When to plant in Swan River, MB
Planting dates worked out from Swan River's own frost records, not a generic zone chart.
Safe to plant out
Jun 1
1 year in 10 has a later frost
Average last frost
May 23
about a 50% chance of a later one
Average first fall frost
Sep 19
1 year in 10 by Sep 8
Frost-free days
121
median, 1991–2020
Station used: Swan River Rcs · 2.6 km away · station 335 m, town 340 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 6 – Apr 20 | Jun 1 – Jun 15 | Jul 26 |
| Sweet pepper | Mar 23 – Apr 6 | Jun 1 – Jun 15 | Jul 31 |
| Lettuce (leaf) | Mar 25 – Apr 1 | Apr 29 – May 13 | Jun 8 |
| Peas | — | Apr 29 – May 27 | Jun 23 |
| Bush beans | — | May 25 – Jun 15 | Jul 14 |
| Carrot | — | May 8 – Jun 19 | Jul 7 |
| Beet | — | May 8 – Jun 19 | Jun 27 |
| Potato | — | May 8 – May 29 | Jul 17 |
| Kale | Mar 25 – Apr 8 | May 6 – May 20 | Jun 18 |
| Broccoli | Mar 18 – Apr 1 | Apr 29 – May 20 | Jun 28 |
| Cucumber | May 4 – May 11 | Jun 1 – Jun 15 | Jul 21 |
| Summer squash and zucchini | May 4 – May 11 | Jun 1 – Jun 15 | Jul 16 |
| Winter squash | May 4 – May 11 | Jun 1 – Jun 15 | Aug 20 |
| Sweet corn | — | May 25 – Jun 15 | Jul 24 |
| Onion (from sets) | — | Apr 29 – May 20 | Jul 28 |
| Garlic | — | Sep 5 – Oct 3 (fall) | following summer |
| Spinach | — | Apr 29 – May 27 | Jun 6 |
| Basil | Apr 20 – May 4 | Jun 1 – Jun 15 | Jul 28 |
Swan River'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 |
|---|---|
| 1996 | May 24 |
| 1997 | May 21 |
| 1998 | May 31 |
| 1999 | May 18 |
| 2000 | May 18 |
| 2001 | Jun 3 |
| 2002 | May 24 |
| 2003 | May 11 |
| 2004 | May 26 |
| 2005 | May 16 |
| 2006 | May 21 |
| 2007 | May 26 |
| 2008 | May 21 |
| 2009 | Jun 6 |
| 2010 | May 9 |
| 2011 | May 24 |
| 2012 | May 26 |
| 2013 | Jun 2 |
| 2014 | May 21 |
| 2015 | May 31 |
| 2016 | May 14 |
| 2017 | May 19 |
| 2018 | May 19 |
| 2019 | May 26 |
| 2020 | May 16 |
| 2021 | May 27 |
| 2022 | May 16 |
| 2023 | May 2 |
| 2024 | Apr 30 |
| 2025 | May 19 |
| 2026 | May 20 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1997 | 121 |
| 1998 | 121 |
| 1999 | 119 |
| 2000 | 125 |
| 2001 | 106 |
| 2002 | 123 |
| 2003 | 140 |
| 2004 | 127 |
| 2005 | 128 |
| 2006 | 108 |
| 2007 | 107 |
| 2008 | 121 |
| 2009 | 123 |
| 2010 | 131 |
| 2011 | 111 |
| 2012 | 112 |
| 2013 | 104 |
| 2014 | 111 |
| 2015 | 119 |
| 2016 | 124 |
| 2017 | 121 |
| 2018 | 108 |
| 2019 | 98 |
| 2020 | 122 |
| 2021 | 134 |
| 2022 | 119 |
| 2023 | 132 |
| 2024 | 155 |
| 2025 | 110 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1997 | 12.0 °C |
| 1998 | 13.4 °C |
| 1999 | 12.2 °C |
| 2000 | 11.8 °C |
| 2001 | 13.3 °C |
| 2002 | 12.0 °C |
| 2003 | 13.6 °C |
| 2004 | 10.9 °C |
| 2006 | 13.5 °C |
| 2007 | 12.3 °C |
| 2008 | 12.1 °C |
| 2009 | 12.1 °C |
| 2010 | 12.8 °C |
| 2011 | 13.2 °C |
| 2012 | 13.6 °C |
| 2013 | 12.3 °C |
| 2014 | 12.1 °C |
| 2015 | 13.4 °C |
| 2016 | 13.0 °C |
| 2017 | 13.0 °C |
| 2018 | 11.9 °C |
| 2019 | 12.4 °C |
| 2020 | 12.1 °C |
| 2021 | 13.8 °C |
| 2022 | 12.6 °C |
| 2023 | 13.6 °C |
| 2024 | 14.1 °C |
| 2025 | 13.8 °C |
| 2026 | 12.8 °C |
What this means for you: Since 1996, Swan River's last spring frost has come about 3 days earlier per decade, on average. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Swan River Rcs (NOAA GHCN-Daily, from Environment and Climate Change Canada). Years with too many missing days are left out.