September
September · June · August
United States · 1991–2020
September leads for comfortable weather in Morgantown: typically 25.2°C by day, 13°C at night, with 82 mm of rain. Based on measured 1991–2020 NOAA station history.
September · June · August
August · July · June
October · May · September
The weakest month is January, scoring 5 against September’s 81 — days reach only 4.6°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 | 4.6°C | -5.2°C | 91 mm | 11.8 | 9 h 39 | 5 | Strong coverage |
| February | 6.4°C | -4.4°C | 87 mm | 10.7 | 10 h 38 | 5 | Strong coverage |
| March | 11.7°C | -0.7°C | 98 mm | 10.8 | 11 h 49 | 15 | Strong coverage |
| April | 18.6°C | 4.4°C | 104 mm | 11.9 | 13 h 11 | 45 | Strong coverage |
| May | 23°C | 10°C | 113 mm | 12.1 | 14 h 20 | 68 | Strong coverage |
| June | 26.9°C | 14.9°C | 111 mm | 11.2 | 14 h 57 | 72 | Strong coverage |
| July | 29°C | 17.4°C | 122 mm | 9.9 | 14 h 43 | 61 | Strong coverage |
| August | 28.2°C | 16.7°C | 93 mm | 8.7 | 13 h 43 | 70 | Strong coverage |
| September | 25.2°C | 13°C | 82 mm | 8.1 | 12 h 24 | 81 | Strong coverage |
| October | 18.9°C | 6.6°C | 80 mm | 8.6 | 11 h 05 | 57 | Strong coverage |
| November | 12.4°C | 0.8°C | 81 mm | 9.8 | 9 h 56 | 24 | Strong coverage |
| December | 6.8°C | -2.8°C | 98 mm | 10.9 | 9 h 23 | 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°C25 Jan 1950 | -29.4°C17 Jan 1982 | 42 mm11 Jan 1974 | 196 mm1950 · driest 16 mm in 1967 | 81 |
| February | 25.0°C27 Feb 2017 | -23.9°C11 Feb 1979 | 76 mm19 Feb 2000 | 170 mm2018 · driest 6 mm in 1968 | 80 |
| March | 30.0°C27 Mar 1950 | -19.4°C3 Mar 1980 | 51 mm30 Mar 1985 | 193 mm1967 · driest 18 mm in 2014 | 80 |
| April | 32.8°C18 Apr 1976 | -10.0°C12 Apr 1976 | 75 mm16 Apr 2018 | 208 mm2011 · driest 24 mm in 1971 | 80 |
| May | 33.9°C6 May 1949 | -5.0°C5 May 1976 | 74 mm25 May 1998 | 192 mm2025 · driest 33 mm in 1965 | 80 |
| June | 36.1°C11 Jun 1947 | -5.0°C2 Jun 2003 | 77 mm23 Jun 1972 | 234 mm1972 · driest 25 mm in 1991 | 81 |
| July | 37.8°C6 Jul 1949 | 5.6°C7 Jul 1972 | 95 mm19 Jul 1996 | 269 mm1996 · driest 19 mm in 1998 | 82 |
| August | 38.3°C28 Aug 1948 | 2.2°C29 Aug 1982 | 117 mm5 Aug 1948 | 290 mm1980 · driest 25 mm in 1981 | 80 |
| September | 41.1°C2 Sep 1953 | -1.7°C25 Sep 2013 | 65 mm17 Sep 1996 | 213 mm2011 · driest 6 mm in 2013 | 81 |
| October | 34.4°C10 Oct 1949 | -9.4°C20 Oct 1972 | 98 mm16 Oct 1954 | 211 mm1976 · driest 5 mm in 1963 | 81 |
| November | 30.6°C5 Nov 1948 | -16.7°C30 Nov 1958 | 90 mm5 Nov 1985 | 278 mm1985 · driest 8 mm in 2012 | 81 |
| December | 25.6°C3 Dec 1982 | -26.1°C25 Dec 1983 | 54 mm31 Dec 2001 | 200 mm1990 · driest 17 mm in 1955 | 80 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 23 | 3 | 2 |
| February | <1 | 0 | 21 | 3 | 1 |
| March | <1 | 0 | 17 | 3 | <1 |
| April | 5 | <1 | 6 | 3 | 0 |
| May | 12 | 2 | <1 | 4 | 0 |
| June | 22 | 6 | 0 | 4 | 0 |
| July | 27 | 12 | 0 | 4 | 0 |
| August | 26 | 9 | 0 | 3 | 0 |
| September | 16 | 5 | 0 | 2 | 0 |
| October | 5 | <1 | 2 | 3 | 0 |
| November | <1 | 0 | 13 | 2 | <1 |
| December | 0 | 0 | 21 | 3 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 38% | 9% | 53% | 0.8–9.1°C |
| February | 2% | 37% | 9% | 52% | 2.5–10.0°C |
| March | 12% | 37% | 10% | 53% | 8.5–15.7°C |
| April | 30% | 39% | 11% | 51% | 16.1–20.7°C |
| May | 51% | 39% | 13% | 50% | 20.6–26.3°C |
| June | 64% | 35% | 13% | 45% | 25.6–28.9°C |
| July | 67% | 33% | 13% | 42% | 27.6–30.8°C |
| August | 70% | 30% | 12% | 34% | 26.7–30.3°C |
| September | 67% | 28% | 9% | 31% | 23.1–27.9°C |
| October | 41% | 28% | 8% | 30% | 17.0–22.0°C |
| November | 11% | 33% | 8% | 42% | 9.7–15.3°C |
| December | 1% | 37% | 9% | 48% | 3.1–10.4°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