August
August · July · June
United States · 1991–2020
August leads for comfortable weather in Mapleton: typically 27°C by day, 13.2°C at night, with 68 mm of rain. Based on measured 1991–2020 NOAA station history.
August · July · June
July · August · June
September · May · August
The weakest month is January, scoring 5 against August’s 79 — days reach only -8°C, 32° 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°C | -18.5°C | 14 mm | 3 | 8 h 55 | 5 | Strong coverage |
| February | -5.3°C | -16.5°C | 15 mm | 3.7 | 10 h 13 | 5 | Strong coverage |
| March | 1.8°C | -8.8°C | 29 mm | 3.9 | 11 h 45 | 5 | Strong coverage |
| April | 11.9°C | -0.8°C | 38 mm | 5.2 | 13 h 31 | 29 | Strong coverage |
| May | 20.2°C | 6.2°C | 83 mm | 8.8 | 15 h 01 | 60 | Strong coverage |
| June | 25.4°C | 12.7°C | 113 mm | 9.4 | 15 h 51 | 75 | Strong coverage |
| July | 27.5°C | 14.8°C | 95 mm | 7.5 | 15 h 31 | 76 | Strong coverage |
| August | 27°C | 13.2°C | 68 mm | 6.5 | 14 h 13 | 79 | Strong coverage |
| September | 22.3°C | 7.9°C | 71 mm | 6.1 | 12 h 30 | 74 | Strong coverage |
| October | 13.5°C | 1°C | 61 mm | 6 | 10 h 48 | 34 | Strong coverage |
| November | 3.6°C | -6.8°C | 20 mm | 3.5 | 9 h 18 | 5 | Strong coverage |
| December | -4.4°C | -14°C | 19 mm | 3.5 | 8 h 33 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 13.3°C6 Jan 2012 | -38.3°C15 Jan 1994 | 33 mm18 Jan 1996 | 46 mm1988 · driest 0 mm in 2008 | 42 |
| February | 14.4°C27 Feb 2024 | -39.4°C9 Feb 1994 | 19 mm26 Feb 2000 | 43 mm2019 · driest 1 mm in 2002 | 41 |
| March | 24.4°C30 Mar 1986 | -30.6°C7 Mar 2008 | 36 mm23 Mar 2011 | 65 mm2023 · driest 0 mm in 1986 | 41 |
| April | 33.3°C24 Apr 1990 | -17.2°C7 Apr 2023 | 47 mm23 Apr 2022 | 199 mm1986 · driest 0 mm in 1987 | 42 |
| May | 36.1°C10 May 1987 | -7.2°C3 May 2005 | 55 mm18 May 2015 | 213 mm2015 · driest 25 mm in 2017 | 43 |
| June | 38.3°C5 Jun 2021 | 1.7°C2 Jun 1985 | 112 mm20 Jun 2000 | 250 mm2013 · driest 34 mm in 1988 | 43 |
| July | 41.7°C6 Jul 1988 | 5.0°C1 Jul 2001 | 146 mm16 Jul 1993 | 205 mm1994 · driest 16 mm in 1990 | 42 |
| August | 40.6°C17 Aug 1988 | 2.2°C31 Aug 1987 | 84 mm6 Aug 2025 | 150 mm2025 · driest 6 mm in 1984 | 40 |
| September | 36.7°C20 Sep 1984 | -5.6°C22 Sep 1995 | 71 mm2 Sep 1996 | 143 mm2019 · driest 3 mm in 2024 | 37 |
| October | 33.9°C2 Oct 2023 | -13.3°C31 Oct 1991 | 72 mm30 Oct 2004 | 142 mm1998 · driest 2 mm in 1993 | 42 |
| November | 24.4°C2 Nov 1990 | -36.1°C25 Nov 1985 | 28 mm19 Nov 2024 | 89 mm2000 · driest 0 mm in 1990 | 42 |
| December | 14.4°C8 Dec 2023 | -36.7°C30 Dec 1990 | 33 mm26 Dec 2023 | 67 mm2022 · driest 0 mm in 1995 | 41 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | <1 | 4 |
| February | 0 | 0 | 27 | <1 | 4 |
| March | 0 | 0 | 27 | 1 | 3 |
| April | 1 | <1 | 18 | 1 | 1 |
| May | 7 | 2 | 3 | 3 | 0 |
| June | 17 | 5 | 0 | 4 | 0 |
| July | 24 | 9 | 0 | 3 | 0 |
| August | 23 | 8 | 0 | 2 | 0 |
| September | 11 | 3 | 2 | 2 | 0 |
| October | 2 | <1 | 14 | 2 | <1 |
| November | 0 | 0 | 26 | <1 | 2 |
| December | 0 | 0 | 30 | <1 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 11% | 1% | 2% | -11.1–-3.3°C |
| February | 0% | 12% | <1% | 9% | -9.8–0.2°C |
| March | <1% | 13% | 3% | 9% | -2.6–6.2°C |
| April | 14% | 19% | 5% | 18% | 8.1–16.6°C |
| May | 44% | 29% | 9% | 33% | 18.1–23.4°C |
| June | 65% | 30% | 12% | 33% | 23.3–28.3°C |
| July | 76% | 24% | 8% | 22% | 26.1–29.9°C |
| August | 77% | 21% | 8% | 18% | 24.9–29.2°C |
| September | 58% | 19% | 7% | 15% | 19.9–24.7°C |
| October | 20% | 18% | 6% | 16% | 9.7–16.9°C |
| November | 1% | 12% | 2% | 6% | -0.6–7.3°C |
| December | 0% | 12% | 2% | 6% | -9.4–-0.1°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