September
September · June · August
United States · 1991–2020
September leads for comfortable weather in Wynantskill: typically 24.3°C by day, 11.8°C at night, with 98 mm of rain. Based on measured 1991–2020 NOAA station history.
September · June · August
July · August · June
May · September · October
The weakest month is January, scoring 5 against September’s 80 — days reach only 0.5°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 | 0.5°C | -9°C | 69 mm | 8 | 9 h 22 | 5 | Strong coverage |
| February | 2°C | -8.5°C | 58 mm | 6.6 | 10 h 28 | 5 | Strong coverage |
| March | 7.1°C | -3.8°C | 72 mm | 7.4 | 11 h 48 | 5 | Strong coverage |
| April | 15.2°C | 2.7°C | 80 mm | 9.3 | 13 h 19 | 37 | Strong coverage |
| May | 21.8°C | 9°C | 92 mm | 10.3 | 14 h 36 | 67 | Strong coverage |
| June | 26.3°C | 14.4°C | 115 mm | 10.1 | 15 h 18 | 74 | Strong coverage |
| July | 28.9°C | 17.1°C | 118 mm | 9.7 | 15 h 01 | 62 | Strong coverage |
| August | 28.1°C | 16.2°C | 108 mm | 8.7 | 13 h 55 | 69 | Strong coverage |
| September | 24.3°C | 11.8°C | 98 mm | 8.1 | 12 h 26 | 80 | Strong coverage |
| October | 17.1°C | 5.6°C | 105 mm | 9.2 | 10 h 58 | 45 | Strong coverage |
| November | 10°C | 0.2°C | 72 mm | 7.6 | 9 h 41 | 18 | Strong coverage |
| December | 3.6°C | -4.7°C | 84 mm | 8.6 | 9 h 03 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 18.9°C6 Jan 2007 | -30.6°C27 Jan 1994 | 102 mm29 Jan 1999 | 212 mm1999 · driest 6 mm in 1981 | 62 |
| February | 23.9°C24 Feb 2017 | -27.2°C18 Feb 1979 | 97 mm5 Feb 1995 | 139 mm2011 · driest 1 mm in 1968 | 62 |
| March | 30.0°C31 Mar 1977 | -23.9°C19 Mar 1967 | 76 mm22 Mar 2001 | 212 mm2001 · driest 12 mm in 1981 | 61 |
| April | 33.3°C28 Apr 2009 | -10.6°C6 Apr 2016 | 68 mm25 Apr 1968 | 184 mm1983 · driest 16 mm in 1999 | 59 |
| May | 36.1°C27 May 2010 | -6.7°C11 May 2010 | 61 mm29 May 1984 | 225 mm1984 · driest 25 mm in 1993 | 61 |
| June | 35.6°C11 Jun 2008 | 3.3°C7 Jun 1958 | 97 mm30 Jun 1973 | 258 mm2006 · driest 9 mm in 1997 | 60 |
| July | 38.3°C15 Jul 1995 | 7.2°C9 Jul 1963 | 73 mm31 Jul 1960 | 220 mm2004 · driest 20 mm in 1956 | 61 |
| August | 37.2°C15 Aug 2002 | 1.7°C23 Aug 2011 | 85 mm28 Aug 1971 | 227 mm2004 · driest 27 mm in 1956 | 62 |
| September | 35.6°C5 Sep 1973 | -1.7°C24 Sep 1963 | 99 mm30 Sep 2015 | 220 mm1960 · driest 21 mm in 1964 | 61 |
| October | 31.7°C8 Oct 1963 | -6.7°C29 Oct 2005 | 112 mm1 Oct 2010 | 265 mm2010 · driest 11 mm in 1963 | 60 |
| November | 28.3°C10 Nov 1975 | -12.2°C28 Nov 1996 | 67 mm11 Nov 1990 | 175 mm1972 · driest 11 mm in 2011 | 62 |
| December | 22.2°C25 Dec 2015 | -26.1°C25 Dec 1980 | 80 mm23 Dec 2011 | 158 mm2011 · driest 9 mm in 1976 | 62 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 27 | 2 | 6 |
| February | 0 | 0 | 25 | 2 | 4 |
| March | <1 | 0 | 23 | 2 | 3 |
| April | 3 | <1 | 8 | 2 | <1 |
| May | 10 | 2 | <1 | 3 | 0 |
| June | 19 | 6 | 0 | 4 | 0 |
| July | 26 | 12 | 0 | 4 | 0 |
| August | 25 | 10 | 0 | 4 | 0 |
| September | 14 | 3 | <1 | 3 | 0 |
| October | 2 | <1 | 3 | 4 | <1 |
| November | 0 | 0 | 16 | 3 | <1 |
| December | 0 | 0 | 24 | 3 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 25% | 7% | 23% | -3.3–3.1°C |
| February | 0% | 24% | 6% | 24% | -1.7–5.1°C |
| March | 3% | 25% | 8% | 27% | 4.0–9.7°C |
| April | 16% | 31% | 8% | 37% | 11.9–16.8°C |
| May | 44% | 34% | 11% | 45% | 19.0–23.7°C |
| June | 62% | 33% | 12% | 42% | 24.3–27.5°C |
| July | 70% | 30% | 12% | 34% | 27.2–30.2°C |
| August | 71% | 29% | 11% | 32% | 26.3–29.4°C |
| September | 59% | 27% | 10% | 32% | 21.4–25.6°C |
| October | 23% | 27% | 10% | 29% | 14.7–19.0°C |
| November | 3% | 29% | 9% | 35% | 7.3–12.3°C |
| December | <1% | 27% | 8% | 27% | -0.2–5.7°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