Frost dates for Smithton, MO
When the last spring frost and first fall frost usually come, and when to plant, from 30 years of NOAA weather records.
Last spring frost
April 10
typical year
Safe to plant
April 26
frost is over in 9 of 10 years
First fall frost
October 26
typical year
Growing season
197 days
frost-free, typical year
Frost watch this week
Tonight's and the next six nights' lows from the National Weather Service forecast for the station's location. Frost: 32°F or colder. Possible frost: 33–36°F, mostly in low spots on clear, still nights.
When to plant
Counted from this page's frost dates. Warm-season crops wait for the safe-to-plant date.
| Crop | Start indoors | Plant outside | Fall planting |
|---|---|---|---|
| Cool-season crops | |||
| Peas | – | Mar 13 – 27 | – |
| Spinach | – | Feb 27 – Mar 20 | Aug 31 – Sep 14 |
| Lettuce | – | Mar 13 – Apr 3 | Aug 31 – Sep 14 |
| Radishes | – | Mar 13 – Apr 24 | Sep 14 – 28 |
| Onions | – | Mar 13 – 27 | – |
| Potatoes | – | Mar 20 – Apr 3 | – |
| Carrots | – | Mar 20 – Apr 10 | Aug 3 – 17 |
| Beets | – | Mar 13 – 27 | Aug 17 – 31 |
| Kale | Jan 30 – Feb 13 | Mar 13 – 27 | Aug 17 – 31 |
| Broccoli | Jan 30 – Feb 13 | Mar 27 – Apr 10 | Aug 17 – 31 |
| Cabbage | Jan 16 – 30 | Mar 13 – 27 | Aug 17 – 31 |
| Garlic | – | – | Sep 14 – Oct 5 |
| Warm-season crops | |||
| Tomatoes | Mar 1 – 15 | Apr 26 – May 10 | – |
| Peppers | Feb 22 – Mar 8 | May 3 – 17 | – |
| Cucumbers | – | Apr 26 – May 17 | – |
| Zucchini | – | Apr 26 – May 24 | – |
| Pumpkins | – | Apr 26 – May 17 | – |
| Green beans | – | Apr 26 – Aug 17 | – |
| Sweet corn | – | Apr 26 – May 24 | – |
| Basil | Mar 22 – Apr 5 | May 3 – 10 | – |
Onions: from sets. Green beans: until 10 weeks before the first fall frost. Garlic: harvest next summer.
The year at a glance
Start indoors Plant outside Fall planting
The chance of frost, by date
| 1 year in 10 | Half of years | 9 years in 10 | |
|---|---|---|---|
| Spring frost after | April 26 | April 10 | March 25 |
| Fall frost before | October 12 | October 26 | November 7 |
Frost here means 32°F or colder. Read across: in 1 year in 10, spring frost carries on past the first date, which is why that date is the safe-to-plant date.
Hard freeze (28°F)
A hard freeze kills most garden plants, even hardy ones. The last one in spring usually comes around March 31 (April 15 in a late year), and the first one in fall around November 5.
Towns that use these dates
This is the nearest NOAA station with frost records for 3 towns.
Smithton, Otterville, Hughesville
Where these dates come from
NOAA weather station SEDALIA MEM AP, MO US (USW00003994), 1991–2020 climate normals. It's the nearest station for 3 zip codes, all within 10 miles:
65334, 65348, 65350
Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.