September
September · August · June
United States · 1991–2020
September leads for comfortable weather in Burlington: typically 24.9°C by day, 11.5°C at night, with 91 mm of rain. Based on measured 1991–2020 NOAA station history.
September · August · June
August · July · June
October · May · September
The weakest month is January, scoring 5 against September’s 79 — days reach only 0.4°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 | 0.4°C | -8.2°C | 66 mm | 7.8 | 9 h 34 | 5 | Strong coverage |
| February | 2.4°C | -6.9°C | 60 mm | 7.3 | 10 h 36 | 5 | Strong coverage |
| March | 8.6°C | -1.9°C | 66 mm | 8 | 11 h 49 | 10 | Strong coverage |
| April | 15.8°C | 3.5°C | 99 mm | 9.9 | 13 h 13 | 37 | Good coverage |
| May | 22.4°C | 10.5°C | 111 mm | 11 | 14 h 24 | 69 | Strong coverage |
| June | 26.8°C | 15.4°C | 127 mm | 9.8 | 15 h 03 | 71 | Strong coverage |
| July | 28.2°C | 16.8°C | 138 mm | 8.5 | 14 h 48 | 63 | Strong coverage |
| August | 27.5°C | 15.6°C | 105 mm | 7.5 | 13 h 46 | 74 | Strong coverage |
| September | 24.9°C | 11.5°C | 91 mm | 6.7 | 12 h 25 | 79 | Good coverage |
| October | 18°C | 5.5°C | 76 mm | 6.7 | 11 h 03 | 54 | Strong coverage |
| November | 9.8°C | 0.1°C | 76 mm | 7.6 | 9 h 52 | 17 | Strong coverage |
| December | 2.9°C | -4.9°C | 60 mm | 7.9 | 9 h 18 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 18.3°C8 Jan 2008 | -29.4°C5 Jan 1999 | 43 mm21 Jan 1999 | 161 mm2005 · driest 16 mm in 2026 | 30 |
| February | 22.8°C26 Feb 2000 | -30.0°C11 Feb 2014 | 94 mm26 Feb 2002 | 165 mm2002 · driest 13 mm in 2004 | 30 |
| March | 29.4°C22 Mar 2012 | -22.8°C6 Mar 2015 | 57 mm23 Mar 2007 | 149 mm1998 · driest 19 mm in 2001 | 30 |
| April | 30.0°C19 Apr 2004 | -10.6°C8 Apr 1994 | 90 mm19 Apr 2013 | 277 mm2013 · driest 22 mm in 2004 | 29 |
| May | 35.6°C29 May 2018 | -5.6°C18 May 2007 | 60 mm26 May 2011 | 187 mm2017 · driest 38 mm in 2023 | 30 |
| June | 38.3°C29 Jun 2012 | 1.7°C22 Jun 1992 | 75 mm23 Jun 2017 | 343 mm2015 · driest 12 mm in 1992 | 31 |
| July | 37.8°C8 Jul 2012 | 5.6°C1 Jul 2001 | 201 mm5 Jul 2003 | 414 mm2003 · driest 44 mm in 2009 | 30 |
| August | 35.0°C17 Aug 2025 | 4.4°C15 Aug 2014 | 66 mm20 Aug 1996 | 253 mm2018 · driest 20 mm in 2025 | 30 |
| September | 35.0°C6 Sep 2007 | -0.6°C22 Sep 1999 | 52 mm1 Sep 2003 | 230 mm1992 · driest 1 mm in 1994 | 29 |
| October | 32.8°C9 Oct 2007 | -5.0°C19 Oct 1992 | 59 mm6 Oct 2018 | 176 mm2001 · driest 3 mm in 2024 | 31 |
| November | 26.1°C5 Nov 2003 | -16.7°C13 Nov 2019 | 63 mm19 Nov 2017 | 171 mm1992 · driest 11 mm in 2023 | 31 |
| December | 21.1°C6 Dec 1998 | -23.9°C27 Dec 2017 | 59 mm27 Dec 2015 | 148 mm2015 · driest 20 mm in 2017 | 31 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 26 | 2 | 5 |
| February | 0 | 0 | 25 | 2 | 5 |
| March | <1 | 0 | 21 | 2 | 2 |
| April | 3 | <1 | 8 | 3 | <1 |
| May | 11 | 3 | <1 | 4 | 0 |
| June | 21 | 8 | 0 | 4 | 0 |
| July | 26 | 10 | 0 | 4 | 0 |
| August | 24 | 7 | 0 | 3 | 0 |
| September | 16 | 5 | <1 | 3 | 0 |
| October | 5 | <1 | 5 | 3 | 0 |
| November | <1 | 0 | 16 | 3 | <1 |
| December | 0 | 0 | 25 | 2 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 25% | 8% | 28% | -3.0–3.9°C |
| February | <1% | 26% | 6% | 27% | -1.4–6.7°C |
| March | 7% | 27% | 8% | 31% | 5.6–13.0°C |
| April | 18% | 33% | 11% | 43% | 13.8–18.7°C |
| May | 49% | 34% | 11% | 39% | 19.9–25.2°C |
| June | 64% | 32% | 14% | 38% | 25.4–28.5°C |
| July | 70% | 29% | 14% | 29% | 26.7–30.6°C |
| August | 74% | 24% | 9% | 26% | 25.7–28.7°C |
| September | 69% | 22% | 9% | 21% | 22.8–27.2°C |
| October | 32% | 21% | 9% | 21% | 16.3–20.1°C |
| November | 6% | 27% | 9% | 26% | 6.3–12.8°C |
| December | <1% | 26% | 6% | 28% | 0.9–6.0°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