September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Rushville: typically 26.1°C by day, 13.1°C at night, with 81 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · July · June
October · April · May
The weakest month is January, scoring 5 against September’s 80 — days reach only 3.4°C, 21° 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 | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 3.4°C | -5.7°C | 73 mm | 7.1 | 9 h 38 | 5 | Good coverage |
| February | 5.5°C | -4.5°C | 60 mm | 7.2 | 10 h 38 | 5 | Good coverage |
| March | 11.2°C | -0.1°C | 84 mm | 8.7 | 11 h 49 | 19 | Good coverage |
| April | 18.5°C | 5.2°C | 99 mm | 9.3 | 13 h 12 | 50 | Good coverage |
| May | 23.9°C | 11.1°C | 94 mm | 9.3 | 14 h 21 | 79 | Good coverage |
| June | 28°C | 16.2°C | 113 mm | 9.5 | 14 h 58 | 68 | Good coverage |
| July | 29.6°C | 18°C | 109 mm | 8.4 | 14 h 43 | 61 | Good coverage |
| August | 29.1°C | 17.1°C | 92 mm | 7.3 | 13 h 44 | 68 | Good coverage |
| September | 26.1°C | 13.1°C | 81 mm | 6.5 | 12 h 24 | 80 | Good coverage |
| October | 18.9°C | 6.5°C | 83 mm | 7.3 | 11 h 05 | 58 | Good coverage |
| November | 12.2°C | 0.9°C | 66 mm | 6.5 | 9 h 56 | 28 | Good coverage |
| December | 5.9°C | -2.6°C | 74 mm | 7.8 | 9 h 22 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 22.2°C23 Jan 1999 | -24.4°C28 Jan 2014 | 116 mm5 Jan 2004 | 204 mm2004 · driest 16 mm in 2010 | 28 |
| February | 26.1°C20 Feb 2018 | -23.3°C2 Feb 2026 | 46 mm3 Feb 2022 | 183 mm2019 · driest 15 mm in 2002 | 30 |
| March | 30.0°C21 Mar 2012 | -16.7°C1 Mar 2015 | 48 mm18 Mar 2008 | 180 mm2026 · driest 15 mm in 2009 | 30 |
| April | 31.1°C26 Apr 2009 | -8.9°C6 Apr 2004 | 53 mm3 Apr 2018 | 228 mm2011 · driest 22 mm in 2008 | 30 |
| May | 33.3°C27 May 2012 | -2.2°C14 May 2007 | 62 mm19 May 2004 | 194 mm2004 · driest 0 mm in 2002 | 30 |
| June | 37.2°C28 Jun 2012 | 4.4°C2 Jun 2003 | 61 mm3 Jun 2008 | 202 mm2019 · driest 4 mm in 2005 | 30 |
| July | 37.8°C6 Jul 2012 | 5.0°C6 Jul 2006 | 77 mm6 Jul 2022 | 285 mm2017 · driest 41 mm in 1998 | 30 |
| August | 37.2°C1 Aug 1999 | 4.4°C23 Aug 2016 | 73 mm31 Aug 2005 | 167 mm1997 · driest 3 mm in 2025 | 29 |
| September | 36.1°C15 Sep 1998 | -0.6°C30 Sep 2004 | 76 mm9 Sep 2004 | 152 mm2004 · driest 14 mm in 2023 | 29 |
| October | 32.8°C2 Oct 2019 | -7.8°C13 Oct 2006 | 65 mm8 Oct 1998 | 158 mm2006 · driest 14 mm in 2024 | 29 |
| November | 27.2°C5 Nov 2003 | -11.7°C13 Nov 2019 | 57 mm5 Nov 2017 | 137 mm2011 · driest 6 mm in 2014 | 29 |
| December | 23.3°C6 Dec 2001 | -21.7°C23 Dec 2022 | 50 mm17 Dec 2016 | 129 mm2018 · driest 21 mm in 2006 | 28 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 24 | 2 |
| February | <1 | 0 | 22 | 2 |
| March | <1 | 0 | 18 | 3 |
| April | 5 | <1 | 5 | 4 |
| May | 14 | 4 | <1 | 3 |
| June | 23 | 11 | 0 | 4 |
| July | 29 | 16 | 0 | 4 |
| August | 28 | 13 | 0 | 3 |
| September | 19 | 6 | <1 | 3 |
| October | 6 | <1 | 3 | 3 |
| November | <1 | 0 | 15 | 3 |
| December | 0 | 0 | 23 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 25% | 7% | 26% | 0.0–6.4°C |
| February | 1% | 25% | 7% | 28% | 1.1–9.3°C |
| March | 11% | 28% | 11% | 31% | 8.2–15.4°C |
| April | 30% | 29% | 12% | 34% | 15.4–20.7°C |
| May | 55% | 31% | 12% | 40% | 21.1–26.2°C |
| June | 68% | 31% | 13% | 36% | 26.5–29.2°C |
| July | 72% | 29% | 12% | 29% | 28.0–31.7°C |
| August | 76% | 25% | 10% | 24% | 27.3–30.5°C |
| September | 73% | 21% | 9% | 19% | 24.2–28.3°C |
| October | 38% | 22% | 9% | 19% | 17.6–21.2°C |
| November | 10% | 22% | 8% | 21% | 9.0–14.7°C |
| December | <1% | 26% | 8% | 26% | 3.8–9.6°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