September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Lewisburg: typically 27.8°C by day, 14.2°C at night, with 103 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
August · July · June
October · April · November
The weakest month is January, scoring 5 against September’s 73 — days reach only 7.2°C, 17° 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 | 7.2°C | -3.3°C | 94 mm | 8.1 | 9 h 53 | 5 | Strong coverage |
| February | 9.8°C | -1.8°C | 113 mm | 8.3 | 10 h 46 | 7 | Strong coverage |
| March | 14.8°C | 2.1°C | 115 mm | 9.2 | 11 h 51 | 30 | Strong coverage |
| April | 20.7°C | 7°C | 133 mm | 9.3 | 13 h 05 | 55 | Strong coverage |
| May | 25.7°C | 12.8°C | 134 mm | 9.5 | 14 h 07 | 71 | Strong coverage |
| June | 29.7°C | 17.4°C | 115 mm | 8.5 | 14 h 41 | 61 | Strong coverage |
| July | 31.5°C | 19.5°C | 113 mm | 7.8 | 14 h 28 | 52 | Strong coverage |
| August | 31.1°C | 18.3°C | 95 mm | 6.6 | 13 h 34 | 59 | Strong coverage |
| September | 27.8°C | 14.2°C | 103 mm | 6.5 | 12 h 22 | 73 | Strong coverage |
| October | 21.8°C | 7.6°C | 107 mm | 6.8 | 11 h 11 | 66 | Strong coverage |
| November | 14.7°C | 2.3°C | 97 mm | 7.5 | 10 h 08 | 34 | Strong coverage |
| December | 9°C | -1.3°C | 117 mm | 9.2 | 9 h 38 | 5 | 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 | 26.7°C24 Jan 1943 | -29.4°C23 Jan 1963 | 100 mm9 Jan 1920 | 472 mm1937 · driest 20 mm in 1940 | 105 |
| February | 26.7°C25 Feb 1917 | -30.0°C13 Feb 1899 | 122 mm14 Feb 1949 | 320 mm2019 · driest 0 mm in 1996 | 105 |
| March | 31.7°C24 Mar 1929 | -18.3°C6 Mar 2015 | 108 mm22 Mar 1952 | 405 mm1975 · driest 15 mm in 1918 | 105 |
| April | 35.6°C28 Apr 1899 | -6.7°C1 Apr 1899 | 132 mm4 Apr 1968 | 317 mm2025 · driest 0 mm in 1899 | 106 |
| May | 37.2°C22 May 1941 | -1.7°C4 May 1976 | 137 mm2 May 2010 | 318 mm2024 · driest 14 mm in 1951 | 103 |
| June | 41.7°C30 Jun 2012 | -1.7°C5 Jun 1993 | 224 mm23 Jun 1969 | 330 mm1928 · driest 4 mm in 1936 | 104 |
| July | 42.2°C28 Jul 1930 | 6.7°C3 Jul 1995 | 131 mm31 Jul 1938 | 363 mm2016 · driest 29 mm in 1944 | 107 |
| August | 41.1°C17 Aug 2007 | 3.9°C24 Aug 1995 | 84 mm12 Aug 1929 | 252 mm2005 · driest 7 mm in 1945 | 106 |
| September | 42.2°C7 Sep 1925 | -1.7°C28 Sep 1942 | 202 mm1 Sep 2017 | 357 mm1979 · driest 0 mm in 1897 | 105 |
| October | 36.7°C6 Oct 1941 | -6.7°C29 Oct 1976 | 102 mm13 Oct 1970 | 234 mm1970 · driest 0 mm in 2024 | 104 |
| November | 30.0°C2 Nov 2016 | -20.0°C24 Nov 1950 | 114 mm18 Nov 1957 | 393 mm1957 · driest 21 mm in 1949 | 104 |
| December | 25.0°C17 Dec 1984 | -26.1°C23 Dec 1989 | 126 mm8 Dec 1924 | 281 mm1978 · driest 14 mm in 1989 | 102 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 21 | 3 | <1 |
| February | <1 | 0 | 18 | 4 | <1 |
| March | 2 | 0 | 12 | 4 | <1 |
| April | 8 | <1 | 3 | 4 | 0 |
| May | 19 | 6 | 0 | 4 | 0 |
| June | 26 | 16 | 0 | 4 | 0 |
| July | 29 | 21 | 0 | 4 | 0 |
| August | 29 | 20 | 0 | 3 | 0 |
| September | 22 | 10 | 0 | 3 | 0 |
| October | 10 | 2 | 2 | 4 | 0 |
| November | 1 | 0 | 11 | 3 | 0 |
| December | 0 | 0 | 19 | 4 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 1% | 29% | 13% | 34% | 4.0–11.2°C |
| February | 5% | 29% | 13% | 36% | 5.1–13.5°C |
| March | 19% | 30% | 14% | 36% | 11.1–18.5°C |
| April | 44% | 30% | 13% | 35% | 18.7–23.3°C |
| May | 64% | 29% | 13% | 32% | 23.2–28.1°C |
| June | 73% | 27% | 12% | 29% | 27.8–32.4°C |
| July | 74% | 26% | 12% | 26% | 30.2–33.8°C |
| August | 78% | 22% | 9% | 21% | 29.3–33.7°C |
| September | 77% | 21% | 9% | 20% | 26.0–31.6°C |
| October | 59% | 19% | 9% | 18% | 19.8–25.0°C |
| November | 17% | 24% | 11% | 24% | 11.5–17.0°C |
| December | 2% | 28% | 12% | 33% | 6.0–12.3°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