When to plant in West Yellowstone, MT
Planting dates worked out from West Yellowstone's own frost records, not a generic zone chart.
Safe to plant out
Jul 10
1 year in 10 has a later frost
Average last frost
Jun 28
about a 50% chance of a later one
Average first fall frost
Aug 4
1 year in 10 by Jul 16
Frost-free days
36
median, 1991–2020
Station used: West Yellowstone · 1.1 km away · station 2042 m, town 2031 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 Season likely too short |
May 15 – May 29 | Jul 10 – Jul 24 | Sep 3 |
| Sweet pepper Season likely too short |
May 1 – May 15 | Jul 10 – Jul 24 | Sep 8 |
| Lettuce (leaf) | Apr 26 – May 3 | May 31 – Jun 14 | Jul 10 |
| Peas | — | May 17 – Jun 14 | Jul 11 |
| Bush beans Season likely too short |
— | Jul 3 – Jul 24 | Aug 22 |
| Carrot | — | Jun 7 – Jul 19 | Aug 6 |
| Beet | — | May 31 – Jul 12 | Jul 20 |
| Potato | — | Jun 7 – Jun 28 | Aug 16 |
| Kale | Apr 19 – May 3 | May 31 – Jun 14 | Jul 13 |
| Broccoli | Apr 19 – May 3 | May 31 – Jun 21 | Jul 30 |
| Cucumber Season likely too short |
Jun 12 – Jun 19 | Jul 10 – Jul 24 | Aug 29 |
| Summer squash and zucchini Season likely too short |
Jun 12 – Jun 19 | Jul 10 – Jul 24 | Aug 24 |
| Winter squash Season likely too short |
Jun 12 – Jun 19 | Jul 10 – Jul 24 | Sep 28 |
| Sweet corn Season likely too short |
— | Jul 3 – Jul 24 | Sep 1 |
| Onion (from sets) | — | May 31 – Jun 21 | Aug 29 |
| Garlic | — | Jul 21 – Aug 18 (fall) | following summer |
| Spinach | — | May 17 – Jun 14 | Jun 24 |
| Basil Season likely too short |
May 29 – Jun 12 | Jul 10 – Jul 24 | Sep 5 |
West Yellowstone'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 |
|---|---|
| 1999 | Jul 9 |
| 2000 | Jun 28 |
| 2001 | Jun 20 |
| 2002 | Jun 20 |
| 2003 | Jun 26 |
| 2004 | Jul 9 |
| 2005 | Jun 19 |
| 2006 | Jun 21 |
| 2007 | Jun 27 |
| 2008 | Jul 13 |
| 2009 | Jul 10 |
| 2010 | Jul 8 |
| 2011 | Jul 2 |
| 2012 | Jun 28 |
| 2013 | Jun 23 |
| 2014 | Jul 1 |
| 2015 | May 29 |
| 2016 | Jul 13 |
| 2017 | Jun 30 |
| 2018 | Jul 4 |
| 2019 | Jun 23 |
| 2020 | Jun 19 |
| 2021 | Jun 21 |
| 2022 | Jun 26 |
| 2023 | Jul 5 |
| 2024 | Jul 5 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1999 | 6 |
| 2000 | 44 |
| 2001 | 41 |
| 2002 | 41 |
| 2003 | 52 |
| 2004 | 29 |
| 2005 | 36 |
| 2006 | 42 |
| 2007 | 56 |
| 2008 | 33 |
| 2009 | 19 |
| 2010 | 6 |
| 2011 | 18 |
| 2012 | 36 |
| 2013 | 78 |
| 2014 | 23 |
| 2015 | 60 |
| 2016 | 3 |
| 2017 | 46 |
| 2018 | 32 |
| 2019 | 55 |
| 2020 | 25 |
| 2021 | 62 |
| 2022 | 74 |
| 2023 | 67 |
| 2024 | 47 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1999 | 8.9 °C |
| 2000 | 10.1 °C |
| 2001 | 10.6 °C |
| 2002 | 9.8 °C |
| 2003 | 10.5 °C |
| 2004 | 9.7 °C |
| 2005 | 9.7 °C |
| 2006 | 11.0 °C |
| 2007 | 11.5 °C |
| 2008 | 9.4 °C |
| 2009 | 10.1 °C |
| 2010 | 9.3 °C |
| 2011 | 9.8 °C |
| 2012 | 11.1 °C |
| 2013 | 11.1 °C |
| 2014 | 10.2 °C |
| 2015 | 10.9 °C |
| 2016 | 11.1 °C |
| 2017 | 10.9 °C |
| 2018 | 10.9 °C |
| 2019 | 10.2 °C |
| 2020 | 10.3 °C |
| 2021 | 10.8 °C |
| 2022 | 10.3 °C |
| 2023 | 10.5 °C |
| 2024 | 10.5 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from West Yellowstone (NOAA GHCN-Daily). Years with too many missing days are left out.