Frost dates for Shakamak State Park, IN
At Shakamak State Park, the median last spring frost (32°F) is Apr 14 and the median first fall frost is Oct 26, for a typical growing season of 193 days. For a 90% chance that the last frost has passed, wait until May 1. Nearby ZIP codes are in USDA hardiness zones 6a to 6b.
- Apr 14Last spring frost (median)50% chance of 32°F after this date
- May 1Safer planting date10% chance of 32°F after this date
- Oct 26First fall frost (median)50% chance of 32°F by this date
- 193 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 10 | Apr 25 | May 11 |
| 32°F | Mar 31 | Apr 14 | May 1 |
| 28°F | Mar 19 | Apr 1 | Apr 17 |
| 24°F | Mar 5 | Mar 24 | Apr 7 |
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 3 | Oct 16 | Oct 28 |
| 32°F | Oct 12 | Oct 26 | Nov 6 |
| 28°F | Oct 23 | Nov 3 | Nov 17 |
| 24°F | Nov 2 | Nov 14 | Dec 1 |
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 | 153 days | 172 days | 191 days |
| 32°F | 172 days | 193 days | 212 days |
| 28°F | 194 days | 215 days | 237 days |
| 24°F | 216 days | 237 days | 260 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 |
|---|---|---|---|
| 47845 | 6a | -10 to -5°F | 4 km |
| 47438 | 6a | -10 to -5°F | 6 km |
| 47855 | 6a | -10 to -5°F | 6 km |
| 47445 | 6a | -10 to -5°F | 7 km |
| 47858 | 6a | -10 to -5°F | 11 km |
| 47848 | 6b | -5 to 0°F | 13 km |
| 47441 | 6b | -5 to 0°F | 15 km |
| 47882 | 6b | -5 to 0°F | 17 km |
| 47841 | 6a | -10 to -5°F | 17 km |
| 47471 | 6b | -5 to 0°F | 21 km |
| 47465 | 6b | -5 to 0°F | 21 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 USC00127959, at 39.1614, -87.2436, elevation 167 m (549 ft).
- Data quality: Standard (24+ years of data), 26 years of freeze data.
- Average days per year at or below 32°F: 113.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Farmersburg Tv-2 (16 km)
- Terre Haute Caa Airport (32 km)
- Terre Haute Hulman Regional Airport (33 km)
- Freelandville (33 km)
- Elnora (35 km)
- Terre Haute Indiana State (37 km)
- Spencer (43 km)
- Crane Nsa (48 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.