Shearwater climate by month
Averages and records for each calendar month at Shearwater, Canada, from 1944 to 2007. The warmest month is August, averaging 22.3°C; the coolest is January at −0.1°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −0.1°C | −8.5°C | 14.3°C16 January 1995 | −26.5°C26 January 1994 | 61 / 63 |
| February | −0.1°C | −8.5°C | 16.2°C20 February 1994 | −25.7°C7 February 1993 | 61 / 64 |
| March | 3.2°C | −4.6°C | 21.8°C31 March 1998 | −22.2°C6 March 1948 | 61 / 64 |
| April | 8.1°C | 0.1°C | 27.8°C11 April 1945 | −12.2°C1 April 1946 | 61 / 64 |
| May | 13.6°C | 4.6°C | 32.0°C23 May 1977 | −3.3°C3 May 1945 | 61 / 64 |
| June | 18.6°C | 9.4°C | 33.0°C23 June 1983 | 2.0°C12 June 1982 | 62 / 64 |
| July | 22.1°C | 13.3°C | 33.3°C26 July 1963 | 6.7°C4 July 1946 | 62 / 64 |
| August | 22.3°C | 13.9°C | 32.4°C1 August 1995 | 5.6°C31 August 1965 | 61 / 64 |
| September | 19.1°C | 10.5°C | 33.3°C8 September 1945 | −0.5°C29 September 1980 | 62 / 63 |
| October | 13.6°C | 5.6°C | 27.8°C6 October 1946 | −5.6°C22 October 1974 | 62 / 63 |
| November | 8.2°C | 1.1°C | 22.2°C1 November 1956 | −11.4°C27 November 1978 | 62 / 63 |
| December | 2.6°C | −5.1°C | 15.6°C10 December 1957 | −23.5°C29 December 1989 | 61 / 63 |
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 61 to 62 years each.
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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.