September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Apple Mountain Lake: typically 25.5°C by day, 13.3°C at night, with 131 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
July · August · June
October · April · May
The weakest month is January, scoring 5 against September’s 75 — days reach only 6.3°C, 18° 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 | 6.3°C | -4.4°C | 74 mm | 7.2 | 9 h 43 | 5 | Strong coverage |
| February | 8.1°C | -3.2°C | 59 mm | 6.5 | 10 h 40 | 8 | Strong coverage |
| March | 12.5°C | 0.4°C | 82 mm | 8.3 | 11 h 50 | 24 | Strong coverage |
| April | 19.2°C | 5.9°C | 92 mm | 9 | 13 h 10 | 54 | Strong coverage |
| May | 23.5°C | 10.9°C | 119 mm | 11.2 | 14 h 17 | 72 | Strong coverage |
| June | 27.9°C | 15.5°C | 121 mm | 9.9 | 14 h 53 | 68 | Strong coverage |
| July | 30.3°C | 17.8°C | 87 mm | 8.3 | 14 h 39 | 62 | Strong coverage |
| August | 29.3°C | 17°C | 92 mm | 8.5 | 13 h 41 | 66 | Strong coverage |
| September | 25.5°C | 13.3°C | 131 mm | 7.2 | 12 h 24 | 75 | Strong coverage |
| October | 19.6°C | 7.4°C | 88 mm | 6.8 | 11 h 07 | 61 | Strong coverage |
| November | 13.4°C | 1.8°C | 78 mm | 6.2 | 10 h | 32 | Strong coverage |
| December | 8.1°C | -2.1°C | 72 mm | 7.4 | 9 h 27 | 8 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 23.9°C3 Jan 2004 | -20.0°C18 Jan 2003 | 86 mm19 Jan 1996 | 258 mm1996 · driest 1 mm in 2026 | 31 |
| February | 27.2°C22 Feb 2018 | -18.9°C4 Feb 1996 | 76 mm3 Feb 2009 | 177 mm1998 · driest 6 mm in 2002 | 31 |
| March | 31.1°C23 Mar 2026 | -16.1°C4 Mar 2014 | 63 mm13 Mar 2010 | 185 mm2010 · driest 3 mm in 2006 | 31 |
| April | 34.4°C26 Apr 2009 | -8.3°C8 Apr 2000 | 80 mm17 Apr 2011 | 205 mm2011 · driest 31 mm in 1997 | 31 |
| May | 36.7°C20 May 1996 | -2.2°C2 May 2023 | 144 mm14 May 2025 | 279 mm2025 · driest 36 mm in 1999 | 31 |
| June | 38.3°C30 Jun 2012 | 6.1°C3 Jun 2019 | 114 mm27 Jun 2006 | 335 mm2018 · driest 17 mm in 2024 | 31 |
| July | 40.0°C5 Jul 1999 | 9.4°C12 Jul 2002 | 79 mm8 Jul 2005 | 165 mm2016 · driest 8 mm in 1998 | 31 |
| August | 37.8°C17 Aug 1999 | 8.3°C23 Aug 2015 | 141 mm9 Aug 2024 | 205 mm2018 · driest 16 mm in 2023 | 30 |
| September | 37.2°C7 Sep 2023 | 2.8°C21 Sep 2020 | 147 mm6 Sep 1996 | 336 mm2004 · driest 18 mm in 2019 | 30 |
| October | 33.9°C3 Oct 2019 | -3.9°C29 Oct 2005 | 94 mm1 Oct 2010 | 170 mm2005 · driest 5 mm in 2000 | 30 |
| November | 30.0°C3 Nov 2003 | -10.0°C20 Nov 2014 | 90 mm7 Nov 1997 | 219 mm1997 · driest 16 mm in 2001 | 30 |
| December | 27.2°C5 Dec 2001 | -15.0°C9 Dec 2005 | 66 mm15 Dec 2018 | 181 mm2009 · driest 11 mm in 2017 | 31 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 24 | 2 | 3 |
| February | <1 | 0 | 21 | 2 | 2 |
| March | 1 | 0 | 15 | 2 | 1 |
| April | 6 | 2 | 3 | 3 | 0 |
| May | 13 | 4 | <1 | 4 | 0 |
| June | 24 | 11 | 0 | 4 | 0 |
| July | 29 | 18 | 0 | 3 | 0 |
| August | 28 | 14 | 0 | 3 | 0 |
| September | 17 | 6 | 0 | 3 | 0 |
| October | 5 | <1 | 2 | 3 | 0 |
| November | <1 | 0 | 12 | 2 | 0 |
| December | <1 | 0 | 22 | 2 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 3% | 22% | 7% | 21% | 3.5–9.4°C |
| February | 4% | 23% | 8% | 22% | 4.0–10.8°C |
| March | 15% | 26% | 8% | 28% | 9.7–15.9°C |
| April | 34% | 29% | 10% | 36% | 16.9–20.9°C |
| May | 52% | 37% | 14% | 44% | 21.2–25.8°C |
| June | 67% | 32% | 13% | 38% | 26.7–29.1°C |
| July | 73% | 27% | 10% | 33% | 28.4–32.1°C |
| August | 72% | 28% | 9% | 29% | 27.1–30.6°C |
| September | 69% | 25% | 12% | 24% | 23.7–28.1°C |
| October | 43% | 22% | 9% | 22% | 18.0–21.5°C |
| November | 14% | 20% | 8% | 17% | 10.6–16.3°C |
| December | 3% | 24% | 7% | 26% | 5.2–10.9°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