August
August · July · June
United States · 1991–2020
August leads for comfortable weather in Mountain Iron: typically 24°C by day, 11.9°C at night, with 89 mm of rain. Based on measured 1991–2020 NOAA station history.
August · July · June
July · August · June
September · June · August
The weakest month is January, scoring 5 against August’s 81 — days reach only -8.6°C, 33° 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 | -8.6°C | -18.6°C | 20 mm | 5.7 | 8 h 50 | 5 | Strong coverage |
| February | -5.4°C | -16.8°C | 18 mm | 4.7 | 10 h 10 | 5 | Strong coverage |
| March | 1.9°C | -9.7°C | 32 mm | 5.6 | 11 h 44 | 5 | Strong coverage |
| April | 9.6°C | -2.4°C | 49 mm | 7 | 13 h 33 | 16 | Strong coverage |
| May | 17.3°C | 4.8°C | 86 mm | 10.7 | 15 h 05 | 46 | Strong coverage |
| June | 22.4°C | 10.6°C | 108 mm | 11.3 | 15 h 57 | 69 | Strong coverage |
| July | 25.1°C | 13.1°C | 100 mm | 9.4 | 15 h 36 | 78 | Strong coverage |
| August | 24°C | 11.9°C | 89 mm | 9 | 14 h 16 | 81 | Strong coverage |
| September | 18.9°C | 7.4°C | 105 mm | 10.3 | 12 h 30 | 53 | Strong coverage |
| October | 10.7°C | 0.9°C | 67 mm | 8.8 | 10 h 46 | 21 | Strong coverage |
| November | 1.4°C | -6.7°C | 38 mm | 6.6 | 9 h 14 | 5 | Strong coverage |
| December | -5.7°C | -14.3°C | 28 mm | 6.7 | 8 h 27 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 7.8°C7 Jan 2003 | -37.2°C31 Jan 2019 | 18 mm5 Jan 1997 | 54 mm2005 · driest 4 mm in 2007 | 39 |
| February | 12.8°C17 Feb 2011 | -42.2°C3 Feb 1996 | 24 mm21 Feb 2017 | 43 mm2017 · driest 0 mm in 1993 | 38 |
| March | 24.4°C19 Mar 2012 | -35.6°C2 Mar 2014 | 42 mm16 Mar 2016 | 85 mm2009 · driest 8 mm in 1992 | 39 |
| April | 29.4°C18 Apr 1987 | -20.0°C4 Apr 1995 | 54 mm16 Apr 2012 | 138 mm2001 · driest 10 mm in 1988 | 39 |
| May | 31.7°C30 May 2026 | -8.3°C5 May 1989 | 53 mm16 May 1987 | 159 mm2012 · driest 21 mm in 2020 | 40 |
| June | 35.0°C18 Jun 1995 | -1.1°C11 Jun 2023 | 100 mm19 Jun 2024 | 214 mm1994 · driest 31 mm in 2004 | 40 |
| July | 36.7°C27 Jul 1988 | 1.7°C11 Jul 2023 | 140 mm5 Jul 1999 | 303 mm1999 · driest 22 mm in 2015 | 38 |
| August | 33.9°C6 Aug 2001 | 2.2°C20 Aug 2004 | 79 mm18 Aug 2017 | 247 mm2017 · driest 17 mm in 2013 | 39 |
| September | 34.4°C5 Sep 2023 | -2.8°C30 Sep 2003 | 80 mm11 Sep 2003 | 200 mm2023 · driest 9 mm in 2009 | 39 |
| October | 30.0°C12 Oct 2015 | -13.3°C31 Oct 1996 | 57 mm1 Oct 1995 | 132 mm1995 · driest 11 mm in 1992 | 39 |
| November | 22.2°C9 Nov 1999 | -25.0°C27 Nov 2014 | 35 mm17 Nov 1996 | 85 mm2015 · driest 4 mm in 1999 | 40 |
| December | 9.4°C15 Dec 1998 | -33.9°C19 Dec 1989 | 50 mm16 Dec 2021 | 87 mm2021 · driest 2 mm in 1997 | 40 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 31 | <1 | 7 |
| February | 0 | 0 | 28 | <1 | 5 |
| March | 0 | 0 | 29 | <1 | 3 |
| April | <1 | 0 | 22 | 2 | 2 |
| May | 4 | <1 | 5 | 3 | <1 |
| June | 10 | 1 | 0 | 3 | 0 |
| July | 17 | 4 | 0 | 3 | 0 |
| August | 14 | 2 | 0 | 3 | 0 |
| September | 5 | <1 | 2 | 3 | 0 |
| October | <1 | 0 | 14 | 2 | <1 |
| November | 0 | 0 | 26 | 1 | 4 |
| December | 0 | 0 | 30 | <1 | 7 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 19% | <1% | 12% | -12.0–-5.0°C |
| February | 0% | 16% | <1% | 14% | -9.9–-1.3°C |
| March | <1% | 18% | 3% | 15% | -0.8–4.7°C |
| April | 7% | 24% | 6% | 21% | 6.2–13.4°C |
| May | 27% | 32% | 8% | 39% | 15.0–20.1°C |
| June | 50% | 36% | 12% | 49% | 20.5–25.5°C |
| July | 65% | 30% | 10% | 35% | 22.9–27.2°C |
| August | 64% | 29% | 9% | 34% | 22.3–25.7°C |
| September | 35% | 32% | 10% | 39% | 17.5–21.5°C |
| October | 8% | 28% | 7% | 30% | 8.0–13.7°C |
| November | <1% | 23% | 4% | 21% | -2.4–6.0°C |
| December | 0% | 21% | 2% | 20% | -9.4–-2.5°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