August
August · July · June
Canada · 1991–2020
August leads for comfortable weather in Valley Waters: typically 25.2°C by day, 12.8°C at night, with 70 mm of rain. Based on measured 1991–2020 NOAA station history.
August · July · June
July · August · June
September · June · August
The weakest month is January, scoring 5 against August’s 82 — days reach only -2.8°C, 27° 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 | -2.8°C | -13.8°C | 114 mm | 11.3 | 9 h 03 | 5 | Good coverage |
| February | -1.2°C | -12.4°C | 81 mm | 9.3 | 10 h 17 | 5 | Good coverage |
| March | 3.6°C | -6.6°C | 117 mm | 11.6 | 11 h 46 | 5 | Good coverage |
| April | 10.3°C | -0.3°C | 87 mm | 11.7 | 13 h 27 | 12 | Good coverage |
| May | 17.4°C | 5.1°C | 92 mm | 12 | 14 h 53 | 44 | Good coverage |
| June | 22.8°C | 10.3°C | 90 mm | 11.3 | 15 h 41 | 73 | Good coverage |
| July | 25.7°C | 13.8°C | 75 mm | 9.5 | 15 h 22 | 81 | Good coverage |
| August | 25.2°C | 12.8°C | 70 mm | 9.1 | 14 h 07 | 82 | Good coverage |
| September | 20.8°C | 8.8°C | 114 mm | 9.8 | 12 h 29 | 61 | Good coverage |
| October | 13.7°C | 3.1°C | 119 mm | 11.3 | 10 h 51 | 25 | Good coverage |
| November | 7.2°C | -1.5°C | 115 mm | 12.8 | 9 h 25 | 5 | Good coverage |
| December | 1°C | -8.5°C | 108 mm | 12.1 | 8 h 42 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 15.5°C14 Jan 2006 | -44.4°C15 Jan 1957 | 97 mm6 Jan 1909 | 240 mm1978 · driest 13 mm in 1943 | 112 |
| February | 15.6°C16 Feb 1939 | -38.9°C10 Feb 1948 | 86 mm3 Feb 1970 | 219 mm1920 · driest 3 mm in 1927 | 112 |
| March | 24.5°C31 Mar 1998 | -35.6°C4 Mar 1938 | 98 mm18 Mar 1902 | 228 mm1902 · driest 20 mm in 1915 | 112 |
| April | 29.4°C25 Apr 1942 | -22.2°C2 Apr 1923 | 99 mm1 Apr 1962 | 176 mm1962 · driest 8 mm in 1929 | 112 |
| May | 35.0°C22 May 1992 | -7.2°C1 May 1977 | 72 mm29 May 1906 | 219 mm1990 · driest 9 mm in 1928 | 112 |
| June | 34.4°C28 Jun 1946 | -5.0°C3 Jun 1927 | 86 mm4 Jun 2006 | 219 mm2006 · driest 21 mm in 1928 | 111 |
| July | 35.6°C15 Jul 1952 | 0.0°C2 Jul 1965 | 95 mm22 Jul 1899 | 200 mm1899 · driest 13 mm in 1965 | 111 |
| August | 37.2°C18 Aug 1935 | -1.1°C31 Aug 1965 | 95 mm27 Aug 1922 | 204 mm1922 · driest 4 mm in 1960 | 111 |
| September | 33.3°C1 Sep 1942 | -6.7°C22 Sep 1950 | 113 mm22 Sep 1999 | 258 mm1999 · driest 2 mm in 1926 | 111 |
| October | 29.4°C13 Oct 1930 | -15.0°C22 Oct 1974 | 91 mm25 Oct 1933 | 233 mm2005 · driest 12 mm in 1928 | 112 |
| November | 23.3°C6 Nov 1938 | -25.0°C15 Nov 1905 | 77 mm3 Nov 2007 | 199 mm1957 · driest 9 mm in 1928 | 112 |
| December | 18.0°C12 Dec 2008 | -37.2°C13 Dec 1902 | 59 mm15 Dec 1919 | 218 mm1990 · driest 5 mm in 1928 | 111 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | 4 | 8 |
| February | 0 | 0 | 27 | 3 | 7 |
| March | 0 | 0 | 27 | 4 | 7 |
| April | <1 | 0 | 17 | 3 | 3 |
| May | 3 | <1 | 4 | 3 | <1 |
| June | 11 | 2 | <1 | 3 | 0 |
| July | 20 | 3 | 0 | 2 | 0 |
| August | 17 | 3 | 0 | 2 | 0 |
| September | 5 | <1 | 2 | 4 | 0 |
| October | <1 | 0 | 9 | 4 | <1 |
| November | 0 | 0 | 19 | 4 | 3 |
| December | 0 | 0 | 28 | 4 | 7 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 31% | 12% | 38% | -6.2–0.0°C |
| February | 0% | 29% | 11% | 34% | -4.6–0.9°C |
| March | 0% | 29% | 11% | 32% | 0.4–5.6°C |
| April | 3% | 29% | 9% | 32% | 7.4–11.7°C |
| May | 25% | 29% | 8% | 34% | 14.5–18.8°C |
| June | 53% | 30% | 9% | 35% | 20.4–23.5°C |
| July | 71% | 26% | 8% | 26% | 23.4–26.8°C |
| August | 71% | 24% | 8% | 24% | 22.1–26.2°C |
| September | 38% | 26% | 10% | 27% | 17.8–21.6°C |
| October | 8% | 27% | 10% | 32% | 11.7–15.6°C |
| November | <1% | 32% | 12% | 42% | 4.2–8.8°C |
| December | 0% | 32% | 12% | 39% | -3.8–2.6°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