Last spring frost
Apr 8
Frost Dates for Pomona, MO
First fall frost
Oct 25
Growing season
199 days
Hardiness zone
7a
In an average year around Pomona, MO, the last spring frost (32°F) is about Apr 8 and the first fall frost is about Oct 25, giving roughly a 199-day growing season. To be safe most years, wait until Mar 23 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) | May 9 | Apr 23 | Apr 5 |
| Freeze (32°F) | Apr 26 | Apr 8 | Mar 23 |
| Hard (28°F) | Apr 14 | Mar 28 | Mar 10 |
| Severe (24°F) | Apr 2 | Mar 16 | Feb 27 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | May 9 | May 4 | Apr 30 | Apr 27 | Apr 23 | Apr 20 | Apr 16 | Apr 10 | Apr 5 |
| 32°F | Apr 26 | Apr 20 | Apr 16 | Apr 12 | Apr 8 | Apr 5 | Apr 1 | Mar 29 | Mar 23 |
| 28°F | Apr 14 | Apr 7 | Apr 3 | Mar 31 | Mar 28 | Mar 24 | Mar 21 | Mar 16 | Mar 10 |
| 24°F | Apr 2 | Mar 28 | Mar 24 | Mar 20 | Mar 16 | Mar 12 | Mar 8 | Mar 4 | Feb 27 |
| 20°F | Mar 24 | Mar 17 | Mar 12 | Mar 9 | Mar 5 | Mar 2 | Feb 27 | Feb 22 | Feb 15 |
| 16°F | Mar 15 | Mar 7 | Mar 3 | Feb 28 | Feb 24 | Feb 20 | Feb 14 | Feb 9 | Jan 31 |
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 3 | Oct 16 | Oct 28 |
| Freeze (32°F) | Oct 14 | Oct 25 | Nov 8 |
| Hard (28°F) | Oct 23 | Nov 4 | Nov 23 |
| Severe (24°F) | Nov 2 | Nov 15 | Dec 5 |
Show full probability table (all thresholds & percentiles)
| °F | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% |
|---|---|---|---|---|---|---|---|---|---|
| 36°F | Oct 3 | Oct 8 | Oct 11 | Oct 14 | Oct 16 | Oct 19 | Oct 21 | Oct 24 | Oct 28 |
| 32°F | Oct 14 | Oct 18 | Oct 21 | Oct 23 | Oct 25 | Oct 29 | Nov 1 | Nov 3 | Nov 8 |
| 28°F | Oct 23 | Oct 28 | Oct 31 | Nov 2 | Nov 4 | Nov 7 | Nov 11 | Nov 16 | Nov 23 |
| 24°F | Nov 2 | Nov 5 | Nov 9 | Nov 12 | Nov 15 | Nov 20 | Nov 25 | Nov 30 | Dec 5 |
| 20°F | Nov 9 | Nov 15 | Nov 20 | Nov 25 | Nov 29 | Dec 2 | Dec 6 | Dec 11 | Dec 17 |
| 16°F | Nov 20 | Nov 28 | Dec 2 | Dec 7 | Dec 11 | Dec 15 | Dec 19 | Dec 24 | Jan 1 |
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: West Plains Muni Ap, Mo, about 1.6 miles away@if(!empty($station['elevation_ft'])), at 1,223 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 Pomona, MO?
On average, the last spring frost (32°F) around Pomona, MO is about Apr 8. In cooler years it can run later, so for a safer bet many gardeners wait until Mar 23.
When is the first frost in the fall?
The first fall frost around Pomona, MO typically arrives about Oct 25. 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 Apr 8 on average, or Mar 23 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 199 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 65789 Planting calendar → Missouri frost dates →
Data source: NOAA 1991–2020 Climate Normals · Page updated Aug 4, 2026