August
August · June · July
Canada · 1991–2020
August leads for comfortable weather in Pierrefonds: typically 25.4°C by day, 14.6°C at night, with 86 mm of rain. Based on measured 1991–2020 NOAA station history.
August · June · July
July · August · June
September · May · June
The weakest month is January, scoring 5 against August’s 83 — days reach only -5°C, 29° 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 | -5°C | -14°C | 94 mm | 12.9 | 9 h 04 | 5 | Strong coverage |
| February | -3°C | -12.6°C | 76 mm | 10.5 | 10 h 18 | 5 | Good coverage |
| March | 2.6°C | -6.7°C | 77 mm | 11.4 | 11 h 46 | 5 | Good coverage |
| April | 11°C | 0.9°C | 82 mm | 10.8 | 13 h 27 | 18 | Good coverage |
| May | 19.1°C | 7.9°C | 80 mm | 10.3 | 14 h 52 | 58 | Good coverage |
| June | 24°C | 13.2°C | 100 mm | 10 | 15 h 39 | 81 | Good coverage |
| July | 26.3°C | 15.9°C | 88 mm | 9.7 | 15 h 20 | 77 | Good coverage |
| August | 25.4°C | 14.6°C | 86 mm | 8.6 | 14 h 06 | 83 | Good coverage |
| September | 21.2°C | 10.2°C | 81 mm | 9 | 12 h 28 | 70 | Good coverage |
| October | 13.3°C | 4.2°C | 84 mm | 9.8 | 10 h 51 | 32 | Good coverage |
| November | 6°C | -1.8°C | 79 mm | 11.2 | 9 h 26 | 5 | Strong coverage |
| December | -1.1°C | -8.6°C | 88 mm | 12.8 | 8 h 44 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 12.9°C19 Jan 1996 | -33.0°C26 Jan 1994 | 69 mm20 Jan 2007 | 382 mm2007 · driest 10 mm in 2003 | 33 |
| February | 15.1°C28 Feb 2024 | -30.2°C4 Feb 2023 | 58 mm12 Feb 2004 | 250 mm2006 · driest 15 mm in 2012 | 32 |
| March | 25.7°C21 Mar 2012 | -27.4°C3 Mar 2003 | 53 mm25 Mar 2006 | 272 mm2006 · driest 28 mm in 2015 | 32 |
| April | 30.8°C27 Apr 2009 | -14.3°C5 Apr 1995 | 48 mm7 Apr 2022 | 144 mm2017 · driest 6 mm in 2020 | 32 |
| May | 36.1°C27 May 2020 | -2.1°C13 May 2005 | 68 mm26 May 1994 | 134 mm2002 · driest 0 mm in 1996 | 32 |
| June | 34.8°C1 Jun 2023 | 2.3°C5 Jun 2000 | 64 mm14 Jun 2005 | 179 mm1994 · driest 25 mm in 2020 | 32 |
| July | 35.3°C10 Jul 2020 | 6.7°C25 Jul 2013 | 58 mm19 Jul 2015 | 197 mm2023 · driest 22 mm in 2005 | 32 |
| August | 35.0°C14 Aug 2002 | 5.8°C20 Aug 2007 | 72 mm3 Aug 2010 | 169 mm2016 · driest 9 mm in 2002 | 31 |
| September | 33.8°C9 Sep 2002 | -0.8°C29 Sep 2000 | 75 mm30 Sep 2010 | 158 mm2010 · driest 24 mm in 2016 | 29 |
| October | 29.9°C5 Oct 2025 | -6.5°C31 Oct 2020 | 61 mm7 Oct 2005 | 210 mm2003 · driest 0 mm in 2007 | 31 |
| November | 24.2°C5 Nov 2022 | -18.1°C22 Nov 2018 | 79 mm1 Nov 1994 | 200 mm2003 · driest 5 mm in 2012 | 31 |
| December | 17.1°C24 Dec 2015 | -31.0°C17 Dec 2013 | 59 mm2 Dec 2003 | 183 mm2003 · driest 22 mm in 1998 | 32 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 29 | 2 |
| February | 0 | 0 | 27 | 2 |
| March | 0 | 0 | 26 | 2 |
| April | <1 | 0 | 12 | 3 |
| May | 5 | <1 | <1 | 2 |
| June | 12 | 3 | 0 | 3 |
| July | 20 | 4 | 0 | 3 |
| August | 16 | 2 | 0 | 3 |
| September | 6 | <1 | <1 | 3 |
| October | <1 | 0 | 5 | 3 |
| November | 0 | 0 | 19 | 2 |
| December | 0 | 0 | 27 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 40% | 8% | 54% | -8.4–-1.8°C |
| February | 0% | 39% | 8% | 57% | -5.6–-0.5°C |
| March | <1% | 36% | 7% | 49% | 0.3–5.7°C |
| April | 6% | 36% | 10% | 51% | 9.3–13.4°C |
| May | 35% | 31% | 8% | 36% | 16.6–21.7°C |
| June | 59% | 32% | 11% | 40% | 22.7–25.9°C |
| July | 68% | 30% | 11% | 35% | 24.5–28.4°C |
| August | 71% | 27% | 10% | 29% | 23.7–27.3°C |
| September | 45% | 30% | 9% | 38% | 19.3–22.8°C |
| October | 9% | 31% | 10% | 43% | 11.1–16.0°C |
| November | 1% | 37% | 8% | 53% | 3.1–8.7°C |
| December | 0% | 41% | 8% | 61% | -4.6–2.4°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