September
September · June · May
United States · 1991–2020
September leads for comfortable weather in Barneston: typically 25.2°C by day, 12.3°C at night, with 75 mm of rain. Based on measured 1991–2020 NOAA station history.
September · June · May
August · July · June
October · September · May
The weakest month is January, scoring 5 against September’s 82 — days reach only 1.1°C, 23° 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 | 1.1°C | -9.7°C | 21 mm | 3.9 | 9 h 37 | 5 | Good coverage |
| February | 4.6°C | -7.1°C | 27 mm | 3.7 | 10 h 37 | 5 | Good coverage |
| March | 10.4°C | -2.4°C | 61 mm | 6.2 | 11 h 49 | 17 | Good coverage |
| April | 16.7°C | 3.7°C | 83 mm | 8.3 | 13 h 12 | 44 | Good coverage |
| May | 22.3°C | 10.1°C | 139 mm | 9.3 | 14 h 22 | 65 | Good coverage |
| June | 27.3°C | 15.8°C | 108 mm | 8.6 | 15 h | 72 | Good coverage |
| July | 30.1°C | 18.6°C | 115 mm | 8.2 | 14 h 45 | 57 | Good coverage |
| August | 29.6°C | 17.9°C | 85 mm | 7.8 | 13 h 45 | 65 | Good coverage |
| September | 25.2°C | 12.3°C | 75 mm | 6.5 | 12 h 24 | 82 | Good coverage |
| October | 18.8°C | 5.8°C | 73 mm | 5.9 | 11 h 04 | 58 | Good coverage |
| November | 9.4°C | -1.8°C | 39 mm | 4.7 | 9 h 54 | 20 | Good coverage |
| December | 3.4°C | -7°C | 23 mm | 3.6 | 9 h 20 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 20.0°C9 Jan 2003 | -25.6°C28 Jan 1997 | 30 mm26 Jan 2004 | 51 mm1992 · driest 4 mm in 2000 | 20 |
| February | 24.4°C26 Feb 1995 | -29.4°C3 Feb 1996 | 36 mm24 Feb 2001 | 107 mm2001 · driest 0 mm in 1996 | 21 |
| March | 28.3°C27 Mar 1989 | -22.2°C12 Mar 1998 | 53 mm31 Mar 1993 | 128 mm1998 · driest 0 mm in 1994 | 20 |
| April | 35.0°C27 Apr 1989 | -9.4°C8 Apr 2007 | 102 mm25 Apr 2008 | 173 mm2008 · driest 4 mm in 1989 | 20 |
| May | 36.7°C30 May 1989 | -2.8°C2 May 2005 | 123 mm30 May 2004 | 263 mm2001 · driest 25 mm in 2005 | 21 |
| June | 40.0°C22 Jun 1988 | 6.1°C4 Jun 1990 | 64 mm19 Jun 1993 | 228 mm1987 · driest 20 mm in 2002 | 22 |
| July | 40.0°C13 Jul 1995 | 10.0°C27 Jul 2005 | 62 mm25 Jul 1993 | 404 mm1993 · driest 7 mm in 2003 | 22 |
| August | 39.4°C29 Aug 2000 | 9.4°C8 Aug 1989 | 77 mm8 Aug 1987 | 260 mm1987 · driest 29 mm in 1992 | 21 |
| September | 40.6°C3 Sep 2000 | -2.8°C23 Sep 1995 | 70 mm2 Sep 1992 | 156 mm2001 · driest 26 mm in 2005 | 21 |
| October | 34.4°C1 Oct 1994 | -11.1°C28 Oct 1997 | 58 mm5 Oct 1998 | 145 mm2007 · driest 0 mm in 1988 | 21 |
| November | 28.3°C9 Nov 2006 | -16.1°C7 Nov 1991 | 46 mm17 Nov 1996 | 101 mm1998 · driest 3 mm in 2007 | 20 |
| December | 20.6°C1 Dec 1995 | -23.9°C22 Dec 1990 | 29 mm7 Dec 1994 | 69 mm2007 · driest 1 mm in 2002 | 21 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | <1 | 4 |
| February | 0 | 0 | 26 | <1 | 3 |
| March | <1 | 0 | 21 | 2 | 2 |
| April | 4 | <1 | 7 | 3 | <1 |
| May | 11 | 3 | <1 | 4 | 0 |
| June | 22 | 9 | 0 | 3 | 0 |
| July | 28 | 17 | 0 | 4 | 0 |
| August | 27 | 15 | 0 | 3 | 0 |
| September | 17 | 6 | <1 | 3 | 0 |
| October | 6 | 1 | 5 | 2 | <1 |
| November | <1 | 0 | 19 | 1 | 2 |
| December | 0 | 0 | 29 | <1 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 10% | 1% | 4% | -1.3–5.5°C |
| February | 2% | 12% | 2% | 7% | -1.2–8.8°C |
| March | 12% | 18% | 6% | 13% | 7.0–13.4°C |
| April | 30% | 24% | 8% | 26% | 13.6–19.7°C |
| May | 52% | 30% | 12% | 33% | 20.1–25.1°C |
| June | 70% | 28% | 13% | 30% | 25.2–29.9°C |
| July | 74% | 23% | 10% | 22% | 27.9–31.8°C |
| August | 75% | 24% | 11% | 24% | 27.5–32.1°C |
| September | 68% | 23% | 9% | 21% | 22.6–28.4°C |
| October | 40% | 17% | 7% | 15% | 16.9–20.1°C |
| November | 9% | 14% | 4% | 9% | 4.9–13.8°C |
| December | <1% | 11% | 3% | 6% | 0.4–6.7°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