September
September · June · August
85climate match
United States · 1991–2020
Best time to visit
Wessington.
September leads for comfortable weather in Wessington: typically 23.5°C by day, 9.5°C at night, with 48 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high23.5°C
Typical low9.5°C
Rain in September48 mm
July
July · August · June
73climate match
September
September · May · October
83climate match
The weakest month is January, scoring 5 against September’s 85 — days reach only -3.4°C, 27° 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
5-3.4° / -14°
Feb
5-0.9° / -12.4°
Mar
55.6° / -6.5°
Apr
3013.3° / -0.2°
May
5720.2° / 7.1°
Jun
7725.7° / 13.1°
Jul
7129.3° / 15.9°
Aug
7728.1° / 14.5°
Sep
8523.5° / 9.5°
Oct
4214.9° / 1.9°
Nov
56.4° / -5.4°
Dec
5-0.9° / -11.1°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -3.4°C | -14°C | 10 mm | 2.4 | 9 h 11 | 5 | Strong coverage |
| February | -0.9°C | -12.4°C | 19 mm | 3.5 | 10 h 22 | 5 | Good coverage |
| March | 5.6°C | -6.5°C | 24 mm | 4 | 11 h 46 | 5 | Good coverage |
| April | 13.3°C | -0.2°C | 58 mm | 7.4 | 13 h 24 | 30 | Good coverage |
| May | 20.2°C | 7.1°C | 104 mm | 10 | 14 h 46 | 57 | Good coverage |
| June | 25.7°C | 13.1°C | 97 mm | 9.3 | 15 h 31 | 77 | Good coverage |
| July | 29.3°C | 15.9°C | 79 mm | 7.3 | 15 h 13 | 71 | Good coverage |
| August | 28.1°C | 14.5°C | 68 mm | 7 | 14 h 02 | 77 | Strong coverage |
| September | 23.5°C | 9.5°C | 48 mm | 5.5 | 12 h 28 | 85 | Good coverage |
| October | 14.9°C | 1.9°C | 51 mm | 5.3 | 10 h 54 | 42 | Good coverage |
| November | 6.4°C | -5.4°C | 13 mm | 2.6 | 9 h 32 | 5 | Good coverage |
| December | -0.9°C | -11.1°C | 13 mm | 3 | 8 h 51 | 5 | Strong coverage |
What has changed
Wessington runs -0.9°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
+0.5
Feb
-2.2
Mar
-1.0
Apr
-3.0
May
-1.5
Jun
-0.2
Jul
-1.5
Aug
-2.3
Sep
+0.5
Oct
-1.7
Nov
+0.9
Dec
+1.2
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 18.3°C12 Jan 1987 | -44.4°C12 Jan 1912 | 65 mm9 Jan 1939 | 73 mm1939 · driest 0 mm in 2025 | 124 |
| February | 21.1°C25 Feb 1958 | -41.7°C2 Feb 1905 | 34 mm29 Feb 2004 | 62 mm2019 · driest 0 mm in 1985 | 122 |
| March | 32.2°C18 Mar 1921 | -32.8°C4 Mar 1917 | 52 mm12 Mar 1977 | 138 mm1977 · driest 0 mm in 2024 | 124 |
| April | 36.7°C21 Apr 1980 | -17.8°C3 Apr 1975 | 64 mm11 Apr 1991 | 182 mm1968 · driest 4 mm in 1952 | 123 |
| May | 41.7°C30 May 1934 | -9.4°C3 May 1907 | 97 mm11 May 1998 | 200 mm1942 · driest 2 mm in 1934 | 124 |
| June | 44.4°C28 Jun 1931 | -1.1°C21 Jun 1902 | 82 mm21 Jun 2011 | 220 mm1939 · driest 5 mm in 1956 | 124 |
| July | 45.0°C15 Jul 1931 | 1.7°C15 Jul 1912 | 88 mm4 Jul 2020 | 204 mm2020 · driest 0 mm in 1976 | 124 |
| August | 44.4°C13 Aug 1965 | 0.0°C26 Aug 1910 | 130 mm4 Aug 2007 | 217 mm2007 · driest 5 mm in 1976 | 123 |
| September | 43.3°C5 Sep 1913 | -7.8°C20 Sep 1918 | 76 mm20 Sep 1989 | 164 mm1996 · driest 0 mm in 1952 | 124 |
| October | 36.1°C4 Oct 1922 | -23.3°C29 Oct 1925 | 64 mm16 Oct 1998 | 218 mm1998 · driest 0 mm in 1937 | 124 |
| November | 27.8°C8 Nov 1931 | -30.0°C30 Nov 1905 | 33 mm20 Nov 1930 | 65 mm1947 · driest 0 mm in 1961 | 122 |
| December | 21.1°C6 Dec 1918 | -38.9°C29 Dec 1917 | 36 mm14 Dec 1996 | 55 mm1951 · driest 0 mm in 2004 | 124 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | <1 | 3 |
| February | 0 | 0 | 27 | <1 | 4 |
| March | <1 | 0 | 27 | <1 | 2 |
| April | 2 | <1 | 16 | 2 | 2 |
| May | 7 | 2 | 2 | 3 | 0 |
| June | 18 | 6 | 0 | 3 | 0 |
| July | 27 | 14 | 0 | 3 | 0 |
| August | 25 | 11 | 0 | 2 | 0 |
| September | 14 | 5 | 1 | 2 | 0 |
| October | 3 | <1 | 11 | 2 | <1 |
| November | <1 | 0 | 25 | <1 | 2 |
| December | 0 | 0 | 30 | <1 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 8% | <1% | 3% | -9.2–2.3°C |
| February | <1% | 11% | 1% | 5% | -7.0–5.3°C |
| March | 5% | 14% | 2% | 9% | 0.6–10.9°C |
| April | 25% | 21% | 6% | 19% | 11.2–18.5°C |
| May | 49% | 27% | 8% | 30% | 18.5–24.6°C |
| June | 66% | 29% | 10% | 31% | 23.9–29.7°C |
| July | 78% | 21% | 7% | 16% | 27.6–33.5°C |
| August | 79% | 21% | 6% | 16% | 27.0–32.7°C |
| September | 68% | 17% | 5% | 14% | 21.3–27.1°C |
| October | 34% | 14% | 4% | 10% | 13.2–20.0°C |
| November | 4% | 10% | 2% | 4% | 2.4–11.5°C |
| December | <1% | 9% | <1% | 3% | -5.7–3.4°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
Nearby, measured,
and named.
- Place identity
- GeoNames 5232799
- NOAA station
- USC00395561 · MILLER
- Station distance
- 23.6 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 21 usable years
- Daylight
- Calculated from latitude 44.45°, 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.