August
August · June · July
United States · 1991–2020
August leads for comfortable weather in Armour Number Two Mine: typically 25.8°C by day, 13.3°C at night, with 72 mm of rain. Based on measured 1991–2020 NOAA station history.
August · June · July
July · August · June
September · May · August
The weakest month is January, scoring 5 against August’s 82 — days reach only -6.1°C, 30° 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 | -6.1°C | -16.9°C | 7 mm | 1.8 | 8 h 57 | 5 | Good coverage |
| February | -3.4°C | -15°C | 9 mm | 2.2 | 10 h 14 | 5 | Good coverage |
| March | 3.9°C | -7.6°C | 24 mm | 3.9 | 11 h 45 | 5 | Good coverage |
| April | 12.3°C | -0.2°C | 42 mm | 5.9 | 13 h 30 | 30 | Good coverage |
| May | 19.4°C | 6.3°C | 87 mm | 8.4 | 14 h 58 | 57 | Good coverage |
| June | 24.6°C | 12.2°C | 103 mm | 8.5 | 15 h 48 | 78 | Good coverage |
| July | 27.4°C | 15°C | 114 mm | 7.8 | 15 h 28 | 74 | Good coverage |
| August | 25.8°C | 13.3°C | 72 mm | 7.3 | 14 h 11 | 82 | Good coverage |
| September | 21.1°C | 9°C | 67 mm | 6.6 | 12 h 29 | 72 | Good coverage |
| October | 12.6°C | 2.2°C | 62 mm | 6.9 | 10 h 49 | 32 | Good coverage |
| November | 4.1°C | -5°C | 21 mm | 3.2 | 9 h 20 | 5 | Good coverage |
| December | -3.8°C | -12.9°C | 13 mm | 2.1 | 8 h 36 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 11.7°C31 Jan 2024 | -41.6°C31 Jan 2019 | 17 mm17 Jan 2020 | 28 mm2020 · driest 0 mm in 2002 | 30 |
| February | 13.9°C27 Feb 2016 | -36.6°C13 Feb 2021 | 19 mm7 Feb 2024 | 39 mm2019 · driest 0 mm in 2003 | 30 |
| March | 26.1°C26 Mar 2007 | -32.7°C12 Mar 2009 | 46 mm23 Mar 2009 | 95 mm2009 · driest 0 mm in 2001 | 30 |
| April | 30.6°C28 Apr 2004 | -17.7°C2 Apr 2018 | 38 mm24 Apr 2016 | 88 mm2024 · driest 9 mm in 2018 | 30 |
| May | 35.0°C28 May 2006 | -5.6°C3 May 2002 | 102 mm27 May 2012 | 225 mm2012 · driest 7 mm in 2021 | 30 |
| June | 37.8°C4 Jun 2021 | 0.0°C5 Jun 2000 | 93 mm11 Jun 1998 | 193 mm1998 · driest 25 mm in 2015 | 30 |
| July | 39.4°C16 Jul 1996 | 5.0°C19 Jul 2000 | 162 mm11 Jul 2016 | 274 mm2016 · driest 17 mm in 2023 | 31 |
| August | 36.1°C8 Aug 2001 | 0.0°C21 Aug 2004 | 53 mm14 Aug 2020 | 195 mm2017 · driest 5 mm in 2001 | 30 |
| September | 38.9°C3 Sep 2023 | -3.9°C24 Sep 2000 | 92 mm5 Sep 2004 | 159 mm2004 · driest 6 mm in 2001 | 30 |
| October | 31.7°C1 Oct 2023 | -11.7°C31 Oct 1996 | 79 mm26 Oct 2010 | 165 mm2009 · driest 4 mm in 2014 | 30 |
| November | 23.9°C2 Nov 2022 | -26.1°C26 Nov 1996 | 50 mm18 Nov 2015 | 94 mm2015 · driest 0 mm in 1999 | 30 |
| December | 12.2°C2 Dec 1998 | -34.4°C26 Dec 1996 | 30 mm24 Dec 2023 | 103 mm2023 · driest 0 mm in 2001 | 30 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 31 | <1 | 5 |
| February | 0 | 0 | 27 | <1 | 7 |
| March | <1 | 0 | 27 | <1 | 1 |
| April | <1 | <1 | 16 | 1 | <1 |
| May | 6 | 1 | 3 | 3 | <1 |
| June | 16 | 3 | 0 | 3 | 0 |
| July | 24 | 8 | 0 | 3 | 0 |
| August | 19 | 4 | 0 | 3 | 0 |
| September | 8 | 2 | 2 | 2 | 0 |
| October | 1 | 0 | 12 | 2 | 1 |
| November | 0 | 0 | 25 | <1 | 5 |
| December | 0 | 0 | 30 | <1 | 8 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 7% | <1% | 3% | -9.5–-2.1°C |
| February | 0% | 9% | <1% | 5% | -7.7–0.5°C |
| March | 1% | 13% | 2% | 10% | 0.7–8.1°C |
| April | 15% | 21% | 5% | 21% | 9.0–15.6°C |
| May | 40% | 26% | 8% | 28% | 17.4–22.3°C |
| June | 64% | 29% | 11% | 31% | 23.3–27.2°C |
| July | 74% | 25% | 9% | 25% | 25.9–29.5°C |
| August | 75% | 24% | 8% | 25% | 24.1–28.0°C |
| September | 52% | 22% | 7% | 22% | 19.5–23.8°C |
| October | 14% | 22% | 6% | 20% | 9.3–16.0°C |
| November | 2% | 11% | 2% | 8% | -0.6–8.4°C |
| December | 0% | 9% | 2% | 5% | -7.6–-0.7°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