June
June · August · September
Canada · 1991–2020
June leads for comfortable weather in Welland: typically 24.6°C by day, 13.8°C at night, with 85 mm of rain. Based on measured 1991–2020 NOAA station history.
June · August · September
July · August · June
May · September · June
The weakest month is January, scoring 5 against June’s 82 — days reach only 0.2°C, 24° 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 | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 0.2°C | -7.6°C | 91 mm | 13.8 | 3.0°C | 9 h 20 | 5 | Good coverage |
| February | 1°C | -7.5°C | 42 mm | 7.9 | 1.3°C | 10 h 27 | 5 | Good coverage |
| March | 6°C | -3.6°C | 71 mm | 10.3 | 1.3°C | 11 h 47 | 5 | Good coverage |
| April | 13°C | 2°C | 78 mm | 11.1 | 3.2°C | 13 h 20 | 27 | Good coverage |
| May | 19.7°C | 7.8°C | 91 mm | 11.9 | 8.9°C | 14 h 37 | 57 | Good coverage |
| June | 24.6°C | 13.8°C | 85 mm | 10 | 16.9°C | 15 h 20 | 82 | Good coverage |
| July | 27.1°C | 16.7°C | 88 mm | 9.5 | 22.2°C | 15 h 03 | 73 | Good coverage |
| August | 26.3°C | 15.8°C | 85 mm | 9.8 | 23.2°C | 13 h 56 | 78 | Good coverage |
| September | 22.3°C | 11.8°C | 96 mm | 9.5 | 20.8°C | 12 h 26 | 74 | Good coverage |
| October | 15.2°C | 5.5°C | 94 mm | 11.1 | 15.7°C | 10 h 58 | 38 | Good coverage |
| November | 8.8°C | 0.7°C | 88 mm | 11.9 | 10.2°C | 9 h 40 | 9 | Good coverage |
| December | 2.8°C | -4.4°C | 79 mm | 11.8 | 6.3°C | 9 h 01 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 20.0°C25 Jan 1950 | -32.8°C25 Jan 1884 | 79 mm22 Jan 1902 | 168 mm1904 · driest 22 mm in 1946 | 129 |
| February | 20.5°C26 Feb 2000 | -31.1°C9 Feb 1934 | 61 mm12 Feb 1894 | 199 mm1893 · driest 0 mm in 1992 | 130 |
| March | 27.0°C31 Mar 1998 | -27.8°C4 Mar 1873 | 81 mm1 Mar 1900 | 180 mm1900 · driest 1 mm in 2013 | 135 |
| April | 32.5°C28 Apr 1990 | -18.3°C1 Apr 1923 | 56 mm3 Apr 1885 | 143 mm1929 · driest 16 mm in 2003 | 131 |
| May | 34.0°C30 May 2006 | -6.1°C6 May 1932 | 52 mm19 May 1894 | 196 mm1894 · driest 10 mm in 1934 | 131 |
| June | 36.1°C29 Jun 1933 | 1.1°C11 Jun 1972 | 93 mm25 Jun 1968 | 208 mm1928 · driest 16 mm in 1909 | 130 |
| July | 37.8°C4 Jul 1911 | 3.9°C11 Jul 1945 | 141 mm3 Jul 1892 | 207 mm2004 · driest 6 mm in 1933 | 132 |
| August | 37.8°C26 Aug 1948 | 0.5°C29 Aug 1982 | 96 mm1 Aug 2008 | 178 mm2008 · driest 0 mm in 1899 | 130 |
| September | 35.0°C6 Sep 1881 | -2.2°C10 Sep 1883 | 118 mm30 Sep 1959 | 240 mm1977 · driest 2 mm in 1877 | 130 |
| October | 32.2°C2 Oct 1927 | -8.9°C29 Oct 1965 | 93 mm5 Oct 1995 | 219 mm1995 · driest 5 mm in 1924 | 130 |
| November | 25.6°C3 Nov 1961 | -20.0°C26 Nov 1880 | 61 mm2 Nov 1999 | 234 mm1985 · driest 8 mm in 1976 | 133 |
| December | 20.6°C4 Dec 1941 | -27.8°C27 Dec 1925 | 51 mm5 Dec 1898 | 181 mm1990 · driest 19 mm in 2010 | 130 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 25 | 3 | 9 |
| February | 0 | 0 | 24 | 1 | 5 |
| March | <1 | 0 | 21 | 2 | 4 |
| April | <1 | 0 | 11 | 2 | <1 |
| May | 6 | <1 | 2 | 3 | 0 |
| June | 15 | 3 | 0 | 3 | 0 |
| July | 21 | 6 | 0 | 3 | 0 |
| August | 20 | 4 | 0 | 3 | 0 |
| September | 9 | 1 | 0 | 3 | 0 |
| October | <1 | 0 | 4 | 3 | <1 |
| November | 0 | 0 | 13 | 3 | 2 |
| December | 0 | 0 | 23 | 3 | 5 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 39% | 8% | 54% | -3.8–3.0°C |
| February | 0% | 34% | 8% | 46% | -3.4–2.5°C |
| March | 1% | 33% | 7% | 44% | 1.5–8.3°C |
| April | 10% | 32% | 8% | 40% | 9.6–14.8°C |
| May | 34% | 31% | 8% | 39% | 16.6–21.7°C |
| June | 65% | 27% | 8% | 27% | 22.5–26.6°C |
| July | 74% | 25% | 8% | 26% | 25.4–29.3°C |
| August | 73% | 25% | 8% | 25% | 24.2–28.0°C |
| September | 52% | 26% | 10% | 30% | 20.0–24.4°C |
| October | 17% | 29% | 9% | 33% | 12.9–17.7°C |
| November | 1% | 35% | 8% | 48% | 5.3–10.5°C |
| December | 0% | 36% | 9% | 50% | -1.2–4.5°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