When to plant in Rivière-Rouge, QC
Planting dates worked out from Rivière-Rouge's own frost records, not a generic zone chart.
Safe to plant out
Jun 10
1 year in 10 has a later frost
Average last frost
May 29
about a 50% chance of a later one
Average first fall frost
Sep 14
1 year in 10 by Sep 3
Frost-free days
104
median, 1991–2020
Station used: La Macaza · 9.4 km away · station 244 m, town 240 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 15 – Apr 29 | Jun 10 – Jun 24 | Aug 4 |
| Sweet pepper | Apr 1 – Apr 15 | Jun 10 – Jun 24 | Aug 9 |
| Lettuce (leaf) | Mar 27 – Apr 3 | May 1 – May 15 | Jun 10 |
| Peas | — | Apr 24 – May 22 | Jun 18 |
| Bush beans | — | Jun 3 – Jun 24 | Jul 23 |
| Carrot | — | May 8 – Jun 19 | Jul 7 |
| Beet | — | May 2 – Jun 13 | Jun 21 |
| Potato | — | May 8 – May 29 | Jul 17 |
| Kale | Mar 20 – Apr 3 | May 1 – May 15 | Jun 13 |
| Broccoli | Mar 20 – Apr 3 | May 1 – May 22 | Jun 30 |
| Cucumber | May 13 – May 20 | Jun 10 – Jun 24 | Jul 30 |
| Summer squash and zucchini | May 13 – May 20 | Jun 10 – Jun 24 | Jul 25 |
| Winter squash | May 13 – May 20 | Jun 10 – Jun 24 | Aug 29 |
| Sweet corn | — | Jun 3 – Jun 24 | Aug 2 |
| Onion (from sets) | — | May 1 – May 22 | Jul 30 |
| Garlic | — | Aug 31 – Sep 28 (fall) | following summer |
| Spinach | — | Apr 24 – May 22 | Jun 1 |
| Basil | Apr 29 – May 13 | Jun 10 – Jun 24 | Aug 6 |
Rivière-Rouge'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 |
|---|---|
| 1977 | Jun 6 |
| 1978 | Jul 12 |
| 1979 | Jun 25 |
| 1980 | Jun 17 |
| 1981 | Jun 8 |
| 1982 | Jun 4 |
| 1983 | Jun 9 |
| 1984 | Jun 2 |
| 1985 | Jun 4 |
| 1986 | Jun 3 |
| 1987 | Jun 6 |
| 1988 | Jun 9 |
| 1989 | May 10 |
| 1990 | Jun 6 |
| 1991 | May 20 |
| 1992 | May 27 |
| 1993 | May 30 |
| 1994 | Jun 10 |
| 1995 | May 9 |
| 1996 | May 31 |
| 1997 | May 27 |
| 1998 | May 27 |
| 1999 | May 15 |
| 2000 | May 21 |
| 2001 | Jun 1 |
| 2002 | Jun 7 |
| 2003 | Jun 4 |
| 2004 | Jun 12 |
| 2005 | May 20 |
| 2006 | May 24 |
| 2007 | May 22 |
| 2008 | May 30 |
| 2009 | Jun 8 |
| 2010 | Jun 9 |
| 2017 | May 20 |
| 2018 | Jun 10 |
| 2020 | Jun 14 |
| 2021 | May 30 |
| 2022 | May 25 |
| 2023 | May 26 |
| 2024 | May 30 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1977 | 97 |
| 1978 | 62 |
| 1979 | 51 |
| 1980 | 82 |
| 1981 | 100 |
| 1982 | 77 |
| 1983 | 96 |
| 1984 | 110 |
| 1985 | 99 |
| 1986 | 85 |
| 1987 | 112 |
| 1988 | 98 |
| 1989 | 106 |
| 1990 | 93 |
| 1991 | 122 |
| 1996 | 114 |
| 1997 | 99 |
| 2001 | 105 |
| 2003 | 96 |
| 2005 | 132 |
| 2006 | 109 |
| 2007 | 116 |
| 2008 | 111 |
| 2009 | 79 |
| 2010 | 103 |
| 2017 | 103 |
| 2018 | 91 |
| 2020 | 92 |
| 2021 | 123 |
| 2022 | 121 |
| 2023 | 123 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1977 | 12.4 °C |
| 1978 | 12.0 °C |
| 1979 | 12.5 °C |
| 1980 | 12.2 °C |
| 1981 | 12.7 °C |
| 1982 | 11.9 °C |
| 1983 | 13.0 °C |
| 1984 | 13.0 °C |
| 1985 | 12.4 °C |
| 1986 | 12.7 °C |
| 1987 | 13.6 °C |
| 1988 | 13.5 °C |
| 1989 | 13.1 °C |
| 1990 | 13.0 °C |
| 1991 | 13.5 °C |
| 1992 | 12.5 °C |
| 1993 | 13.7 °C |
| 1994 | 13.3 °C |
| 1995 | 13.3 °C |
| 1996 | 13.7 °C |
| 1997 | 12.6 °C |
| 1998 | 15.0 °C |
| 1999 | 14.7 °C |
| 2000 | 12.7 °C |
| 2001 | 14.3 °C |
| 2002 | 13.3 °C |
| 2003 | 14.1 °C |
| 2004 | 13.3 °C |
| 2005 | 14.8 °C |
| 2006 | 14.1 °C |
| 2007 | 13.5 °C |
| 2008 | 13.9 °C |
| 2009 | 13.2 °C |
| 2017 | 14.2 °C |
| 2018 | 14.2 °C |
| 2020 | 13.7 °C |
| 2021 | 15.0 °C |
| 2022 | 14.2 °C |
| 2023 | 14.7 °C |
What this means for you: Since 1977, Rivière-Rouge's last spring frost has come about 3 days earlier per decade, on average. The frost-free season has grown by about 6 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from La Macaza (NOAA GHCN-Daily, from Environment and Climate Change Canada). Years with too many missing days are left out.