September
September · October · May
United States · 1991–2020
September leads for comfortable weather in Cold Spring: typically 28.1°C by day, 15°C at night, with 97 mm of rain. Based on measured 1991–2020 NOAA station history.
September · October · May
August · September · July
October · April · November
The weakest month is January, scoring 5 against September’s 75 — days reach only 9.6°C, 14° below the 24°C the score treats as ideal, and nights drop to -1.3°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 | 9.6°C | -1.3°C | 122 mm | 9.2 | 9 h 59 | 5 | Strong coverage |
| February | 12.2°C | 0.2°C | 130 mm | 9.3 | 10 h 50 | 15 | Strong coverage |
| March | 17°C | 3.7°C | 135 mm | 10.1 | 11 h 51 | 36 | Strong coverage |
| April | 22.3°C | 7.8°C | 135 mm | 9.9 | 13 h 02 | 61 | Strong coverage |
| May | 26.1°C | 12.6°C | 121 mm | 9.9 | 14 h 02 | 70 | Strong coverage |
| June | 29.6°C | 17°C | 125 mm | 10.5 | 14 h 33 | 58 | Strong coverage |
| July | 31.1°C | 19.2°C | 131 mm | 10.4 | 14 h 21 | 49 | Strong coverage |
| August | 30.9°C | 18.4°C | 95 mm | 7.8 | 13 h 30 | 58 | Strong coverage |
| September | 28.1°C | 15°C | 97 mm | 6.4 | 12 h 22 | 75 | Strong coverage |
| October | 22.6°C | 8.4°C | 89 mm | 6.5 | 11 h 13 | 73 | Strong coverage |
| November | 15.9°C | 2.8°C | 112 mm | 7.5 | 10 h 14 | 37 | Strong coverage |
| December | 10.9°C | 0.2°C | 136 mm | 9.2 | 9 h 45 | 10 | Strong coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 23.9°C1 Jan 2022 | -28.9°C20 Jan 1985 | 93 mm7 Jan 1998 | 282 mm1974 · driest 16 mm in 1981 | 62 |
| February | 27.8°C23 Feb 2023 | -23.9°C5 Feb 1996 | 123 mm11 Feb 1994 | 337 mm2019 · driest 19 mm in 1968 | 61 |
| March | 30.6°C21 Mar 2026 | -17.2°C15 Mar 1993 | 141 mm16 Mar 1973 | 295 mm1975 · driest 39 mm in 2003 | 62 |
| April | 33.3°C23 Apr 1965 | -7.8°C3 Apr 1970 | 155 mm28 Apr 1970 | 310 mm1970 · driest 22 mm in 1976 | 64 |
| May | 36.1°C12 May 1962 | -1.1°C4 May 1971 | 120 mm27 May 1973 | 310 mm2003 · driest 16 mm in 1962 | 65 |
| June | 41.1°C29 Jun 2012 | 2.8°C1 Jun 1966 | 109 mm30 Jun 2014 | 277 mm1989 · driest 23 mm in 1979 | 62 |
| July | 41.7°C16 Jul 1980 | 8.3°C7 Jul 1972 | 88 mm29 Jul 2001 | 241 mm1967 · driest 16 mm in 1980 | 64 |
| August | 39.4°C21 Aug 1983 | 8.9°C24 Aug 1997 | 69 mm26 Aug 2008 | 207 mm2020 · driest 8 mm in 1979 | 62 |
| September | 36.7°C2 Sep 2011 | 0.0°C30 Sep 1967 | 128 mm4 Sep 2022 | 272 mm1989 · driest 6 mm in 2023 | 62 |
| October | 35.6°C1 Oct 2019 | -6.1°C22 Oct 1987 | 100 mm5 Oct 1995 | 218 mm2019 · driest 0 mm in 1963 | 63 |
| November | 29.4°C1 Nov 2016 | -12.8°C30 Nov 1976 | 95 mm27 Nov 1983 | 259 mm2011 · driest 21 mm in 1970 | 63 |
| December | 25.6°C2 Dec 1970 | -23.3°C13 Dec 1962 | 120 mm22 Dec 1990 | 416 mm1990 · driest 10 mm in 1965 | 64 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 19 | 4 | 2 |
| February | <1 | 0 | 15 | 4 | 2 |
| March | 3 | 0 | 9 | 5 | <1 |
| April | 10 | <1 | 3 | 5 | 0 |
| May | 21 | 5 | 0 | 4 | 0 |
| June | 28 | 16 | 0 | 4 | 0 |
| July | 31 | 23 | 0 | 4 | 0 |
| August | 30 | 22 | 0 | 3 | 0 |
| September | 25 | 10 | 0 | 3 | 0 |
| October | 11 | <1 | 3 | 3 | 0 |
| November | 1 | 0 | 12 | 3 | <1 |
| December | 0 | 0 | 17 | 5 | <1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 76); on 2011–2025 it is October (78). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 2% | 30% | 13% | 38% | 6.7–12.5°C |
| February | 7% | 32% | 15% | 39% | 9.8–15.5°C |
| March | 29% | 31% | 15% | 37% | 14.5–20.2°C |
| April | 53% | 30% | 14% | 37% | 20.0–24.6°C |
| May | 65% | 32% | 13% | 40% | 24.4–28.4°C |
| June | 69% | 32% | 13% | 39% | 28.3–31.2°C |
| July | 67% | 33% | 13% | 39% | 29.5–32.9°C |
| August | 74% | 26% | 11% | 30% | 29.5–32.6°C |
| September | 76% | 23% | 10% | 22% | 26.2–30.1°C |
| October | 63% | 19% | 9% | 18% | 21.2–24.7°C |
| November | 23% | 25% | 12% | 27% | 13.6–18.7°C |
| December | 4% | 29% | 14% | 33% | 8.4–13.4°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