April
April · October · March
United States · 1991–2020
April leads for comfortable weather in Cooper: typically 25.6°C by day, 12.4°C at night, with 101 mm of rain. Based on measured 1991–2020 NOAA station history.
April · October · March
September · May · July
March · November · February
The weakest month is January, scoring 36 against April’s 78 — days reach only 15.3°C, 9° below the 24°C the score treats as ideal, and nights drop to 3.1°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 | 15.3°C | 3.1°C | 109 mm | 7.1 | 10 h 19 | 36 | Strong coverage |
| February | 17.7°C | 5.1°C | 88 mm | 6.9 | 11 h 02 | 50 | Strong coverage |
| March | 21.5°C | 8.6°C | 97 mm | 6.3 | 11 h 54 | 69 | Strong coverage |
| April | 25.6°C | 12.4°C | 101 mm | 6.2 | 12 h 54 | 78 | Strong coverage |
| May | 29.3°C | 17.5°C | 126 mm | 6.4 | 13 h 43 | 62 | Strong coverage |
| June | 33.1°C | 21.6°C | 128 mm | 6.6 | 14 h 10 | 42 | Strong coverage |
| July | 35.1°C | 22.8°C | 69 mm | 5.1 | 14 h | 43 | Strong coverage |
| August | 35.6°C | 22.7°C | 89 mm | 5.2 | 13 h 17 | 38 | Strong coverage |
| September | 32.4°C | 19.5°C | 82 mm | 4.9 | 12 h 19 | 56 | Strong coverage |
| October | 27.2°C | 13.3°C | 111 mm | 5.6 | 11 h 21 | 73 | Strong coverage |
| November | 20.7°C | 7.7°C | 100 mm | 6.2 | 10 h 32 | 64 | Strong coverage |
| December | 16.4°C | 3.9°C | 110 mm | 7.2 | 10 h 08 | 41 | 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 | 30.0°C30 Jan 1911 | -14.4°C11 Jan 1982 | 148 mm29 Jan 1999 | 302 mm1991 · driest 0 mm in 1910 | 89 |
| February | 35.0°C23 Feb 1996 | -17.8°C2 Feb 1951 | 101 mm2 Feb 1910 | 213 mm1992 · driest 2 mm in 2016 | 90 |
| March | 32.8°C21 Mar 1916 | -7.8°C2 Mar 1980 | 159 mm29 Mar 1989 | 226 mm2012 · driest 9 mm in 2011 | 90 |
| April | 35.6°C20 Apr 2011 | -1.1°C9 Apr 1914 | 138 mm27 Apr 2023 | 305 mm2023 · driest 1 mm in 1984 | 91 |
| May | 37.8°C31 May 1911 | 2.8°C4 May 2013 | 134 mm27 May 2016 | 348 mm2024 · driest 0 mm in 1998 | 90 |
| June | 41.1°C25 Jun 2009 | 8.9°C3 Jun 1970 | 231 mm8 Jun 2001 | 398 mm2001 · driest 8 mm in 1998 | 90 |
| July | 43.3°C26 Jul 1954 | 12.2°C16 Jul 1967 | 114 mm25 Jul 1996 | 198 mm1979 · driest 0 mm in 2000 | 90 |
| August | 45.6°C18 Aug 1909 | 12.8°C30 Aug 1992 | 158 mm30 Aug 1974 | 262 mm2017 · driest 0 mm in 1999 | 88 |
| September | 43.3°C5 Sep 2000 | 3.9°C30 Sep 1967 | 161 mm20 Sep 1979 | 277 mm1974 · driest 1 mm in 2005 | 89 |
| October | 38.3°C4 Oct 1911 | -2.8°C31 Oct 1993 | 183 mm15 Oct 1957 | 397 mm1957 · driest 0 mm in 2024 | 87 |
| November | 33.3°C4 Nov 2024 | -8.3°C29 Nov 1976 | 122 mm19 Nov 1907 | 368 mm2000 · driest 2 mm in 1949 | 88 |
| December | 33.9°C10 Dec 2007 | -17.8°C24 Dec 1989 | 154 mm26 Dec 1904 | 295 mm2018 · driest 8 mm in 1950 | 90 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 2 | 0 | 10 | 3 |
| February | 3 | <1 | 5 | 3 |
| March | 10 | <1 | 2 | 3 |
| April | 18 | 4 | 0 | 3 |
| May | 27 | 15 | 0 | 3 |
| June | 29 | 25 | 0 | 3 |
| July | 30 | 29 | 0 | 2 |
| August | 30 | 29 | 0 | 3 |
| September | 28 | 23 | 0 | 2 |
| October | 22 | 11 | <1 | 3 |
| November | 8 | <1 | 4 | 3 |
| December | 2 | 0 | 8 | 3 |
The best month has moved. On the 1961–1990 numbers the strongest month here was April (scoring 81); on 2011–2025 it is October (78). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 23% | 22% | 10% | 21% | 11.9–18.4°C |
| February | 34% | 23% | 10% | 22% | 13.9–20.5°C |
| March | 56% | 20% | 9% | 14% | 18.9–24.2°C |
| April | 72% | 20% | 10% | 17% | 23.5–27.3°C |
| May | 77% | 21% | 12% | 19% | 27.2–30.5°C |
| June | 79% | 19% | 9% | 19% | 30.8–35.1°C |
| July | 82% | 17% | 8% | 15% | 32.5–37.3°C |
| August | 83% | 16% | 7% | 14% | 32.9–37.7°C |
| September | 81% | 17% | 8% | 15% | 30.0–34.8°C |
| October | 78% | 16% | 8% | 14% | 25.1–29.5°C |
| November | 51% | 19% | 10% | 18% | 18.0–23.4°C |
| December | 25% | 22% | 11% | 22% | 13.5–18.6°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