Frost dates for Crawfordsville 6 SE, IN
At Crawfordsville 6 SE, the median last spring frost (32°F) is Apr 27 and the median first fall frost is Oct 12, for a typical growing season of 167 days. For a 90% chance that the last frost has passed, wait until May 13. Nearby ZIP codes are in USDA hardiness zones 5b to 6a.
- Apr 27Last spring frost (median)50% chance of 32°F after this date
- May 13Safer planting date10% chance of 32°F after this date
- Oct 12First fall frost (median)50% chance of 32°F by this date
- 167 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 22 | May 7 | May 22 |
| 32°F | Apr 11 | Apr 27 | May 13 |
| 28°F | Mar 31 | Apr 14 | May 2 |
| 24°F | Mar 17 | Apr 2 | Apr 21 |
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 | Sep 19 | Oct 2 | Oct 15 |
| 32°F | Sep 26 | Oct 12 | Oct 25 |
| 28°F | Oct 6 | Oct 23 | Nov 6 |
| 24°F | Oct 18 | Nov 3 | Nov 23 |
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 | 126 days | 148 days | 168 days |
| 32°F | 146 days | 167 days | 188 days |
| 28°F | 167 days | 188 days | 210 days |
| 24°F | 191 days | 214 days | 237 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 |
|---|---|---|---|
| 47968 | 6a | -10 to -5°F | 6 km |
| 47933 | 5b | -15 to -10°F | 9 km |
| 47965 | 5b | -15 to -10°F | 11 km |
| 47954 | 6a | -10 to -5°F | 12 km |
| 47940 | 6a | -10 to -5°F | 14 km |
| 46172 | 6a | -10 to -5°F | 20 km |
| 46071 | 6a | -10 to -5°F | 20 km |
| 47990 | 5b | -15 to -10°F | 23 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 USC00121873, at 40.0028, -86.8011, elevation 255 m (836 ft).
- Data quality: Representative (10+ years), 25 years of freeze data.
- Average days per year at or below 32°F: 140.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Jamestown 2 E (19 km)
- Lafayette 8 S (34 km)
- Whitestown (38 km)
- Greencastle 1 W (40 km)
- Frankfort Disposal (41 km)
- Rockville (45 km)
- Attica 2e (46 km)
- Lafayette Purdue Univ Airport (47 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.