September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Rush Hill: typically 26.2°C by day, 13.1°C at night, with 114 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 75 — days reach only 3.3°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 | 3.3°C | -7°C | 62 mm | 6.1 | 9 h 41 | 5 | Good coverage |
| February | 6.3°C | -5°C | 63 mm | 6 | 10 h 40 | 5 | Good coverage |
| March | 12.6°C | 0.3°C | 78 mm | 8.7 | 11 h 50 | 25 | Good coverage |
| April | 19.3°C | 6.3°C | 133 mm | 10.1 | 13 h 10 | 49 | Good coverage |
| May | 24.1°C | 12.4°C | 143 mm | 11.6 | 14 h 18 | 72 | Good coverage |
| June | 29°C | 17.6°C | 127 mm | 8.5 | 14 h 55 | 61 | Good coverage |
| July | 31.2°C | 19.8°C | 112 mm | 8.2 | 14 h 40 | 52 | Good coverage |
| August | 30.8°C | 18.6°C | 92 mm | 5.8 | 13 h 42 | 60 | Good coverage |
| September | 26.2°C | 13.1°C | 114 mm | 6.4 | 12 h 24 | 75 | Good coverage |
| October | 20.1°C | 7°C | 79 mm | 7 | 11 h 06 | 63 | Good coverage |
| November | 12.8°C | 1.2°C | 83 mm | 7.7 | 9 h 58 | 27 | Good coverage |
| December | 5.2°C | -4.5°C | 60 mm | 6.5 | 9 h 25 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 25.0°C24 Jan 1909 | -30.0°C12 Jan 1918 | 71 mm31 Jan 2002 | 165 mm2005 · driest 0 mm in 1986 | 117 |
| February | 26.7°C25 Feb 1930 | -31.7°C13 Feb 1905 | 70 mm2 Feb 2011 | 131 mm2011 · driest 0 mm in 1947 | 118 |
| March | 33.9°C22 Mar 1907 | -24.4°C6 Mar 1960 | 84 mm14 Mar 1922 | 270 mm1973 · driest 12 mm in 1910 | 118 |
| April | 34.4°C11 Apr 1930 | -11.7°C5 Apr 1920 | 99 mm11 Apr 2001 | 296 mm1944 · driest 16 mm in 2000 | 117 |
| May | 37.8°C31 May 1934 | -2.8°C1 May 1907 | 114 mm31 May 1974 | 349 mm1943 · driest 18 mm in 1914 | 118 |
| June | 41.1°C20 Jun 1936 | 3.9°C12 Jun 1903 | 186 mm20 Jun 1928 | 335 mm1928 · driest 11 mm in 1959 | 118 |
| July | 46.7°C15 Jul 1954 | 7.8°C6 Jul 1972 | 126 mm1 Jul 1961 | 437 mm2008 · driest 2 mm in 1930 | 118 |
| August | 46.1°C10 Aug 1934 | 3.9°C31 Aug 1915 | 138 mm16 Aug 1934 | 257 mm2004 · driest 3 mm in 2012 | 117 |
| September | 42.2°C3 Sep 1899 | -3.9°C30 Sep 1895 | 160 mm23 Sep 1993 | 399 mm1993 · driest 5 mm in 1940 | 116 |
| October | 36.7°C8 Oct 1939 | -8.3°C30 Oct 1925 | 108 mm13 Oct 1969 | 392 mm1941 · driest 4 mm in 1895 | 117 |
| November | 31.1°C1 Nov 1950 | -19.4°C30 Nov 1964 | 70 mm1 Nov 1984 | 297 mm1985 · driest 0 mm in 1917 | 118 |
| December | 24.4°C14 Dec 1948 | -31.7°C21 Dec 1989 | 106 mm5 Dec 1982 | 172 mm1982 · driest 7 mm in 1955 | 116 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 25 | 2 | 3 |
| February | 0 | 0 | 22 | 2 | 2 |
| March | 2 | 0 | 15 | 3 | 1 |
| April | 7 | 1 | 3 | 4 | <1 |
| May | 15 | 4 | 0 | 5 | 0 |
| June | 26 | 14 | 0 | 3 | 0 |
| July | 30 | 21 | 0 | 4 | 0 |
| August | 29 | 19 | 0 | 3 | 0 |
| September | 18 | 8 | 0 | 2 | 0 |
| October | 8 | <1 | 3 | 3 | 0 |
| November | <1 | 0 | 12 | 3 | <1 |
| December | 0 | 0 | 24 | 2 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 20% | 5% | 18% | -1.3–6.7°C |
| February | 3% | 23% | 6% | 23% | 0.9–9.3°C |
| March | 13% | 28% | 9% | 32% | 7.8–15.5°C |
| April | 31% | 32% | 11% | 39% | 15.8–21.4°C |
| May | 53% | 35% | 14% | 43% | 21.2–26.5°C |
| June | 68% | 30% | 13% | 34% | 26.6–31.8°C |
| July | 76% | 24% | 10% | 22% | 29.5–34.1°C |
| August | 78% | 22% | 9% | 22% | 28.7–34.1°C |
| September | 71% | 23% | 10% | 23% | 24.4–30.0°C |
| October | 47% | 22% | 9% | 22% | 18.0–23.7°C |
| November | 13% | 22% | 8% | 20% | 9.3–15.0°C |
| December | 1% | 22% | 6% | 21% | 1.5–8.5°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