Dublin Arpt climate by month
Averages and records for each calendar month at Dublin Arpt, Ireland, from 1867 to 2026. The warmest month is July, averaging 19.8°C; the coolest is January at 7.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 7.9°C | 2.1°C | 17.0°C10 January 1971 | −13.4°C15 January 1982 | 156 / 159 |
| February | 8.5°C | 2.2°C | 18.1°C23 February 1891 | −8.7°C1 February 1972 | 156 / 159 |
| March | 10.2°C | 2.7°C | 23.4°C29 March 1965 | −8.3°C4 March 1962 | 158 / 159 |
| April | 12.5°C | 3.7°C | 22.9°C11 April 1869 | −4.7°C10 April 1998 | 159 / 159 |
| May | 15.3°C | 5.9°C | 26.7°C31 May 1922 | −3.0°C6 May 2012 | 156 / 159 |
| June | 18.3°C | 8.8°C | 28.9°C6 June 1950 | −0.3°C1 June 1962 | 157 / 159 |
| July | 19.8°C | 10.7°C | 33.5°C16 July 1876 | 1.7°C8 July 1913 | 159 / 160 |
| August | 19.4°C | 10.5°C | 30.9°C12 August 2026 | 0.6°C12 August 1912 | 155 / 158 |
| September | 17.3°C | 8.6°C | 28.7°C6 September 1868 | −0.1°C22 September 1871 | 158 / 159 |
| October | 13.8°C | 6.2°C | 24.2°C3 October 1959 | −3.5°C16 October 1993 | 153 / 159 |
| November | 10.2°C | 3.6°C | 19.4°C2 November 1927 | −8.4°C29 November 2010 | 153 / 159 |
| December | 8.4°C | 2.6°C | 17.2°C2 December 1948 | −13.8°C31 December 1961 | 154 / 159 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 153 to 159 years each.
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Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.