When to plant in Shell Valley, ND
Planting dates worked out from Shell Valley's own frost records, not a generic zone chart.
Safe to plant out
Jun 3
1 year in 10 has a later frost
Average last frost
May 20
about a 50% chance of a later one
Average first fall frost
Sep 19
1 year in 10 by Sep 8
Frost-free days
126
median, 1991–2020
Station used: Rolette 3se · 19.2 km away · station 494 m, town 539 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 8 – Apr 22 | Jun 3 – Jun 17 | Jul 28 |
| Sweet pepper | Mar 25 – Apr 8 | Jun 3 – Jun 17 | Aug 2 |
| Lettuce (leaf) | Mar 21 – Mar 28 | Apr 25 – May 9 | Jun 4 |
| Peas | — | Apr 25 – May 23 | Jun 19 |
| Bush beans | — | May 27 – Jun 17 | Jul 16 |
| Carrot | — | May 4 – Jun 15 | Jul 3 |
| Beet | — | May 4 – Jun 15 | Jun 23 |
| Potato | — | May 4 – May 25 | Jul 13 |
| Kale | Mar 21 – Apr 4 | May 2 – May 16 | Jun 14 |
| Broccoli | Mar 14 – Mar 28 | Apr 25 – May 16 | Jun 24 |
| Cucumber | May 6 – May 13 | Jun 3 – Jun 17 | Jul 23 |
| Summer squash and zucchini | May 6 – May 13 | Jun 3 – Jun 17 | Jul 18 |
| Winter squash | May 6 – May 13 | Jun 3 – Jun 17 | Aug 22 |
| Sweet corn | — | May 27 – Jun 17 | Jul 26 |
| Onion (from sets) | — | Apr 25 – May 16 | Jul 24 |
| Garlic | — | Sep 5 – Oct 3 (fall) | following summer |
| Spinach | — | Apr 25 – May 23 | Jun 2 |
| Basil | Apr 22 – May 6 | Jun 3 – Jun 17 | Jul 30 |
Shell Valley'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 |
|---|---|
| 2000 | Jun 2 |
| 2004 | Jun 7 |
| 2005 | May 15 |
| 2006 | May 12 |
| 2007 | May 27 |
| 2008 | May 27 |
| 2009 | Jun 5 |
| 2010 | May 10 |
| 2011 | May 3 |
| 2013 | May 13 |
| 2014 | May 17 |
| 2015 | May 30 |
| 2016 | May 17 |
| 2017 | May 19 |
| 2018 | May 11 |
| 2020 | May 16 |
| 2021 | May 28 |
| 2022 | Jun 3 |
| 2024 | May 25 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 2004 | 73 |
| 2005 | 142 |
| 2006 | 118 |
| 2007 | 109 |
| 2008 | 126 |
| 2010 | 130 |
| 2013 | 130 |
| 2014 | 120 |
| 2015 | 103 |
| 2016 | 133 |
| 2017 | 132 |
| 2018 | 136 |
| 2020 | 114 |
| 2021 | 115 |
| 2022 | 110 |
| 2024 | 128 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 2002 | 12.6 °C |
| 2003 | 15.6 °C |
| 2005 | 14.7 °C |
| 2006 | 15.8 °C |
| 2007 | 15.0 °C |
| 2008 | 13.4 °C |
| 2010 | 13.4 °C |
| 2013 | 12.2 °C |
| 2014 | 12.5 °C |
| 2015 | 13.7 °C |
| 2016 | 13.7 °C |
| 2017 | 13.6 °C |
| 2018 | 13.2 °C |
| 2019 | 13.2 °C |
| 2020 | 13.2 °C |
| 2021 | 14.1 °C |
| 2022 | 12.8 °C |
| 2024 | 14.1 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from Rolette 3se (NOAA GHCN-Daily). Years with too many missing days are left out.