September
September · May · August
United States · 1991–2020
September leads for comfortable weather in Gladstone: typically 25.1°C by day, 13.2°C at night, with 92 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · August
July · August · June
October · May · September
The weakest month is January, scoring 5 against September’s 83 — days reach only -0.1°C, 24° 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 | -0.1°C | -9.3°C | 34 mm | 5.4 | 9 h 32 | 5 | Strong coverage |
| February | 2.4°C | -7.1°C | 42 mm | 5.3 | 10 h 34 | 5 | Strong coverage |
| March | 9.4°C | -1.2°C | 60 mm | 6.8 | 11 h 49 | 16 | Strong coverage |
| April | 16.7°C | 5.1°C | 96 mm | 8.8 | 13 h 14 | 44 | Strong coverage |
| May | 22.5°C | 11.4°C | 124 mm | 10.5 | 14 h 26 | 69 | Strong coverage |
| June | 27.7°C | 16.9°C | 121 mm | 9.3 | 15 h 05 | 67 | Strong coverage |
| July | 29.6°C | 19°C | 102 mm | 7.6 | 14 h 50 | 61 | Strong coverage |
| August | 28.6°C | 17.9°C | 93 mm | 7.2 | 13 h 48 | 68 | Strong coverage |
| September | 25.1°C | 13.2°C | 92 mm | 5.8 | 12 h 25 | 83 | Strong coverage |
| October | 18.1°C | 6.7°C | 71 mm | 6.3 | 11 h 02 | 57 | Strong coverage |
| November | 9.8°C | 0°C | 62 mm | 6 | 9 h 50 | 20 | Strong coverage |
| December | 2.9°C | -5.8°C | 44 mm | 5.6 | 9 h 15 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 18.3°C3 Jan 2004 | -32.2°C16 Jan 2009 | 35 mm30 Jan 2001 | 108 mm2024 · driest 5 mm in 2022 | 47 |
| February | 25.0°C28 Feb 2024 | -32.2°C4 Feb 1996 | 51 mm21 Feb 1997 | 102 mm2001 · driest 1 mm in 2020 | 48 |
| March | 28.9°C31 Mar 2026 | -22.2°C11 Mar 1948 | 85 mm15 Mar 1944 | 151 mm2009 · driest 10 mm in 1999 | 49 |
| April | 31.7°C19 Apr 2002 | -7.8°C7 Apr 2018 | 71 mm18 Apr 2013 | 208 mm2024 · driest 23 mm in 2018 | 46 |
| May | 36.7°C29 May 2018 | -0.6°C3 May 2005 | 113 mm13 May 2010 | 324 mm2019 · driest 11 mm in 1992 | 47 |
| June | 36.7°C29 Jun 2012 | 5.6°C4 Jun 1946 | 103 mm12 Jun 1946 | 294 mm2011 · driest 17 mm in 1991 | 46 |
| July | 40.6°C1 Jul 1938 | 9.4°C23 Jul 1947 | 89 mm19 Jul 2002 | 273 mm2016 · driest 10 mm in 2012 | 46 |
| August | 38.9°C5 Aug 1938 | 8.3°C17 Aug 2012 | 89 mm16 Aug 1944 | 248 mm2009 · driest 3 mm in 2020 | 45 |
| September | 37.2°C10 Sep 2013 | -1.7°C28 Sep 1942 | 100 mm21 Sep 1947 | 224 mm2019 · driest 2 mm in 1979 | 45 |
| October | 33.9°C4 Oct 2006 | -7.8°C26 Oct 1942 | 79 mm3 Oct 1941 | 320 mm1941 · driest 15 mm in 1942 | 44 |
| November | 26.7°C2 Nov 2000 | -17.2°C8 Nov 1991 | 58 mm18 Nov 2015 | 160 mm1992 · driest 3 mm in 2002 | 45 |
| December | 23.3°C16 Dec 2021 | -26.1°C26 Dec 2000 | 70 mm10 Dec 2003 | 120 mm2015 · driest 3 mm in 1976 | 48 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 28 | <1 | 2 |
| February | 0 | 0 | 25 | 1 | 2 |
| March | <1 | 0 | 19 | 2 | <1 |
| April | 4 | <1 | 4 | 3 | <1 |
| May | 12 | 2 | <1 | 4 | 0 |
| June | 23 | 10 | 0 | 4 | 0 |
| July | 28 | 15 | 0 | 3 | 0 |
| August | 27 | 12 | 0 | 3 | 0 |
| September | 17 | 5 | <1 | 3 | 0 |
| October | 5 | <1 | 2 | 2 | 0 |
| November | <1 | 0 | 15 | 2 | <1 |
| December | 0 | 0 | 26 | 1 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 17% | 3% | 12% | -2.7–3.4°C |
| February | <1% | 18% | 3% | 15% | -0.9–6.5°C |
| March | 8% | 24% | 6% | 26% | 5.9–14.1°C |
| April | 23% | 29% | 11% | 36% | 14.4–19.5°C |
| May | 47% | 31% | 12% | 41% | 19.8–24.3°C |
| June | 66% | 30% | 13% | 35% | 25.9–29.6°C |
| July | 76% | 24% | 11% | 24% | 27.6–31.4°C |
| August | 76% | 22% | 10% | 22% | 26.9–30.5°C |
| September | 72% | 20% | 10% | 20% | 23.1–27.6°C |
| October | 37% | 20% | 8% | 20% | 16.3–21.0°C |
| November | 7% | 20% | 6% | 18% | 5.9–13.2°C |
| December | <1% | 19% | 4% | 15% | -0.4–7.0°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