September
September · June · August
80climate match
United States · 1991–2020
Best time to visit
Volin.
September leads for comfortable weather in Volin: typically 25.3°C by day, 10.8°C at night, with 72 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high25.3°C
Typical low10.8°C
Rain in September72 mm
July
July · August · June
73climate match
May
May · September · October
73climate match
The weakest month is January, scoring 5 against September’s 80 — days reach only -1.1°C, 25° 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
5-1.1° / -12.5°
Feb
51.6° / -10.4°
Mar
118.4° / -4.5°
Apr
3715.6° / 1.6°
May
6822.2° / 8.5°
Jun
7128.1° / 14.8°
Jul
6430.6° / 17.4°
Aug
7129.3° / 16°
Sep
8025.3° / 10.8°
Oct
5017.4° / 3.3°
Nov
148.4° / -4.1°
Dec
51.1° / -9.9°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -1.1°C | -12.5°C | 17 mm | 3.4 | 9 h 20 | 5 | Strong coverage |
| February | 1.6°C | -10.4°C | 23 mm | 3.5 | 10 h 27 | 5 | Strong coverage |
| March | 8.4°C | -4.5°C | 41 mm | 4.9 | 11 h 47 | 11 | Strong coverage |
| April | 15.6°C | 1.6°C | 85 mm | 7.6 | 13 h 20 | 37 | Strong coverage |
| May | 22.2°C | 8.5°C | 93 mm | 9.8 | 14 h 37 | 68 | Strong coverage |
| June | 28.1°C | 14.8°C | 104 mm | 9.1 | 15 h 20 | 71 | Strong coverage |
| July | 30.6°C | 17.4°C | 84 mm | 6 | 15 h 03 | 64 | Strong coverage |
| August | 29.3°C | 16°C | 80 mm | 7.1 | 13 h 56 | 71 | Strong coverage |
| September | 25.3°C | 10.8°C | 72 mm | 6.2 | 12 h 26 | 80 | Strong coverage |
| October | 17.4°C | 3.3°C | 66 mm | 5.7 | 10 h 58 | 50 | Strong coverage |
| November | 8.4°C | -4.1°C | 32 mm | 3.6 | 9 h 40 | 14 | Strong coverage |
| December | 1.1°C | -9.9°C | 26 mm | 4 | 9 h 01 | 5 | Strong coverage |
What has changed
Volin runs +0.8°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
+1.7
Feb
+0.4
Mar
+2.1
Apr
-0.6
May
-0.4
Jun
+1.0
Jul
-0.3
Aug
-0.5
Sep
+2.0
Oct
+0.1
Nov
+1.7
Dec
+2.0
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 23.3°C25 Jan 1981 | -33.9°C19 Jan 1970 | 37 mm4 Jan 1949 | 66 mm2023 · driest 0 mm in 1971 | 79 |
| February | 25.6°C23 Feb 1982 | -31.7°C17 Feb 2021 | 46 mm25 Feb 2007 | 60 mm2007 · driest 0 mm in 1970 | 79 |
| March | 33.9°C22 Mar 2026 | -31.7°C1 Mar 1962 | 73 mm14 Mar 2019 | 133 mm1987 · driest 1 mm in 1967 | 79 |
| April | 35.0°C22 Apr 1980 | -16.7°C4 Apr 1975 | 61 mm10 Apr 2013 | 180 mm1984 · driest 10 mm in 1987 | 79 |
| May | 37.8°C28 May 2018 | -4.4°C8 May 1980 | 95 mm23 May 1972 | 297 mm1972 · driest 14 mm in 1955 | 78 |
| June | 43.3°C22 Jun 1988 | 0.6°C3 Jun 1969 | 107 mm17 Jun 1990 | 318 mm2018 · driest 18 mm in 1956 | 77 |
| July | 42.2°C13 Jul 1995 | 5.0°C30 Jul 1971 | 94 mm10 Jul 1971 | 259 mm2010 · driest 0 mm in 2009 | 79 |
| August | 41.7°C27 Aug 1973 | 1.7°C20 Aug 1950 | 94 mm21 Aug 1965 | 200 mm1951 · driest 7 mm in 1971 | 78 |
| September | 38.9°C7 Sep 1970 | -5.0°C30 Sep 1984 | 88 mm23 Sep 2010 | 189 mm1973 · driest 5 mm in 1998 | 77 |
| October | 35.6°C3 Oct 1997 | -10.6°C27 Oct 2020 | 69 mm23 Oct 2008 | 165 mm2008 · driest 0 mm in 1952 | 77 |
| November | 28.3°C9 Nov 1999 | -26.1°C14 Nov 1959 | 60 mm5 Nov 1959 | 155 mm2001 · driest 0 mm in 2007 | 78 |
| December | 21.1°C3 Dec 1998 | -35.0°C23 Dec 1989 | 33 mm2 Dec 2018 | 87 mm2006 · driest 1 mm in 1986 | 77 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 29 | <1 | 3 |
| February | 0 | 0 | 26 | <1 | 4 |
| March | <1 | 0 | 23 | 1 | 3 |
| April | 3 | <1 | 11 | 3 | 1 |
| May | 11 | 4 | <1 | 3 | <1 |
| June | 23 | 12 | 0 | 3 | 0 |
| July | 29 | 19 | 0 | 3 | 0 |
| August | 27 | 14 | 0 | 3 | 0 |
| September | 17 | 7 | <1 | 2 | 0 |
| October | 5 | 1 | 8 | 2 | <1 |
| November | <1 | 0 | 23 | 1 | 2 |
| December | 0 | 0 | 29 | <1 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 9% | <1% | 3% | -6.2–3.2°C |
| February | 1% | 11% | 2% | 5% | -3.8–6.9°C |
| March | 8% | 16% | 4% | 13% | 2.8–12.2°C |
| April | 25% | 24% | 7% | 27% | 12.3–19.1°C |
| May | 50% | 30% | 11% | 37% | 19.8–25.0°C |
| June | 69% | 29% | 10% | 33% | 25.3–29.8°C |
| July | 78% | 22% | 8% | 21% | 28.0–32.8°C |
| August | 77% | 23% | 8% | 19% | 27.4–31.3°C |
| September | 68% | 21% | 7% | 21% | 22.1–27.4°C |
| October | 36% | 16% | 5% | 13% | 15.0–20.3°C |
| November | 7% | 11% | 3% | 7% | 4.6–11.7°C |
| December | <1% | 10% | 2% | 5% | -3.1–4.6°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 5232640
- NOAA station
- USC00399502 · YANKTON 2 E
- Station distance
- 17.3 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 29 usable years
- Daylight
- Calculated from latitude 42.96°, 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.