When to plant in L'Ascension-de-Notre-Seigneur, QC
Planting dates worked out from L'Ascension-de-Notre-Seigneur's own frost records, not a generic zone chart.
Safe to plant out
Jun 17
1 year in 10 has a later frost
Average last frost
Jun 8
about a 50% chance of a later one
Average first fall frost
Sep 7
1 year in 10 by Aug 24
Frost-free days
92
median, 1991–2020
Station used: St Ambroise · 27.7 km away · station 122 m, town 139 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 22 – May 6 | Jun 17 – Jul 1 | Aug 11 |
| Sweet pepper | Apr 8 – Apr 22 | Jun 17 – Jul 1 | Aug 16 |
| Lettuce (leaf) | Apr 6 – Apr 13 | May 11 – May 25 | Jun 20 |
| Peas | — | May 1 – May 29 | Jun 25 |
| Bush beans | — | Jun 10 – Jul 1 | Jul 30 |
| Carrot | — | May 18 – Jun 29 | Jul 17 |
| Beet | — | May 11 – Jun 22 | Jun 30 |
| Potato | — | May 18 – Jun 8 | Jul 27 |
| Kale | Mar 30 – Apr 13 | May 11 – May 25 | Jun 23 |
| Broccoli | Mar 30 – Apr 13 | May 11 – Jun 1 | Jul 10 |
| Cucumber | May 20 – May 27 | Jun 17 – Jul 1 | Aug 6 |
| Summer squash and zucchini | May 20 – May 27 | Jun 17 – Jul 1 | Aug 1 |
| Winter squash Season likely too short |
May 20 – May 27 | Jun 17 – Jul 1 | Sep 5 |
| Sweet corn | — | Jun 10 – Jul 1 | Aug 9 |
| Onion (from sets) | — | May 11 – Jun 1 | Aug 9 |
| Garlic | — | Aug 24 – Sep 21 (fall) | following summer |
| Spinach | — | May 1 – May 29 | Jun 8 |
| Basil | May 6 – May 20 | Jun 17 – Jul 1 | Aug 13 |
L'Ascension-de-Notre-Seigneur'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 |
|---|---|
| 1955 | May 18 |
| 1956 | Jul 13 |
| 1957 | Jun 9 |
| 1958 | Jun 10 |
| 1959 | Jun 4 |
| 1960 | May 20 |
| 1961 | Jun 16 |
| 1962 | Jul 3 |
| 1963 | May 17 |
| 1964 | Jun 1 |
| 1965 | May 30 |
| 1966 | Jun 2 |
| 1967 | Jun 20 |
| 1968 | Jun 10 |
| 1970 | Jun 26 |
| 1971 | Jun 11 |
| 1972 | Jul 5 |
| 1973 | Jun 17 |
| 1975 | May 25 |
| 1976 | Jun 4 |
| 1977 | Jun 16 |
| 1978 | Jun 16 |
| 1979 | Jul 5 |
| 1980 | Jun 19 |
| 1981 | Jun 24 |
| 1982 | Jun 4 |
| 1983 | Jun 5 |
| 1984 | Jun 16 |
| 1985 | Jun 5 |
| 1986 | Jun 20 |
| 1987 | Jun 6 |
| 1988 | Jun 4 |
| 1989 | May 5 |
| 1990 | Jun 6 |
| 1991 | Jun 16 |
| 1992 | Jun 16 |
| 1993 | Jun 5 |
| 1994 | Jun 11 |
| 1995 | Jun 10 |
| 1996 | May 31 |
| 1997 | Jun 2 |
| 1998 | Jun 2 |
| 1999 | Jun 19 |
| 2000 | Jun 13 |
| 2002 | Jun 7 |
| 2003 | Jun 13 |
| 2004 | Jun 12 |
| 2005 | Jun 23 |
| 2006 | May 14 |
| 2007 | Jun 7 |
| 2008 | Jun 5 |
| 2009 | Jun 9 |
| 2010 | Jun 15 |
| 2011 | Jun 4 |
| 2012 | Jun 1 |
| 2013 | Jun 16 |
| 2014 | May 28 |
| 2015 | Jun 20 |
| 2016 | May 23 |
| 2017 | May 21 |
| 2018 | Jun 11 |
| 2020 | Jun 14 |
| 2021 | May 30 |
| 2022 | May 24 |
| 2023 | Jun 4 |
| 2024 | May 30 |
| 2025 | May 13 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1956 | 13 |
| 1957 | 72 |
| 1958 | 84 |
| 1959 | 99 |
| 1960 | 55 |
| 1961 | 92 |
| 1962 | 61 |
| 1963 | 97 |
| 1964 | 102 |
| 1965 | 92 |
| 1966 | 101 |
| 1967 | 73 |
| 1970 | 79 |
| 1971 | 75 |
| 1972 | 67 |
| 1973 | 91 |
| 1975 | 97 |
| 1976 | 54 |
| 1977 | 70 |
| 1978 | 68 |
| 1979 | 37 |
| 1980 | 76 |
| 1981 | 84 |
| 1982 | 60 |
| 1983 | 100 |
| 1984 | 65 |
| 1985 | 68 |
| 1986 | 71 |
| 1987 | 81 |
| 1988 | 103 |
| 1989 | 113 |
| 1990 | 74 |
| 1991 | 76 |
| 1992 | 87 |
| 1993 | 92 |
| 1994 | 72 |
| 1995 | 84 |
| 1996 | 113 |
| 1997 | 111 |
| 1998 | 107 |
| 1999 | 91 |
| 2000 | 75 |
| 2002 | 84 |
| 2003 | 72 |
| 2004 | 81 |
| 2005 | 56 |
| 2006 | 101 |
| 2007 | 74 |
| 2008 | 97 |
| 2009 | 88 |
| 2010 | 93 |
| 2011 | 104 |
| 2012 | 101 |
| 2013 | 80 |
| 2014 | 102 |
| 2015 | 96 |
| 2016 | 123 |
| 2017 | 104 |
| 2018 | 89 |
| 2020 | 95 |
| 2021 | 126 |
| 2022 | 115 |
| 2023 | 113 |
| 2024 | 103 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1956 | 8.8 °C |
| 1957 | 11.0 °C |
| 1958 | 10.9 °C |
| 1959 | 12.5 °C |
| 1960 | 11.7 °C |
| 1961 | 12.3 °C |
| 1962 | 11.8 °C |
| 1963 | 11.6 °C |
| 1964 | 11.3 °C |
| 1965 | 11.2 °C |
| 1966 | 11.5 °C |
| 1967 | 11.5 °C |
| 1968 | 12.1 °C |
| 1969 | 12.2 °C |
| 1970 | 12.1 °C |
| 1971 | 12.0 °C |
| 1972 | 11.5 °C |
| 1973 | 13.2 °C |
| 1975 | 12.7 °C |
| 1976 | 11.7 °C |
| 1977 | 11.3 °C |
| 1978 | 11.5 °C |
| 1979 | 12.1 °C |
| 1980 | 11.9 °C |
| 1981 | 12.4 °C |
| 1982 | 11.0 °C |
| 1983 | 12.4 °C |
| 1984 | 11.6 °C |
| 1985 | 10.5 °C |
| 1986 | 10.9 °C |
| 1987 | 11.9 °C |
| 1988 | 12.2 °C |
| 1989 | 12.1 °C |
| 1990 | 11.9 °C |
| 1991 | 11.9 °C |
| 1992 | 11.0 °C |
| 1993 | 12.4 °C |
| 1994 | 11.4 °C |
| 1995 | 11.8 °C |
| 1996 | 12.0 °C |
| 1997 | 11.2 °C |
| 1998 | 13.0 °C |
| 1999 | 13.7 °C |
| 2000 | 10.8 °C |
| 2002 | 11.9 °C |
| 2003 | 12.0 °C |
| 2004 | 11.3 °C |
| 2005 | 12.8 °C |
| 2006 | 12.7 °C |
| 2007 | 12.3 °C |
| 2008 | 12.2 °C |
| 2009 | 12.6 °C |
| 2010 | 13.8 °C |
| 2013 | 12.3 °C |
| 2014 | 12.8 °C |
| 2015 | 13.4 °C |
| 2016 | 12.0 °C |
| 2017 | 12.8 °C |
| 2018 | 12.3 °C |
| 2020 | 12.3 °C |
| 2021 | 13.6 °C |
| 2022 | 13.0 °C |
| 2023 | 13.6 °C |
| 2024 | 14.7 °C |
| 2025 | 12.8 °C |
What this means for you: Since 1955, L'Ascension-de-Notre-Seigneur's last spring frost has come about 1 day 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 St Ambroise (NOAA GHCN-Daily, from Environment and Climate Change Canada). Years with too many missing days are left out.