Earliest and Latest Days of 20° C in Irkutsk

This is a list of the earliest and latest days in the year with a high temperature of at least 20 °C in Irkutsk, Russia history. It is based on NOAA data from the years 1882–2024.

Also see:

Earliest 20 degree day in Irkutsk?

The earliest in the year that Irkutsk, Russia had a high temperature of at least 20 °C is March 30 which has happened twice, most recently in 2023.

Latest 20 degree day in Irkutsk?

The latest in the year that Irkutsk, Russia had a high temperature of at least 20 °C is October 19 which has happened twice, most recently in 1926.

Earliest Days ≥ 20 °C

Date	Year	Temperature
March 30	2023	21.1 °C
March 30	1994	20.0 °C
April 3	2014	20.7 °C
April 3	1981	20.4 °C
April 3	1938	20.2 °C
April 5	2014	22.8 °C
April 9	1940	20.9 °C
April 11	1997	20.3 °C
April 11	1947	20.0 °C
April 11	1912	22.0 °C
April 12	2014	20.3 °C
April 12	2012	20.0 °C
April 12	1945	22.2 °C
April 13	2015	20.0 °C
April 13	2011	21.1 °C
April 13	1965	23.5 °C
April 13	1947	22.0 °C
April 13	1945	21.0 °C
April 14	2019	21.3 °C
April 14	1988	23.6 °C
April 14	1945	20.4 °C
April 14	1925	21.0 °C

Latest Days ≥ 20 °C

Date	Year	Temperature
October 19	1926	21.5 °C
October 19	1911	20.1 °C
October 18	1946	25.6 °C
October 13	2015	21.1 °C
October 13	1922	20.9 °C
October 12	2023	21.5 °C
October 12	2015	20.5 °C
October 12	1943	21.4 °C
October 11	2015	21.4 °C
October 11	1995	20.1 °C
October 11	1943	21.3 °C
October 9	1925	20.8 °C
October 9	1905	22.8 °C
October 8	1966	20.7 °C
October 8	1928	20.0 °C
October 7	2004	22.5 °C
October 7	1887	21.0 °C
October 6	2004	22.2 °C
October 6	1979	22.6 °C
October 6	1956	20.7 °C
October 6	1919	21.9 °C