August
August · June · July
Canada · 1991–2020
August leads for comfortable weather in Bellevue: typically 23.6°C by day, 11.3°C at night, with 91 mm of rain. Based on measured 1991–2020 NOAA station history.
August · June · July
July · August · June
June · September · May
The weakest month is January, scoring 5 against August’s 77 — days reach only -10.5°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 | -10.5°C | -22.7°C | 59 mm | 10.3 | 8 h 42 | 5 | Strong coverage |
| February | -7.8°C | -21°C | 48 mm | 7.8 | 10 h 05 | 5 | Strong coverage |
| March | -0.9°C | -13.9°C | 54 mm | 8.9 | 11 h 44 | 5 | Strong coverage |
| April | 7.2°C | -3.8°C | 62 mm | 8.7 | 13 h 36 | 5 | Strong coverage |
| May | 17°C | 3.7°C | 64 mm | 9.8 | 15 h 13 | 46 | Strong coverage |
| June | 22.6°C | 9.8°C | 81 mm | 10.6 | 16 h 07 | 73 | Strong coverage |
| July | 24.8°C | 12.6°C | 111 mm | 13 | 15 h 46 | 73 | Strong coverage |
| August | 23.6°C | 11.3°C | 91 mm | 11.5 | 14 h 21 | 77 | Strong coverage |
| September | 18.5°C | 7°C | 86 mm | 10.8 | 12 h 31 | 53 | Strong coverage |
| October | 10.3°C | 1.1°C | 72 mm | 10.5 | 10 h 43 | 18 | Strong coverage |
| November | 2.4°C | -5.5°C | 64 mm | 9.8 | 9 h 06 | 5 | Strong coverage |
| December | -5.4°C | -15.5°C | 72 mm | 11.5 | 8 h 18 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 14.0°C19 Jan 1996 | -48.0°C2 Jan 2014 | 44 mm17 Jan 2022 | 148 mm1997 · driest 6 mm in 2003 | 42 |
| February | 11.0°C14 Feb 1984 | -41.5°C17 Feb 1997 | 38 mm22 Feb 2022 | 93 mm2002 · driest 7 mm in 1987 | 41 |
| March | 22.5°C21 Mar 2012 | -37.5°C2 Mar 2001 | 35 mm28 Mar 1989 | 97 mm2002 · driest 13 mm in 1990 | 43 |
| April | 29.0°C20 Apr 1987 | -27.0°C2 Apr 1994 | 50 mm9 Apr 2000 | 115 mm2019 · driest 7 mm in 2004 | 43 |
| May | 34.5°C28 May 2020 | -7.5°C12 May 2002 | 39 mm2 May 2004 | 150 mm1983 · driest 16 mm in 2007 | 42 |
| June | 37.4°C18 Jun 2020 | -3.5°C4 Jun 2002 | 63 mm22 Jun 1981 | 142 mm2012 · driest 33 mm in 2021 | 43 |
| July | 36.7°C2 Jul 2018 | 1.5°C8 Jul 2021 | 58 mm1 Jul 1999 | 235 mm1996 · driest 31 mm in 2010 | 43 |
| August | 34.5°C31 Aug 2010 | -1.0°C27 Aug 1987 | 61 mm21 Aug 2011 | 202 mm2011 · driest 27 mm in 1983 | 42 |
| September | 35.5°C1 Sep 2010 | -7.0°C28 Sep 2000 | 91 mm22 Sep 1989 | 192 mm2006 · driest 28 mm in 1984 | 41 |
| October | 29.0°C9 Oct 2011 | -11.0°C31 Oct 2020 | 54 mm21 Oct 2023 | 179 mm2023 · driest 14 mm in 1994 | 40 |
| November | 22.3°C10 Nov 2020 | -26.5°C30 Nov 1995 | 37 mm6 Nov 1981 | 116 mm2003 · driest 8 mm in 2012 | 42 |
| December | 11.5°C6 Dec 2001 | -44.5°C29 Dec 1993 | 42 mm18 Dec 2023 | 136 mm2003 · driest 12 mm in 2002 | 42 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | 2 | 9 |
| February | 0 | 0 | 27 | 2 | 7 |
| March | 0 | 0 | 29 | 2 | 7 |
| April | <1 | 0 | 24 | 2 | 3 |
| May | 4 | <1 | 8 | 2 | <1 |
| June | 10 | 3 | <1 | 3 | 0 |
| July | 15 | 3 | 0 | 4 | 0 |
| August | 11 | 2 | <1 | 3 | 0 |
| September | 4 | <1 | 3 | 3 | 0 |
| October | <1 | 0 | 14 | 2 | <1 |
| November | 0 | 0 | 25 | 2 | 5 |
| December | 0 | 0 | 30 | 2 | 10 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 32% | 6% | 41% | -14.3–-6.6°C |
| February | 0% | 27% | 6% | 31% | -10.6–-3.7°C |
| March | <1% | 27% | 5% | 30% | -3.7–2.3°C |
| April | 2% | 29% | 7% | 35% | 4.9–10.3°C |
| May | 24% | 31% | 8% | 39% | 14.6–19.2°C |
| June | 49% | 36% | 8% | 49% | 20.4–23.9°C |
| July | 55% | 41% | 11% | 60% | 23.4–26.2°C |
| August | 53% | 36% | 8% | 46% | 21.9–25.0°C |
| September | 25% | 36% | 8% | 50% | 16.7–20.8°C |
| October | 4% | 34% | 7% | 44% | 8.1–12.8°C |
| November | <1% | 33% | 7% | 43% | -0.7–4.7°C |
| December | 0% | 36% | 7% | 45% | -9.6–-2.9°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