May
May · April · October
United States · 1991–2020
May leads for comfortable weather in Aspen Heights: typically 27.4°C by day, 13.7°C at night, with 63 mm of rain. Based on measured 1991–2020 NOAA station history.
May · April · October
September · August · July
October · April · November
The weakest month is January, scoring 19 against May’s 80 — days reach only 11.9°C, 12° below the 24°C the score treats as ideal, and nights drop to -0.3°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 | 11.9°C | -0.3°C | 99 mm | 8 | 10 h 06 | 19 | Good coverage |
| February | 14.1°C | 0.8°C | 95 mm | 6.9 | 10 h 54 | 30 | Good coverage |
| March | 18.8°C | 4.1°C | 124 mm | 7.1 | 11 h 52 | 47 | Good coverage |
| April | 23.5°C | 8.5°C | 67 mm | 6.3 | 12 h 59 | 79 | Good coverage |
| May | 27.4°C | 13.7°C | 63 mm | 5.4 | 13 h 55 | 80 | Good coverage |
| June | 30.9°C | 18.5°C | 105 mm | 8 | 14 h 25 | 57 | Good coverage |
| July | 32.7°C | 20.4°C | 87 mm | 7.6 | 14 h 14 | 50 | Good coverage |
| August | 31.8°C | 20.1°C | 95 mm | 7.5 | 13 h 26 | 52 | Good coverage |
| September | 28.8°C | 16.2°C | 78 mm | 6 | 12 h 21 | 73 | Good coverage |
| October | 23.1°C | 9.9°C | 82 mm | 6.1 | 11 h 16 | 79 | Good coverage |
| November | 17.9°C | 4.3°C | 93 mm | 6.6 | 10 h 20 | 49 | Good coverage |
| December | 12.9°C | 0.4°C | 76 mm | 6.3 | 9 h 53 | 28 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 27.8°C12 Jan 1949 | -18.9°C22 Jan 1985 | 87 mm20 Jan 1969 | 263 mm1936 · driest 11 mm in 1907 | 116 |
| February | 27.2°C26 Feb 1930 | -20.6°C14 Feb 1899 | 82 mm2 Feb 1916 | 248 mm1899 · driest 5 mm in 2009 | 115 |
| March | 31.7°C26 Mar 2007 | -16.1°C3 Mar 1980 | 114 mm20 Mar 1944 | 363 mm2009 · driest 10 mm in 2004 | 115 |
| April | 35.6°C18 Apr 1896 | -4.4°C1 Apr 1987 | 92 mm16 Apr 1969 | 263 mm1936 · driest 7 mm in 2008 | 113 |
| May | 38.9°C29 May 1941 | 0.0°C8 May 1989 | 102 mm15 May 1943 | 224 mm1976 · driest 1 mm in 2007 | 115 |
| June | 40.6°C28 Jun 1954 | 5.0°C1 Jun 1984 | 121 mm24 Jun 1919 | 280 mm1994 · driest 17 mm in 1993 | 113 |
| July | 42.8°C19 Jul 1913 | 9.4°C3 Jul 2008 | 145 mm9 Jul 1896 | 399 mm1896 · driest 11 mm in 1987 | 114 |
| August | 41.7°C18 Aug 1954 | 10.0°C30 Aug 1968 | 189 mm13 Aug 1940 | 373 mm1928 · driest 4 mm in 2001 | 114 |
| September | 40.0°C7 Sep 1954 | 1.7°C30 Sep 1967 | 143 mm26 Sep 1929 | 363 mm1929 · driest 0 mm in 2005 | 113 |
| October | 37.8°C7 Oct 1954 | -4.4°C3 Oct 2003 | 204 mm9 Oct 1976 | 322 mm1929 · driest 0 mm in 2000 | 113 |
| November | 31.7°C3 Nov 1961 | -10.6°C26 Nov 1950 | 103 mm27 Nov 1963 | 261 mm1948 · driest 10 mm in 1910 | 116 |
| December | 26.7°C1 Dec 1933 | -17.2°C13 Dec 1962 | 73 mm8 Dec 1919 | 245 mm1983 · driest 1 mm in 2006 | 116 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | <1 | 0 | 16 | 4 | <1 |
| February | <1 | 0 | 12 | 3 | <1 |
| March | 4 | <1 | 7 | 4 | <1 |
| April | 12 | 2 | 1 | 3 | 0 |
| May | 22 | 8 | 0 | 2 | 0 |
| June | 27 | 20 | 0 | 3 | 0 |
| July | 29 | 26 | 0 | 3 | 0 |
| August | 29 | 23 | 0 | 3 | 0 |
| September | 25 | 12 | 0 | 2 | 0 |
| October | 11 | <1 | <1 | 2 | 0 |
| November | 2 | 0 | 7 | 3 | 0 |
| December | <1 | 0 | 15 | 3 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 7% | 28% | 13% | 31% | 8.8–15.0°C |
| February | 12% | 29% | 14% | 34% | 10.7–16.4°C |
| March | 33% | 28% | 13% | 29% | 15.1–21.3°C |
| April | 61% | 24% | 10% | 23% | 21.0–25.3°C |
| May | 75% | 23% | 10% | 23% | 25.4–30.1°C |
| June | 74% | 26% | 10% | 27% | 29.2–33.5°C |
| July | 71% | 29% | 12% | 34% | 30.4–34.2°C |
| August | 75% | 26% | 11% | 28% | 29.8–33.5°C |
| September | 79% | 21% | 9% | 20% | 27.0–31.2°C |
| October | 68% | 18% | 8% | 16% | 21.2–25.4°C |
| November | 31% | 21% | 9% | 20% | 15.2–20.1°C |
| December | 7% | 26% | 11% | 28% | 9.6–15.3°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