When to plant in Hermann, MO
Planting dates worked out from Hermann'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 24
about a 50% chance of a later one
Average first fall frost
Oct 13
1 year in 10 by Sep 27
Frost-free days
169
median, 1991–2020
Station used: Rosebud · 28.7 km away · station 222 m, town 162 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 20 – Feb 27 | Mar 27 – Apr 10 | May 6 |
| Peas | — | Mar 17 – Apr 14 | May 11 |
| Bush beans | — | May 5 – May 26 | Jun 24 |
| Carrot | — | Apr 3 – May 15 | Jun 2 |
| Beet | — | Mar 27 – May 8 | May 16 |
| Potato | — | Apr 3 – Apr 24 | Jun 12 |
| Kale | Feb 13 – Feb 27 | Mar 27 – Apr 10 | May 9 |
| Broccoli | Feb 13 – Feb 27 | Mar 27 – Apr 17 | May 26 |
| 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) | — | Mar 27 – Apr 17 | Jun 25 |
| Garlic | — | Sep 29 – Oct 27 (fall) | following summer |
| Spinach | — | Mar 17 – Apr 14 | Apr 24 |
| Basil | Mar 31 – Apr 14 | May 12 – May 26 | Jul 8 |
Hermann'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 |
|---|---|
| 1981 | Apr 6 |
| 1982 | Apr 23 |
| 1983 | May 16 |
| 1984 | Apr 23 |
| 1988 | Apr 17 |
| 1989 | May 6 |
| 1990 | May 11 |
| 1992 | Apr 3 |
| 1993 | Apr 3 |
| 1994 | Apr 8 |
| 1996 | Apr 10 |
| 1998 | Apr 20 |
| 1999 | Apr 18 |
| 2000 | Apr 27 |
| 2001 | Apr 19 |
| 2002 | May 18 |
| 2003 | Apr 23 |
| 2004 | Apr 16 |
| 2005 | May 5 |
| 2006 | Apr 10 |
| 2007 | Apr 15 |
| 2008 | May 4 |
| 2009 | Apr 15 |
| 2010 | Apr 20 |
| 2011 | May 5 |
| 2012 | Apr 23 |
| 2013 | May 14 |
| 2014 | May 18 |
| 2015 | May 2 |
| 2016 | Apr 14 |
| 2017 | Apr 25 |
| 2018 | Apr 30 |
| 2019 | Apr 20 |
| 2020 | May 11 |
| 2021 | May 14 |
| 2022 | Apr 27 |
| 2023 | May 5 |
| 2024 | Apr 23 |
| 2025 | Apr 16 |
| 2026 | Apr 19 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1981 | 179 |
| 1983 | 128 |
| 1988 | 170 |
| 1989 | 140 |
| 1990 | 135 |
| 1992 | 196 |
| 1994 | 199 |
| 1998 | 184 |
| 1999 | 169 |
| 2000 | 162 |
| 2001 | 158 |
| 2002 | 148 |
| 2003 | 158 |
| 2004 | 171 |
| 2005 | 173 |
| 2006 | 179 |
| 2007 | 195 |
| 2008 | 176 |
| 2009 | 177 |
| 2010 | 166 |
| 2011 | 149 |
| 2012 | 152 |
| 2013 | 160 |
| 2014 | 153 |
| 2015 | 167 |
| 2016 | 205 |
| 2017 | 186 |
| 2018 | 168 |
| 2019 | 174 |
| 2020 | 146 |
| 2021 | 170 |
| 2022 | 163 |
| 2023 | 177 |
| 2024 | 175 |
| 2025 | 189 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1981 | 19.6 °C |
| 1984 | 19.2 °C |
| 1989 | 19.3 °C |
| 1990 | 19.9 °C |
| 1992 | 19.3 °C |
| 1998 | 20.5 °C |
| 1999 | 19.6 °C |
| 2000 | 19.5 °C |
| 2001 | 20.1 °C |
| 2002 | 19.8 °C |
| 2003 | 18.9 °C |
| 2004 | 18.7 °C |
| 2005 | 20.3 °C |
| 2006 | 20.2 °C |
| 2007 | 20.3 °C |
| 2008 | 18.7 °C |
| 2009 | 18.6 °C |
| 2010 | 20.9 °C |
| 2011 | 20.2 °C |
| 2012 | 20.6 °C |
| 2013 | 18.9 °C |
| 2014 | 19.2 °C |
| 2015 | 20.1 °C |
| 2016 | 20.3 °C |
| 2017 | 19.6 °C |
| 2018 | 20.4 °C |
| 2019 | 20.3 °C |
| 2020 | 18.8 °C |
| 2021 | 19.2 °C |
| 2022 | 19.9 °C |
| 2023 | 20.2 °C |
| 2025 | 20.4 °C |
| 2026 | 21.5 °C |
What this means for you: Since 1981, Hermann's last spring frost has come about 2 days later per decade, on average. The frost-free season has grown by about 3 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Rosebud (NOAA GHCN-Daily). Years with too many missing days are left out.