Average Weather In February For Dublin, Ireland

Location

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%).

Temperature

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.

Daily High and Low Temperature in February

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 are around 37°F, falling below 30°F or exceeding 45°F only one day in ten.

Fraction of Time Spent in Various Temperature Bands in February

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 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.

Daily Hours of Daylight and Twilight in February

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 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.

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

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

The median cloud cover is 89% (mostly cloudy) and does not vary substantially over the course of the month.

Median Cloud Cover in February

The median daily cloud cover (black line) with percentile bands (inner band from 40th to 60th percentile, outer band from 25th to 75th percentile).

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.

Cloud Cover Types in February

The fraction of time spent in each of the five sky cover categories. From top (most blue) to bottom (most gray), the categories are clear, mostly clear, partly cloudy, mostly cloudy, and overcast. Pink indicates missing data. Outside of the United States clear skies are often reported ambiguously, leading them to be lumped in with the missing data.

Precipitation

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.

Probability of Precipitation at Some Point in the Day in February

The fraction of days in which various types of precipitation are observed. If more than one type of precipitation is reported in a given day, the more severe precipitation is counted. For example, if light rain is observed in the same day as a thunderstorm, that day counts towards the thunderstorm totals. The order of severity is from the top down in this graph, with the most severe at the bottom.

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.

Types of Precipitation Throughout February

Relative frequency of various types of precipitation over the course of a typical February.

Snow

The likelihood of snow falling is highest around February 2, occurring in 12% of days.

Probability of Snow Fall Being Reported in a Given Day in February

Probability that snow will be reported at least once in a given day.

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.

Chance of at Least Some Snow on the Ground in February

The probability that there is snow on the ground.

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.

Snow Depth When there is Snow on the Ground in February

The median depth of snow during times when there is at least some snow on the ground, with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile).

Humidity

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.

Relative Humidity in February

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 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).

Dew Point in February

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

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).

Wind Speed in February

The average daily minimum (red), maximum (green), and average (black) wind speed with percentile bands (inner band from 25th to 75th percentile, outer band from 10th to 90th percentile).
The wind is most often out of the west (27% of the time), south west (20% of the time), and south east (12% of the time).

Wind Directions in February

The fraction of time spent with the wind blowing from the various directions over the entire year. Values do not sum to 100% because the wind direction is undefined when the wind speed is zero.

Fraction of Time Spent with Various Wind Directions in February

The fraction of time spent with the wind blowing from the various directions on a daily basis. Stacked values do not always sum to 100% because the wind direction is undefined when the wind speed is zero.