When to plant in Monroe, MI
Planting dates worked out from Monroe's own frost records, not a generic zone chart.
Safe to plant out
May 12
1 year in 10 has a later frost
Average last frost
Apr 26
about a 50% chance of a later one
Average first fall frost
Oct 22
1 year in 10 by Oct 13
Frost-free days
174
median, 1991–2020
Station used: Newport 4sse · 10.4 km away · station 176 m, town 182 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 17 – Mar 31 | May 12 – May 26 | Jul 6 |
| Sweet pepper | Mar 3 – Mar 17 | May 12 – May 26 | Jul 11 |
| Lettuce (leaf) | Feb 28 – Mar 7 | Apr 4 – Apr 18 | May 14 |
| Peas | — | Apr 4 – May 2 | May 29 |
| Bush beans | — | May 5 – May 26 | Jun 24 |
| Carrot | — | Apr 13 – May 25 | Jun 12 |
| Beet | — | Apr 13 – May 25 | Jun 2 |
| Potato | — | Apr 13 – May 4 | Jun 22 |
| Kale | Feb 28 – Mar 14 | Apr 11 – Apr 25 | May 24 |
| Broccoli | Feb 21 – Mar 7 | Apr 4 – Apr 25 | Jun 3 |
| Cucumber | Apr 14 – Apr 21 | May 12 – May 26 | Jul 1 |
| Summer squash and zucchini | Apr 14 – Apr 21 | May 12 – May 26 | Jun 26 |
| Winter squash | Apr 14 – Apr 21 | May 12 – May 26 | Jul 31 |
| Sweet corn | — | May 5 – May 26 | Jul 4 |
| Onion (from sets) | — | Apr 4 – Apr 25 | Jul 3 |
| Garlic | — | Oct 8 – Nov 5 (fall) | following summer |
| Spinach | — | Apr 4 – May 2 | May 12 |
| Basil | Mar 31 – Apr 14 | May 12 – May 26 | Jul 8 |
Monroe'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 |
|---|---|
| 2006 | Apr 28 |
| 2007 | Apr 16 |
| 2008 | May 1 |
| 2009 | Apr 13 |
| 2010 | May 10 |
| 2011 | Apr 14 |
| 2012 | Apr 30 |
| 2013 | May 14 |
| 2014 | Apr 17 |
| 2015 | Apr 29 |
| 2016 | Apr 13 |
| 2017 | May 10 |
| 2018 | Apr 30 |
| 2019 | Apr 2 |
| 2020 | May 13 |
| 2021 | Apr 23 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 2006 | 169 |
| 2007 | 195 |
| 2008 | 173 |
| 2009 | 180 |
| 2010 | 174 |
| 2011 | 190 |
| 2012 | 186 |
| 2013 | 161 |
| 2014 | 184 |
| 2015 | 170 |
| 2016 | 195 |
| 2017 | 168 |
| 2018 | 168 |
| 2019 | 217 |
| 2020 | 129 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 2006 | 17.9 °C |
| 2007 | 17.9 °C |
| 2008 | 17.7 °C |
| 2009 | 17.3 °C |
| 2010 | 19.5 °C |
| 2011 | 18.6 °C |
| 2012 | 18.8 °C |
| 2013 | 18.0 °C |
| 2014 | 17.7 °C |
| 2015 | 18.2 °C |
| 2016 | 18.7 °C |
| 2017 | 17.8 °C |
| 2018 | 18.1 °C |
| 2019 | 17.9 °C |
| 2020 | 17.2 °C |
| 2021 | 18.4 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from Newport 4sse (NOAA GHCN-Daily). Years with too many missing days are left out.