Earliest and Latest Days of 30° C in Saint-Hyacinthe

This is a list of the earliest and latest days in the year with a high temperature of at least 30 °C in Saint-Hyacinthe, Quebec history. It is based on NOAA data from the years 1890–2024.

Also see:

Earliest 30 degree day in Saint-Hyacinthe?

The earliest in the year that Saint-Hyacinthe, Quebec had a high temperature of at least 30 °C is April 27 which has happened twice, most recently in 2009.

Latest 30 degree day in Saint-Hyacinthe?

The latest in the year that Saint-Hyacinthe, Quebec had a high temperature of at least 30 °C is September 25 which has happened twice, most recently in 1961.

Earliest Days ≥ 30 °C

Date	Year	Temperature
April 27	2009	31.0 °C
April 27	1990	30.5 °C
April 28	1962	30.0 °C
May 2	2001	30.0 °C
May 3	2001	31.0 °C
May 4	1944	31.1 °C
May 6	1944	30.0 °C
May 7	2000	31.0 °C
May 7	1982	30.0 °C
May 7	1959	30.0 °C
May 7	1895	30.0 °C
May 8	2015	30.2 °C
May 8	2013	30.1 °C
May 8	1939	30.0 °C
May 8	1936	30.0 °C
May 8	1895	30.0 °C
May 9	1979	32.2 °C
May 10	2007	32.5 °C
May 10	1953	30.6 °C
May 10	1895	31.1 °C

Latest Days ≥ 30 °C

Date	Year	Temperature
September 25	1961	31.7 °C
September 25	1891	30.0 °C
September 23	1961	30.0 °C
September 20	1983	30.0 °C
September 20	1946	30.0 °C
September 19	1955	30.0 °C
September 18	1942	31.7 °C
September 16	1939	32.8 °C
September 15	1939	30.6 °C
September 14	2005	30.5 °C
September 14	2003	30.5 °C
September 14	1961	30.0 °C
September 13	1951	31.1 °C
September 11	2013	30.5 °C
September 11	1961	31.1 °C
September 11	1947	30.0 °C
September 10	2002	33.0 °C
September 10	1989	31.0 °C
September 10	1961	30.0 °C
September 10	1959	31.7 °C