When to plant in Dunham, QC
Planting dates worked out from Dunham's own frost records, not a generic zone chart.
Safe to plant out
May 14
1 year in 10 has a later frost
Average last frost
May 6
about a 50% chance of a later one
Average first fall frost
Oct 8
1 year in 10 by Sep 26
Frost-free days
152
median, 1991–2020
Station used: Frelighsburg · 11.8 km away · station 224 m, town 154 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 19 – Apr 2 | May 14 – May 28 | Jul 8 |
| Sweet pepper | Mar 5 – Mar 19 | May 14 – May 28 | Jul 13 |
| Lettuce (leaf) | Mar 12 – Mar 19 | Apr 16 – Apr 30 | May 26 |
| Peas | — | Apr 16 – May 14 | Jun 10 |
| Bush beans | — | May 8 – May 29 | Jun 27 |
| Carrot | — | Apr 24 – Jun 5 | Jun 23 |
| Beet | — | Apr 24 – Jun 5 | Jun 13 |
| Potato | — | Apr 24 – May 15 | Jul 3 |
| Kale | Mar 12 – Mar 26 | Apr 23 – May 7 | Jun 5 |
| Broccoli | Mar 5 – Mar 19 | Apr 16 – May 7 | Jun 15 |
| Cucumber | Apr 16 – Apr 23 | May 14 – May 28 | Jul 3 |
| Summer squash and zucchini | Apr 16 – Apr 23 | May 14 – May 28 | Jun 28 |
| Winter squash | Apr 16 – Apr 23 | May 14 – May 28 | Aug 2 |
| Sweet corn | — | May 8 – May 29 | Jul 7 |
| Onion (from sets) | — | Apr 16 – May 7 | Jul 15 |
| Garlic | — | Sep 24 – Oct 22 (fall) | following summer |
| Spinach | — | Apr 16 – May 14 | May 24 |
| Basil | Apr 2 – Apr 16 | May 14 – May 28 | Jul 10 |
Dunham'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 |
|---|---|
| 1995 | May 7 |
| 1997 | May 5 |
| 1998 | Apr 27 |
| 1999 | May 14 |
| 2001 | May 6 |
| 2002 | May 25 |
| 2003 | May 4 |
| 2004 | May 8 |
| 2005 | May 13 |
| 2006 | May 7 |
| 2007 | May 6 |
| 2008 | Apr 30 |
| 2009 | Apr 30 |
| 2010 | May 13 |
| 2011 | Apr 22 |
| 2012 | May 7 |
| 2014 | Apr 25 |
| 2015 | May 23 |
| 2016 | May 9 |
| 2017 | Apr 30 |
| 2018 | Apr 22 |
| 2019 | May 8 |
| 2020 | May 13 |
| 2021 | Apr 27 |
| 2022 | Apr 29 |
| 2023 | May 18 |
| 2024 | Apr 26 |
| 2025 | Apr 27 |
| 2026 | Apr 25 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1995 | 144 |
| 1997 | 141 |
| 2001 | 154 |
| 2002 | 135 |
| 2003 | 154 |
| 2004 | 149 |
| 2005 | 159 |
| 2006 | 152 |
| 2007 | 162 |
| 2008 | 145 |
| 2009 | 164 |
| 2010 | 148 |
| 2011 | 166 |
| 2012 | 157 |
| 2014 | 146 |
| 2015 | 146 |
| 2016 | 165 |
| 2017 | 169 |
| 2018 | 178 |
| 2019 | 149 |
| 2020 | 147 |
| 2021 | 189 |
| 2022 | 181 |
| 2023 | 164 |
| 2025 | 164 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1995 | 15.0 °C |
| 1996 | 15.8 °C |
| 1997 | 13.9 °C |
| 1998 | 16.2 °C |
| 2000 | 14.6 °C |
| 2001 | 15.7 °C |
| 2002 | 15.2 °C |
| 2003 | 15.2 °C |
| 2004 | 14.5 °C |
| 2005 | 15.9 °C |
| 2006 | 15.5 °C |
| 2007 | 14.8 °C |
| 2008 | 15.3 °C |
| 2009 | 14.9 °C |
| 2010 | 16.2 °C |
| 2011 | 16.0 °C |
| 2012 | 16.0 °C |
| 2014 | 15.1 °C |
| 2015 | 15.9 °C |
| 2016 | 15.4 °C |
| 2017 | 15.2 °C |
| 2018 | 15.7 °C |
| 2019 | 14.8 °C |
| 2020 | 15.3 °C |
| 2021 | 16.4 °C |
| 2022 | 15.6 °C |
| 2023 | 15.9 °C |
| 2024 | 16.1 °C |
| 2025 | 15.8 °C |
| 2026 | 15.6 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from Frelighsburg (NOAA GHCN-Daily, from Environment and Climate Change Canada). Years with too many missing days are left out.