April
April · May · November
United States · 1991–2020
April leads for comfortable weather in Arbolada: typically 24.3°C by day, 6.3°C at night, with 27 mm of rain. Based on measured 1991–2020 NOAA station history.
April · May · November
June · July · September
April · May · November
The weakest month is January, scoring 50 against April’s 83 — nights drop to 2.5°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 | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 20°C | 2.5°C | 120 mm | 5.4 | 14.5°C | 10 h 05 | 50 | Strong coverage |
| February | 20.4°C | 3.3°C | 135 mm | 6.1 | 14.3°C | 10 h 53 | 50 | Strong coverage |
| March | 21.9°C | 4.8°C | 90 mm | 5.4 | 14.1°C | 11 h 52 | 65 | Strong coverage |
| April | 24.3°C | 6.3°C | 27 mm | 2.3 | 13.9°C | 13 h | 83 | Strong coverage |
| May | 25.9°C | 8.8°C | 13 mm | 1.7 | 14.8°C | 13 h 56 | 83 | Strong coverage |
| June | 28.6°C | 11.1°C | 3 mm | 0.6 | 16.6°C | 14 h 27 | 78 | Strong coverage |
| July | 32.3°C | 13.4°C | 2 mm | 0.3 | 18.3°C | 14 h 15 | 70 | Strong coverage |
| August | 33.6°C | 13.1°C | 0 mm | 0 | 18.7°C | 13 h 26 | 65 | Strong coverage |
| September | 32.1°C | 11.7°C | 2 mm | 0.4 | 18.7°C | 12 h 21 | 67 | Strong coverage |
| October | 28.1°C | 8.3°C | 21 mm | 1.6 | 18.1°C | 11 h 15 | 74 | Strong coverage |
| November | 23.5°C | 4.4°C | 33 mm | 2.7 | 16.7°C | 10 h 19 | 79 | Strong coverage |
| December | 19.4°C | 2°C | 77 mm | 4.4 | 15.1°C | 9 h 52 | 54 | 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 | 32.8°C15 Jan 2021 | -10.6°C7 Jan 1913 | 207 mm26 Jan 1914 | 654 mm1969 · driest 0 mm in 1948 | 119 |
| February | 33.3°C18 Feb 1912 | -5.6°C6 Feb 1989 | 230 mm24 Feb 1913 | 604 mm1998 · driest 0 mm in 2022 | 119 |
| March | 37.2°C18 Mar 2026 | -3.9°C5 Mar 1923 | 201 mm2 Mar 1938 | 368 mm1978 · driest 0 mm in 2026 | 117 |
| April | 40.0°C3 Apr 1961 | -2.8°C6 Apr 1921 | 85 mm1 Apr 1958 | 247 mm1926 · driest 0 mm in 1970 | 119 |
| May | 40.6°C13 May 1927 | -0.6°C1 May 1937 | 61 mm9 May 1977 | 103 mm1998 · driest 0 mm in 1944 | 120 |
| June | 48.3°C16 Jun 1917 | 2.2°C6 Jun 1939 | 20 mm5 Jun 1993 | 41 mm1993 · driest 0 mm in 1986 | 119 |
| July | 47.2°C26 Jul 1933 | 4.4°C16 Jul 2004 | 25 mm20 Jul 2015 | 34 mm2015 · driest 0 mm in 2018 | 119 |
| August | 46.1°C23 Aug 1931 | 3.9°C24 Aug 2005 | 49 mm21 Aug 2023 | 63 mm2023 · driest 0 mm in 1986 | 120 |
| September | 47.2°C7 Sep 2020 | 2.8°C8 Sep 1910 | 104 mm15 Sep 1910 | 142 mm1976 · driest 0 mm in 1907 | 121 |
| October | 42.8°C3 Oct 2024 | -3.9°C31 Oct 2019 | 80 mm30 Oct 1996 | 146 mm2004 · driest 0 mm in 1955 | 120 |
| November | 37.8°C14 Nov 1906 | -5.0°C12 Nov 1938 | 124 mm8 Nov 2002 | 350 mm1965 · driest 0 mm in 1937 | 120 |
| December | 34.4°C3 Dec 1958 | -8.9°C22 Dec 1990 | 135 mm4 Dec 1974 | 325 mm1921 · driest 0 mm in 1963 | 118 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 5 | <1 | 9 | 3 |
| February | 6 | 1 | 6 | 3 |
| March | 10 | 2 | 2 | 2 |
| April | 13 | 5 | <1 | <1 |
| May | 16 | 7 | 0 | <1 |
| June | 23 | 11 | 0 | <1 |
| July | 29 | 21 | 0 | <1 |
| August | 29 | 24 | 0 | 0 |
| September | 26 | 19 | 0 | 0 |
| October | 21 | 12 | <1 | <1 |
| November | 12 | 4 | 4 | 1 |
| December | 4 | <1 | 10 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 44% | 18% | 10% | 19% | 16.5–22.3°C |
| February | 47% | 19% | 11% | 21% | 17.5–23.3°C |
| March | 57% | 17% | 8% | 16% | 18.1–24.4°C |
| April | 73% | 10% | 4% | 6% | 21.0–26.2°C |
| May | 85% | 5% | 1% | 2% | 22.1–28.1°C |
| June | 96% | 2% | <1% | <1% | 25.9–31.2°C |
| July | 99% | <1% | <1% | <1% | 30.4–35.1°C |
| August | 99% | <1% | <1% | <1% | 31.0–35.0°C |
| September | 97% | 2% | <1% | <1% | 29.3–34.2°C |
| October | 92% | 5% | 2% | 3% | 25.4–30.5°C |
| November | 75% | 10% | 5% | 8% | 21.0–26.7°C |
| December | 48% | 15% | 8% | 13% | 17.3–22.8°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