May
May · September · August
United States · 1991–2020
May leads for comfortable weather in Steamboat: typically 23.7°C by day, 4.1°C at night, with 15 mm of rain. Based on measured 1991–2020 NOAA station history.
May · September · August
August · July · June
October · May · April
The weakest month is January, scoring 5 against May’s 80 — days reach only 6.5°C, 17° below the 24°C the score treats as ideal, and nights drop to -8.8°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 | 6.5°C | -8.8°C | 14 mm | 2.4 | 9 h 59 | 5 | Strong coverage |
| February | 9.4°C | -6.6°C | 14 mm | 2.8 | 10 h 50 | 13 | Strong coverage |
| March | 14.3°C | -3.4°C | 15 mm | 2.5 | 11 h 51 | 35 | Strong coverage |
| April | 18.5°C | -0.6°C | 9 mm | 1.4 | 13 h 03 | 54 | Strong coverage |
| May | 23.7°C | 4.1°C | 15 mm | 2.1 | 14 h 02 | 80 | Good coverage |
| June | 29.6°C | 8.7°C | 5 mm | 1 | 14 h 34 | 70 | Strong coverage |
| July | 31.5°C | 13.2°C | 30 mm | 4.3 | 14 h 21 | 71 | Good coverage |
| August | 30.2°C | 12.9°C | 37 mm | 4.6 | 13 h 30 | 74 | Good coverage |
| September | 26.9°C | 8.9°C | 26 mm | 2.7 | 12 h 22 | 79 | Good coverage |
| October | 20.5°C | 2°C | 19 mm | 2.9 | 11 h 13 | 65 | Good coverage |
| November | 13°C | -4.3°C | 17 mm | 1.7 | 10 h 14 | 29 | Strong coverage |
| December | 6.8°C | -8.7°C | 17 mm | 2.8 | 9 h 45 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 18.3°C7 Jan 1983 | -32.8°C22 Jan 1937 | 20 mm18 Jan 1993 | 65 mm1993 · driest 0 mm in 1976 | 84 |
| February | 22.2°C6 Feb 1944 | -31.7°C8 Feb 1933 | 38 mm2 Feb 1990 | 75 mm1982 · driest 0 mm in 2014 | 85 |
| March | 29.4°C24 Mar 1940 | -22.8°C4 Mar 1966 | 28 mm31 Mar 1970 | 83 mm2000 · driest 0 mm in 1989 | 84 |
| April | 32.2°C21 Apr 1938 | -15.0°C1 Apr 1970 | 37 mm29 Apr 1985 | 88 mm1941 · driest 0 mm in 2014 | 86 |
| May | 36.7°C20 May 2008 | -9.4°C1 May 1967 | 27 mm10 May 1992 | 77 mm1992 · driest 0 mm in 1996 | 86 |
| June | 38.3°C28 Jun 2013 | -2.8°C8 Jun 1950 | 66 mm23 Jun 1941 | 81 mm1941 · driest 0 mm in 2013 | 86 |
| July | 38.3°C14 Jul 1971 | -0.6°C3 Jul 1995 | 48 mm16 Jul 1974 | 137 mm1999 · driest 0 mm in 2016 | 85 |
| August | 38.9°C4 Aug 1940 | 1.7°C23 Aug 1968 | 76 mm7 Aug 1959 | 138 mm1959 · driest 0 mm in 2009 | 86 |
| September | 35.6°C1 Sep 1939 | -2.8°C26 Sep 1970 | 48 mm11 Sep 2002 | 119 mm1940 · driest 0 mm in 1989 | 86 |
| October | 33.3°C4 Oct 2007 | -11.7°C20 Oct 1949 | 38 mm30 Oct 1936 | 98 mm1972 · driest 0 mm in 1995 | 85 |
| November | 30.6°C3 Nov 2008 | -26.7°C24 Nov 1931 | 68 mm22 Nov 2013 | 110 mm1978 · driest 0 mm in 1984 | 86 |
| December | 22.8°C11 Dec 1939 | -28.9°C22 Dec 1968 | 28 mm12 Dec 1991 | 75 mm1978 · driest 0 mm in 1930 | 83 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 23 | <1 | 1 |
| February | 0 | 0 | 22 | <1 | <1 |
| March | <1 | 0 | 21 | <1 | <1 |
| April | 1 | 0 | 14 | <1 | 0 |
| May | 11 | 2 | 3 | <1 | 0 |
| June | 21 | 13 | <1 | <1 | 0 |
| July | 26 | 20 | 0 | 1 | 0 |
| August | 23 | 14 | 0 | <1 | 0 |
| September | 19 | 5 | <1 | <1 | 0 |
| October | 5 | <1 | 7 | <1 | <1 |
| November | 0 | 0 | 20 | <1 | <1 |
| December | 0 | 0 | 23 | <1 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 10% | 1% | 6% | 2.1–9.1°C |
| February | <1% | 13% | 1% | 11% | 5.5–11.8°C |
| March | 9% | 12% | 1% | 8% | 9.7–16.5°C |
| April | 41% | 9% | 1% | 5% | 14.9–20.2°C |
| May | 74% | 8% | <1% | 4% | 20.3–25.6°C |
| June | 94% | 5% | <1% | 3% | 27.0–30.9°C |
| July | 82% | 18% | 4% | 19% | 29.6–32.8°C |
| August | 78% | 21% | 4% | 20% | 27.4–31.5°C |
| September | 83% | 13% | 3% | 10% | 23.7–27.9°C |
| October | 53% | 12% | 3% | 9% | 17.3–22.7°C |
| November | 7% | 9% | 2% | 6% | 8.8–15.4°C |
| December | <1% | 12% | 2% | 9% | 3.1–9.9°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