Hay River, N. W. T. weather by month
Averages and records for each calendar month at Hay River, N. W. T., Canada, from 1943 to 2025. The warmest month is July, averaging 21.1°C; the coolest is January at −19.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −19.0°C | −28.3°C | 10.7°C2 January 1985 | −47.8°C16 January 1962 | 70 / 82 |
| February | −15.4°C | −26.2°C | 13.9°C28 February 1968 | −48.3°C1 February 1947 | 70 / 82 |
| March | −9.1°C | −21.2°C | 16.4°C20 March 2019 | −44.4°C2 March 1945 | 69 / 82 |
| April | 2.0°C | −9.3°C | 26.0°C21 April 2010 | −38.9°C6 April 1954 | 72 / 83 |
| May | 10.9°C | 0.2°C | 34.3°C30 May 2025 | −20.5°C5 May 2002 | 70 / 83 |
| June | 17.6°C | 6.7°C | 34.0°C13 June 1989 | −5.6°C3 June 1951 | 71 / 82 |
| July | 21.1°C | 10.8°C | 35.1°C10 July 2012 | 0.7°C9 July 2009 | 71 / 82 |
| August | 19.6°C | 9.4°C | 36.7°C9 August 1981 | −1.1°C25 August 1948 | 71 / 82 |
| September | 13.0°C | 4.0°C | 30.1°C12 September 2013 | −11.7°C30 September 1974 | 70 / 81 |
| October | 4.5°C | −2.9°C | 25.4°C4 October 2003 | −24.3°C30 October 1984 | 68 / 81 |
| November | −7.6°C | −15.4°C | 15.0°C4 November 1949 | −40.8°C25 November 1985 | 69 / 81 |
| December | −15.6°C | −24.5°C | 12.2°C13 December 1944 | −47.2°C14 December 1946 | 69 / 82 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 68 to 72 years each.
See what Hay River, N. W. T. is doing right now
Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.