July
July · August · September
Canada · 1991–2020
July leads for comfortable weather in Royalties: typically 22.9°C by day, 7.8°C at night, with 53 mm of rain. Based on measured 1991–2020 NOAA station history.
July · August · September
July · August · September
July · September · August
The weakest month is January, scoring 5 against July’s 77 — days reach only -0.8°C, 25° below the 24°C the score treats as ideal, and nights drop to -13.6°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 | -0.8°C | -13.6°C | 20 mm | 4.2 | 8 h 26 | 5 | Good coverage |
| February | 1.8°C | -11°C | 21 mm | 4.4 | 9 h 57 | 5 | Good coverage |
| March | 4.8°C | -8.5°C | 32 mm | 7 | 11 h 42 | 5 | Good coverage |
| April | 10.9°C | -2.8°C | 38 mm | 5.9 | 13 h 43 | 22 | Good coverage |
| May | 15.5°C | 1.5°C | 84 mm | 9.5 | 15 h 27 | 35 | Good coverage |
| June | 18.6°C | 5.5°C | 137 mm | 11.9 | 16 h 26 | 43 | Good coverage |
| July | 22.9°C | 7.8°C | 53 mm | 8 | 16 h 02 | 77 | Good coverage |
| August | 23.1°C | 7.1°C | 65 mm | 9 | 14 h 31 | 73 | Good coverage |
| September | 18.1°C | 3°C | 53 mm | 7.5 | 12 h 33 | 52 | Good coverage |
| October | 11.6°C | -1.7°C | 26 mm | 4.8 | 10 h 37 | 27 | Good coverage |
| November | 4.4°C | -7.5°C | 30 mm | 5.2 | 8 h 53 | 5 | Good coverage |
| December | 0.7°C | -11.7°C | 18 mm | 4 | 8 h 01 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 20.6°C30 Jan 1931 | -45.0°C27 Jan 1929 | 36 mm15 Jan 1921 | 51 mm1950 · driest 0 mm in 1986 | 96 |
| February | 23.0°C27 Feb 1992 | -43.3°C14 Feb 1923 | 31 mm11 Feb 1928 | 50 mm1948 · driest 0 mm in 1998 | 94 |
| March | 22.2°C29 Mar 1966 | -40.6°C7 Mar 1951 | 48 mm12 Mar 1931 | 86 mm1930 · driest 0 mm in 1922 | 96 |
| April | 30.0°C26 Apr 1910 | -30.0°C2 Apr 1954 | 96 mm25 Apr 1932 | 133 mm1920 · driest 0 mm in 1933 | 93 |
| May | 33.3°C29 May 1934 | -19.4°C1 May 1954 | 77 mm23 May 1927 | 164 mm1942 · driest 4 mm in 1934 | 93 |
| June | 35.0°C23 Jun 1936 | -4.4°C12 Jun 1919 | 161 mm19 Jun 1926 | 397 mm2005 · driest 3 mm in 1919 | 94 |
| July | 37.2°C22 Jul 1936 | -3.9°C29 Jul 1933 | 59 mm29 Jul 1942 | 145 mm1942 · driest 0 mm in 1933 | 95 |
| August | 35.6°C27 Aug 1929 | -7.0°C13 Aug 1985 | 73 mm17 Aug 1902 | 172 mm1951 · driest 0 mm in 1940 | 96 |
| September | 33.9°C3 Sep 1950 | -16.1°C25 Sep 1934 | 73 mm10 Sep 2005 | 153 mm1940 · driest 0 mm in 1922 | 96 |
| October | 31.7°C11 Oct 1934 | -29.4°C31 Oct 1935 | 38 mm17 Oct 1929 | 90 mm1946 · driest 0 mm in 1963 | 96 |
| November | 24.4°C6 Nov 1949 | -37.0°C27 Nov 1985 | 36 mm5 Nov 1924 | 84 mm1996 · driest 0 mm in 1927 | 96 |
| December | 20.0°C27 Dec 1999 | -45.0°C29 Dec 1968 | 40 mm14 Dec 1979 | 80 mm1975 · driest 0 mm in 1935 | 97 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | <1 | 5 |
| February | 0 | 0 | 25 | <1 | 5 |
| March | 0 | 0 | 26 | <1 | 7 |
| April | 0 | 0 | 23 | 1 | 5 |
| May | 2 | 0 | 13 | 3 | 3 |
| June | 3 | <1 | 2 | 5 | 0 |
| July | 11 | 2 | <1 | 2 | 0 |
| August | 13 | 3 | <1 | 2 | <1 |
| September | 5 | <1 | 8 | 1 | <1 |
| October | <1 | 0 | 19 | <1 | 3 |
| November | 0 | 0 | 26 | <1 | 6 |
| December | 0 | 0 | 28 | <1 | 5 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 14% | 1% | 10% | -9.6–5.0°C |
| February | <1% | 16% | 2% | 15% | -6.1–5.7°C |
| March | <1% | 18% | 2% | 15% | -0.9–7.5°C |
| April | 8% | 19% | 4% | 18% | 6.5–14.2°C |
| May | 25% | 24% | 6% | 28% | 13.4–18.8°C |
| June | 44% | 29% | 10% | 34% | 17.7–22.5°C |
| July | 70% | 21% | 5% | 21% | 21.3–26.5°C |
| August | 65% | 21% | 5% | 21% | 20.0–26.3°C |
| September | 40% | 20% | 5% | 18% | 14.6–21.2°C |
| October | 16% | 12% | 2% | 7% | 9.2–16.2°C |
| November | 1% | 13% | 2% | 9% | -0.6–9.1°C |
| December | 0% | 12% | 2% | 9% | -6.8–4.9°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