Earliest and Latest Days at or Below 0° C in Welland

This is a list of the earliest and latest days in a winter season where the low temperature fell to at least 0 °C in Welland, Ontario history. It is based on NOAA data from the years 1872–2024.

Earliest freezing temperature in Welland?

The earliest in a winter season that Welland, Ontario has recorded a low temperature of 0 °C or below is September 10 which happened in 1883.

Latest freezing temperature in Welland?

The latest in a winter season that Welland, Ontario has recorded a low temperature of 0 °C or below is May 29 which happened in 1884.

Earliest Days ≤ 0 °C

Date	Year	Temperature
September 10	1883	-2.2 °C
September 17	1959	0.0 °C
September 18	1990	-0.5 °C
September 18	1875	0.0 °C
September 19	1916	-0.6 °C
September 20	1873	0.0 °C
September 23	1974	-1.7 °C
September 23	1947	0.0 °C
September 23	1896	-1.1 °C
September 23	1880	0.0 °C
September 23	1875	-1.7 °C
September 24	1989	0.0 °C
September 24	1983	0.0 °C
September 26	1947	0.0 °C
September 26	1943	0.0 °C
September 27	1980	0.0 °C
September 29	1942	-0.6 °C
September 29	1903	-1.7 °C
September 30	1993	0.0 °C
September 30	1935	-0.6 °C

Latest Days ≤ 0 °C

Date	Year	Temperature
May 29	1884	0.0 °C
May 27	1994	0.0 °C
May 27	1930	0.0 °C
May 27	1915	0.0 °C
May 26	1997	0.0 °C
May 26	1988	0.0 °C
May 25	1956	0.0 °C
May 25	1925	0.0 °C
May 24	1963	-1.7 °C
May 24	1956	-1.1 °C
May 24	1925	0.0 °C
May 23	2015	-1.9 °C
May 23	2006	0.0 °C
May 23	1997	-0.5 °C
May 23	1967	0.0 °C
May 22	2002	0.0 °C
May 22	1924	-1.7 °C
May 22	1907	-0.6 °C
May 22	1895	-1.1 °C
May 22	1883	-0.6 °C