August
August · July · June
Canada · 1991–2020
August leads for comfortable weather in Les Rivières: typically 24.2°C by day, 13.8°C at night, with 103 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 80 — days reach only -6.6°C, 31° 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 | -6.6°C | -15.1°C | 71 mm | 13.1 | 8 h 55 | 5 | Good coverage |
| February | -4.5°C | -14.1°C | 74 mm | 12.6 | 10 h 13 | 5 | Good coverage |
| March | 0.8°C | -8.4°C | 79 mm | 12.5 | 11 h 45 | 5 | Good coverage |
| April | 8.5°C | -0.5°C | 100 mm | 13.1 | 13 h 31 | 5 | Good coverage |
| May | 17.4°C | 6.6°C | 97 mm | 12.7 | 15 h 00 | 46 | Good coverage |
| June | 22.3°C | 11.5°C | 112 mm | 14.3 | 15 h 50 | 67 | Good coverage |
| July | 25.3°C | 14.8°C | 110 mm | 13.3 | 15 h 31 | 76 | Good coverage |
| August | 24.2°C | 13.8°C | 103 mm | 11.7 | 14 h 12 | 80 | Good coverage |
| September | 19.7°C | 9.3°C | 106 mm | 11 | 12 h 30 | 59 | Good coverage |
| October | 11.4°C | 3.3°C | 125 mm | 13.2 | 10 h 48 | 15 | Good coverage |
| November | 3.9°C | -2.7°C | 86 mm | 13.1 | 9 h 18 | 5 | Good coverage |
| December | -3°C | -10°C | 105 mm | 15.3 | 8 h 33 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 11.5°C12 Jan 2018 | -33.8°C26 Jan 2009 | 56 mm18 Jan 2006 | 153 mm2006 · driest 21 mm in 2016 | 29 |
| February | 12.0°C27 Feb 2000 | -31.0°C4 Feb 2023 | 31 mm17 Feb 2022 | 135 mm2016 · driest 21 mm in 2015 | 29 |
| March | 20.4°C21 Mar 2012 | -27.7°C7 Mar 2003 | 66 mm7 Mar 2022 | 179 mm2016 · driest 42 mm in 2017 | 29 |
| April | 27.4°C16 Apr 2012 | -15.6°C6 Apr 2015 | 37 mm27 Apr 2019 | 166 mm2005 · driest 5 mm in 2021 | 29 |
| May | 32.9°C31 May 2018 | -2.3°C11 May 2010 | 71 mm31 May 2013 | 270 mm2013 · driest 0 mm in 2003 | 28 |
| June | 35.3°C26 Jun 2003 | 1.4°C5 Jun 2000 | 54 mm15 Jun 2008 | 209 mm2008 · driest 0 mm in 2003 | 27 |
| July | 34.1°C7 Jul 2010 | 6.5°C2 Jul 2001 | 62 mm10 Jul 2023 | 240 mm2023 · driest 0 mm in 2003 | 28 |
| August | 34.3°C14 Aug 2002 | 5.3°C31 Aug 2003 | 76 mm31 Aug 2005 | 201 mm2011 · driest 0 mm in 2003 | 27 |
| September | 34.3°C9 Sep 2002 | -3.3°C29 Sep 2000 | 60 mm11 Sep 2007 | 207 mm2010 · driest 0 mm in 2003 | 27 |
| October | 27.0°C6 Oct 2025 | -7.2°C31 Oct 2002 | 71 mm15 Oct 2005 | 250 mm2006 · driest 65 mm in 2022 | 27 |
| November | 22.7°C5 Nov 2022 | -18.4°C22 Nov 2018 | 43 mm2 Nov 2017 | 161 mm2003 · driest 7 mm in 1998 | 28 |
| December | 13.6°C1 Dec 2020 | -27.6°C31 Dec 1998 | 53 mm17 Dec 2000 | 221 mm2003 · driest 0 mm in 1998 | 28 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 30 | 2 |
| February | 0 | 0 | 27 | 2 |
| March | 0 | 0 | 28 | 3 |
| April | <1 | 0 | 15 | 4 |
| May | 4 | <1 | <1 | 3 |
| June | 9 | 2 | 0 | 4 |
| July | 17 | 3 | 0 | 3 |
| August | 13 | 2 | 0 | 3 |
| September | 4 | <1 | <1 | 4 |
| October | <1 | 0 | 7 | 4 |
| November | 0 | 0 | 20 | 2 |
| December | 0 | 0 | 29 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 42% | 7% | 61% | -9.3–-4.0°C |
| February | 0% | 45% | 9% | 66% | -6.6–-1.8°C |
| March | <1% | 40% | 9% | 57% | -1.4–3.5°C |
| April | 1% | 43% | 13% | 62% | 6.8–10.7°C |
| May | 22% | 40% | 10% | 59% | 14.8–20.0°C |
| June | 41% | 47% | 14% | 66% | 20.8–24.3°C |
| July | 53% | 43% | 12% | 63% | 23.8–27.0°C |
| August | 57% | 38% | 11% | 52% | 23.0–25.9°C |
| September | 36% | 36% | 12% | 50% | 18.0–21.8°C |
| October | 6% | 42% | 14% | 60% | 9.4–14.3°C |
| November | <1% | 44% | 9% | 67% | 1.7–6.1°C |
| December | 0% | 49% | 12% | 76% | -5.4–-0.1°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