When to plant in South Browning, MT
Planting dates worked out from South Browning's own frost records, not a generic zone chart.
Safe to plant out
Jun 12
1 year in 10 has a later frost
Average last frost
May 26
about a 50% chance of a later one
Average first fall frost
Sep 11
1 year in 10 by Aug 30
Frost-free days
109
median, 1991–2020
Station used: Browning Bfa Montana · 1.7 km away · station 1336 m, town 1339 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 17 – May 1 | Jun 12 – Jun 26 | Aug 6 |
| Sweet pepper | Apr 3 – Apr 17 | Jun 12 – Jun 26 | Aug 11 |
| Lettuce (leaf) | Mar 25 – Apr 1 | Apr 29 – May 13 | Jun 8 |
| Peas | — | Apr 29 – May 27 | Jun 23 |
| Bush beans | — | Jun 5 – Jun 26 | Jul 25 |
| Carrot | — | May 11 – Jun 22 | Jul 10 |
| Beet | — | May 11 – Jun 22 | Jun 30 |
| Potato | — | May 11 – Jun 1 | Jul 20 |
| Kale | Mar 25 – Apr 8 | May 6 – May 20 | Jun 18 |
| Broccoli | Mar 18 – Apr 1 | Apr 29 – May 20 | Jun 28 |
| Cucumber | May 15 – May 22 | Jun 12 – Jun 26 | Aug 1 |
| Summer squash and zucchini | May 15 – May 22 | Jun 12 – Jun 26 | Jul 27 |
| Winter squash Season likely too short |
May 15 – May 22 | Jun 12 – Jun 26 | Aug 31 |
| Sweet corn | — | Jun 5 – Jun 26 | Aug 4 |
| Onion (from sets) | — | Apr 29 – May 20 | Jul 28 |
| Garlic | — | Aug 28 – Sep 25 (fall) | following summer |
| Spinach | — | Apr 29 – May 27 | Jun 6 |
| Basil | May 1 – May 15 | Jun 12 – Jun 26 | Aug 8 |
South Browning'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 |
|---|---|
| 2004 | Jun 18 |
| 2005 | May 30 |
| 2006 | May 14 |
| 2007 | May 26 |
| 2008 | Jun 10 |
| 2010 | Jun 12 |
| 2011 | May 18 |
| 2012 | May 29 |
| 2013 | May 26 |
| 2014 | Jun 12 |
| 2015 | May 21 |
| 2016 | May 15 |
| 2018 | May 12 |
| 2019 | May 19 |
| 2020 | May 9 |
| 2021 | May 23 |
| 2023 | Jun 21 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 2004 | 101 |
| 2005 | 74 |
| 2006 | 110 |
| 2007 | 109 |
| 2008 | 82 |
| 2010 | 85 |
| 2011 | 108 |
| 2012 | 105 |
| 2013 | 122 |
| 2014 | 76 |
| 2015 | 123 |
| 2016 | 119 |
| 2018 | 114 |
| 2019 | 130 |
| 2020 | 121 |
| 2021 | 101 |
| 2023 | 105 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 2004 | 11.8 °C |
| 2005 | 11.3 °C |
| 2006 | 13.2 °C |
| 2007 | 12.6 °C |
| 2008 | 11.5 °C |
| 2010 | 10.6 °C |
| 2011 | 11.6 °C |
| 2012 | 13.0 °C |
| 2013 | 12.3 °C |
| 2014 | 12.0 °C |
| 2015 | 12.5 °C |
| 2016 | 12.6 °C |
| 2018 | 11.9 °C |
| 2019 | 11.7 °C |
| 2020 | 12.3 °C |
| 2021 | 12.8 °C |
| 2023 | 13.3 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from Browning Bfa Montana (NOAA GHCN-Daily). Years with too many missing days are left out.