September
September · August · June
82climate match
United States · 1991–2020
Best time to visit
Morgan.
September leads for comfortable weather in Morgan: typically 23.5°C by day, 10.4°C at night, with 72 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high23.5°C
Typical low10.4°C
Rain in September72 mm
July
July · August · June
74climate match
May
May · September · October
78climate match
The weakest month is January, scoring 5 against September’s 82 — days reach only -4.8°C, 29° 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
5-4.8° / -14.3°
Feb
5-2.4° / -12.2°
Mar
54.7° / -5°
Apr
3413.6° / 1.9°
May
6621° / 8.8°
Jun
7326.5° / 14.7°
Jul
7128.7° / 16.7°
Aug
7627.3° / 15.2°
Sep
8223.5° / 10.4°
Oct
4415.1° / 3.2°
Nov
55.7° / -4.2°
Dec
5-2.1° / -11°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -4.8°C | -14.3°C | 11 mm | 2.6 | 9 h 11 | 5 | Strong coverage |
| February | -2.4°C | -12.2°C | 15 mm | 2.9 | 10 h 22 | 5 | Strong coverage |
| March | 4.7°C | -5°C | 34 mm | 4.9 | 11 h 46 | 5 | Strong coverage |
| April | 13.6°C | 1.9°C | 66 mm | 7.7 | 13 h 24 | 34 | Strong coverage |
| May | 21°C | 8.8°C | 93 mm | 9 | 14 h 46 | 66 | Strong coverage |
| June | 26.5°C | 14.7°C | 118 mm | 9.7 | 15 h 31 | 73 | Strong coverage |
| July | 28.7°C | 16.7°C | 86 mm | 7.1 | 15 h 13 | 71 | Strong coverage |
| August | 27.3°C | 15.2°C | 99 mm | 7 | 14 h 02 | 76 | Strong coverage |
| September | 23.5°C | 10.4°C | 72 mm | 6.2 | 12 h 28 | 82 | Strong coverage |
| October | 15.1°C | 3.2°C | 57 mm | 6.2 | 10 h 54 | 44 | Strong coverage |
| November | 5.7°C | -4.2°C | 28 mm | 3.5 | 9 h 32 | 5 | Strong coverage |
| December | -2.1°C | -11°C | 14 mm | 3.1 | 8 h 51 | 5 | Strong coverage |
What has changed
Morgan runs +0.6°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
+1.9
Feb
+0.1
Mar
+1.2
Apr
-1.2
May
-0.4
Jun
+0.4
Jul
-0.4
Aug
-0.6
Sep
+2.3
Oct
+0.2
Nov
+1.3
Dec
+2.3
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 20.0°C24 Jan 1981 | -37.8°C12 Jan 1912 | 35 mm4 Jan 2023 | 66 mm2023 · driest 0 mm in 2010 | 111 |
| February | 19.4°C17 Feb 2017 | -36.1°C16 Feb 1936 | 39 mm7 Feb 1928 | 84 mm1919 · driest 0 mm in 2011 | 111 |
| March | 30.0°C23 Mar 1910 | -31.7°C11 Mar 1948 | 35 mm22 Mar 2011 | 110 mm1977 · driest 0 mm in 2014 | 111 |
| April | 35.6°C21 Apr 1980 | -16.1°C5 Apr 1926 | 84 mm22 Apr 2001 | 192 mm2001 · driest 8 mm in 1949 | 111 |
| May | 41.7°C31 May 1934 | -6.1°C3 May 1909 | 110 mm29 May 2004 | 251 mm2012 · driest 12 mm in 1975 | 111 |
| June | 42.2°C28 Jun 1931 | -2.2°C4 Jun 1912 | 110 mm16 Jun 1993 | 295 mm1957 · driest 4 mm in 2022 | 112 |
| July | 43.3°C13 Jul 1936 | 4.4°C3 Jul 1917 | 134 mm3 Jul 2018 | 226 mm2018 · driest 4 mm in 2007 | 112 |
| August | 40.6°C3 Aug 1930 | 2.2°C20 Aug 1950 | 199 mm16 Aug 2017 | 354 mm2017 · driest 10 mm in 1927 | 111 |
| September | 40.6°C10 Sep 1931 | -3.9°C30 Sep 1956 | 93 mm12 Sep 2005 | 216 mm2010 · driest 0 mm in 2024 | 110 |
| October | 33.9°C2 Oct 1953 | -16.1°C29 Oct 1925 | 74 mm6 Oct 1911 | 191 mm1911 · driest 0 mm in 1952 | 111 |
| November | 27.8°C8 Nov 1999 | -26.1°C26 Nov 1996 | 66 mm17 Nov 1931 | 136 mm1983 · driest 0 mm in 1984 | 112 |
| December | 21.1°C6 Dec 1939 | -35.0°C29 Dec 1917 | 36 mm26 Dec 1916 | 79 mm1927 · driest 0 mm in 1943 | 113 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 31 | <1 | 7 |
| February | 0 | 0 | 27 | <1 | 5 |
| March | <1 | 0 | 24 | 1 | 5 |
| April | 2 | <1 | 11 | 2 | 2 |
| May | 9 | 3 | <1 | 3 | 0 |
| June | 20 | 8 | 0 | 3 | 0 |
| July | 27 | 12 | 0 | 3 | 0 |
| August | 24 | 8 | 0 | 3 | 0 |
| September | 13 | 4 | <1 | 2 | 0 |
| October | 3 | <1 | 9 | 2 | <1 |
| November | <1 | 0 | 24 | <1 | 5 |
| December | 0 | 0 | 30 | <1 | 7 |
The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 82); on 2011–2025 it is September (89). Both are scored the same way, from the same station — only the climate underneath changed.
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 12% | 1% | 8% | -9.7–-0.2°C |
| February | 0% | 12% | 2% | 7% | -6.8–2.1°C |
| March | 3% | 16% | 3% | 13% | 0.1–9.3°C |
| April | 20% | 23% | 7% | 26% | 10.3–17.7°C |
| May | 47% | 28% | 9% | 33% | 18.9–25.0°C |
| June | 65% | 31% | 11% | 35% | 24.1–29.2°C |
| July | 77% | 23% | 9% | 19% | 27.0–32.8°C |
| August | 76% | 23% | 8% | 22% | 25.8–30.5°C |
| September | 61% | 21% | 7% | 19% | 20.9–26.4°C |
| October | 28% | 17% | 5% | 14% | 12.9–19.1°C |
| November | 3% | 14% | 3% | 10% | 1.3–9.0°C |
| December | 0% | 12% | 2% | 8% | -6.7–1.8°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 5038221
- NOAA station
- USW00014992 · REDWOOD FALLS MUNI AP
- Station distance
- 19.1 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 27 usable years
- Daylight
- Calculated from latitude 44.42°, 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.