September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Friendsville: typically 27.6°C by day, 13.1°C at night, with 91 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
August · July · June
October · April · September
The weakest month is January, scoring 5 against September’s 74 — days reach only 5.1°C, 19° 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 | 5.1°C | -5.5°C | 87 mm | 7.6 | 9 h 45 | 5 | Good coverage |
| February | 7.9°C | -4.1°C | 77 mm | 7.2 | 10 h 42 | 5 | Good coverage |
| March | 13.4°C | 0.8°C | 97 mm | 8.3 | 11 h 50 | 26 | Good coverage |
| April | 20.1°C | 6.6°C | 133 mm | 10.8 | 13 h 09 | 51 | Good coverage |
| May | 25°C | 12.3°C | 146 mm | 11.2 | 14 h 15 | 69 | Good coverage |
| June | 29.9°C | 17.5°C | 110 mm | 8.6 | 14 h 50 | 61 | Good coverage |
| July | 31.5°C | 19.1°C | 107 mm | 7.4 | 14 h 36 | 54 | Good coverage |
| August | 31.1°C | 17.9°C | 79 mm | 5.9 | 13 h 40 | 63 | Good coverage |
| September | 27.6°C | 13.1°C | 91 mm | 6.5 | 12 h 23 | 74 | Good coverage |
| October | 21.6°C | 6.7°C | 93 mm | 7.3 | 11 h 07 | 65 | Good coverage |
| November | 13.8°C | 1.3°C | 105 mm | 7.5 | 10 h 02 | 28 | Good coverage |
| December | 6.7°C | -4.1°C | 85 mm | 9 | 9 h 29 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 22.2°C25 Jan 1950 | -28.3°C20 Jan 1985 | 108 mm24 Jan 1949 | 342 mm1950 · driest 11 mm in 1981 | 35 |
| February | 25.6°C28 Feb 1996 | -24.4°C2 Feb 1951 | 69 mm13 Feb 1950 | 222 mm1950 · driest 14 mm in 1978 | 36 |
| March | 28.9°C26 Mar 2007 | -17.8°C5 Mar 1978 | 95 mm19 Mar 2008 | 280 mm2008 · driest 37 mm in 1994 | 35 |
| April | 32.2°C27 Apr 1989 | -6.7°C8 Apr 2007 | 100 mm29 Apr 1996 | 309 mm2011 · driest 45 mm in 1949 | 38 |
| May | 35.6°C25 May 2007 | 0.0°C1 May 2005 | 98 mm18 May 1995 | 295 mm1981 · driest 39 mm in 1991 | 37 |
| June | 38.3°C26 Jun 1988 | 6.1°C22 Jun 1992 | 89 mm16 Jun 2000 | 204 mm2000 · driest 5 mm in 1984 | 38 |
| July | 38.9°C22 Jul 1983 | 7.2°C24 Jul 2004 | 117 mm27 Jul 1979 | 362 mm1979 · driest 31 mm in 1994 | 38 |
| August | 43.3°C3 Aug 2002 | 6.1°C29 Aug 1986 | 102 mm25 Aug 2004 | 244 mm1985 · driest 7 mm in 1988 | 38 |
| September | 37.2°C4 Sep 1999 | 0.6°C24 Sep 1995 | 97 mm21 Sep 2009 | 198 mm2009 · driest 0 mm in 2004 | 38 |
| October | 33.9°C8 Oct 2007 | -4.4°C31 Oct 1988 | 87 mm9 Oct 2009 | 225 mm2009 · driest 16 mm in 2000 | 35 |
| November | 29.4°C1 Nov 2000 | -16.7°C25 Nov 1950 | 75 mm15 Nov 1993 | 265 mm1985 · driest 7 mm in 1999 | 35 |
| December | 22.8°C7 Dec 1998 | -27.2°C22 Dec 1989 | 91 mm12 Dec 1949 | 188 mm1990 · driest 22 mm in 1980 | 34 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 24 | 4 | 2 |
| February | <1 | 0 | 20 | 3 | 2 |
| March | 2 | 0 | 15 | 3 | <1 |
| April | 7 | <1 | 3 | 4 | 0 |
| May | 17 | 5 | 0 | 4 | 0 |
| June | 27 | 17 | 0 | 3 | 0 |
| July | 30 | 22 | 0 | 3 | 0 |
| August | 30 | 21 | 0 | 3 | 0 |
| September | 22 | 11 | 0 | 3 | 0 |
| October | 10 | 2 | 3 | 3 | <1 |
| November | <1 | 0 | 13 | 3 | <1 |
| December | 0 | 0 | 23 | 3 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 28% | 10% | 34% | 0.6–9.2°C |
| February | 2% | 28% | 9% | 32% | 2.3–10.4°C |
| March | 12% | 31% | 12% | 40% | 9.4–15.9°C |
| April | 33% | 34% | 13% | 44% | 16.8–22.2°C |
| May | 59% | 32% | 12% | 41% | 22.1–27.6°C |
| June | 72% | 29% | 12% | 32% | 27.7–31.3°C |
| July | 75% | 24% | 9% | 23% | 30.2–33.2°C |
| August | 80% | 22% | 9% | 21% | 28.5–33.3°C |
| September | 76% | 22% | 10% | 23% | 24.8–30.3°C |
| October | 47% | 21% | 9% | 21% | 18.6–23.1°C |
| November | 15% | 27% | 11% | 29% | 10.4–16.4°C |
| December | 1% | 28% | 10% | 34% | 1.8–9.7°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