September
September · June · May
United States · 1991–2020
September leads for comfortable weather in Eastline: typically 25.7°C by day, 12.2°C at night, with 12 mm of rain. Based on measured 1991–2020 NOAA station history.
September · June · May
July · August · June
May · October · April
The weakest month is January, scoring 5 against September’s 89 — days reach only 1.6°C, 22° 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 | 1.6°C | -7.1°C | 8 mm | 2 | 9 h 33 | 5 | Good coverage |
| February | 5.8°C | -3.7°C | 4 mm | 1.6 | 10 h 35 | 6 | Strong coverage |
| March | 12.3°C | 0.6°C | 7 mm | 1.4 | 11 h 49 | 36 | Strong coverage |
| April | 16.3°C | 4.6°C | 10 mm | 2.5 | 13 h 14 | 56 | Good coverage |
| May | 22.1°C | 9.9°C | 11 mm | 2.8 | 14 h 26 | 85 | Strong coverage |
| June | 28.3°C | 15°C | 7 mm | 1.8 | 15 h 04 | 86 | Strong coverage |
| July | 33.4°C | 19.5°C | 5 mm | 1.4 | 14 h 49 | 61 | Strong coverage |
| August | 32.1°C | 18°C | 4 mm | 1 | 13 h 47 | 68 | Strong coverage |
| September | 25.7°C | 12.2°C | 12 mm | 2.3 | 12 h 25 | 89 | Good coverage |
| October | 16.9°C | 5.1°C | 7 mm | 1.7 | 11 h 03 | 59 | Good coverage |
| November | 7.9°C | -2°C | 3 mm | 1.2 | 9 h 51 | 16 | Strong coverage |
| December | 2°C | -6.7°C | 5 mm | 1.5 | 9 h 16 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 17.8°C7 Jan 1969 | -26.7°C18 Jan 1984 | 14 mm10 Jan 2005 | 45 mm2005 · driest 0 mm in 1948 | 107 |
| February | 26.7°C17 Feb 1912 | -24.4°C1 Feb 1937 | 17 mm20 Feb 1914 | 33 mm1962 · driest 0 mm in 1982 | 107 |
| March | 27.2°C31 Mar 2012 | -13.3°C2 Mar 1917 | 20 mm28 Mar 1998 | 34 mm1978 · driest 0 mm in 1997 | 106 |
| April | 33.3°C23 Apr 1919 | -7.8°C1 Apr 1913 | 23 mm1 Apr 1940 | 51 mm1940 · driest 0 mm in 1959 | 107 |
| May | 39.4°C28 May 1919 | -3.3°C9 May 1926 | 50 mm19 May 1987 | 107 mm1987 · driest 0 mm in 1948 | 105 |
| June | 40.6°C7 Jun 1985 | -0.6°C9 Jun 1944 | 23 mm4 Jun 1945 | 77 mm1964 · driest 0 mm in 2026 | 107 |
| July | 44.4°C13 Jul 1939 | 6.1°C3 Jul 1921 | 25 mm21 Jul 1987 | 35 mm1932 · driest 0 mm in 1986 | 105 |
| August | 42.8°C19 Aug 1919 | 1.1°C31 Aug 2005 | 32 mm12 Aug 1941 | 65 mm1941 · driest 0 mm in 2002 | 103 |
| September | 39.4°C20 Sep 1918 | -2.2°C25 Sep 1913 | 39 mm26 Sep 1982 | 86 mm1982 · driest 0 mm in 1953 | 105 |
| October | 32.2°C9 Oct 2003 | -7.8°C30 Oct 1917 | 29 mm13 Oct 1987 | 61 mm1972 · driest 0 mm in 1999 | 104 |
| November | 25.6°C7 Nov 1980 | -15.0°C25 Nov 2010 | 30 mm6 Nov 1970 | 46 mm1957 · driest 0 mm in 1999 | 105 |
| December | 20.6°C17 Dec 2025 | -27.8°C23 Dec 1990 | 23 mm21 Dec 1921 | 69 mm1921 · driest 0 mm in 1962 | 104 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 28 | 0 |
| February | 0 | 0 | 23 | 0 |
| March | <1 | 0 | 14 | <1 |
| April | 2 | <1 | 4 | <1 |
| May | 10 | 3 | <1 | <1 |
| June | 22 | 13 | 0 | <1 |
| July | 29 | 26 | 0 | 0 |
| August | 29 | 23 | 0 | 0 |
| September | 19 | 6 | 0 | <1 |
| October | 2 | <1 | 3 | <1 |
| November | 0 | 0 | 20 | 0 |
| December | 0 | 0 | 27 | 0 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 8% | <1% | 3% | -1.7–5.4°C |
| February | <1% | 8% | <1% | 3% | 2.4–9.8°C |
| March | 6% | 8% | <1% | 3% | 9.3–14.8°C |
| April | 29% | 11% | <1% | 5% | 14.3–20.0°C |
| May | 64% | 12% | 2% | 9% | 19.5–25.7°C |
| June | 87% | 9% | 1% | 5% | 25.4–31.7°C |
| July | 94% | 6% | <1% | 1% | 31.9–35.3°C |
| August | 94% | 6% | <1% | 2% | 30.5–33.6°C |
| September | 83% | 7% | <1% | 3% | 23.7–28.2°C |
| October | 32% | 8% | <1% | 3% | 15.1–20.2°C |
| November | 1% | 6% | <1% | 2% | 6.4–11.2°C |
| December | <1% | 7% | <1% | 2% | -0.2–5.3°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