderate breeze) occurs around March 8, at which time the average daily maximum wind speed is 20 mph (fresh breeze).
The lowest average wind speed of 12 mph (gentle breeze) occurs around March 31, at which time the average daily maximum wind speed is 18 mph (fresh breeze).