When to plant in Saint-Antoine-de-Tilly, QC
Planting dates worked out from Saint-Antoine-de-Tilly's own frost records, not a generic zone chart.
Safe to plant out
May 22
1 year in 10 has a later frost
Average last frost
May 12
about a 50% chance of a later one
Average first fall frost
Oct 3
1 year in 10 by Sep 22
Frost-free days
142
median, 1991–2020
Station used: Donnacona 2 · 12.4 km away · station 46 m, town 49 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 | Mar 27 – Apr 10 | May 22 – Jun 5 | Jul 16 |
| Sweet pepper | Mar 13 – Mar 27 | May 22 – Jun 5 | Jul 21 |
| Lettuce (leaf) | Mar 18 – Mar 25 | Apr 22 – May 6 | Jun 1 |
| Peas | — | Apr 22 – May 20 | Jun 16 |
| Bush beans | — | May 15 – Jun 5 | Jul 4 |
| Carrot | — | Apr 29 – Jun 10 | Jun 28 |
| Beet | — | Apr 29 – Jun 10 | Jun 18 |
| Potato | — | Apr 29 – May 20 | Jul 8 |
| Kale | Mar 18 – Apr 1 | Apr 29 – May 13 | Jun 11 |
| Broccoli | Mar 11 – Mar 25 | Apr 22 – May 13 | Jun 21 |
| Cucumber | Apr 24 – May 1 | May 22 – Jun 5 | Jul 11 |
| Summer squash and zucchini | Apr 24 – May 1 | May 22 – Jun 5 | Jul 6 |
| Winter squash | Apr 24 – May 1 | May 22 – Jun 5 | Aug 10 |
| Sweet corn | — | May 15 – Jun 5 | Jul 14 |
| Onion (from sets) | — | Apr 22 – May 13 | Jul 21 |
| Garlic | — | Sep 19 – Oct 17 (fall) | following summer |
| Spinach | — | Apr 22 – May 20 | May 30 |
| Basil | Apr 10 – Apr 24 | May 22 – Jun 5 | Jul 18 |
Saint-Antoine-de-Tilly'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 |
|---|---|
| 1953 | May 3 |
| 1954 | May 13 |
| 1955 | May 17 |
| 1956 | May 26 |
| 1957 | May 19 |
| 1958 | Jun 7 |
| 1959 | May 9 |
| 1960 | Apr 30 |
| 1961 | May 30 |
| 1962 | May 11 |
| 1963 | May 13 |
| 1964 | May 21 |
| 1965 | Jun 3 |
| 1966 | May 14 |
| 1967 | May 30 |
| 1968 | May 11 |
| 1969 | May 27 |
| 1970 | May 4 |
| 1971 | May 15 |
| 1972 | May 13 |
| 1973 | May 7 |
| 1974 | May 6 |
| 1975 | May 11 |
| 1976 | May 10 |
| 1977 | May 9 |
| 1978 | May 8 |
| 1979 | May 7 |
| 1980 | May 6 |
| 1981 | May 20 |
| 1982 | Jun 4 |
| 1983 | May 19 |
| 1984 | May 17 |
| 1985 | May 15 |
| 1988 | May 15 |
| 1991 | May 19 |
| 1992 | May 19 |
| 1993 | Apr 28 |
| 1994 | May 15 |
| 1995 | May 7 |
| 1996 | May 26 |
| 1997 | May 12 |
| 1999 | May 12 |
| 2000 | May 20 |
| 2001 | May 7 |
| 2002 | May 25 |
| 2003 | May 4 |
| 2004 | May 9 |
| 2005 | May 14 |
| 2006 | May 1 |
| 2007 | May 14 |
| 2008 | May 2 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1953 | 143 |
| 1954 | 145 |
| 1955 | 119 |
| 1956 | 122 |
| 1957 | 145 |
| 1958 | 120 |
| 1959 | 128 |
| 1960 | 154 |
| 1961 | 109 |
| 1962 | 133 |
| 1963 | 123 |
| 1964 | 114 |
| 1965 | 115 |
| 1966 | 135 |
| 1967 | 118 |
| 1968 | 147 |
| 1969 | 115 |
| 1970 | 154 |
| 1971 | 134 |
| 1972 | 137 |
| 1973 | 136 |
| 1974 | 139 |
| 1975 | 144 |
| 1976 | 137 |
| 1977 | 151 |
| 1978 | 132 |
| 1979 | 138 |
| 1980 | 140 |
| 1981 | 143 |
| 1982 | 127 |
| 1983 | 117 |
| 1984 | 127 |
| 1985 | 145 |
| 1988 | 144 |
| 1991 | 125 |
| 1992 | 127 |
| 1993 | 154 |
| 1994 | 139 |
| 1995 | 131 |
| 1996 | 130 |
| 1997 | 132 |
| 1999 | 145 |
| 2000 | 128 |
| 2001 | 154 |
| 2002 | 136 |
| 2003 | 168 |
| 2004 | 148 |
| 2005 | 159 |
| 2006 | 157 |
| 2007 | 155 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1953 | 13.9 °C |
| 1954 | 12.6 °C |
| 1955 | 13.9 °C |
| 1956 | 11.4 °C |
| 1957 | 12.9 °C |
| 1958 | 12.5 °C |
| 1959 | 14.4 °C |
| 1960 | 13.7 °C |
| 1961 | 13.6 °C |
| 1962 | 13.1 °C |
| 1963 | 13.0 °C |
| 1964 | 13.3 °C |
| 1965 | 12.9 °C |
| 1966 | 13.4 °C |
| 1967 | 13.1 °C |
| 1968 | 13.5 °C |
| 1969 | 13.3 °C |
| 1973 | 14.1 °C |
| 1975 | 14.0 °C |
| 1976 | 13.3 °C |
| 1977 | 13.6 °C |
| 1978 | 13.7 °C |
| 1979 | 14.3 °C |
| 1980 | 13.8 °C |
| 1981 | 14.1 °C |
| 1982 | 13.1 °C |
| 1983 | 14.3 °C |
| 1984 | 13.4 °C |
| 1985 | 13.4 °C |
| 1986 | 13.3 °C |
| 1987 | 14.9 °C |
| 1988 | 14.2 °C |
| 1989 | 14.2 °C |
| 1990 | 14.0 °C |
| 1991 | 14.4 °C |
| 1992 | 13.5 °C |
| 1993 | 14.2 °C |
| 1994 | 13.6 °C |
| 1995 | 14.1 °C |
| 1996 | 14.2 °C |
| 1997 | 13.3 °C |
| 1998 | 15.3 °C |
| 1999 | 15.8 °C |
| 2000 | 13.6 °C |
| 2001 | 15.2 °C |
| 2002 | 14.7 °C |
| 2003 | 14.3 °C |
| 2004 | 14.2 °C |
| 2005 | 15.2 °C |
| 2006 | 15.1 °C |
| 2007 | 14.3 °C |
What this means for you: Since 1953, Saint-Antoine-de-Tilly's last spring frost has come about 1 day 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 Donnacona 2 (NOAA GHCN-Daily, from Environment and Climate Change Canada). Years with too many missing days are left out.