Earliest and Latest Days of 20° C in Dublin

This is a list of the earliest and latest days in the year with a high temperature of at least 20 °C in Dublin, Ireland history. It is based on NOAA data from the years 1867–2024.

Also see:

Earliest 20 degree day in Dublin?

The earliest in the year that Dublin, Ireland had a high temperature of at least 20 °C is March 9 which happened in 1948.

Latest 20 degree day in Dublin?

The latest in the year that Dublin, Ireland had a high temperature of at least 20 °C is October 22 which has happened twice, most recently in 1996.

Earliest Days ≥ 20 °C

Date	Year	Temperature
March 9	1948	20.6 °C
March 25	1953	20.0 °C
March 26	1944	20.0 °C
March 28	1965	22.2 °C
March 29	1965	23.4 °C
March 30	1929	22.2 °C
April 10	2020	20.1 °C
April 10	2011	20.3 °C
April 10	1909	20.3 °C
April 11	2020	20.5 °C
April 11	1869	22.9 °C
April 12	1869	20.8 °C
April 13	1869	20.7 °C
April 14	1946	20.6 °C
April 15	2003	21.4 °C
April 15	1945	20.0 °C
April 16	2003	22.2 °C
April 17	2003	20.1 °C
April 17	1987	20.5 °C
April 18	2018	20.0 °C
April 18	1952	20.0 °C

Latest Days ≥ 20 °C

Date	Year	Temperature
October 22	1996	20.3 °C
October 22	1971	21.2 °C
October 18	1997	20.2 °C
October 18	1921	20.6 °C
October 16	1977	20.0 °C
October 16	1951	21.1 °C
October 15	1984	20.3 °C
October 15	1949	21.1 °C
October 14	1995	20.5 °C
October 14	1984	20.0 °C
October 14	1951	20.0 °C
October 14	1949	21.1 °C
October 14	1924	20.0 °C
October 14	1877	20.3 °C
October 13	1949	20.0 °C
October 12	1991	21.9 °C
October 12	1949	21.1 °C
October 12	1869	20.3 °C
October 11	2001	20.8 °C
October 11	1869	21.9 °C