April
April · October · May
United States · 1991–2020
April leads for comfortable weather in Brock: typically 23.8°C by day, 11.3°C at night, with 83 mm of rain. Based on measured 1991–2020 NOAA station history.
April · October · May
September · June · August
March · November · April
The weakest month is January, scoring 31 against April’s 84 — days reach only 12°C, 12° below the 24°C the score treats as ideal, and nights drop to 0.2°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 | 12°C | 0.2°C | 48 mm | 3.9 | 10 h 06 | 31 | Good coverage |
| February | 15.1°C | 2.8°C | 56 mm | 4.4 | 10 h 54 | 45 | Good coverage |
| March | 19.1°C | 6.7°C | 73 mm | 5.3 | 11 h 52 | 61 | Good coverage |
| April | 23.8°C | 11.3°C | 83 mm | 5.3 | 12 h 59 | 84 | Good coverage |
| May | 27.6°C | 16.6°C | 145 mm | 7.8 | 13 h 55 | 66 | Good coverage |
| June | 31.5°C | 20.7°C | 118 mm | 6.3 | 14 h 25 | 50 | Good coverage |
| July | 34.7°C | 23.1°C | 69 mm | 4.2 | 14 h 13 | 44 | Good coverage |
| August | 34.6°C | 22.7°C | 68 mm | 4.4 | 13 h 25 | 45 | Good coverage |
| September | 30.2°C | 18.3°C | 96 mm | 4.8 | 12 h 21 | 63 | Good coverage |
| October | 25°C | 12.5°C | 99 mm | 5 | 11 h 16 | 81 | Good coverage |
| November | 17.9°C | 6°C | 56 mm | 4 | 10 h 20 | 60 | Good coverage |
| December | 13°C | 1.4°C | 66 mm | 4.3 | 9 h 53 | 34 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 31.7°C31 Jan 1911 | -22.2°C18 Jan 1930 | 160 mm21 Jan 1916 | 292 mm1916 · driest 0 mm in 1986 | 109 |
| February | 35.0°C24 Feb 1918 | -19.4°C13 Feb 1905 | 100 mm20 Feb 1997 | 181 mm1997 · driest 0 mm in 1916 | 107 |
| March | 36.7°C21 Mar 1916 | -13.9°C12 Mar 1948 | 95 mm27 Mar 1977 | 213 mm1945 · driest 1 mm in 1925 | 106 |
| April | 38.3°C18 Apr 1925 | -3.9°C2 Apr 1936 | 187 mm12 Apr 1967 | 344 mm1967 · driest 7 mm in 2005 | 106 |
| May | 40.6°C28 May 1927 | 0.0°C1 May 1903 | 157 mm9 May 1993 | 406 mm1943 · driest 0 mm in 1996 | 106 |
| June | 44.4°C28 Jun 1980 | 7.2°C16 Jun 1983 | 104 mm11 Jun 1995 | 282 mm2004 · driest 0 mm in 1925 | 105 |
| July | 43.9°C31 Jul 1914 | 12.2°C5 Jul 1915 | 156 mm19 Jul 1919 | 227 mm1926 · driest 0 mm in 1983 | 105 |
| August | 45.6°C11 Aug 1936 | 10.0°C28 Aug 1906 | 105 mm16 Aug 1940 | 298 mm1974 · driest 0 mm in 2000 | 106 |
| September | 43.3°C2 Sep 2000 | 1.7°C27 Sep 1942 | 126 mm20 Sep 1918 | 268 mm1973 · driest 0 mm in 1952 | 107 |
| October | 38.9°C1 Oct 1938 | -7.8°C30 Oct 1917 | 165 mm13 Oct 1981 | 428 mm1981 · driest 0 mm in 1921 | 105 |
| November | 33.9°C7 Nov 1908 | -10.6°C14 Nov 1940 | 104 mm5 Nov 1913 | 259 mm1902 · driest 0 mm in 1949 | 105 |
| December | 33.3°C30 Dec 1951 | -22.2°C23 Dec 1989 | 148 mm23 Dec 1932 | 223 mm1932 · driest 0 mm in 1908 | 106 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | <1 | 0 | 15 | 2 |
| February | 2 | <1 | 7 | 2 |
| March | 6 | <1 | 3 | 2 |
| April | 14 | 2 | <1 | 2 |
| May | 23 | 9 | 0 | 4 |
| June | 28 | 22 | 0 | 4 |
| July | 30 | 28 | 0 | 2 |
| August | 30 | 28 | 0 | 2 |
| September | 26 | 17 | 0 | 3 |
| October | 17 | 5 | <1 | 3 |
| November | 4 | 0 | 4 | 2 |
| December | <1 | 0 | 11 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 14% | 14% | 5% | 10% | 8.9–15.5°C |
| February | 25% | 17% | 6% | 14% | 11.2–18.2°C |
| March | 47% | 17% | 7% | 14% | 15.9–22.8°C |
| April | 68% | 21% | 10% | 20% | 22.2–26.5°C |
| May | 73% | 26% | 13% | 30% | 26.1–29.7°C |
| June | 79% | 21% | 10% | 21% | 30.2–34.9°C |
| July | 86% | 14% | 6% | 11% | 32.6–37.8°C |
| August | 86% | 15% | 7% | 12% | 32.8–37.9°C |
| September | 82% | 17% | 9% | 13% | 28.7–33.8°C |
| October | 76% | 16% | 8% | 15% | 23.3–28.5°C |
| November | 44% | 15% | 6% | 11% | 15.9–21.3°C |
| December | 15% | 14% | 6% | 9% | 9.9–15.8°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