When to plant in Saint-Léonard-d'Aston, QC
Planting dates worked out from Saint-Léonard-d'Aston's own frost records, not a generic zone chart.
Safe to plant out
Jun 4
1 year in 10 has a later frost
Average last frost
May 20
about a 50% chance of a later one
Average first fall frost
Sep 21
1 year in 10 by Sep 10
Frost-free days
121
median, 1991–2020
Station used: St Wenceslas · 7.3 km away · station 84 m, town 73 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 9 – Apr 23 | Jun 4 – Jun 18 | Jul 29 |
| Sweet pepper | Mar 26 – Apr 9 | Jun 4 – Jun 18 | Aug 3 |
| Lettuce (leaf) | Mar 18 – Mar 25 | Apr 22 – May 6 | Jun 1 |
| Peas | — | Apr 21 – May 19 | Jun 15 |
| Bush beans | — | May 28 – Jun 18 | Jul 17 |
| Carrot | — | Apr 29 – Jun 10 | Jun 28 |
| Beet | — | Apr 27 – Jun 8 | Jun 16 |
| Potato | — | Apr 29 – May 20 | Jul 8 |
| Kale | Mar 17 – Mar 31 | Apr 28 – May 12 | Jun 10 |
| Broccoli | Mar 11 – Mar 25 | Apr 22 – May 13 | Jun 21 |
| Cucumber | May 7 – May 14 | Jun 4 – Jun 18 | Jul 24 |
| Summer squash and zucchini | May 7 – May 14 | Jun 4 – Jun 18 | Jul 19 |
| Winter squash | May 7 – May 14 | Jun 4 – Jun 18 | Aug 23 |
| Sweet corn | — | May 28 – Jun 18 | Jul 27 |
| Onion (from sets) | — | Apr 22 – May 13 | Jul 21 |
| Garlic | — | Sep 7 – Oct 5 (fall) | following summer |
| Spinach | — | Apr 21 – May 19 | May 29 |
| Basil | Apr 23 – May 7 | Jun 4 – Jun 18 | Jul 31 |
Saint-Léonard-d'Aston'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 | May 20 |
| 1982 | May 22 |
| 1983 | May 18 |
| 1984 | May 17 |
| 1985 | May 29 |
| 1986 | Jun 3 |
| 1987 | May 19 |
| 1988 | Jun 29 |
| 1989 | May 10 |
| 1990 | Jun 6 |
| 1991 | May 19 |
| 1992 | May 25 |
| 1993 | Apr 28 |
| 1994 | May 27 |
| 1995 | May 7 |
| 1996 | May 27 |
| 1997 | May 27 |
| 1998 | May 27 |
| 1999 | May 1 |
| 2000 | Jun 5 |
| 2001 | May 14 |
| 2002 | Jun 4 |
| 2003 | Jun 4 |
| 2004 | May 30 |
| 2005 | May 13 |
| 2006 | May 7 |
| 2007 | May 19 |
| 2008 | May 2 |
| 2009 | May 26 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1981 | 128 |
| 1982 | 97 |
| 1983 | 119 |
| 1984 | 122 |
| 1985 | 94 |
| 1986 | 103 |
| 1987 | 99 |
| 1988 | 78 |
| 1990 | 93 |
| 1991 | 116 |
| 1992 | 121 |
| 1993 | 144 |
| 1994 | 127 |
| 1995 | 126 |
| 1996 | 119 |
| 1997 | 117 |
| 1998 | 113 |
| 2000 | 92 |
| 2001 | 123 |
| 2002 | 121 |
| 2003 | 96 |
| 2004 | 112 |
| 2005 | 160 |
| 2006 | 127 |
| 2007 | 133 |
| 2008 | 139 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1981 | 14.4 °C |
| 1982 | 13.2 °C |
| 1983 | 14.6 °C |
| 1984 | 14.3 °C |
| 1985 | 13.4 °C |
| 1986 | 13.1 °C |
| 1987 | 14.0 °C |
| 1988 | 13.7 °C |
| 1989 | 13.3 °C |
| 1990 | 12.9 °C |
| 1991 | 14.2 °C |
| 1992 | 13.7 °C |
| 1993 | 14.6 °C |
| 1994 | 13.9 °C |
| 1995 | 14.3 °C |
| 1996 | 14.1 °C |
| 1997 | 13.1 °C |
| 1998 | 15.2 °C |
| 2000 | 13.1 °C |
| 2001 | 14.6 °C |
| 2002 | 14.4 °C |
| 2003 | 14.6 °C |
| 2004 | 14.0 °C |
| 2005 | 14.7 °C |
| 2006 | 14.6 °C |
| 2008 | 14.5 °C |
| 2009 | 14.2 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from St Wenceslas (NOAA GHCN-Daily, from Environment and Climate Change Canada). Years with too many missing days are left out.