When to plant in Selkirk, MB
Planting dates worked out from Selkirk's own frost records, not a generic zone chart.
Safe to plant out
May 29
1 year in 10 has a later frost
Average last frost
May 19
about a 50% chance of a later one
Average first fall frost
Sep 24
1 year in 10 by Sep 14
Frost-free days
125
median, 1991–2020
Station used: Stony Mountain · 20.3 km away · station 236 m, town 227 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 3 – Apr 17 | May 29 – Jun 12 | Jul 23 |
| Sweet pepper | Mar 20 – Apr 3 | May 29 – Jun 12 | Jul 28 |
| Lettuce (leaf) | Mar 19 – Mar 26 | Apr 23 – May 7 | Jun 2 |
| Peas | — | Apr 23 – May 21 | Jun 17 |
| Bush beans | — | May 22 – Jun 12 | Jul 11 |
| Carrot | — | May 2 – Jun 13 | Jul 1 |
| Beet | — | May 2 – Jun 13 | Jun 21 |
| Potato | — | May 2 – May 23 | Jul 11 |
| Kale | Mar 19 – Apr 2 | Apr 30 – May 14 | Jun 12 |
| Broccoli | Mar 12 – Mar 26 | Apr 23 – May 14 | Jun 22 |
| Cucumber | May 1 – May 8 | May 29 – Jun 12 | Jul 18 |
| Summer squash and zucchini | May 1 – May 8 | May 29 – Jun 12 | Jul 13 |
| Winter squash | May 1 – May 8 | May 29 – Jun 12 | Aug 17 |
| Sweet corn | — | May 22 – Jun 12 | Jul 21 |
| Onion (from sets) | — | Apr 23 – May 14 | Jul 22 |
| Garlic | — | Sep 10 – Oct 8 (fall) | following summer |
| Spinach | — | Apr 23 – May 21 | May 31 |
| Basil | Apr 17 – May 1 | May 29 – Jun 12 | Jul 25 |
Selkirk'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 |
|---|---|
| 1972 | Jun 20 |
| 1973 | May 17 |
| 1974 | May 17 |
| 1975 | May 15 |
| 1976 | May 24 |
| 1977 | May 7 |
| 1978 | May 20 |
| 1979 | May 21 |
| 1980 | May 15 |
| 1981 | May 12 |
| 1982 | Jun 3 |
| 1983 | Jun 5 |
| 1985 | Jun 3 |
| 1986 | May 18 |
| 1988 | May 16 |
| 1989 | Jun 4 |
| 1990 | May 19 |
| 1992 | May 25 |
| 1993 | May 26 |
| 1994 | May 26 |
| 1995 | May 15 |
| 1996 | May 12 |
| 1997 | May 18 |
| 1998 | May 29 |
| 1999 | May 18 |
| 2000 | May 18 |
| 2001 | May 3 |
| 2002 | May 24 |
| 2003 | May 20 |
| 2004 | May 16 |
| 2005 | May 16 |
| 2006 | May 21 |
| 2007 | Apr 23 |
| 2009 | Jun 6 |
| 2010 | May 9 |
| 2011 | May 26 |
| 2012 | May 4 |
| 2013 | May 12 |
| 2014 | May 17 |
| 2015 | May 30 |
| 2017 | May 19 |
| 2018 | May 11 |
| 2019 | May 27 |
| 2020 | May 30 |
| 2021 | May 28 |
| 2022 | May 4 |
| 2023 | May 5 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1972 | 92 |
| 1974 | 120 |
| 1975 | 115 |
| 1976 | 99 |
| 1977 | 145 |
| 1978 | 139 |
| 1979 | 123 |
| 1980 | 125 |
| 1983 | 108 |
| 1985 | 108 |
| 1986 | 113 |
| 1988 | 112 |
| 1989 | 97 |
| 1990 | 119 |
| 1992 | 105 |
| 1994 | 122 |
| 1995 | 121 |
| 1996 | 134 |
| 1997 | 124 |
| 1998 | 125 |
| 1999 | 124 |
| 2000 | 127 |
| 2001 | 143 |
| 2002 | 122 |
| 2003 | 125 |
| 2004 | 138 |
| 2005 | 142 |
| 2006 | 119 |
| 2007 | 143 |
| 2009 | 114 |
| 2010 | 145 |
| 2011 | 111 |
| 2012 | 132 |
| 2013 | 126 |
| 2014 | 140 |
| 2015 | 121 |
| 2017 | 143 |
| 2018 | 139 |
| 2019 | 123 |
| 2020 | 109 |
| 2021 | 141 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1972 | 13.4 °C |
| 1973 | 13.1 °C |
| 1974 | 12.2 °C |
| 1975 | 13.3 °C |
| 1976 | 14.8 °C |
| 1977 | 14.6 °C |
| 1978 | 13.9 °C |
| 1979 | 12.1 °C |
| 1980 | 14.6 °C |
| 1983 | 14.4 °C |
| 1984 | 14.2 °C |
| 1985 | 12.5 °C |
| 1986 | 13.8 °C |
| 1987 | 15.6 °C |
| 1988 | 15.7 °C |
| 1989 | 14.4 °C |
| 1990 | 14.0 °C |
| 1992 | 12.1 °C |
| 1994 | 13.6 °C |
| 1995 | 13.9 °C |
| 1996 | 13.4 °C |
| 1997 | 13.3 °C |
| 1998 | 15.7 °C |
| 1999 | 14.7 °C |
| 2000 | 14.1 °C |
| 2001 | 15.2 °C |
| 2002 | 14.0 °C |
| 2003 | 15.4 °C |
| 2004 | 12.7 °C |
| 2005 | 14.9 °C |
| 2006 | 16.0 °C |
| 2007 | 14.5 °C |
| 2009 | 13.6 °C |
| 2010 | 15.2 °C |
| 2011 | 15.0 °C |
| 2012 | 15.4 °C |
| 2013 | 13.9 °C |
| 2014 | 13.7 °C |
| 2015 | 15.2 °C |
| 2017 | 14.6 °C |
| 2018 | 14.4 °C |
| 2019 | 14.3 °C |
| 2020 | 14.5 °C |
| 2021 | 15.7 °C |
| 2022 | 14.1 °C |
| 2023 | 14.5 °C |
What this means for you: Since 1972, Selkirk's last spring frost has come about 2 days earlier per decade, on average. The frost-free season has grown by about 4 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Stony Mountain (NOAA GHCN-Daily, from Environment and Climate Change Canada). Years with too many missing days are left out.