Frost dates for Cape Girardeau Muni Airport, MO
At Cape Girardeau Muni Airport, the median last spring frost (32°F) is Apr 5 and the median first fall frost is Oct 25, for a typical growing season of 201 days. For a 90% chance that the last frost has passed, wait until Apr 21. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 5Last spring frost (median)50% chance of 32°F after this date
- Apr 21Safer planting date10% chance of 32°F after this date
- Oct 25First fall frost (median)50% chance of 32°F by this date
- 201 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | Apr 2 | Apr 17 | May 1 |
| 32°F | Mar 19 | Apr 5 | Apr 21 |
| 28°F | Mar 7 | Mar 26 | Apr 11 |
| 24°F | Feb 24 | Mar 14 | Apr 2 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Oct 2 | Oct 16 | Oct 28 |
| 32°F | Oct 12 | Oct 25 | Nov 6 |
| 28°F | Oct 23 | Nov 4 | Nov 21 |
| 24°F | Nov 2 | Nov 16 | Dec 7 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 161 days | 181 days | 199 days |
| 32°F | 182 days | 201 days | 223 days |
| 28°F | 200 days | 223 days | 249 days |
| 24°F | 224 days | 249 days | 274 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 63758 | 7a | 0 to 5°F | 4 km |
| 63703 | 7a | 0 to 5°F | 6 km |
| 63780 | 7a | 0 to 5°F | 9 km |
| 63745 | 7a | 0 to 5°F | 9 km |
| 63740 | 7a | 0 to 5°F | 11 km |
| 63742 | 7a | 0 to 5°F | 13 km |
| 63744 | 7a | 0 to 5°F | 14 km |
| 62990 | 7a | 0 to 5°F | 15 km |
| 62957 | 7a | 0 to 5°F | 16 km |
| 63736 | 7a | 0 to 5°F | 16 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USW00003935, at 37.2253, -89.5706, elevation 102 m (336 ft).
- Data quality: Standard (24+ years of data), 27 years of freeze data.
- Average days per year at or below 32°F: 90.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Jackson (19 km)
- Advance 1 S (34 km)
- Marble Hill (36 km)
- Sikeston Power Station (39 km)
- Perryville Water Plant (64 km)
- New Madrid (71 km)
- Wappapello Dam (72 km)
- Fredericktown (76 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.