When to plant in Osseo, MN
Planting dates worked out from Osseo's own frost records, not a generic zone chart.
Safe to plant out
May 15
1 year in 10 has a later frost
Average last frost
May 2
about a 50% chance of a later one
Average first fall frost
Oct 4
1 year in 10 by Sep 23
Frost-free days
155
median, 1991–2020
Station used: Minneapolis Crystal Ap · 7.5 km away · station 263 m, town 270 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 20 – Apr 3 | May 15 – May 29 | Jul 9 |
| Sweet pepper | Mar 6 – Mar 20 | May 15 – May 29 | Jul 14 |
| Lettuce (leaf) | Mar 3 – Mar 10 | Apr 7 – Apr 21 | May 17 |
| Peas | — | Apr 7 – May 5 | Jun 1 |
| Bush beans | — | May 8 – May 29 | Jun 27 |
| Carrot | — | Apr 16 – May 28 | Jun 15 |
| Beet | — | Apr 16 – May 28 | Jun 5 |
| Potato | — | Apr 16 – May 7 | Jun 25 |
| Kale | Mar 3 – Mar 17 | Apr 14 – Apr 28 | May 27 |
| Broccoli | Feb 24 – Mar 10 | Apr 7 – Apr 28 | Jun 6 |
| Cucumber | Apr 17 – Apr 24 | May 15 – May 29 | Jul 4 |
| Summer squash and zucchini | Apr 17 – Apr 24 | May 15 – May 29 | Jun 29 |
| Winter squash | Apr 17 – Apr 24 | May 15 – May 29 | Aug 3 |
| Sweet corn | — | May 8 – May 29 | Jul 7 |
| Onion (from sets) | — | Apr 7 – Apr 28 | Jul 6 |
| Garlic | — | Sep 20 – Oct 18 (fall) | following summer |
| Spinach | — | Apr 7 – May 5 | May 15 |
| Basil | Apr 3 – Apr 17 | May 15 – May 29 | Jul 11 |
Osseo'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 |
|---|---|
| 1998 | Apr 17 |
| 1999 | Apr 24 |
| 2000 | May 19 |
| 2001 | Apr 25 |
| 2002 | May 20 |
| 2003 | Apr 22 |
| 2004 | May 15 |
| 2005 | May 4 |
| 2006 | Apr 25 |
| 2007 | Apr 15 |
| 2008 | Apr 29 |
| 2009 | Apr 28 |
| 2010 | May 9 |
| 2011 | May 4 |
| 2012 | Apr 23 |
| 2013 | May 13 |
| 2014 | Apr 26 |
| 2015 | Apr 23 |
| 2016 | May 15 |
| 2017 | Apr 27 |
| 2018 | Apr 28 |
| 2019 | May 10 |
| 2020 | May 12 |
| 2021 | May 11 |
| 2022 | Apr 27 |
| 2023 | Apr 26 |
| 2024 | Apr 20 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1998 | 173 |
| 1999 | 160 |
| 2000 | 127 |
| 2001 | 152 |
| 2002 | 139 |
| 2003 | 160 |
| 2004 | 141 |
| 2005 | 155 |
| 2006 | 162 |
| 2007 | 152 |
| 2008 | 157 |
| 2009 | 163 |
| 2010 | 146 |
| 2011 | 133 |
| 2012 | 152 |
| 2013 | 158 |
| 2014 | 165 |
| 2015 | 175 |
| 2016 | 146 |
| 2017 | 165 |
| 2018 | 153 |
| 2019 | 159 |
| 2020 | 144 |
| 2021 | 158 |
| 2022 | 153 |
| 2023 | 183 |
| 2024 | 176 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1998 | 17.9 °C |
| 1999 | 17.2 °C |
| 2000 | 16.7 °C |
| 2001 | 17.2 °C |
| 2002 | 16.9 °C |
| 2003 | 17.0 °C |
| 2004 | 16.2 °C |
| 2005 | 18.1 °C |
| 2006 | 18.1 °C |
| 2007 | 17.6 °C |
| 2008 | 16.9 °C |
| 2009 | 16.8 °C |
| 2010 | 18.5 °C |
| 2011 | 17.6 °C |
| 2012 | 18.4 °C |
| 2013 | 17.0 °C |
| 2014 | 17.2 °C |
| 2015 | 18.3 °C |
| 2016 | 18.2 °C |
| 2017 | 17.3 °C |
| 2018 | 17.6 °C |
| 2019 | 17.0 °C |
| 2020 | 17.6 °C |
| 2021 | 18.6 °C |
| 2022 | 17.8 °C |
| 2023 | 18.8 °C |
| 2024 | 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 Minneapolis Crystal Ap (NOAA GHCN-Daily). Years with too many missing days are left out.