June
June · July · August
United States · 1991–2020
June leads for comfortable weather in Steamboat II: typically 24.3°C by day, 3.6°C at night, with 40 mm of rain. Based on measured 1991–2020 NOAA station history.
June · July · August
July · August · June
June · September · May
The weakest month is January, scoring 5 against June’s 74 — days reach only -1.6°C, 26° below the 24°C the score treats as ideal, and nights drop to -15.9°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 | -1.6°C | -15.9°C | 63 mm | 11.3 | 9 h 34 | 5 | Strong coverage |
| February | 1°C | -13.9°C | 54 mm | 10.5 | 10 h 35 | 5 | Strong coverage |
| March | 6.8°C | -8.6°C | 42 mm | 8.5 | 11 h 49 | 5 | Strong coverage |
| April | 12.3°C | -3.7°C | 66 mm | 10.4 | 13 h 13 | 17 | Strong coverage |
| May | 18.2°C | 0.4°C | 63 mm | 11 | 14 h 24 | 43 | Strong coverage |
| June | 24.3°C | 3.6°C | 40 mm | 6.7 | 15 h 03 | 74 | Strong coverage |
| July | 28.3°C | 7.1°C | 46 mm | 7.4 | 14 h 48 | 66 | Strong coverage |
| August | 27.4°C | 6.2°C | 50 mm | 9.5 | 13 h 47 | 65 | Strong coverage |
| September | 22.8°C | 1.8°C | 58 mm | 7.6 | 12 h 25 | 65 | Strong coverage |
| October | 15.1°C | -3.7°C | 56 mm | 8.1 | 11 h 03 | 30 | Strong coverage |
| November | 6.2°C | -8.9°C | 49 mm | 8.6 | 9 h 52 | 5 | Strong coverage |
| December | -1.2°C | -14.9°C | 54 mm | 10.5 | 9 h 17 | 5 | Strong coverage |
What has changed
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.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 13.9°C24 Jan 1910 | -47.8°C7 Jan 1913 | 38 mm29 Jan 1965 | 149 mm1996 · driest 6 mm in 1919 | 119 |
| February | 15.0°C13 Feb 1947 | -44.4°C10 Feb 1933 | 49 mm19 Feb 1986 | 131 mm1936 · driest 3 mm in 2004 | 121 |
| March | 27.2°C22 Mar 2026 | -36.7°C11 Mar 1948 | 31 mm20 Mar 1923 | 111 mm1932 · driest 6 mm in 2012 | 122 |
| April | 26.1°C30 Apr 1943 | -26.1°C4 Apr 1945 | 38 mm20 Apr 1971 | 139 mm2011 · driest 15 mm in 1966 | 123 |
| May | 35.0°C24 May 1897 | -13.3°C29 May 1927 | 43 mm18 May 1944 | 144 mm1995 · driest 2 mm in 1948 | 120 |
| June | 37.8°C29 Jun 1990 | -8.9°C1 Jun 1895 | 65 mm14 Jun 1921 | 142 mm2005 · driest 0 mm in 1893 | 120 |
| July | 37.2°C7 Jul 1897 | -6.1°C1 Jul 1895 | 45 mm7 Jul 2012 | 127 mm1912 · driest 0 mm in 1898 | 121 |
| August | 36.7°C12 Aug 2001 | -6.7°C26 Aug 1910 | 35 mm26 Aug 2023 | 136 mm1914 · driest 4 mm in 1893 | 118 |
| September | 33.9°C7 Sep 1908 | -14.4°C24 Sep 1926 | 65 mm22 Sep 1961 | 207 mm1961 · driest 2 mm in 1953 | 122 |
| October | 31.7°C10 Oct 1910 | -26.7°C27 Oct 1919 | 45 mm5 Oct 1911 | 152 mm1908 · driest 0 mm in 1952 | 121 |
| November | 22.2°C6 Nov 1909 | -33.3°C28 Nov 1976 | 40 mm26 Nov 1919 | 142 mm1985 · driest 4 mm in 1914 | 119 |
| December | 17.8°C11 Dec 1939 | -42.2°C18 Dec 1909 | 36 mm30 Dec 1951 | 185 mm1951 · driest 6 mm in 2011 | 120 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | 1 | 13 |
| February | 0 | 0 | 27 | 1 | 12 |
| March | 0 | 0 | 30 | <1 | 9 |
| April | <1 | 0 | 27 | 2 | 6 |
| May | 3 | <1 | 14 | 2 | 2 |
| June | 16 | 2 | 3 | 1 | <1 |
| July | 27 | 11 | <1 | <1 | 0 |
| August | 25 | 7 | <1 | 1 | 0 |
| September | 12 | 1 | 10 | 2 | <1 |
| October | 1 | 0 | 26 | 2 | 3 |
| November | 0 | 0 | 29 | 1 | 9 |
| December | 0 | 0 | 30 | 1 | 13 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 38% | 5% | 49% | -4.2–1.1°C |
| February | 0% | 36% | 5% | 49% | -1.6–3.8°C |
| March | <1% | 31% | 4% | 38% | 2.7–8.5°C |
| April | 10% | 30% | 5% | 35% | 8.7–15.7°C |
| May | 41% | 29% | 5% | 36% | 15.7–21.1°C |
| June | 72% | 21% | 4% | 19% | 21.7–26.8°C |
| July | 78% | 22% | 4% | 22% | 26.1–30.0°C |
| August | 73% | 26% | 3% | 27% | 25.1–28.9°C |
| September | 66% | 23% | 4% | 26% | 20.0–25.3°C |
| October | 29% | 22% | 5% | 23% | 12.0–18.9°C |
| November | <1% | 27% | 5% | 34% | 2.6–10.7°C |
| December | 0% | 36% | 5% | 48% | -3.6–2.6°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