When to plant in Sainte-Claire, QC
Planting dates worked out from Sainte-Claire's own frost records, not a generic zone chart.
Safe to plant out
Jun 3
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 28
1 year in 10 by Sep 13
Frost-free days
125
median, 1991–2020
Station used: Scott · 20.3 km away · station 145 m, town 212 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 8 – Apr 22 | Jun 3 – Jun 17 | Jul 28 |
| Sweet pepper | Mar 25 – Apr 8 | Jun 3 – Jun 17 | Aug 2 |
| Lettuce (leaf) | Mar 20 – Mar 27 | Apr 24 – May 8 | Jun 3 |
| Peas | — | Apr 24 – May 22 | Jun 18 |
| Bush beans | — | May 27 – Jun 17 | Jul 16 |
| Carrot | — | May 2 – Jun 13 | Jul 1 |
| Beet | — | May 2 – Jun 13 | Jun 21 |
| Potato | — | May 2 – May 23 | Jul 11 |
| Kale | Mar 20 – Apr 3 | May 1 – May 15 | Jun 13 |
| Broccoli | Mar 13 – Mar 27 | Apr 24 – May 15 | Jun 23 |
| Cucumber | May 6 – May 13 | Jun 3 – Jun 17 | Jul 23 |
| Summer squash and zucchini | May 6 – May 13 | Jun 3 – Jun 17 | Jul 18 |
| Winter squash | May 6 – May 13 | Jun 3 – Jun 17 | Aug 22 |
| Sweet corn | — | May 27 – Jun 17 | Jul 26 |
| Onion (from sets) | — | Apr 24 – May 15 | Jul 23 |
| Garlic | — | Sep 14 – Oct 12 (fall) | following summer |
| Spinach | — | Apr 24 – May 22 | Jun 1 |
| Basil | Apr 22 – May 6 | Jun 3 – Jun 17 | Jul 30 |
Sainte-Claire'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 |
|---|---|
| 1951 | Jun 8 |
| 1952 | May 28 |
| 1953 | Jun 12 |
| 1954 | May 29 |
| 1955 | May 17 |
| 1956 | Jun 19 |
| 1957 | Jun 6 |
| 1958 | Jun 7 |
| 1959 | May 18 |
| 1960 | May 3 |
| 1962 | Jun 7 |
| 1963 | Jun 11 |
| 1965 | Jun 3 |
| 1966 | May 14 |
| 1967 | Jun 19 |
| 1968 | Jun 10 |
| 1969 | May 14 |
| 1970 | May 15 |
| 1971 | Jun 6 |
| 1972 | May 26 |
| 1973 | May 8 |
| 1974 | May 20 |
| 1975 | May 9 |
| 1976 | May 8 |
| 1977 | May 15 |
| 1978 | May 7 |
| 1979 | May 7 |
| 1980 | May 29 |
| 1981 | May 24 |
| 1982 | May 22 |
| 1983 | May 18 |
| 1984 | May 19 |
| 1985 | May 29 |
| 1986 | Jun 6 |
| 1987 | May 20 |
| 1988 | May 15 |
| 1989 | May 10 |
| 1990 | Jun 6 |
| 1991 | May 23 |
| 1992 | May 26 |
| 1993 | May 18 |
| 1994 | May 27 |
| 1995 | May 10 |
| 1996 | May 27 |
| 1997 | May 27 |
| 1998 | Apr 28 |
| 1999 | May 14 |
| 2000 | Jun 5 |
| 2001 | May 14 |
| 2002 | Jun 4 |
| 2003 | Jun 4 |
| 2004 | May 10 |
| 2005 | May 14 |
| 2006 | May 7 |
| 2007 | May 22 |
| 2008 | May 30 |
| 2009 | May 26 |
| 2010 | May 21 |
| 2011 | May 9 |
| 2012 | May 12 |
| 2014 | May 8 |
| 2015 | May 23 |
| 2016 | May 16 |
| 2017 | Apr 25 |
| 2018 | May 18 |
| 2020 | Jun 2 |
| 2021 | May 30 |
| 2022 | May 9 |
| 2023 | May 22 |
| 2024 | May 10 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1951 | 110 |
| 1952 | 100 |
| 1953 | 103 |
| 1954 | 108 |
| 1955 | 114 |
| 1956 | 45 |
| 1957 | 94 |
| 1959 | 117 |
| 1960 | 135 |
| 1963 | 104 |
| 1966 | 129 |
| 1968 | 117 |
| 1970 | 121 |
| 1971 | 112 |
| 1972 | 116 |
| 1973 | 135 |
| 1974 | 120 |
| 1975 | 138 |
| 1976 | 139 |
| 1977 | 129 |
| 1978 | 108 |
| 1979 | 135 |
| 1980 | 117 |
| 1981 | 140 |
| 1982 | 140 |
| 1983 | 119 |
| 1984 | 125 |
| 1985 | 131 |
| 1986 | 106 |
| 1987 | 129 |
| 1988 | 123 |
| 1989 | 139 |
| 1990 | 93 |
| 1991 | 121 |
| 1992 | 120 |
| 1993 | 135 |
| 1994 | 113 |
| 1995 | 120 |
| 1996 | 117 |
| 1997 | 117 |
| 1998 | 160 |
| 1999 | 142 |
| 2000 | 92 |
| 2001 | 137 |
| 2002 | 116 |
| 2003 | 96 |
| 2004 | 147 |
| 2005 | 150 |
| 2006 | 151 |
| 2007 | 130 |
| 2008 | 110 |
| 2009 | 122 |
| 2012 | 138 |
| 2014 | 157 |
| 2017 | 169 |
| 2018 | 128 |
| 2020 | 107 |
| 2021 | 147 |
| 2023 | 160 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1951 | 12.8 °C |
| 1952 | 13.8 °C |
| 1953 | 13.2 °C |
| 1955 | 13.1 °C |
| 1956 | 11.1 °C |
| 1957 | 11.6 °C |
| 1959 | 13.7 °C |
| 1960 | 13.2 °C |
| 1961 | 13.0 °C |
| 1963 | 12.6 °C |
| 1968 | 13.8 °C |
| 1970 | 13.7 °C |
| 1971 | 13.2 °C |
| 1972 | 12.4 °C |
| 1973 | 13.9 °C |
| 1974 | 12.6 °C |
| 1976 | 13.7 °C |
| 1978 | 13.1 °C |
| 1979 | 14.1 °C |
| 1980 | 13.2 °C |
| 1981 | 13.6 °C |
| 1982 | 12.7 °C |
| 1983 | 14.2 °C |
| 1984 | 13.4 °C |
| 1985 | 12.9 °C |
| 1986 | 12.6 °C |
| 1987 | 14.0 °C |
| 1988 | 14.0 °C |
| 1989 | 14.2 °C |
| 1990 | 13.6 °C |
| 1991 | 14.1 °C |
| 1992 | 13.2 °C |
| 1993 | 13.9 °C |
| 1994 | 13.5 °C |
| 1995 | 13.8 °C |
| 1996 | 13.7 °C |
| 1997 | 12.9 °C |
| 1998 | 14.9 °C |
| 1999 | 15.4 °C |
| 2000 | 13.4 °C |
| 2001 | 14.1 °C |
| 2002 | 13.6 °C |
| 2003 | 13.2 °C |
| 2004 | 13.5 °C |
| 2005 | 14.5 °C |
| 2006 | 14.4 °C |
| 2007 | 13.1 °C |
| 2008 | 13.2 °C |
| 2009 | 14.1 °C |
| 2017 | 14.5 °C |
| 2018 | 14.7 °C |
| 2020 | 14.2 °C |
| 2021 | 15.2 °C |
| 2022 | 15.3 °C |
| 2023 | 14.9 °C |
What this means for you: Since 1951, Sainte-Claire's last spring frost has come about 2 days earlier per decade, on average. The frost-free season has grown by about 5 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Scott (NOAA GHCN-Daily, from Environment and Climate Change Canada). Years with too many missing days are left out.