September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Farnsworth: typically 29.1°C by day, 13.4°C at night, with 47 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
September · August · June
October · April · May
The weakest month is January, scoring 12 against September’s 78 — days reach only 9.2°C, 15° below the 24°C the score treats as ideal, and nights drop to -6.5°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 | 9.2°C | -6.5°C | 18 mm | 2 | 9 h 56 | 12 | Strong coverage |
| February | 11.5°C | -5.1°C | 15 mm | 2.4 | 10 h 48 | 23 | Strong coverage |
| March | 16.7°C | -0.8°C | 38 mm | 4 | 11 h 51 | 46 | Strong coverage |
| April | 21.3°C | 3.9°C | 48 mm | 4.5 | 13 h 04 | 68 | Strong coverage |
| May | 26.3°C | 9.9°C | 72 mm | 5.5 | 14 h 04 | 76 | Strong coverage |
| June | 31.6°C | 15.9°C | 82 mm | 6.2 | 14 h 37 | 64 | Strong coverage |
| July | 34°C | 18.4°C | 88 mm | 6 | 14 h 24 | 51 | Strong coverage |
| August | 32.8°C | 17.7°C | 76 mm | 6.1 | 13 h 32 | 58 | Strong coverage |
| September | 29.1°C | 13.4°C | 47 mm | 3.9 | 12 h 22 | 78 | Strong coverage |
| October | 22.2°C | 6°C | 52 mm | 4.2 | 11 h 12 | 74 | Strong coverage |
| November | 15.3°C | -1°C | 21 mm | 2.7 | 10 h 11 | 43 | Strong coverage |
| December | 9.3°C | -5.3°C | 29 mm | 2.6 | 9 h 42 | 15 | 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 | 27.2°C21 Jan 1986 | -27.2°C7 Jan 1988 | 74 mm16 Jan 2017 | 82 mm2017 · driest 0 mm in 1967 | 55 |
| February | 33.3°C10 Feb 2017 | -26.1°C6 Feb 1982 | 35 mm16 Feb 1998 | 51 mm1971 · driest 0 mm in 1999 | 58 |
| March | 35.6°C19 Mar 2017 | -20.6°C3 Mar 2002 | 68 mm24 Mar 2007 | 180 mm1973 · driest 0 mm in 1966 | 57 |
| April | 38.3°C23 Apr 1989 | -10.6°C4 Apr 1983 | 69 mm29 Apr 1985 | 161 mm1997 · driest 0 mm in 1996 | 56 |
| May | 41.1°C16 May 1996 | -5.0°C4 May 2013 | 181 mm17 May 1989 | 301 mm1989 · driest 0 mm in 2004 | 57 |
| June | 45.0°C26 Jun 2011 | 5.0°C5 Jun 1970 | 126 mm13 Jun 2010 | 216 mm2018 · driest 6 mm in 1981 | 56 |
| July | 44.4°C10 Jul 2009 | 8.3°C13 Jul 1990 | 86 mm8 Jul 1998 | 261 mm1998 · driest 10 mm in 2012 | 54 |
| August | 42.8°C2 Aug 2012 | 7.8°C29 Aug 1988 | 100 mm9 Aug 1967 | 158 mm1967 · driest 1 mm in 1983 | 55 |
| September | 41.1°C5 Sep 2010 | -1.7°C30 Sep 1985 | 83 mm18 Sep 1996 | 223 mm1996 · driest 0 mm in 1992 | 54 |
| October | 38.9°C16 Oct 2016 | -11.7°C31 Oct 1993 | 101 mm16 Oct 1968 | 156 mm2015 · driest 0 mm in 2001 | 57 |
| November | 33.3°C1 Nov 2016 | -20.0°C28 Nov 1976 | 102 mm17 Nov 1971 | 139 mm1971 · driest 0 mm in 1995 | 56 |
| December | 26.1°C14 Dec 2021 | -24.4°C6 Dec 1972 | 69 mm30 Dec 2006 | 117 mm2003 · driest 0 mm in 2021 | 56 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | <1 | 0 | 28 | <1 | 1 |
| February | 1 | <1 | 24 | <1 | 1 |
| March | 4 | <1 | 17 | 1 | 1 |
| April | 10 | 3 | 7 | 2 | <1 |
| May | 19 | 9 | <1 | 2 | 0 |
| June | 27 | 20 | 0 | 3 | 0 |
| July | 30 | 27 | 0 | 3 | 0 |
| August | 29 | 24 | 0 | 2 | 0 |
| September | 23 | 15 | <1 | 1 | 0 |
| October | 11 | 4 | 4 | 2 | <1 |
| November | 3 | <1 | 18 | <1 | <1 |
| December | 0 | 0 | 27 | 1 | 1 |
The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 80); on 2011–2025 it is October (79). 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 | 7% | 6% | 1% | 2% | 4.6–12.4°C |
| February | 14% | 9% | 3% | 3% | 6.6–16.0°C |
| March | 34% | 11% | 4% | 7% | 13.1–19.5°C |
| April | 57% | 14% | 5% | 10% | 18.8–24.1°C |
| May | 71% | 20% | 9% | 19% | 23.1–28.8°C |
| June | 78% | 19% | 9% | 15% | 27.8–34.4°C |
| July | 82% | 17% | 8% | 12% | 32.0–36.6°C |
| August | 81% | 18% | 7% | 13% | 30.7–34.8°C |
| September | 83% | 13% | 5% | 8% | 26.2–31.6°C |
| October | 63% | 11% | 4% | 8% | 19.0–24.7°C |
| November | 29% | 8% | 3% | 3% | 12.1–18.5°C |
| December | 8% | 7% | 2% | 2% | 6.1–12.6°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