August
August · July · June
Canada · 1991–2020
August leads for comfortable weather in Confederation: typically 25.2°C by day, 12.3°C at night, with 55 mm of rain. Based on measured 1991–2020 NOAA station history.
August · July · June
July · August · June
September · May · June
The weakest month is January, scoring 5 against August’s 85 — days reach only -9.7°C, 34° below the 24°C the score treats as ideal.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -9.7°C | -18.9°C | 14 mm | 4 | 8 h 13 | 5 | Good coverage |
| February | -5.8°C | -15.2°C | 8 mm | 2.4 | 9 h 49 | 5 | Good coverage |
| March | 1°C | -9.1°C | 11 mm | 3.1 | 11 h 41 | 5 | Good coverage |
| April | 11.4°C | -0.3°C | 22 mm | 5.2 | 13 h 49 | 29 | Good coverage |
| May | 18.5°C | 5.6°C | 34 mm | 6.1 | 15 h 40 | 62 | Good coverage |
| June | 22.6°C | 10.9°C | 76 mm | 9.5 | 16 h 43 | 76 | Good coverage |
| July | 25.9°C | 13.6°C | 68 mm | 9.1 | 16 h 18 | 81 | Good coverage |
| August | 25.2°C | 12.3°C | 55 mm | 6.6 | 14 h 40 | 85 | Good coverage |
| September | 19.1°C | 6.7°C | 38 mm | 6 | 12 h 35 | 66 | Good coverage |
| October | 10.5°C | 0.1°C | 24 mm | 4.3 | 10 h 32 | 27 | Good coverage |
| November | 0.1°C | -7.6°C | 12 mm | 3.7 | 8 h 41 | 5 | Good coverage |
| December | -6.8°C | -15.1°C | 14 mm | 4.3 | 7 h 45 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 11.0°C23 Jan 1980 | -42.0°C29 Jan 2008 | 26 mm21 Jan 2008 | 40 mm1975 · driest 0 mm in 2009 | 35 |
| February | 9.5°C16 Feb 2002 | -39.5°C7 Feb 1994 | 15 mm4 Feb 2005 | 24 mm1975 · driest 0 mm in 1981 | 35 |
| March | 19.5°C23 Mar 1993 | -34.5°C11 Mar 2009 | 14 mm4 Mar 2006 | 30 mm1988 · driest 0 mm in 2008 | 35 |
| April | 30.0°C26 Apr 1977 | -30.5°C1 Apr 1979 | 29 mm19 Apr 1985 | 66 mm1991 · driest 0 mm in 2009 | 35 |
| May | 34.0°C22 May 2006 | -9.5°C8 May 1996 | 44 mm17 May 1994 | 178 mm1977 · driest 0 mm in 2002 | 35 |
| June | 40.0°C5 Jun 1988 | 0.0°C4 Jun 1985 | 61 mm3 Jun 1976 | 176 mm2005 · driest 13 mm in 1988 | 35 |
| July | 39.0°C23 Jul 2007 | 3.0°C25 Jul 2005 | 50 mm7 Jul 1996 | 146 mm1986 · driest 17 mm in 2007 | 34 |
| August | 39.0°C16 Aug 2003 | 0.0°C2 Aug 2002 | 57 mm18 Aug 2007 | 103 mm2002 · driest 3 mm in 2001 | 35 |
| September | 34.5°C8 Sep 1994 | -5.5°C29 Sep 1985 | 52 mm10 Sep 2005 | 129 mm2006 · driest 2 mm in 1995 | 34 |
| October | 30.0°C2 Oct 2008 | -21.0°C30 Oct 1991 | 32 mm10 Oct 1998 | 59 mm1998 · driest 1 mm in 2000 | 33 |
| November | 19.4°C4 Nov 1975 | -32.0°C30 Nov 1985 | 14 mm22 Nov 1992 | 39 mm2006 · driest 0 mm in 1979 | 35 |
| December | 11.0°C3 Dec 2004 | -39.0°C29 Dec 1984 | 20 mm13 Dec 2005 | 33 mm1977 · driest 0 mm in 2008 | 35 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | <1 | 6 |
| February | 0 | 0 | 26 | <1 | 3 |
| March | 0 | 0 | 28 | <1 | 3 |
| April | <1 | <1 | 16 | <1 | 2 |
| May | 5 | <1 | 4 | <1 | <1 |
| June | 10 | 2 | 0 | 2 | 0 |
| July | 18 | 6 | 0 | 2 | 0 |
| August | 16 | 6 | <1 | 2 | 0 |
| September | 6 | 1 | 2 | 1 | <1 |
| October | <1 | <1 | 16 | <1 | 1 |
| November | 0 | 0 | 27 | <1 | 4 |
| December | 0 | 0 | 28 | <1 | 5 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 13% | <1% | 8% | -14.7–-3.5°C |
| February | 0% | 9% | <1% | 5% | -10.4–-1.1°C |
| March | 0% | 11% | <1% | 6% | -3.4–4.1°C |
| April | 12% | 16% | 2% | 10% | 7.4–15.3°C |
| May | 37% | 21% | 5% | 23% | 15.7–20.9°C |
| June | 57% | 29% | 6% | 35% | 20.9–24.4°C |
| July | 68% | 27% | 6% | 29% | 23.4–27.4°C |
| August | 66% | 21% | 5% | 21% | 22.2–28.1°C |
| September | 40% | 20% | 4% | 17% | 15.8–21.4°C |
| October | 9% | 12% | 1% | 8% | 8.2–13.2°C |
| November | 0% | 12% | <1% | 9% | -4.6–4.2°C |
| December | 0% | 14% | <1% | 9% | -13.1–-2.8°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page