September
September · May · October
78climate match
United States · 1991–2020
Best time to visit
Christopher.
September leads for comfortable weather in Christopher: typically 27°C by day, 13.9°C at night, with 86 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high27°C
Typical low13.9°C
Rain in September86 mm
August
August · July · June
76climate match
October
October · April · September
78climate match
The weakest month is January, scoring 5 against September’s 78 — days reach only 5.1°C, 19° below the 24°C the score treats as ideal.
Month by month
The whole year,
without the guesswork.
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
Jan
55.1° / -4.2°
Feb
78.1° / -2.1°
Mar
2713.7° / 2.5°
Apr
5420.1° / 8.1°
May
7325° / 13.6°
Jun
5929.7° / 18.2°
Jul
5531.1° / 20°
Aug
6230.5° / 18.5°
Sep
7827° / 13.9°
Oct
6521° / 7.9°
Nov
2713.2° / 2.1°
Dec
57.2° / -2°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 5.1°C | -4.2°C | 78 mm | 7.6 | 9 h 48 | 5 | Strong coverage |
| February | 8.1°C | -2.1°C | 74 mm | 7.1 | 10 h 43 | 7 | Strong coverage |
| March | 13.7°C | 2.5°C | 111 mm | 9.3 | 11 h 50 | 27 | Strong coverage |
| April | 20.1°C | 8.1°C | 136 mm | 9.7 | 13 h 08 | 54 | Strong coverage |
| May | 25°C | 13.6°C | 140 mm | 10.3 | 14 h 12 | 73 | Strong coverage |
| June | 29.7°C | 18.2°C | 122 mm | 8.3 | 14 h 47 | 59 | Strong coverage |
| July | 31.1°C | 20°C | 100 mm | 7.1 | 14 h 33 | 55 | Strong coverage |
| August | 30.5°C | 18.5°C | 84 mm | 6.9 | 13 h 38 | 62 | Strong coverage |
| September | 27°C | 13.9°C | 86 mm | 6.2 | 12 h 23 | 78 | Strong coverage |
| October | 21°C | 7.9°C | 93 mm | 7.2 | 11 h 09 | 65 | Strong coverage |
| November | 13.2°C | 2.1°C | 103 mm | 7.8 | 10 h 04 | 27 | Strong coverage |
| December | 7.2°C | -2°C | 82 mm | 7.6 | 9 h 32 | 5 | Strong coverage |
What has changed
Christopher runs +0.3°C
on the 1961–1990 baseline.
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.
Jan
+1.3
Feb
+0.9
Mar
+0.8
Apr
0.0
May
0.0
Jun
+0.2
Jul
-0.8
Aug
-1.1
Sep
+0.1
Oct
0.0
Nov
0.0
Dec
+2.6
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 24.4°C24 Jan 1943 | -30.0°C13 Jan 1912 | 75 mm19 Jan 1990 | 287 mm1949 · driest 8 mm in 1943 | 128 |
| February | 26.1°C10 Feb 1932 | -29.4°C12 Feb 1899 | 108 mm26 Feb 1945 | 181 mm2018 · driest 3 mm in 1947 | 127 |
| March | 33.3°C23 Mar 1910 | -23.3°C5 Mar 1978 | 132 mm18 Mar 2008 | 354 mm1945 · driest 2 mm in 1910 | 129 |
| April | 33.3°C27 Apr 1989 | -6.7°C5 Apr 1898 | 126 mm28 Apr 1996 | 429 mm2011 · driest 22 mm in 1977 | 129 |
| May | 36.1°C28 May 1911 | -1.7°C1 May 1903 | 126 mm18 May 1995 | 361 mm1995 · driest 11 mm in 1936 | 128 |
| June | 41.1°C28 Jun 2012 | 3.9°C16 Jun 1917 | 133 mm29 Jun 1998 | 386 mm1998 · driest 2 mm in 1933 | 127 |
| July | 45.0°C25 Jul 1934 | 8.3°C26 Jul 1911 | 168 mm21 Jul 1905 | 343 mm1905 · driest 4 mm in 2002 | 125 |
| August | 45.0°C9 Aug 1930 | 6.1°C31 Aug 1915 | 137 mm17 Aug 1959 | 299 mm1915 · driest 1 mm in 1936 | 126 |
| September | 42.2°C6 Sep 1925 | -2.8°C29 Sep 1899 | 116 mm23 Sep 1993 | 266 mm1993 · driest 0 mm in 2022 | 127 |
| October | 35.6°C2 Oct 1953 | -6.7°C30 Oct 1925 | 117 mm4 Oct 1910 | 268 mm1949 · driest 0 mm in 1908 | 127 |
| November | 29.4°C5 Nov 1909 | -20.0°C30 Nov 1929 | 170 mm14 Nov 1993 | 281 mm1993 · driest 2 mm in 1965 | 127 |
| December | 24.4°C17 Dec 1908 | -26.1°C20 Dec 1901 | 94 mm3 Dec 1982 | 336 mm1982 · driest 7 mm in 1955 | 128 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 24 | 3 | 2 |
| February | 0 | 0 | 19 | 3 | 2 |
| March | 2 | 0 | 11 | 4 | <1 |
| April | 7 | <1 | 2 | 4 | <1 |
| May | 17 | 5 | 0 | 4 | 0 |
| June | 27 | 16 | 0 | 3 | 0 |
| July | 30 | 21 | 0 | 3 | 0 |
| August | 30 | 18 | 0 | 3 | 0 |
| September | 21 | 9 | 0 | 3 | 0 |
| October | 9 | 2 | 2 | 3 | <1 |
| November | <1 | 0 | 12 | 3 | <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% | 22% | 8% | 20% | 2.2–9.2°C |
| February | 4% | 23% | 8% | 22% | 3.8–11.7°C |
| March | 17% | 27% | 12% | 29% | 10.0–17.6°C |
| April | 39% | 30% | 12% | 36% | 17.6–22.4°C |
| May | 64% | 29% | 12% | 34% | 22.9–27.6°C |
| June | 74% | 26% | 11% | 26% | 28.0–32.7°C |
| July | 78% | 22% | 10% | 19% | 30.2–34.6°C |
| August | 79% | 21% | 9% | 19% | 29.0–33.7°C |
| September | 77% | 20% | 9% | 18% | 25.4–30.7°C |
| October | 54% | 20% | 8% | 19% | 19.2–24.8°C |
| November | 16% | 23% | 10% | 22% | 10.7–16.6°C |
| December | 2% | 23% | 9% | 23% | 4.2–10.5°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
Nearby, measured,
and named.
- Place identity
- GeoNames 4235804
- NOAA station
- USC00112483 · DU QUOIN 4 SE
- Station distance
- 12.4 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 29 usable years
- Daylight
- Calculated from latitude 37.97°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.