Earliest and Latest Days at or Below 0° C in Fort Smith

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 Fort Smith, Northwest Territories history. It is based on NOAA data from the years 1942–2024.

Earliest freezing temperature in Fort Smith?

The earliest in a winter season that Fort Smith, Northwest Territories has recorded a low temperature of 0 °C or below is July 3 which happened in 1953.

Latest freezing temperature in Fort Smith?

The latest in a winter season that Fort Smith, Northwest Territories has recorded a low temperature of 0 °C or below is June 30 which happened in 1947.

Earliest Days ≤ 0 °C

Date	Year	Temperature
July 3	1953	-1.1 °C
July 4	1949	0.0 °C
July 8	1949	0.0 °C
July 9	1950	0.0 °C
July 11	1949	0.0 °C
July 13	1951	-3.3 °C
July 14	1951	-2.2 °C
July 15	1951	-0.6 °C
July 17	1950	-1.1 °C
July 17	1947	0.0 °C
July 21	1982	-0.7 °C
July 27	1968	0.0 °C
July 28	1969	-0.6 °C
July 29	1969	0.0 °C
July 29	1952	-1.7 °C
July 31	1953	-0.6 °C
August 4	1972	0.0 °C
August 4	1947	0.0 °C
August 5	1972	0.0 °C
August 6	1968	-2.2 °C

Latest Days ≤ 0 °C

Date	Year	Temperature
June 30	1947	-0.6 °C
June 29	1953	-3.3 °C
June 29	1947	0.0 °C
June 29	1946	-1.1 °C
June 28	1959	-2.8 °C
June 25	1987	-0.4 °C
June 25	1950	-2.2 °C
June 23	1953	0.0 °C
June 23	1944	0.0 °C
June 22	1946	-2.2 °C
June 21	1952	-1.1 °C
June 20	1957	0.0 °C
June 19	1961	-0.6 °C
June 19	1957	-0.6 °C
June 19	1952	-0.6 °C
June 18	1978	0.0 °C
June 18	1968	-2.2 °C
June 18	1961	0.0 °C
June 17	2004	-1.0 °C
June 17	1978	-2.6 °C
June 17	1945	-1.7 °C