September
September · June · August
United States · 1991–2020
September leads for comfortable weather in Middleburg: typically 22.9°C by day, 14.1°C at night, with 121 mm of rain. Based on measured 1991–2020 NOAA station history.
September · June · August
July · August · June
May · October · April
The weakest month is January, scoring 5 against September’s 78 — days reach only 3.4°C, 21° 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 | 3.4°C | -5.2°C | 85 mm | 8.3 | 9 h 43 | 5 | Strong coverage |
| February | 4.9°C | -4.3°C | 67 mm | 6.4 | 10 h 40 | 5 | Strong coverage |
| March | 9.5°C | -0.6°C | 93 mm | 8 | 11 h 50 | 11 | Strong coverage |
| April | 16.3°C | 5.3°C | 87 mm | 8.6 | 13 h 10 | 45 | Strong coverage |
| May | 20.5°C | 10.8°C | 128 mm | 10.2 | 14 h 17 | 61 | Strong coverage |
| June | 25.3°C | 16.1°C | 122 mm | 9.8 | 14 h 53 | 76 | Strong coverage |
| July | 27.4°C | 18.4°C | 100 mm | 8.6 | 14 h 39 | 69 | Strong coverage |
| August | 26.6°C | 17.7°C | 85 mm | 7.6 | 13 h 41 | 76 | Strong coverage |
| September | 22.9°C | 14.1°C | 121 mm | 7.8 | 12 h 24 | 78 | Strong coverage |
| October | 16.8°C | 8°C | 93 mm | 7.2 | 11 h 07 | 52 | Strong coverage |
| November | 11°C | 2.4°C | 79 mm | 6.7 | 9 h 59 | 25 | Strong coverage |
| December | 5.5°C | -2.4°C | 84 mm | 7.4 | 9 h 27 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 23.3°C26 Jan 1950 | -26.1°C19 Jan 1994 | 100 mm31 Jan 2013 | 209 mm1998 · driest 7 mm in 1981 | 101 |
| February | 24.4°C25 Feb 1930 | -22.8°C5 Feb 1918 | 89 mm22 Feb 2001 | 193 mm1984 · driest 0 mm in 1956 | 101 |
| March | 28.9°C21 Mar 1921 | -19.4°C1 Mar 1980 | 83 mm29 Mar 1984 | 196 mm2010 · driest 0 mm in 2006 | 102 |
| April | 32.8°C26 Apr 1915 | -14.4°C1 Apr 1923 | 116 mm22 Apr 1992 | 220 mm1918 · driest 11 mm in 1985 | 100 |
| May | 33.9°C20 May 1989 | -5.0°C12 May 1997 | 107 mm12 May 2008 | 420 mm2003 · driest 14 mm in 1964 | 100 |
| June | 36.7°C27 Jun 1954 | 3.3°C11 Jun 1972 | 195 mm22 Jun 1972 | 364 mm1972 · driest 26 mm in 1986 | 101 |
| July | 37.8°C10 Jul 1936 | 3.9°C10 Jul 1997 | 103 mm6 Jul 2017 | 253 mm2017 · driest 0 mm in 1956 | 102 |
| August | 37.2°C6 Aug 1918 | 5.0°C29 Aug 1965 | 141 mm24 Aug 1979 | 291 mm1979 · driest 11 mm in 1930 | 101 |
| September | 36.7°C2 Sep 1953 | -2.8°C30 Sep 1947 | 140 mm29 Sep 2004 | 333 mm1999 · driest 5 mm in 1927 | 100 |
| October | 33.3°C6 Oct 1941 | -7.2°C29 Oct 1925 | 159 mm22 Oct 1929 | 374 mm1942 · driest 0 mm in 1963 | 103 |
| November | 27.2°C1 Nov 1946 | -15.6°C27 Nov 1950 | 120 mm7 Nov 1963 | 230 mm1963 · driest 2 mm in 1933 | 101 |
| December | 23.9°C7 Dec 1956 | -23.3°C30 Dec 1917 | 120 mm2 Dec 1974 | 192 mm1974 · driest 6 mm in 1955 | 102 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 25 | 3 | 2 |
| February | 0 | 0 | 22 | 2 | 2 |
| March | <1 | 0 | 17 | 3 | 2 |
| April | 3 | <1 | 5 | 3 | 0 |
| May | 8 | <1 | <1 | 4 | 0 |
| June | 17 | 3 | 0 | 4 | 0 |
| July | 23 | 7 | 0 | 3 | 0 |
| August | 22 | 5 | 0 | 3 | 0 |
| September | 11 | 2 | 0 | 3 | 0 |
| October | 2 | <1 | <1 | 3 | <1 |
| November | 0 | 0 | 10 | 3 | <1 |
| December | 0 | 0 | 22 | 3 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 26% | 8% | 26% | -1.3–6.8°C |
| February | <1% | 24% | 7% | 23% | 0.7–7.8°C |
| March | 6% | 27% | 10% | 29% | 5.1–12.4°C |
| April | 21% | 29% | 10% | 34% | 12.7–18.2°C |
| May | 44% | 33% | 13% | 40% | 18.4–23.2°C |
| June | 64% | 31% | 12% | 34% | 23.2–27.1°C |
| July | 73% | 27% | 11% | 30% | 25.4–29.4°C |
| August | 73% | 26% | 11% | 27% | 24.5–28.3°C |
| September | 60% | 25% | 10% | 24% | 20.9–25.5°C |
| October | 27% | 21% | 9% | 22% | 14.7–19.7°C |
| November | 4% | 24% | 10% | 22% | 8.4–13.4°C |
| December | <1% | 24% | 7% | 23% | 1.0–8.0°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