August
August · July · June
Canada · 1991–2020
August leads for comfortable weather in Richmond: typically 24.6°C by day, 13.1°C at night, with 129 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 74 — days reach only -4.8°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 | -4.8°C | -15.3°C | 91 mm | 14.3 | 9 h 03 | 5 | Strong coverage |
| February | -3.1°C | -14.7°C | 74 mm | 11.7 | 10 h 17 | 5 | Strong coverage |
| March | 2.7°C | -8.4°C | 84 mm | 11.4 | 11 h 46 | 5 | Strong coverage |
| April | 10.6°C | -0.8°C | 92 mm | 11.7 | 13 h 27 | 11 | Strong coverage |
| May | 18.8°C | 6°C | 101 mm | 12.9 | 14 h 53 | 48 | Strong coverage |
| June | 23.4°C | 11.3°C | 119 mm | 12.8 | 15 h 41 | 71 | Strong coverage |
| July | 25.7°C | 14.2°C | 128 mm | 12.3 | 15 h 22 | 72 | Strong coverage |
| August | 24.6°C | 13.1°C | 129 mm | 11.7 | 14 h 07 | 74 | Strong coverage |
| September | 20.3°C | 8.7°C | 111 mm | 11.5 | 12 h 29 | 58 | Strong coverage |
| October | 12.9°C | 2.8°C | 108 mm | 13 | 10 h 51 | 22 | Strong coverage |
| November | 5.7°C | -2.9°C | 88 mm | 13 | 9 h 25 | 5 | Strong coverage |
| December | -1.1°C | -9.5°C | 105 mm | 14.6 | 8 h 42 | 5 | Strong coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 16.0°C19 Jan 1996 | -42.8°C9 Jan 1887 | 50 mm11 Jan 2020 | 160 mm1887 · driest 10 mm in 1980 | 74 |
| February | 17.2°C21 Feb 2018 | -42.0°C7 Feb 1993 | 40 mm14 Feb 2007 | 138 mm2022 · driest 16 mm in 1987 | 72 |
| March | 26.0°C21 Mar 2012 | -37.8°C5 Mar 1900 | 46 mm11 Mar 1883 | 195 mm1896 · driest 26 mm in 1984 | 75 |
| April | 30.0°C3 Apr 2010 | -25.0°C1 Apr 1887 | 37 mm27 Apr 2010 | 167 mm1996 · driest 9 mm in 2004 | 75 |
| May | 34.4°C27 May 2020 | -8.3°C2 May 1903 | 61 mm27 May 2022 | 196 mm2013 · driest 9 mm in 1903 | 74 |
| June | 33.5°C28 Jun 2005 | -1.7°C8 Jun 1879 | 59 mm8 Jun 1987 | 245 mm1892 · driest 39 mm in 1902 | 75 |
| July | 35.6°C17 Jul 1901 | 0.0°C12 Jul 1898 | 63 mm25 Jul 1996 | 248 mm1996 · driest 19 mm in 2017 | 73 |
| August | 34.4°C22 Aug 1899 | 0.0°C25 Aug 1880 | 88 mm28 Aug 2011 | 239 mm2008 · driest 10 mm in 2014 | 74 |
| September | 33.9°C4 Sep 1900 | -6.1°C12 Sep 1897 | 69 mm5 Sep 1973 | 203 mm2010 · driest 17 mm in 1878 | 73 |
| October | 29.4°C4 Oct 2023 | -16.1°C30 Oct 1897 | 77 mm7 Oct 2005 | 282 mm2005 · driest 22 mm in 1897 | 72 |
| November | 23.9°C5 Nov 2022 | -27.8°C28 Nov 1881 | 53 mm27 Nov 2009 | 210 mm1983 · driest 20 mm in 1991 | 73 |
| December | 22.2°C15 Dec 1901 | -40.0°C26 Dec 1879 | 53 mm14 Dec 2003 | 255 mm2003 · driest 28 mm in 1984 | 72 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | 3 | 12 |
| February | 0 | 0 | 27 | 3 | 10 |
| March | <1 | 0 | 27 | 3 | 7 |
| April | <1 | <1 | 18 | 3 | 2 |
| May | 5 | <1 | 4 | 3 | <1 |
| June | 12 | 2 | <1 | 4 | 0 |
| July | 18 | 3 | 0 | 4 | 0 |
| August | 15 | 2 | 0 | 4 | 0 |
| September | 5 | <1 | 1 | 4 | 0 |
| October | <1 | 0 | 10 | 3 | <1 |
| November | 0 | 0 | 21 | 3 | 4 |
| December | 0 | 0 | 28 | 4 | 10 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 41% | 9% | 57% | -8.6–-1.9°C |
| February | 0% | 35% | 8% | 46% | -6.6–-0.7°C |
| March | <1% | 34% | 8% | 45% | -1.1–5.9°C |
| April | 6% | 34% | 9% | 42% | 7.6–13.0°C |
| May | 30% | 37% | 10% | 50% | 16.2–21.5°C |
| June | 51% | 39% | 14% | 53% | 21.4–25.1°C |
| July | 60% | 37% | 13% | 50% | 24.0–27.4°C |
| August | 58% | 35% | 12% | 46% | 22.7–26.0°C |
| September | 33% | 34% | 12% | 46% | 17.5–21.8°C |
| October | 8% | 37% | 10% | 50% | 10.1–15.4°C |
| November | <1% | 40% | 11% | 56% | 2.6–7.9°C |
| December | 0% | 41% | 10% | 56% | -4.9–1.6°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