April
April · October · March
United States · 1991–2020
April leads for comfortable weather in Rosebud: typically 25.6°C by day, 13.6°C at night, with 59 mm of rain. Based on measured 1991–2020 NOAA station history.
April · October · March
September · July · June
February · March · November
The weakest month is January, scoring 47 against April’s 87 — days reach only 16.4°C, 8° below the 24°C the score treats as ideal, and nights drop to 3.9°C.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 16.4°C | 3.9°C | 70 mm | 6.1 | 10 h 20 | 47 | Good coverage |
| February | 18.6°C | 6°C | 62 mm | 5.2 | 11 h 02 | 60 | Good coverage |
| March | 21.8°C | 9.6°C | 76 mm | 6.9 | 11 h 54 | 74 | Good coverage |
| April | 25.6°C | 13.6°C | 59 mm | 5.2 | 12 h 53 | 87 | Good coverage |
| May | 28.9°C | 18.4°C | 129 mm | 6.9 | 13 h 43 | 61 | Good coverage |
| June | 31.9°C | 21.5°C | 100 mm | 6.8 | 14 h 09 | 50 | Good coverage |
| July | 33.9°C | 22.7°C | 53 mm | 3.5 | 13 h 59 | 51 | Good coverage |
| August | 34.4°C | 22.4°C | 63 mm | 3.7 | 13 h 17 | 48 | Good coverage |
| September | 31.7°C | 19.3°C | 76 mm | 4.6 | 12 h 19 | 60 | Good coverage |
| October | 26.9°C | 14.2°C | 114 mm | 5.4 | 11 h 22 | 76 | Good coverage |
| November | 21.2°C | 8.6°C | 93 mm | 5.4 | 10 h 32 | 69 | Good coverage |
| December | 17.3°C | 4.4°C | 93 mm | 6.9 | 10 h 08 | 47 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 32.2°C23 Jan 1943 | -21.7°C17 Jan 1930 | 102 mm22 Jan 1965 | 230 mm1991 · driest 0 mm in 1971 | 98 |
| February | 36.7°C20 Feb 1986 | -15.0°C2 Feb 1951 | 77 mm3 Feb 1986 | 189 mm1992 · driest 0 mm in 1916 | 99 |
| March | 37.8°C25 Mar 1928 | -9.4°C3 Mar 1943 | 69 mm11 Mar 2007 | 207 mm2007 · driest 2 mm in 1971 | 99 |
| April | 37.8°C9 Apr 1963 | -2.2°C3 Apr 1987 | 185 mm22 Apr 1915 | 387 mm1915 · driest 1 mm in 1984 | 98 |
| May | 40.6°C26 May 1928 | 4.4°C1 May 2005 | 164 mm24 May 1908 | 280 mm2007 · driest 12 mm in 1998 | 99 |
| June | 41.7°C21 Jun 1936 | 8.3°C10 Jun 1919 | 116 mm26 Jun 1960 | 290 mm2004 · driest 0 mm in 1933 | 95 |
| July | 45.6°C10 Jul 1917 | 14.4°C16 Jul 1967 | 201 mm27 Jul 1979 | 335 mm2007 · driest 0 mm in 1930 | 96 |
| August | 45.0°C17 Aug 1909 | 13.9°C21 Aug 1940 | 120 mm21 Aug 1919 | 206 mm1919 · driest 0 mm in 2000 | 92 |
| September | 43.3°C4 Sep 2000 | 5.0°C27 Sep 1942 | 316 mm10 Sep 1921 | 392 mm1921 · driest 1 mm in 1982 | 98 |
| October | 41.1°C2 Oct 1938 | -3.9°C30 Oct 1917 | 193 mm14 Oct 1957 | 293 mm1957 · driest 0 mm in 1952 | 98 |
| November | 32.8°C1 Nov 1955 | -9.4°C30 Nov 1911 | 86 mm15 Nov 1954 | 293 mm2004 · driest 0 mm in 2008 | 97 |
| December | 31.1°C25 Dec 1955 | -16.7°C23 Dec 1989 | 154 mm21 Dec 1991 | 306 mm1913 · driest 5 mm in 1922 | 98 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 2 | 0 | 9 | 2 |
| February | 4 | <1 | 5 | 2 |
| March | 10 | <1 | 2 | 2 |
| April | 19 | 3 | <1 | 2 |
| May | 27 | 13 | 0 | 4 |
| June | 30 | 24 | 0 | 3 |
| July | 31 | 28 | 0 | 2 |
| August | 31 | 29 | 0 | 2 |
| September | 29 | 22 | 0 | 2 |
| October | 23 | 8 | <1 | 3 |
| November | 9 | <1 | 3 | 3 |
| December | 3 | 0 | 8 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 33% | 19% | 7% | 19% | 12.9–19.7°C |
| February | 44% | 20% | 8% | 18% | 15.1–22.3°C |
| March | 63% | 19% | 7% | 13% | 19.1–25.8°C |
| April | 78% | 19% | 9% | 18% | 24.1–28.8°C |
| May | 79% | 21% | 11% | 20% | 27.9–32.0°C |
| June | 82% | 18% | 8% | 17% | 31.2–35.2°C |
| July | 88% | 12% | 4% | 8% | 33.2–37.8°C |
| August | 88% | 12% | 5% | 11% | 33.9–38.2°C |
| September | 83% | 18% | 8% | 16% | 30.5–35.2°C |
| October | 81% | 16% | 7% | 14% | 25.8–30.6°C |
| November | 59% | 18% | 8% | 17% | 19.4–24.8°C |
| December | 34% | 20% | 8% | 18% | 14.2–20.4°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