Most Monthly Precipitation in Yellowknife History

This is a list of the largest monthly precipitation totals ever recorded in Yellowknife, Northwest Territories history from 1942–2024.

What Was the Wettest Month in Yellowknife History?

According to NOAA records, the most precipitation that Yellowknife, Northwest Territories has ever received in a single month is 14.2 cm which occurred in August 1969.

Yellowknife Most Rain in One Month

Rank	Precipitation	Month
1	14.2 cm	August 1969
2	12.7 cm	August 1973
3	12.0 cm	August 1958
4	11.4 cm	June 2018
5	10.7 cm	July 1988
6	10.4 cm	September 2008
7	10.3 cm	July 2002
8	9.8 cm	July 2020
9	9.3 cm	October 1967
10	8.9 cm	July 2007
11	8.8 cm	July 1948
12	8.8 cm	August 2000
13	8.6 cm	July 2018
14	8.5 cm	August 1990
15	8.5 cm	August 1975
16	8.5 cm	August 1970
17	8.4 cm	September 2005
18	7.8 cm	August 2001
19	7.7 cm	July 1978
20	7.7 cm	September 2009