When to plant in Hudson, QC
Planting dates worked out from Hudson's own frost records, not a generic zone chart.
Safe to plant out
May 26
1 year in 10 has a later frost
Average last frost
May 13
about a 50% chance of a later one
Average first fall frost
Sep 28
1 year in 10 by Sep 14
Frost-free days
138
median, 1991–2020
Station used: Oka · 8.5 km away · station 91 m, town 47 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 31 – Apr 14 | May 26 – Jun 9 | Jul 20 |
| Sweet pepper | Mar 17 – Mar 31 | May 26 – Jun 9 | Jul 25 |
| Lettuce (leaf) | Mar 14 – Mar 21 | Apr 18 – May 2 | May 28 |
| Peas | — | Apr 18 – May 16 | Jun 12 |
| Bush beans | — | May 19 – Jun 9 | Jul 8 |
| Carrot | — | Apr 24 – Jun 5 | Jun 23 |
| Beet | — | Apr 24 – Jun 5 | Jun 13 |
| Potato | — | Apr 24 – May 15 | Jul 3 |
| Kale | Mar 14 – Mar 28 | Apr 25 – May 9 | Jun 7 |
| Broccoli | Mar 7 – Mar 21 | Apr 18 – May 9 | Jun 17 |
| Cucumber | Apr 28 – May 5 | May 26 – Jun 9 | Jul 15 |
| Summer squash and zucchini | Apr 28 – May 5 | May 26 – Jun 9 | Jul 10 |
| Winter squash | Apr 28 – May 5 | May 26 – Jun 9 | Aug 14 |
| Sweet corn | — | May 19 – Jun 9 | Jul 18 |
| Onion (from sets) | — | Apr 18 – May 9 | Jul 17 |
| Garlic | — | Sep 14 – Oct 12 (fall) | following summer |
| Spinach | — | Apr 18 – May 16 | May 26 |
| Basil | Apr 14 – Apr 28 | May 26 – Jun 9 | Jul 22 |
Hudson'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 |
|---|---|
| 1939 | May 18 |
| 1940 | May 12 |
| 1941 | Apr 23 |
| 1942 | Apr 13 |
| 1943 | May 1 |
| 1944 | May 18 |
| 1945 | Jun 3 |
| 1946 | May 4 |
| 1947 | May 14 |
| 1948 | Apr 27 |
| 1949 | May 13 |
| 1953 | May 3 |
| 1954 | May 27 |
| 1955 | May 17 |
| 1956 | May 25 |
| 1957 | May 17 |
| 1958 | May 10 |
| 1959 | May 17 |
| 1960 | Apr 26 |
| 1961 | May 31 |
| 1962 | May 9 |
| 1963 | May 11 |
| 1964 | May 21 |
| 1965 | May 5 |
| 1966 | May 11 |
| 1967 | May 23 |
| 1968 | May 7 |
| 1969 | May 27 |
| 1970 | May 29 |
| 1971 | May 24 |
| 1972 | May 13 |
| 1973 | Jun 2 |
| 1974 | May 20 |
| 1975 | Apr 28 |
| 1976 | May 8 |
| 1977 | May 29 |
| 1978 | May 11 |
| 1979 | May 7 |
| 1980 | May 17 |
| 1981 | May 20 |
| 1982 | May 5 |
| 1983 | Jun 9 |
| 1984 | May 18 |
| 1985 | May 9 |
| 1986 | Jun 3 |
| 1987 | May 19 |
| 1988 | Jun 9 |
| 1989 | Apr 29 |
| 1990 | May 6 |
| 1991 | May 19 |
| 1992 | May 19 |
| 1993 | May 23 |
| 1994 | May 13 |
| 1995 | May 8 |
| 1996 | May 29 |
| 1997 | May 27 |
| 1998 | Apr 27 |
| 1999 | May 14 |
| 2000 | Jun 5 |
| 2001 | May 15 |
| 2002 | May 25 |
| 2003 | May 4 |
| 2004 | May 8 |
| 2005 | May 13 |
| 2006 | May 8 |
| 2007 | May 13 |
| 2008 | May 7 |
| 2009 | May 11 |
| 2011 | Apr 22 |
| 2015 | May 23 |
| 2016 | Apr 29 |
| 2018 | Apr 22 |
| 2020 | May 13 |
| 2021 | May 1 |
| 2022 | Apr 29 |
| 2023 | May 18 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1939 | 131 |
| 1940 | 156 |
| 1941 | 158 |
| 1942 | 168 |
| 1943 | 146 |
| 1944 | 137 |
| 1945 | 118 |
| 1946 | 166 |
| 1947 | 131 |
| 1948 | 174 |
| 1953 | 157 |
| 1954 | 132 |
| 1955 | 137 |
| 1956 | 118 |
| 1957 | 155 |
| 1958 | 144 |
| 1959 | 121 |
| 1960 | 158 |
| 1961 | 126 |
| 1962 | 157 |
| 1963 | 142 |
| 1964 | 130 |
| 1965 | 144 |
| 1966 | 138 |
| 1967 | 136 |
| 1968 | 151 |
| 1969 | 114 |
| 1970 | 129 |
| 1971 | 92 |
| 1972 | 132 |
| 1973 | 106 |
| 1974 | 120 |
| 1975 | 157 |
| 1976 | 114 |
| 1977 | 105 |
| 1978 | 121 |
| 1979 | 135 |
| 1980 | 129 |
| 1981 | 133 |
| 1982 | 150 |
| 1983 | 97 |
| 1984 | 126 |
| 1985 | 146 |
| 1986 | 105 |
| 1987 | 130 |
| 1988 | 98 |
| 1989 | 150 |
| 1991 | 123 |
| 1992 | 115 |
| 1993 | 119 |
| 1994 | 140 |
| 1995 | 122 |
| 1996 | 117 |
| 1997 | 119 |
| 1998 | 149 |
| 1999 | 143 |
| 2000 | 111 |
| 2001 | 122 |
| 2002 | 133 |
| 2003 | 155 |
| 2004 | 149 |
| 2005 | 160 |
| 2006 | 150 |
| 2007 | 156 |
| 2008 | 138 |
| 2011 | 166 |
| 2021 | 174 |
| 2023 | 164 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1939 | 14.9 °C |
| 1940 | 14.7 °C |
| 1941 | 16.1 °C |
| 1942 | 16.1 °C |
| 1943 | 14.4 °C |
| 1944 | 16.1 °C |
| 1945 | 15.6 °C |
| 1946 | 15.3 °C |
| 1947 | 14.9 °C |
| 1948 | 15.8 °C |
| 1953 | 15.4 °C |
| 1954 | 13.8 °C |
| 1955 | 16.5 °C |
| 1956 | 13.4 °C |
| 1957 | 15.4 °C |
| 1958 | 13.9 °C |
| 1959 | 16.3 °C |
| 1960 | 15.5 °C |
| 1961 | 15.0 °C |
| 1962 | 14.8 °C |
| 1963 | 14.4 °C |
| 1964 | 14.7 °C |
| 1965 | 14.8 °C |
| 1966 | 14.6 °C |
| 1967 | 14.8 °C |
| 1968 | 14.8 °C |
| 1969 | 13.8 °C |
| 1970 | 14.7 °C |
| 1971 | 14.0 °C |
| 1972 | 13.8 °C |
| 1973 | 14.8 °C |
| 1974 | 13.5 °C |
| 1975 | 14.7 °C |
| 1976 | 14.2 °C |
| 1977 | 14.4 °C |
| 1978 | 14.2 °C |
| 1979 | 14.6 °C |
| 1980 | 14.5 °C |
| 1981 | 13.9 °C |
| 1982 | 13.9 °C |
| 1983 | 14.9 °C |
| 1984 | 14.8 °C |
| 1985 | 14.2 °C |
| 1986 | 14.1 °C |
| 1987 | 15.2 °C |
| 1988 | 15.0 °C |
| 1989 | 14.9 °C |
| 1991 | 15.4 °C |
| 1992 | 13.8 °C |
| 1993 | 14.9 °C |
| 1994 | 14.7 °C |
| 1995 | 14.8 °C |
| 1996 | 14.9 °C |
| 1997 | 14.2 °C |
| 1998 | 16.1 °C |
| 1999 | 16.3 °C |
| 2000 | 14.0 °C |
| 2001 | 15.9 °C |
| 2002 | 15.6 °C |
| 2003 | 15.0 °C |
| 2004 | 14.5 °C |
| 2006 | 15.2 °C |
| 2008 | 15.4 °C |
| 2009 | 14.8 °C |
| 2018 | 15.4 °C |
| 2020 | 15.6 °C |
| 2021 | 16.6 °C |
| 2023 | 15.8 °C |
What this means for you: Since 1939, Hudson's last spring frost has stayed at about the same time of year. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Oka (NOAA GHCN-Daily, from Environment and Climate Change Canada). Years with too many missing days are left out.