September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Troutman: typically 27°C by day, 14.9°C at night, with 98 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
June · August · July
October · April · May
The weakest month is January, scoring 9 against September’s 77 — days reach only 10°C, 14° below the 24°C the score treats as ideal, and nights drop to -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 | 10°C | -3°C | 94 mm | 7.9 | 9 h 59 | 9 | Strong coverage |
| February | 12.3°C | -1.7°C | 81 mm | 8.1 | 10 h 50 | 20 | Strong coverage |
| March | 16.5°C | 1.9°C | 101 mm | 8.9 | 11 h 51 | 37 | Strong coverage |
| April | 22°C | 6.7°C | 103 mm | 8 | 13 h 03 | 64 | Strong coverage |
| May | 25.8°C | 11.9°C | 94 mm | 8.5 | 14 h 02 | 75 | Strong coverage |
| June | 29.4°C | 16.8°C | 109 mm | 8.9 | 14 h 34 | 63 | Strong coverage |
| July | 31.1°C | 19.1°C | 115 mm | 9.6 | 14 h 21 | 52 | Strong coverage |
| August | 30.1°C | 18.4°C | 124 mm | 8.5 | 13 h 30 | 56 | Strong coverage |
| September | 27°C | 14.9°C | 98 mm | 7.1 | 12 h 22 | 77 | Strong coverage |
| October | 22°C | 7.6°C | 82 mm | 5.8 | 11 h 13 | 71 | Strong coverage |
| November | 16°C | 1.3°C | 87 mm | 6.8 | 10 h 14 | 38 | Strong coverage |
| December | 11.3°C | -1.7°C | 100 mm | 8.6 | 9 h 45 | 14 | 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°C28 Jan 1944 | -22.2°C31 Jan 1966 | 95 mm25 Jan 1978 | 256 mm1936 · driest 1 mm in 1907 | 118 |
| February | 28.3°C22 Feb 1944 | -21.7°C18 Feb 1958 | 74 mm28 Feb 1910 | 252 mm1903 · driest 13 mm in 1947 | 119 |
| March | 33.9°C30 Mar 1907 | -15.0°C6 Mar 1960 | 118 mm15 Mar 1912 | 274 mm1952 · driest 23 mm in 2016 | 120 |
| April | 35.0°C26 Apr 1915 | -8.3°C9 Apr 1972 | 95 mm21 Apr 1992 | 222 mm2003 · driest 9 mm in 1976 | 120 |
| May | 37.2°C23 May 1941 | -2.2°C2 May 1963 | 93 mm14 May 1950 | 333 mm1950 · driest 8 mm in 2007 | 122 |
| June | 40.6°C27 Jun 1954 | 2.2°C1 Jun 1966 | 195 mm21 Jun 1972 | 270 mm1909 · driest 18 mm in 1935 | 122 |
| July | 40.6°C14 Jul 1954 | 6.7°C1 Jul 1972 | 165 mm27 Jul 1945 | 344 mm1916 · driest 19 mm in 1976 | 122 |
| August | 41.1°C18 Aug 1988 | 6.7°C30 Aug 1965 | 212 mm4 Aug 2016 | 348 mm1913 · driest 15 mm in 1982 | 120 |
| September | 40.0°C9 Sep 1939 | -1.1°C27 Sep 1991 | 126 mm26 Sep 1956 | 295 mm1945 · driest 1 mm in 2019 | 120 |
| October | 35.6°C5 Oct 1954 | -8.9°C27 Oct 1962 | 132 mm1 Oct 1929 | 321 mm1990 · driest 0 mm in 1920 | 120 |
| November | 29.4°C4 Nov 1946 | -14.4°C25 Nov 1970 | 97 mm9 Nov 1962 | 190 mm1948 · driest 8 mm in 1931 | 119 |
| December | 26.7°C20 Dec 1931 | -19.4°C13 Dec 1962 | 115 mm28 Dec 1958 | 238 mm1914 · driest 9 mm in 1965 | 117 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | <1 | 0 | 22 | 3 | 1 |
| February | <1 | 0 | 19 | 3 | <1 |
| March | 3 | 0 | 13 | 3 | <1 |
| April | 10 | 1 | 4 | 4 | 0 |
| May | 21 | 5 | <1 | 3 | 0 |
| June | 27 | 15 | 0 | 4 | 0 |
| July | 30 | 23 | 0 | 4 | 0 |
| August | 29 | 18 | 0 | 4 | 0 |
| September | 22 | 8 | 0 | 3 | 0 |
| October | 9 | <1 | 3 | 2 | 0 |
| November | 1 | 0 | 16 | 3 | 0 |
| December | <1 | 0 | 22 | 4 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 5% | 26% | 11% | 27% | 7.3–13.9°C |
| February | 9% | 28% | 12% | 33% | 9.2–15.6°C |
| March | 26% | 28% | 12% | 32% | 14.1–19.9°C |
| April | 55% | 26% | 11% | 27% | 20.0–24.7°C |
| May | 70% | 27% | 10% | 32% | 24.5–28.4°C |
| June | 71% | 29% | 11% | 34% | 27.8–31.9°C |
| July | 70% | 30% | 12% | 37% | 29.7–32.8°C |
| August | 71% | 29% | 12% | 34% | 29.0–32.1°C |
| September | 77% | 22% | 10% | 21% | 25.7–29.9°C |
| October | 64% | 18% | 8% | 16% | 20.5–24.6°C |
| November | 27% | 20% | 9% | 18% | 14.3–19.0°C |
| December | 6% | 26% | 11% | 29% | 8.8–14.4°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