August
August · June · July
Canada · 1991–2020
August leads for comfortable weather in La Bostonnais: typically 24.2°C by day, 10.8°C at night, with 88 mm of rain. Based on measured 1991–2020 NOAA station history.
August · June · July
July · August · June
September · June · August
The weakest month is January, scoring 5 against August’s 76 — days reach only -8°C, 32° below the 24°C the score treats as ideal, and nights drop to -20.6°C.
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 | -8°C | -20.6°C | 52 mm | 11 | 8 h 50 | 5 | Good coverage |
| February | -5.5°C | -20°C | 48 mm | 10.2 | 10 h 10 | 5 | Good coverage |
| March | 0.8°C | -13.1°C | 58 mm | 10.7 | 11 h 44 | 5 | Good coverage |
| April | 8.6°C | -4.1°C | 67 mm | 11.2 | 13 h 33 | 5 | Good coverage |
| May | 18°C | 2.9°C | 74 mm | 11.9 | 15 h 05 | 45 | Good coverage |
| June | 23.5°C | 8.8°C | 84 mm | 10.9 | 15 h 57 | 73 | Good coverage |
| July | 25.5°C | 11.9°C | 110 mm | 11.8 | 15 h 36 | 71 | Good coverage |
| August | 24.2°C | 10.8°C | 88 mm | 11.5 | 14 h 16 | 76 | Good coverage |
| September | 19.3°C | 6.6°C | 97 mm | 10.6 | 12 h 30 | 54 | Good coverage |
| October | 10.9°C | 0.7°C | 86 mm | 11.7 | 10 h 46 | 16 | Good coverage |
| November | 2.9°C | -5.7°C | 65 mm | 11.8 | 9 h 14 | 5 | Good coverage |
| December | -4.5°C | -14.3°C | 69 mm | 12.6 | 8 h 28 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 12.7°C19 Jan 1996 | -44.9°C16 Jan 2009 | 35 mm31 Jan 2018 | 92 mm2017 · driest 0 mm in 1995 | 32 |
| February | 11.0°C27 Feb 2024 | -40.2°C15 Feb 2003 | 38 mm16 Feb 2016 | 128 mm2016 · driest 0 mm in 2000 | 32 |
| March | 26.9°C21 Mar 2012 | -37.4°C4 Mar 2016 | 28 mm4 Mar 1999 | 127 mm2016 · driest 0 mm in 2000 | 32 |
| April | 29.2°C25 Apr 2009 | -23.8°C6 Apr 2018 | 33 mm1 Apr 1998 | 127 mm2019 · driest 0 mm in 2000 | 32 |
| May | 34.9°C20 May 2012 | -8.2°C1 May 2008 | 64 mm30 May 2006 | 182 mm2006 · driest 0 mm in 1995 | 31 |
| June | 36.5°C26 Jun 2003 | -4.7°C12 Jun 2003 | 69 mm23 Jun 2022 | 205 mm2022 · driest 0 mm in 1995 | 30 |
| July | 37.4°C2 Jul 2002 | 3.1°C7 Jul 2018 | 63 mm22 Jul 2008 | 234 mm2008 · driest 0 mm in 1996 | 31 |
| August | 34.8°C31 Aug 2010 | 0.6°C19 Aug 2007 | 65 mm17 Aug 2018 | 199 mm2011 · driest 0 mm in 1996 | 30 |
| September | 35.3°C9 Sep 2002 | -6.0°C24 Sep 2018 | 67 mm9 Sep 2004 | 259 mm2010 · driest 0 mm in 1995 | 30 |
| October | 30.2°C5 Oct 2025 | -13.5°C27 Oct 2018 | 88 mm7 Oct 2023 | 196 mm2023 · driest 0 mm in 1995 | 30 |
| November | 22.2°C10 Nov 2020 | -23.6°C29 Nov 2013 | 29 mm16 Nov 2005 | 109 mm2005 · driest 0 mm in 1995 | 29 |
| December | 12.4°C6 Dec 2001 | -36.5°C14 Dec 2013 | 44 mm18 Dec 2023 | 149 mm2012 · driest 7 mm in 1997 | 30 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 29 | 2 |
| February | 0 | 0 | 27 | 1 |
| March | 0 | 0 | 29 | 2 |
| April | <1 | 0 | 23 | 2 |
| May | 4 | <1 | 10 | 2 |
| June | 11 | 3 | 1 | 3 |
| July | 18 | 4 | 0 | 3 |
| August | 14 | 2 | 0 | 3 |
| September | 4 | <1 | 2 | 3 |
| October | <1 | 0 | 14 | 3 |
| November | 0 | 0 | 25 | 2 |
| December | 0 | 0 | 30 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 34% | 5% | 50% | -10.9–-5.0°C |
| February | 0% | 37% | 4% | 50% | -7.9–-2.4°C |
| March | <1% | 34% | 6% | 45% | -2.0–4.0°C |
| April | 3% | 36% | 8% | 47% | 6.5–11.8°C |
| May | 27% | 37% | 8% | 56% | 15.6–21.0°C |
| June | 54% | 38% | 11% | 57% | 21.5–25.3°C |
| July | 58% | 38% | 12% | 55% | 23.7–27.8°C |
| August | 56% | 37% | 10% | 54% | 22.8–25.7°C |
| September | 34% | 35% | 12% | 46% | 17.3–22.0°C |
| October | 6% | 36% | 10% | 54% | 9.0–14.6°C |
| November | <1% | 38% | 5% | 58% | 0.6–5.3°C |
| December | 0% | 40% | 7% | 58% | -6.7–-1.4°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