August
August · July · June
United States · 1991–2020
August leads for comfortable weather in Forest City: typically 24.3°C by day, 12.8°C at night, with 111 mm of rain. Based on measured 1991–2020 NOAA station history.
August · July · June
July · August · June
September · June · May
The weakest month is January, scoring 5 against August’s 79 — days reach only -1.7°C, 26° 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 | -1.7°C | -10.9°C | 95 mm | 11.1 | 9 h 28 | 5 | Strong coverage |
| February | -0.2°C | -10.4°C | 77 mm | 8.9 | 10 h 32 | 5 | Strong coverage |
| March | 4.2°C | -6.4°C | 93 mm | 10.2 | 11 h 48 | 5 | Strong coverage |
| April | 11.8°C | -0.2°C | 105 mm | 10.8 | 13 h 16 | 15 | Strong coverage |
| May | 18.4°C | 6.1°C | 125 mm | 12.6 | 14 h 30 | 44 | Strong coverage |
| June | 22.7°C | 11.1°C | 129 mm | 11.6 | 15 h 11 | 68 | Strong coverage |
| July | 25.2°C | 13.6°C | 126 mm | 10.9 | 14 h 55 | 74 | Strong coverage |
| August | 24.3°C | 12.8°C | 111 mm | 9.5 | 13 h 51 | 79 | Strong coverage |
| September | 20.6°C | 8.7°C | 126 mm | 9.4 | 12 h 25 | 59 | Strong coverage |
| October | 13.8°C | 2.7°C | 131 mm | 10.6 | 11 h 01 | 24 | Strong coverage |
| November | 7.1°C | -2.5°C | 97 mm | 9 | 9 h 47 | 5 | Strong coverage |
| December | 1.1°C | -7.2°C | 99 mm | 10.8 | 9 h 10 | 5 | Strong coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 16.7°C26 Jan 1967 | -31.7°C18 Jan 1982 | 87 mm14 Jan 2012 | 230 mm1978 · driest 13 mm in 1967 | 75 |
| February | 21.1°C22 Feb 2018 | -30.0°C3 Feb 1955 | 64 mm11 Feb 2010 | 175 mm1981 · driest 12 mm in 1987 | 74 |
| March | 26.1°C31 Mar 1998 | -25.6°C19 Mar 1967 | 106 mm31 Mar 2007 | 212 mm2007 · driest 15 mm in 1981 | 74 |
| April | 30.0°C18 Apr 2002 | -15.6°C7 Apr 1982 | 95 mm16 Apr 1983 | 220 mm1983 · driest 44 mm in 1971 | 74 |
| May | 31.7°C21 May 1996 | -7.2°C9 May 1985 | 97 mm5 May 2025 | 375 mm2025 · driest 26 mm in 1962 | 75 |
| June | 33.3°C27 Jun 1952 | -1.1°C9 Jun 1983 | 133 mm28 Jun 2006 | 352 mm2006 · driest 29 mm in 1991 | 72 |
| July | 35.0°C16 Jul 1995 | 0.6°C5 Jul 1979 | 81 mm10 Jul 1952 | 232 mm2012 · driest 34 mm in 1968 | 74 |
| August | 33.3°C10 Aug 2001 | 0.6°C29 Aug 1982 | 104 mm19 Aug 2024 | 330 mm1955 · driest 24 mm in 2020 | 73 |
| September | 35.6°C3 Sep 1953 | -6.1°C24 Sep 1963 | 121 mm18 Sep 2004 | 326 mm2011 · driest 19 mm in 2019 | 74 |
| October | 28.3°C1 Oct 1953 | -11.1°C28 Oct 1976 | 131 mm1 Oct 2010 | 266 mm1955 · driest 8 mm in 1963 | 73 |
| November | 23.9°C3 Nov 1982 | -21.7°C23 Nov 2018 | 109 mm23 Nov 2006 | 260 mm1972 · driest 23 mm in 2017 | 74 |
| December | 18.3°C30 Dec 1984 | -31.1°C26 Dec 1980 | 90 mm4 Dec 1990 | 207 mm1990 · driest 29 mm in 1988 | 75 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | 3 | 8 |
| February | 0 | 0 | 27 | 3 | 7 |
| March | 0 | 0 | 27 | 3 | 5 |
| April | 1 | 0 | 17 | 4 | 1 |
| May | 5 | <1 | 3 | 4 | 0 |
| June | 10 | <1 | <1 | 4 | 0 |
| July | 17 | 2 | 0 | 4 | 0 |
| August | 14 | 1 | 0 | 3 | 0 |
| September | 6 | <1 | 1 | 4 | 0 |
| October | <1 | 0 | 11 | 4 | <1 |
| November | 0 | 0 | 21 | 3 | 2 |
| December | 0 | 0 | 27 | 4 | 6 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 33% | 9% | 40% | -4.5–1.0°C |
| February | <1% | 32% | 9% | 40% | -3.2–3.1°C |
| March | 2% | 33% | 10% | 45% | 1.5–7.3°C |
| April | 9% | 36% | 12% | 44% | 9.3–14.0°C |
| May | 29% | 37% | 14% | 49% | 15.8–20.5°C |
| June | 50% | 35% | 13% | 44% | 20.9–24.2°C |
| July | 64% | 32% | 12% | 37% | 23.4–27.0°C |
| August | 64% | 29% | 12% | 33% | 22.8–25.9°C |
| September | 40% | 29% | 11% | 32% | 18.4–22.4°C |
| October | 14% | 29% | 10% | 34% | 11.8–16.9°C |
| November | 2% | 31% | 11% | 37% | 4.6–9.9°C |
| December | 0% | 35% | 11% | 45% | -2.1–4.2°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