Frost dates for Hartford City 4 ESE, IN
At Hartford City 4 ESE, the median last spring frost (32°F) is Apr 22 and the median first fall frost is Oct 22, for a typical growing season of 181 days. For a 90% chance that the last frost has passed, wait until May 7. Nearby ZIP codes are in USDA hardiness zone 6a.
- Apr 22Last spring frost (median)50% chance of 32°F after this date
- May 7Safer planting date10% chance of 32°F after this date
- Oct 22First fall frost (median)50% chance of 32°F by this date
- 181 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 18 | May 2 | May 17 |
| 32°F | Apr 6 | Apr 22 | May 7 |
| 28°F | Mar 26 | Apr 10 | Apr 27 |
| 24°F | Mar 14 | Mar 31 | Apr 15 |
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 27 | Oct 11 | Oct 25 |
| 32°F | Oct 7 | Oct 22 | Nov 3 |
| 28°F | Oct 20 | Nov 1 | Nov 15 |
| 24°F | Nov 1 | Nov 12 | Nov 29 |
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 | 142 days | 161 days | 178 days |
| 32°F | 161 days | 181 days | 201 days |
| 28°F | 183 days | 205 days | 226 days |
| 24°F | 206 days | 227 days | 253 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 |
|---|---|---|---|
| 47348 | 6a | -10 to -5°F | 6 km |
| 47336 | 6a | -10 to -5°F | 8 km |
| 47338 | 6a | -10 to -5°F | 11 km |
| 47359 | 6a | -10 to -5°F | 13 km |
| 47369 | 6a | -10 to -5°F | 15 km |
| 46989 | 6a | -10 to -5°F | 16 km |
| 46957 | 6a | -10 to -5°F | 19 km |
| 46759 | 6a | -10 to -5°F | 21 km |
| 46781 | 6a | -10 to -5°F | 22 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 USC00123777, at 40.4356, -85.2892, elevation 282 m (924 ft).
- Data quality: Standard (24+ years of data), 28 years of freeze data.
- Average days per year at or below 32°F: 116.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Farmland 5 NNW (23 km)
- Muncie Delaware Co Airport (24 km)
- Portland 1 SW (25 km)
- Marion 2 N (35 km)
- Berne Wastewater Plant (40 km)
- Winchester Airport 3 E (43 km)
- Bluffton 6n (44 km)
- Huntington (50 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.