Last spring frost
Mar 31
Frost Dates for Fisk, MO
First fall frost
Oct 31
Growing season
214 days
Hardiness zone
7b
In an average year around Fisk, MO, the last spring frost (32°F) is about Mar 31 and the first fall frost is about Oct 31, giving roughly a 214-day growing season. To be safe most years, wait until Mar 15 before setting out tender plants.
Last spring frost
Dates the last frost of spring typically ends. Plant tender crops after the risk has passed for your comfort level.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Apr 25 | Apr 11 | Mar 29 |
| Freeze (32°F) | Apr 15 | Mar 31 | Mar 15 |
| Hard (28°F) | Apr 4 | Mar 19 | Mar 1 |
| Severe (24°F) | Mar 24 | Mar 8 | Feb 14 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Apr 25 | Apr 21 | Apr 17 | Apr 14 | Apr 11 | Apr 8 | Apr 5 | Apr 1 | Mar 29 |
| 32°F | Apr 15 | Apr 10 | Apr 6 | Apr 3 | Mar 31 | Mar 28 | Mar 24 | Mar 20 | Mar 15 |
| 28°F | Apr 4 | Mar 30 | Mar 26 | Mar 22 | Mar 19 | Mar 16 | Mar 12 | Mar 7 | Mar 1 |
| 24°F | Mar 24 | Mar 19 | Mar 15 | Mar 12 | Mar 8 | Mar 4 | Feb 28 | Feb 23 | Feb 14 |
| 20°F | Mar 15 | Mar 9 | Mar 3 | Feb 28 | Feb 24 | Feb 18 | Feb 12 | Feb 7 | Feb 1 |
| 16°F | Mar 5 | Feb 27 | Feb 20 | Feb 13 | Feb 7 | Feb 3 | Jan 30 | Jan 22 | Jan 11 |
First fall frost
Dates the first frost of fall typically arrives. Count back by a crop's days-to-maturity to know your planting cutoff.
| Frost intensity | Early (10%) | Average (50%) | Late (90%) |
|---|---|---|---|
| Light (36°F) | Oct 10 | Oct 22 | Nov 1 |
| Freeze (32°F) | Oct 19 | Oct 31 | Nov 13 |
| Hard (28°F) | Oct 29 | Nov 10 | Nov 29 |
| Severe (24°F) | Nov 6 | Nov 24 | Dec 14 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 10 | Oct 14 | Oct 17 | Oct 20 | Oct 22 | Oct 24 | Oct 26 | Oct 28 | Nov 1 |
| 32°F | Oct 19 | Oct 23 | Oct 26 | Oct 29 | Oct 31 | Nov 2 | Nov 4 | Nov 7 | Nov 13 |
| 28°F | Oct 29 | Nov 2 | Nov 4 | Nov 7 | Nov 10 | Nov 13 | Nov 17 | Nov 22 | Nov 29 |
| 24°F | Nov 6 | Nov 11 | Nov 15 | Nov 20 | Nov 24 | Nov 28 | Dec 1 | Dec 6 | Dec 14 |
| 20°F | Nov 16 | Nov 23 | Nov 28 | Dec 2 | Dec 7 | Dec 11 | Dec 17 | Dec 23 | Dec 30 |
| 16°F | Dec 1 | Dec 7 | Dec 14 | Dec 21 | Dec 26 | Dec 30 | Jan 3 | Jan 11 | Jan 18 |
Growing season is measured at 32°F with about 50% probability. Hardiness zone from the 2023 USDA map; frost normals from NOAA 1991-2020.
Where this data comes from
@endif These dates are computed from the nearest official weather station with long-term records: Poplar Bluff Muni Ap, Mo, about 5.4 miles away@if(!empty($station['elevation_ft'])), at 327 ft elevation. The further the station and the greater the elevation difference from your yard, the more your local frost timing can vary.
How we calculate these dates
Frost and freeze dates come from the NOAA 1991–2020 U.S. Climate Normals, the National Oceanic and Atmospheric Administration's 30-year averages for each weather station. A date shown at the 50% level is the median: in half of years the frost falls on or before it. The 10% and 90% columns show the early and late ends of the range, so you can plant on the odds you're comfortable with. These are long-term averages, not a forecast for this year - always check your local outlook before planting.
Source: NOAA National Centers for Environmental Information, 1991–2020 Climate Normals (public domain). Harman is not affiliated with or endorsed by NOAA.
Frequently asked questions
When is the last frost in Fisk, MO?
On average, the last spring frost (32°F) around Fisk, MO is about Mar 31. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 15.
When is the first frost in the fall?
The first fall frost around Fisk, MO typically arrives about Oct 31. Count back by a crop's days to maturity to find the latest date you can plant it.
When can I plant tomatoes and other tender crops?
Tender crops like tomatoes, peppers and basil are damaged by frost, so wait until the last spring frost has passed - around Mar 31 on average, or Mar 15 to be safe most years.
How long is the growing season here?
The frost-free growing season (between the last spring and first fall 32°F frost) is about 214 days in a typical year.
Are these dates a forecast for this year?
No. They are 30-year averages from the NOAA 1991–2020 Climate Normals, not a prediction for the current year. Use them for planning and always check your local weather forecast before planting or protecting crops.
Local weather for 63940 Planting calendar → Missouri frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026