September
September · October · May
United States · 1991–2020
September leads for comfortable weather in Chilocco: typically 28.1°C by day, 15.3°C at night, with 81 mm of rain. Based on measured 1991–2020 NOAA station history.
September · October · May
September · July · August
October · April · November
The weakest month is January, scoring 9 against September’s 78 — days reach only 7.3°C, 17° below the 24°C the score treats as ideal, and nights drop to -4.9°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 | 7.3°C | -4.9°C | 27 mm | 3.3 | 9 h 53 | 9 | Good coverage |
| February | 10.6°C | -2.7°C | 37 mm | 3.9 | 10 h 46 | 23 | Good coverage |
| March | 15.6°C | 2.1°C | 70 mm | 5.5 | 11 h 51 | 42 | Good coverage |
| April | 21°C | 7.1°C | 105 mm | 6.6 | 13 h 05 | 63 | Good coverage |
| May | 25.5°C | 13.1°C | 145 mm | 8.7 | 14 h 07 | 71 | Good coverage |
| June | 30.5°C | 18.3°C | 138 mm | 7.8 | 14 h 41 | 54 | Good coverage |
| July | 33.5°C | 21.3°C | 111 mm | 6.3 | 14 h 28 | 44 | Good coverage |
| August | 33.3°C | 20.4°C | 106 mm | 6.2 | 13 h 34 | 47 | Good coverage |
| September | 28.1°C | 15.3°C | 81 mm | 5.1 | 12 h 22 | 78 | Good coverage |
| October | 22.2°C | 8.8°C | 92 mm | 5.9 | 11 h 11 | 72 | Good coverage |
| November | 14.6°C | 2.1°C | 48 mm | 3.9 | 10 h 08 | 43 | Good coverage |
| December | 8.1°C | -3.2°C | 43 mm | 3.8 | 9 h 38 | 13 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 26.7°C22 Jan 1967 | -27.8°C18 Jan 1930 | 80 mm31 Jan 1999 | 135 mm1949 · driest 0 mm in 1986 | 112 |
| February | 32.2°C22 Feb 1996 | -30.0°C12 Feb 1899 | 95 mm21 Feb 1997 | 127 mm1915 · driest 0 mm in 1904 | 110 |
| March | 34.4°C20 Mar 1907 | -19.4°C3 Mar 2002 | 87 mm21 Mar 2007 | 253 mm2007 · driest 0 mm in 1936 | 110 |
| April | 37.2°C12 Apr 1972 | -9.4°C3 Apr 1936 | 144 mm8 Apr 1922 | 266 mm1988 · driest 9 mm in 1989 | 113 |
| May | 39.4°C30 May 1913 | -3.3°C1 May 1909 | 127 mm24 May 1909 | 357 mm1902 · driest 6 mm in 1970 | 112 |
| June | 43.3°C25 Jun 1911 | 3.3°C1 Jun 1903 | 205 mm5 Jun 1916 | 396 mm1957 · driest 15 mm in 1900 | 111 |
| July | 47.2°C14 Jul 1954 | 10.0°C31 Jul 1960 | 112 mm6 Jul 1958 | 272 mm1925 · driest 0 mm in 1975 | 112 |
| August | 46.1°C11 Aug 1936 | 8.3°C30 Aug 1915 | 170 mm7 Aug 1898 | 284 mm1927 · driest 0 mm in 2000 | 111 |
| September | 42.8°C10 Sep 1919 | 0.0°C30 Sep 1920 | 187 mm26 Sep 1996 | 267 mm1986 · driest 0 mm in 1939 | 110 |
| October | 37.2°C3 Oct 1898 | -9.4°C31 Oct 1993 | 143 mm2 Oct 1998 | 386 mm1986 · driest 0 mm in 1952 | 110 |
| November | 31.1°C7 Nov 1915 | -14.4°C18 Nov 1903 | 194 mm21 Nov 1979 | 250 mm1979 · driest 0 mm in 1904 | 110 |
| December | 27.2°C24 Dec 1955 | -25.0°C22 Dec 1989 | 97 mm15 Dec 1971 | 143 mm1984 · driest 0 mm in 1915 | 109 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 26 | <1 | 1 |
| February | <1 | <1 | 20 | 1 | <1 |
| March | 3 | <1 | 12 | 2 | <1 |
| April | 9 | 1 | 3 | 3 | 0 |
| May | 19 | 5 | 0 | 4 | 0 |
| June | 27 | 18 | 0 | 5 | 0 |
| July | 30 | 26 | 0 | 3 | 0 |
| August | 30 | 25 | 0 | 3 | 0 |
| September | 23 | 12 | 0 | 2 | 0 |
| October | 11 | 2 | 2 | 2 | 0 |
| November | 1 | 0 | 12 | 2 | <1 |
| December | 0 | 0 | 23 | 2 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 2% | 10% | 3% | 6% | 3.1–10.7°C |
| February | 11% | 13% | 4% | 9% | 5.7–14.5°C |
| March | 31% | 16% | 6% | 12% | 11.3–20.1°C |
| April | 54% | 21% | 10% | 20% | 19.1–24.4°C |
| May | 69% | 27% | 12% | 31% | 23.9–28.3°C |
| June | 74% | 26% | 13% | 28% | 29.0–34.0°C |
| July | 83% | 18% | 9% | 15% | 32.0–37.3°C |
| August | 83% | 18% | 8% | 16% | 31.3–36.9°C |
| September | 80% | 18% | 9% | 15% | 26.9–32.2°C |
| October | 65% | 17% | 7% | 15% | 20.5–25.5°C |
| November | 23% | 12% | 5% | 8% | 11.8–18.3°C |
| December | 3% | 11% | 4% | 6% | 5.5–11.4°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