When to plant in Snowmass Village, CO
Planting dates worked out from Snowmass Village's own frost records, not a generic zone chart.
Safe to plant out
Jun 20
1 year in 10 has a later frost
Average last frost
Jun 6
about a 50% chance of a later one
Average first fall frost
Sep 20
1 year in 10 by Sep 8
Frost-free days
108
median, 1991–2020
Station used: Aspen 1sw · 9.1 km away · station 2492 m, town 2502 m. How we match towns to stations
This season
Plan your garden.
Planting dates for common crops
| Crop | Start indoors | Plant out or sow | Harvest from |
|---|---|---|---|
| Tomato | Apr 25 – May 9 | Jun 20 – Jul 4 | Aug 14 |
| Sweet pepper | Apr 11 – Apr 25 | Jun 20 – Jul 4 | Aug 19 |
| Lettuce (leaf) | Apr 4 – Apr 11 | May 9 – May 23 | Jun 18 |
| Peas | — | Apr 29 – May 27 | Jun 23 |
| Bush beans | — | Jun 13 – Jul 4 | Aug 2 |
| Carrot | — | May 16 – Jun 27 | Jul 15 |
| Beet | — | May 9 – Jun 20 | Jun 28 |
| Potato | — | May 16 – Jun 6 | Jul 25 |
| Kale | Mar 28 – Apr 11 | May 9 – May 23 | Jun 21 |
| Broccoli | Mar 28 – Apr 11 | May 9 – May 30 | Jul 8 |
| Cucumber | May 23 – May 30 | Jun 20 – Jul 4 | Aug 9 |
| Summer squash and zucchini | May 23 – May 30 | Jun 20 – Jul 4 | Aug 4 |
| Winter squash | May 23 – May 30 | Jun 20 – Jul 4 | Sep 8 |
| Sweet corn | — | Jun 13 – Jul 4 | Aug 12 |
| Onion (from sets) | — | May 9 – May 30 | Aug 7 |
| Garlic | — | Sep 6 – Oct 4 (fall) | following summer |
| Spinach | — | Apr 29 – May 27 | Jun 6 |
| Basil | May 9 – May 23 | Jun 20 – Jul 4 | Aug 16 |
Snowmass Village's weather over time
How the growing season has shifted here, year by year, from the station's own records.
Each year's last spring frostLong-term trend
See the data as a table
| Year | Last spring frost |
|---|---|
| 1981 | Jun 16 |
| 1982 | Jun 15 |
| 1983 | Jun 14 |
| 1984 | Jun 10 |
| 1985 | Jun 28 |
| 1986 | May 23 |
| 1987 | May 28 |
| 1989 | Jun 22 |
| 1990 | Jun 3 |
| 1991 | May 22 |
| 1992 | Jun 17 |
| 1993 | Jul 6 |
| 1994 | Jul 7 |
| 1995 | Jun 19 |
| 1997 | May 26 |
| 1998 | Jun 16 |
| 1999 | Jun 6 |
| 2000 | Jun 17 |
| 2001 | Jun 15 |
| 2002 | May 25 |
| 2003 | May 12 |
| 2004 | Jun 11 |
| 2005 | Jun 13 |
| 2006 | May 30 |
| 2007 | Jun 8 |
| 2008 | Jun 13 |
| 2009 | May 9 |
| 2010 | Jun 13 |
| 2011 | May 31 |
| 2013 | Jun 1 |
| 2014 | Jun 9 |
| 2015 | May 25 |
| 2016 | May 28 |
| 2017 | Jun 14 |
| 2018 | May 5 |
| 2019 | Jun 23 |
| 2020 | Jun 10 |
| 2021 | May 31 |
| 2022 | Jun 1 |
| 2023 | May 13 |
| 2024 | May 26 |
| 2025 | May 26 |
| 2026 | May 24 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1981 | 115 |
| 1982 | 90 |
| 1983 | 97 |
| 1984 | 89 |
| 1985 | 44 |
| 1986 | 110 |
| 1989 | 78 |
| 1990 | 121 |
| 1991 | 114 |
| 1992 | 68 |
| 1994 | 69 |
| 1995 | 93 |
| 1997 | 130 |
| 1999 | 106 |
| 2000 | 98 |
| 2001 | 83 |
| 2002 | 115 |
| 2003 | 121 |
| 2004 | 95 |
| 2005 | 92 |
| 2006 | 109 |
| 2007 | 108 |
| 2008 | 115 |
| 2009 | 135 |
| 2010 | 85 |
| 2011 | 128 |
| 2013 | 113 |
| 2014 | 94 |
| 2015 | 150 |
| 2016 | 110 |
| 2017 | 101 |
| 2018 | 142 |
| 2020 | 90 |
| 2021 | 112 |
| 2022 | 132 |
| 2023 | 142 |
| 2024 | 144 |
| 2025 | 120 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1981 | 12.3 °C |
| 1982 | 10.7 °C |
| 1983 | 11.0 °C |
| 1984 | 11.2 °C |
| 1985 | 12.0 °C |
| 1986 | 12.0 °C |
| 1987 | 12.3 °C |
| 1988 | 13.0 °C |
| 1989 | 12.5 °C |
| 1990 | 12.5 °C |
| 1991 | 12.1 °C |
| 1992 | 11.1 °C |
| 1993 | 9.9 °C |
| 1994 | 12.6 °C |
| 1995 | 11.2 °C |
| 1996 | 12.1 °C |
| 1997 | 11.6 °C |
| 1998 | 12.5 °C |
| 1999 | 11.7 °C |
| 2000 | 13.6 °C |
| 2001 | 13.4 °C |
| 2002 | 13.9 °C |
| 2003 | 13.1 °C |
| 2004 | 12.3 °C |
| 2005 | 12.4 °C |
| 2006 | 13.1 °C |
| 2007 | 13.5 °C |
| 2008 | 12.0 °C |
| 2009 | 12.0 °C |
| 2010 | 12.1 °C |
| 2011 | 11.6 °C |
| 2013 | 11.9 °C |
| 2014 | 11.5 °C |
| 2015 | 12.2 °C |
| 2016 | 11.9 °C |
| 2017 | 12.1 °C |
| 2018 | 13.3 °C |
| 2019 | 11.8 °C |
| 2020 | 12.5 °C |
| 2021 | 12.9 °C |
| 2022 | 12.5 °C |
| 2023 | 11.8 °C |
| 2024 | 12.3 °C |
| 2025 | 12.7 °C |
What this means for you: Since 1981, Snowmass Village's last spring frost has come about 4 days earlier per decade, on average. The frost-free season has grown by about 9 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Aspen 1sw (NOAA GHCN-Daily). Years with too many missing days are left out.