September
September · May · August
United States · 1991–2020
September leads for comfortable weather in Venango: typically 27.1°C by day, 9.4°C at night, with 38 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · August
July · August · June
October · May · April
The weakest month is January, scoring 5 against September’s 78 — days reach only 6.3°C, 18° below the 24°C the score treats as ideal, and nights drop to -9.2°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 | 6.3°C | -9.2°C | 10 mm | 1.5 | 9 h 33 | 5 | Strong coverage |
| February | 7.9°C | -7.9°C | 10 mm | 2.1 | 10 h 35 | 6 | Strong coverage |
| March | 13.9°C | -3.5°C | 24 mm | 3.4 | 11 h 49 | 33 | Strong coverage |
| April | 18°C | 1.4°C | 46 mm | 5.3 | 13 h 14 | 52 | Strong coverage |
| May | 22.8°C | 7°C | 70 mm | 7 | 14 h 26 | 73 | Strong coverage |
| June | 29.2°C | 13°C | 81 mm | 7.5 | 15 h 05 | 69 | Strong coverage |
| July | 32.3°C | 16.4°C | 63 mm | 6.1 | 14 h 49 | 63 | Strong coverage |
| August | 30.7°C | 14.8°C | 62 mm | 6.2 | 13 h 48 | 71 | Strong coverage |
| September | 27.1°C | 9.4°C | 38 mm | 4 | 12 h 25 | 78 | Strong coverage |
| October | 19.5°C | 1.7°C | 34 mm | 3.8 | 11 h 03 | 60 | Strong coverage |
| November | 11.8°C | -4.5°C | 13 mm | 2.5 | 9 h 51 | 25 | Strong coverage |
| December | 5.7°C | -9.1°C | 8 mm | 1.3 | 9 h 16 | 5 | Good 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 | 23.3°C2 Jan 1997 | -36.7°C17 Jan 1930 | 33 mm20 Jan 1990 | 81 mm2023 · driest 0 mm in 1998 | 105 |
| February | 26.1°C11 Feb 1962 | -34.4°C15 Feb 2021 | 23 mm11 Feb 2012 | 36 mm2012 · driest 0 mm in 2005 | 103 |
| March | 31.1°C29 Mar 1967 | -30.6°C3 Mar 1960 | 51 mm17 Mar 1987 | 110 mm1987 · driest 1 mm in 1921 | 104 |
| April | 34.4°C22 Apr 1989 | -22.2°C2 Apr 1936 | 55 mm22 Apr 2007 | 214 mm1915 · driest 0 mm in 2025 | 106 |
| May | 37.8°C30 May 1994 | -7.2°C2 May 2005 | 87 mm20 May 1951 | 203 mm1915 · driest 5 mm in 1894 | 107 |
| June | 41.7°C29 Jun 1953 | 0.0°C1 Jun 1917 | 78 mm15 Jun 1934 | 268 mm1992 · driest 0 mm in 2013 | 106 |
| July | 42.8°C6 Jul 1973 | 1.7°C12 Jul 1922 | 112 mm17 Jul 1988 | 172 mm1988 · driest 7 mm in 1959 | 106 |
| August | 42.8°C25 Aug 1955 | 3.3°C13 Aug 1920 | 80 mm13 Aug 1932 | 160 mm1923 · driest 0 mm in 2012 | 106 |
| September | 41.1°C6 Sep 2013 | -8.9°C25 Sep 1926 | 64 mm14 Sep 1925 | 124 mm1996 · driest 0 mm in 1983 | 107 |
| October | 35.0°C5 Oct 1947 | -19.4°C30 Oct 1925 | 55 mm18 Oct 1965 | 85 mm2009 · driest 0 mm in 1934 | 105 |
| November | 29.4°C1 Nov 2008 | -25.6°C24 Nov 1950 | 98 mm4 Nov 1922 | 99 mm1922 · driest 0 mm in 1930 | 105 |
| December | 25.0°C3 Dec 2021 | -38.9°C9 Dec 1919 | 19 mm19 Dec 2008 | 39 mm1967 · driest 0 mm in 2001 | 103 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 28 | <1 | 2 |
| February | <1 | 0 | 26 | <1 | 2 |
| March | 2 | 0 | 23 | <1 | 1 |
| April | 5 | <1 | 11 | 2 | 1 |
| May | 11 | 4 | 2 | 2 | <1 |
| June | 21 | 11 | 0 | 3 | 0 |
| July | 26 | 21 | 0 | 2 | 0 |
| August | 25 | 17 | 0 | 2 | 0 |
| September | 19 | 10 | <1 | 1 | 0 |
| October | 7 | 1 | 11 | 1 | <1 |
| November | 1 | 0 | 24 | <1 | 1 |
| December | 0 | 0 | 29 | <1 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 6% | <1% | 1% | 0.5–9.1°C |
| February | 5% | 8% | <1% | 2% | 2.2–11.9°C |
| March | 17% | 11% | 2% | 6% | 8.6–15.8°C |
| April | 40% | 17% | 5% | 15% | 15.0–21.6°C |
| May | 58% | 24% | 8% | 27% | 19.9–25.8°C |
| June | 73% | 24% | 8% | 24% | 26.2–32.0°C |
| July | 80% | 20% | 7% | 16% | 30.2–34.8°C |
| August | 83% | 18% | 6% | 12% | 28.8–33.7°C |
| September | 80% | 13% | 4% | 8% | 24.1–29.7°C |
| October | 55% | 10% | 3% | 5% | 16.8–23.3°C |
| November | 14% | 7% | <1% | 3% | 7.8–15.1°C |
| December | 1% | 6% | <1% | 2% | 1.3–9.7°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