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

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

Earliest freezing temperature in Yellowknife?

The earliest in a winter season that Yellowknife, Northwest Territories has recorded a low temperature of 0 °C or below is August 24 which happened in 1982.

Latest freezing temperature in Yellowknife?

The latest in a winter season that Yellowknife, Northwest Territories has recorded a low temperature of 0 °C or below is June 12 which has happened 4 times, most recently in 2003.

Earliest Days ≤ 0 °C

Date	Year	Temperature
August 24	1982	-0.5 °C
August 25	1982	-0.6 °C
September 2	1981	-1.2 °C
September 2	1972	0.0 °C
September 2	1965	0.0 °C
September 3	1981	-2.0 °C
September 3	1965	-1.1 °C
September 3	1962	-0.6 °C
September 4	1985	-1.2 °C
September 4	1967	0.0 °C
September 4	1965	-1.7 °C
September 4	1956	-0.6 °C
September 5	2018	-1.6 °C
September 5	2014	-2.2 °C
September 5	1992	-0.2 °C
September 5	1990	0.0 °C
September 5	1981	-1.4 °C
September 5	1972	0.0 °C
September 5	1965	-1.1 °C
September 5	1964	0.0 °C

Latest Days ≤ 0 °C

Date	Year	Temperature
June 12	2003	-0.3 °C
June 12	1969	-0.6 °C
June 12	1957	-0.6 °C
June 12	1949	0.0 °C
June 11	1969	-3.9 °C
June 10	2019	-0.3 °C
June 10	1969	-0.6 °C
June 9	1967	-2.8 °C
June 9	1958	-1.1 °C
June 9	1957	0.0 °C
June 8	1967	-4.4 °C
June 8	1958	0.0 °C
June 8	1957	-2.2 °C
June 7	1967	-1.1 °C
June 7	1965	-1.7 °C
June 7	1958	0.0 °C
June 7	1951	-0.6 °C
June 7	1947	0.0 °C
June 6	1965	0.0 °C
June 6	1949	-1.1 °C