September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Eastborough: typically 28.3°C by day, 15.2°C at night, with 78 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
July · August · September
April · October · November
The weakest month is January, scoring 7 against September’s 77 — days reach only 6.7°C, 17° below the 24°C the score treats as ideal, and nights drop to -5.1°C.
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 | 6.7°C | -5.1°C | 15 mm | 2.4 | 9 h 49 | 7 | Good coverage |
| February | 8.7°C | -3.4°C | 30 mm | 3.5 | 10 h 44 | 16 | Good coverage |
| March | 14.9°C | 1.9°C | 57 mm | 4.9 | 11 h 50 | 42 | Good coverage |
| April | 20.2°C | 7.1°C | 77 mm | 6.3 | 13 h 07 | 65 | Good coverage |
| May | 25.1°C | 12.7°C | 140 mm | 8.9 | 14 h 11 | 72 | Good coverage |
| June | 30.4°C | 18.3°C | 124 mm | 8 | 14 h 45 | 56 | Good coverage |
| July | 33.3°C | 20.8°C | 82 mm | 6.2 | 14 h 32 | 50 | Good coverage |
| August | 32.4°C | 19.8°C | 100 mm | 6.8 | 13 h 37 | 51 | Good coverage |
| September | 28.3°C | 15.2°C | 78 mm | 5.5 | 12 h 23 | 77 | Good coverage |
| October | 21.2°C | 8.3°C | 83 mm | 5.9 | 11 h 09 | 69 | Good coverage |
| November | 14.4°C | 1.9°C | 30 mm | 3.4 | 10 h 05 | 44 | Good coverage |
| December | 7.4°C | -3.8°C | 27 mm | 3.1 | 9 h 34 | 11 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 22.8°C28 Jan 2013 | -21.0°C21 Jan 2025 | 37 mm17 Jan 2004 | 58 mm2021 · driest 0 mm in 2009 | 30 |
| February | 26.7°C27 Feb 2026 | -28.2°C16 Feb 2021 | 59 mm3 Feb 2012 | 101 mm2001 · driest 0 mm in 2006 | 30 |
| March | 35.0°C21 Mar 2026 | -19.9°C3 Mar 2014 | 55 mm4 Mar 2004 | 143 mm2000 · driest 2 mm in 2018 | 30 |
| April | 35.6°C13 Apr 2006 | -7.7°C4 Apr 2018 | 119 mm26 Apr 2009 | 192 mm2009 · driest 16 mm in 2018 | 30 |
| May | 37.8°C31 May 2017 | 0.6°C3 May 2013 | 78 mm24 May 2019 | 358 mm2019 · driest 31 mm in 1998 | 30 |
| June | 42.2°C20 Jun 1998 | 6.7°C6 Jun 1998 | 119 mm3 Jun 2025 | 284 mm2025 · driest 19 mm in 1998 | 30 |
| July | 43.3°C10 Jul 2011 | 11.7°C5 Jul 1997 | 108 mm23 Jul 2004 | 232 mm2004 · driest 1 mm in 2012 | 31 |
| August | 43.9°C2 Aug 2011 | 8.3°C31 Aug 2009 | 65 mm25 Aug 2012 | 209 mm2005 · driest 1 mm in 2000 | 29 |
| September | 42.2°C2 Sep 2000 | 2.8°C13 Sep 2014 | 163 mm8 Sep 2009 | 260 mm2016 · driest 9 mm in 2005 | 30 |
| October | 35.6°C1 Oct 2006 | -7.7°C31 Oct 2019 | 132 mm31 Oct 1998 | 235 mm2002 · driest 14 mm in 1999 | 30 |
| November | 30.6°C8 Nov 2006 | -14.9°C18 Nov 2014 | 67 mm26 Nov 2015 | 172 mm2024 · driest 1 mm in 2016 | 29 |
| December | 24.4°C25 Dec 2025 | -22.7°C18 Dec 2016 | 44 mm19 Dec 2011 | 85 mm2011 · driest 0 mm in 2025 | 30 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 26 | <1 |
| February | <1 | 0 | 22 | 1 |
| March | 2 | <1 | 12 | 2 |
| April | 8 | 1 | 3 | 2 |
| May | 18 | 6 | 0 | 4 |
| June | 28 | 17 | 0 | 4 |
| July | 30 | 25 | 0 | 3 |
| August | 30 | 22 | 0 | 3 |
| September | 23 | 12 | 0 | 2 |
| October | 9 | 2 | 2 | 2 |
| November | 1 | 0 | 12 | <1 |
| December | 0 | 0 | 25 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 2% | 7% | 2% | 2% | 3.7–8.7°C |
| February | 9% | 11% | 3% | 6% | 4.8–14.0°C |
| March | 28% | 15% | 6% | 12% | 12.1–18.8°C |
| April | 49% | 21% | 7% | 20% | 17.7–22.8°C |
| May | 64% | 28% | 13% | 34% | 23.0–27.4°C |
| June | 72% | 27% | 14% | 30% | 27.9–32.3°C |
| July | 80% | 20% | 8% | 16% | 31.3–35.6°C |
| August | 79% | 21% | 10% | 21% | 30.1–35.4°C |
| September | 80% | 18% | 7% | 18% | 25.5–31.2°C |
| October | 55% | 19% | 8% | 17% | 18.8–24.0°C |
| November | 21% | 12% | 3% | 6% | 10.9–16.9°C |
| December | 3% | 9% | 2% | 3% | 5.3–10.7°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