July
July · August · June
United States · 1991–2020
July leads for comfortable weather in Hinsdale: typically 24.6°C by day, 8.9°C at night, with 95 mm of rain. Based on measured 1991–2020 NOAA station history.
July · August · June
July · August · June
August · June · July
The weakest month is January, scoring 5 against July’s 73 — days reach only -9.5°C, 33° below the 24°C the score treats as ideal, and nights drop to -22.7°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 | -9.5°C | -22.7°C | 22 mm | 5.8 | 8 h 49 | 5 | Strong coverage |
| February | -6.5°C | -21.8°C | 20 mm | 5.3 | 10 h 10 | 5 | Strong coverage |
| March | 1°C | -13.9°C | 32 mm | 5.7 | 11 h 44 | 5 | Strong coverage |
| April | 8.9°C | -5.9°C | 46 mm | 6.5 | 13 h 33 | 8 | Strong coverage |
| May | 16.2°C | 0.7°C | 82 mm | 10.5 | 15 h 06 | 35 | Good coverage |
| June | 21.6°C | 6.6°C | 114 mm | 10.9 | 15 h 57 | 59 | Strong coverage |
| July | 24.6°C | 8.9°C | 95 mm | 9.7 | 15 h 37 | 73 | Strong coverage |
| August | 23.1°C | 7.8°C | 84 mm | 8 | 14 h 16 | 73 | Strong coverage |
| September | 17.9°C | 4°C | 95 mm | 9.6 | 12 h 30 | 46 | Good coverage |
| October | 9.3°C | -1.8°C | 75 mm | 9.8 | 10 h 46 | 9 | Strong coverage |
| November | 0.6°C | -8.6°C | 37 mm | 7.7 | 9 h 13 | 5 | Strong coverage |
| December | -6.8°C | -17.3°C | 31 mm | 7.5 | 8 h 27 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 6.7°C8 Jan 2003 | -49.4°C20 Jan 1996 | 34 mm18 Jan 1996 | 57 mm1996 · driest 0 mm in 1997 | 31 |
| February | 12.8°C23 Feb 2000 | -48.9°C4 Feb 1996 | 19 mm20 Feb 2016 | 48 mm1996 · driest 4 mm in 2010 | 32 |
| March | 23.3°C18 Mar 2012 | -42.2°C3 Mar 2014 | 42 mm16 Mar 2016 | 74 mm2016 · driest 5 mm in 2011 | 32 |
| April | 25.6°C16 Apr 2002 | -25.6°C20 Apr 2013 | 42 mm29 Apr 2025 | 123 mm2026 · driest 6 mm in 2015 | 32 |
| May | 31.1°C30 May 2026 | -13.3°C3 May 2005 | 51 mm22 May 2024 | 175 mm2001 · driest 18 mm in 2020 | 30 |
| June | 35.6°C17 Jun 1995 | -5.0°C3 Jun 2009 | 110 mm19 Jun 2024 | 219 mm2024 · driest 17 mm in 1995 | 32 |
| July | 35.6°C14 Jul 2026 | -2.8°C24 Jul 2004 | 80 mm5 Jul 1999 | 270 mm1999 · driest 0 mm in 2009 | 32 |
| August | 33.3°C5 Aug 2001 | -5.0°C20 Aug 2004 | 70 mm18 Aug 1995 | 197 mm2017 · driest 25 mm in 2007 | 31 |
| September | 34.4°C4 Sep 2023 | -8.3°C24 Sep 2000 | 158 mm6 Sep 2007 | 293 mm2007 · driest 12 mm in 2024 | 29 |
| October | 28.9°C12 Oct 2015 | -17.2°C27 Oct 1997 | 43 mm8 Oct 1999 | 126 mm2007 · driest 30 mm in 2025 | 31 |
| November | 22.2°C3 Nov 2022 | -31.7°C24 Nov 1997 | 35 mm17 Nov 1996 | 98 mm2005 · driest 6 mm in 1999 | 31 |
| December | 8.9°C15 Dec 2023 | -42.8°C24 Dec 2004 | 54 mm16 Dec 2021 | 88 mm2021 · driest 7 mm in 2011 | 32 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | <1 | 8 |
| February | 0 | 0 | 27 | <1 | 6 |
| March | 0 | 0 | 29 | <1 | 4 |
| April | <1 | 0 | 26 | 1 | 3 |
| May | 3 | <1 | 15 | 3 | <1 |
| June | 8 | 1 | 3 | 4 | 0 |
| July | 15 | 3 | <1 | 3 | 0 |
| August | 10 | 1 | 1 | 3 | 0 |
| September | 3 | <1 | 8 | 3 | 0 |
| October | <1 | 0 | 20 | 3 | 2 |
| November | 0 | 0 | 26 | <1 | 6 |
| December | 0 | 0 | 30 | <1 | 8 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 18% | <1% | 12% | -12.8–-5.6°C |
| February | 0% | 18% | <1% | 17% | -10.1–-2.5°C |
| March | <1% | 18% | 2% | 14% | -1.9–5.0°C |
| April | 5% | 24% | 6% | 26% | 5.4–11.6°C |
| May | 26% | 33% | 8% | 42% | 14.1–19.8°C |
| June | 49% | 35% | 12% | 48% | 19.5–24.6°C |
| July | 64% | 30% | 9% | 35% | 22.7–26.9°C |
| August | 63% | 27% | 9% | 29% | 21.4–25.0°C |
| September | 34% | 33% | 10% | 41% | 16.0–21.6°C |
| October | 7% | 31% | 8% | 33% | 7.0–13.2°C |
| November | <1% | 26% | 3% | 27% | -3.2–4.2°C |
| December | 0% | 24% | 2% | 21% | -10.6–-2.9°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