This report describes the typical weather at the Dublin International Airport (Dublin, Ireland) weather station over the course of an average February. 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 February is characterized by essentially constant daily high temperatures, with daily highs around 47°F throughout the month, exceeding 53°F or dropping below 39°F only one day in ten.
Over the course of February, the length of the day is rapidly increasing. From the start to the end of the month, the length of the day increases by 1:52 hours, implying an average day-over-day increase of 3.9 minutes.
The shortest day of the month is February 1 with 8:56 hours of daylight; the longest day is February 29 with 10:48 hours of daylight.
The earliest sunrise is at 7:14am on February 29; the latest sunset is at 6:02pm on February 29; the latest sunrise is at 8:11am on February 1; the earliest sunset is at 5:07pm on February 1.
Daylight savings time is observed in 2012 but it neither starts nor ends in February, so the entire month is in standard time.
The median cloud cover is 89% (mostly cloudy) and does not vary substantially over the course of the month.
On February 15, a representative day, the sky is clear or mostly clear 18% of the time, partly cloudy 14% of the time, and mostly cloudy or overcast 62% of the time.
The average probability that some form of precipitation will be observed in a given day is 77%, with little variation over the course of the month.
Throughout February, the most common forms of precipitation are moderate rain and light rain.
Moderate rain is the most severe precipitation observed during 66% of those days with precipitation. It is most likely around February 15, 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 February 12, when it is observed during 9% of all days.
The likelihood of snow falling is highest around February 2, occurring in 12% of days.
Accumulation at this location in February is extremely unlikely. The chances of there being snow on the ground are highest around February 5, occurring 3% of the time.
The snow is typically at its deepest on February 20, with a median depth of 1.2"; the depth exceeds 1.4" only one year out of ten.
The relative humidity typically ranges from 67% (mildly humid) to 95% (very humid) over the course of a typical February, rarely dropping below 54% (mildly humid) and reaching as high as 100% (very humid).
The air is driest around February 29, at which time the relative humidity drops below 74% (humid) three days out of four; it is most humid around February 1, rising above 92% (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 February, the dew point typically varies from 32°F (dry) to 42°F (dry) and is rarely below 25°F (dry) or above 49°F (dry).
Over the course of February typical wind speeds vary from 5 mph to 21 mph (light breeze to fresh breeze), rarely exceeding 33 mph (high wind).
The highest average wind speed of 13 mph (moderate breeze) occurs around February 1, at which time the average daily maximum wind speed is 21 mph (fresh breeze).
The lowest average wind speed of 13 mph (moderate breeze) occurs around February 23, at which time the average daily maximum wind speed is 20 mph (fresh breeze).