October
October · May · April
United States · 1991–2020
October leads for comfortable weather in Grantville: typically 23.4°C by day, 9.9°C at night, with 78 mm of rain. Based on measured 1991–2020 NOAA station history.
October · May · April
August · June · July
October · April · March
The weakest month is January, scoring 18 against October’s 80 — days reach only 12.6°C, 11° 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 | 12.6°C | 0.2°C | 130 mm | 8.6 | 10 h 10 | 18 | Good coverage |
| February | 15°C | 1.9°C | 132 mm | 8.8 | 10 h 57 | 28 | Good coverage |
| March | 19.5°C | 5.2°C | 129 mm | 8.4 | 11 h 53 | 49 | Good coverage |
| April | 23.5°C | 8.6°C | 100 mm | 7.4 | 12 h 58 | 74 | Good coverage |
| May | 27.2°C | 13.9°C | 96 mm | 7.9 | 13 h 51 | 75 | Good coverage |
| June | 30.1°C | 18.2°C | 100 mm | 9.5 | 14 h 20 | 59 | Strong coverage |
| July | 31.7°C | 20.3°C | 119 mm | 9 | 14 h 09 | 48 | Strong coverage |
| August | 31.2°C | 19.8°C | 106 mm | 8 | 13 h 23 | 53 | Good coverage |
| September | 28.5°C | 16.3°C | 108 mm | 6.4 | 12 h 20 | 70 | Good coverage |
| October | 23.4°C | 9.9°C | 78 mm | 5.6 | 11 h 18 | 80 | Good coverage |
| November | 18.5°C | 4.7°C | 118 mm | 7 | 10 h 24 | 48 | Good coverage |
| December | 13.4°C | 1.2°C | 124 mm | 8.7 | 9 h 58 | 23 | Good 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 | 26.7°C12 Jan 1949 | -22.2°C21 Jan 1985 | 97 mm25 Jan 1964 | 324 mm1936 · driest 12 mm in 2007 | 118 |
| February | 28.9°C23 Feb 2018 | -16.1°C15 Feb 1905 | 144 mm11 Feb 1995 | 332 mm1961 · driest 15 mm in 1978 | 118 |
| March | 33.3°C19 Mar 1908 | -11.7°C5 Mar 1960 | 155 mm16 Mar 1976 | 416 mm1929 · driest 17 mm in 1918 | 117 |
| April | 35.0°C24 Apr 1925 | -6.7°C1 Apr 1942 | 132 mm7 Apr 1936 | 267 mm1938 · driest 6 mm in 1986 | 117 |
| May | 36.7°C29 May 1916 | 1.1°C10 May 1923 | 91 mm21 May 1901 | 250 mm1901 · driest 12 mm in 1962 | 117 |
| June | 39.4°C30 Jun 2012 | 5.0°C1 Jun 1984 | 96 mm22 Jun 1987 | 285 mm1989 · driest 10 mm in 2009 | 119 |
| July | 40.6°C1 Jul 2012 | 10.0°C15 Jul 1967 | 177 mm5 Jul 1994 | 364 mm2005 · driest 13 mm in 1923 | 120 |
| August | 38.9°C1 Aug 1921 | 10.6°C30 Aug 1908 | 105 mm17 Aug 2021 | 298 mm1909 · driest 6 mm in 1980 | 118 |
| September | 42.2°C5 Sep 1925 | 0.0°C30 Sep 1967 | 147 mm18 Sep 1901 | 263 mm2004 · driest 1 mm in 1904 | 117 |
| October | 36.1°C5 Oct 1954 | -3.9°C30 Oct 1910 | 125 mm11 Oct 2018 | 234 mm1966 · driest 0 mm in 1963 | 116 |
| November | 31.7°C6 Nov 1909 | -15.6°C25 Nov 1950 | 104 mm22 Nov 1962 | 362 mm1948 · driest 4 mm in 1939 | 116 |
| December | 30.0°C21 Dec 1924 | -18.9°C13 Dec 1962 | 107 mm10 Dec 1919 | 324 mm1931 · driest 23 mm in 1988 | 117 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 16 | 4 |
| February | <1 | 0 | 12 | 4 |
| March | 6 | <1 | 6 | 4 |
| April | 13 | 1 | 1 | 3 |
| May | 23 | 7 | 0 | 3 |
| June | 28 | 17 | 0 | 4 |
| July | 30 | 25 | 0 | 4 |
| August | 30 | 22 | 0 | 4 |
| September | 25 | 11 | 0 | 3 |
| October | 12 | 1 | <1 | 2 |
| November | 2 | <1 | 7 | 4 |
| December | <1 | 0 | 15 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 9% | 29% | 14% | 31% | 9.5–15.9°C |
| February | 15% | 31% | 16% | 37% | 11.2–17.9°C |
| March | 37% | 29% | 15% | 32% | 16.1–22.3°C |
| April | 63% | 25% | 11% | 27% | 21.3–25.7°C |
| May | 73% | 26% | 11% | 30% | 25.7–29.4°C |
| June | 71% | 29% | 12% | 34% | 28.8–33.2°C |
| July | 68% | 32% | 14% | 39% | 30.6–34.1°C |
| August | 72% | 28% | 12% | 31% | 30.3–33.3°C |
| September | 79% | 20% | 9% | 19% | 27.2–31.8°C |
| October | 72% | 17% | 7% | 15% | 22.0–26.2°C |
| November | 36% | 22% | 11% | 22% | 16.0–20.6°C |
| December | 10% | 28% | 13% | 33% | 10.1–16.2°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