September
September · June · August
83climate match
United States · 1991–2020
Best time to visit
Rosebud.
September leads for comfortable weather in Rosebud: typically 24.6°C by day, 7.6°C at night, with 35 mm of rain. Based on measured 1991–2020 NOAA station history.
Best comfortSeptember
Typical high24.6°C
Typical low7.6°C
Rain in September35 mm
July
July · August · June
72climate match
September
September · May · October
79climate match
The weakest month is January, scoring 5 against September’s 83 — days reach only 1.3°C, 23° below the 24°C the score treats as ideal, and nights drop to -12.2°C.
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
51.3° / -12.2°
Feb
53.7° / -10.3°
Mar
1610° / -4.9°
Apr
4215.6° / 0.5°
May
6421° / 6°
Jun
7726.4° / 11.1°
Jul
7231.5° / 14.6°
Aug
7330.8° / 13.2°
Sep
8324.6° / 7.6°
Oct
4616° / 0.9°
Nov
108.2° / -5.8°
Dec
52.2° / -10.8°
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 1.3°C | -12.2°C | 15 mm | 4 | 8 h 59 | 5 | Strong coverage |
| February | 3.7°C | -10.3°C | 15 mm | 3.6 | 10 h 15 | 5 | Strong coverage |
| March | 10°C | -4.9°C | 24 mm | 4.9 | 11 h 45 | 16 | Strong coverage |
| April | 15.6°C | 0.5°C | 47 mm | 6.2 | 13 h 29 | 42 | Strong coverage |
| May | 21°C | 6°C | 72 mm | 8.1 | 14 h 57 | 64 | Strong coverage |
| June | 26.4°C | 11.1°C | 64 mm | 8 | 15 h 46 | 77 | Strong coverage |
| July | 31.5°C | 14.6°C | 36 mm | 5.5 | 15 h 27 | 72 | Strong coverage |
| August | 30.8°C | 13.2°C | 30 mm | 4.3 | 14 h 10 | 73 | Strong coverage |
| September | 24.6°C | 7.6°C | 35 mm | 4.8 | 12 h 29 | 83 | Strong coverage |
| October | 16°C | 0.9°C | 35 mm | 5.5 | 10 h 49 | 46 | Strong coverage |
| November | 8.2°C | -5.8°C | 17 mm | 3.9 | 9 h 21 | 10 | Strong coverage |
| December | 2.2°C | -10.8°C | 14 mm | 3.3 | 8 h 37 | 5 | Strong coverage |
What has changed
Rosebud runs -0.2°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
-2.1
Mar
-0.2
Apr
-2.6
May
-1.6
Jun
-0.6
Jul
+0.2
Aug
0.0
Sep
+1.1
Oct
-1.1
Nov
+1.1
Dec
+1.6
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 21.1°C31 Jan 1992 | -38.9°C30 Jan 1996 | 14 mm20 Jan 2012 | 30 mm2012 · driest 0 mm in 1995 | 51 |
| February | 22.8°C24 Feb 1995 | -38.9°C2 Feb 1996 | 23 mm25 Feb 2000 | 57 mm2018 · driest 2 mm in 1992 | 51 |
| March | 30.0°C31 Mar 2004 | -35.0°C3 Mar 2019 | 38 mm28 Mar 2007 | 63 mm2003 · driest 0 mm in 2010 | 51 |
| April | 32.8°C23 Apr 2012 | -17.2°C21 Apr 2008 | 51 mm7 Apr 2024 | 95 mm2022 · driest 0 mm in 1977 | 51 |
| May | 37.2°C22 May 1980 | -7.2°C13 May 2004 | 73 mm10 May 2016 | 195 mm2007 · driest 15 mm in 2001 | 51 |
| June | 42.2°C15 Jun 2021 | 1.1°C18 Jun 2004 | 47 mm6 Jun 1982 | 138 mm1991 · driest 7 mm in 2012 | 51 |
| July | 44.4°C12 Jul 2026 | 5.0°C12 Jul 1987 | 63 mm3 Jul 1993 | 219 mm1993 · driest 0 mm in 1988 | 50 |
| August | 40.6°C11 Aug 1983 | 0.0°C25 Aug 1992 | 89 mm2 Aug 1998 | 118 mm2014 · driest 1 mm in 2001 | 50 |
| September | 40.6°C7 Sep 2022 | -7.2°C30 Sep 1985 | 71 mm11 Sep 2019 | 173 mm1986 · driest 0 mm in 2012 | 50 |
| October | 33.9°C2 Oct 1997 | -23.9°C30 Oct 1991 | 32 mm4 Oct 2025 | 94 mm2025 · driest 0 mm in 1987 | 51 |
| November | 27.8°C12 Nov 1999 | -32.8°C21 Nov 1977 | 26 mm9 Nov 1978 | 52 mm1978 · driest 0 mm in 2002 | 51 |
| December | 21.1°C1 Dec 2021 | -42.2°C22 Dec 1989 | 27 mm30 Dec 2004 | 43 mm2013 · driest 1 mm in 2001 | 51 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | <1 | 5 |
| February | 0 | 0 | 27 | <1 | 3 |
| March | <1 | 0 | 25 | <1 | 3 |
| April | 2 | <1 | 14 | 1 | 1 |
| May | 9 | 2 | 3 | 2 | <1 |
| June | 19 | 8 | 0 | 2 | 0 |
| July | 28 | 20 | 0 | 1 | 0 |
| August | 27 | 19 | <1 | <1 | 0 |
| September | 15 | 6 | 1 | 1 | <1 |
| October | 3 | <1 | 13 | <1 | <1 |
| November | <1 | 0 | 26 | <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 | <1% | 12% | <1% | 7% | -4.2–4.8°C |
| February | 1% | 12% | <1% | 5% | -3.8–9.1°C |
| March | 9% | 15% | 2% | 10% | 4.7–14.1°C |
| April | 29% | 19% | 4% | 16% | 13.5–18.5°C |
| May | 53% | 26% | 7% | 30% | 18.5–24.6°C |
| June | 72% | 26% | 6% | 25% | 24.2–29.3°C |
| July | 84% | 17% | 3% | 11% | 29.5–34.5°C |
| August | 86% | 14% | 3% | 7% | 27.7–32.9°C |
| September | 74% | 15% | 4% | 12% | 22.0–27.7°C |
| October | 32% | 16% | 3% | 10% | 13.2–18.7°C |
| November | 5% | 13% | 1% | 7% | 3.8–12.2°C |
| December | <1% | 13% | <1% | 6% | -4.3–6.5°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 5674698
- NOAA station
- USC00243098 · FORSYTH
- Station distance
- 17.7 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 29 usable years
- Daylight
- Calculated from latitude 46.27°, 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.