Frost dates for Cambridge City 3 N, IN
At Cambridge City 3 N, the median last spring frost (32°F) is Apr 27 and the median first fall frost is Oct 9, for a typical growing season of 164 days. For a 90% chance that the last frost has passed, wait until May 10. Nearby ZIP codes are in USDA hardiness zone 6a.
- Apr 27Last spring frost (median)50% chance of 32°F after this date
- May 10Safer planting date10% chance of 32°F after this date
- Oct 9First fall frost (median)50% chance of 32°F by this date
- 164 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 24 | May 5 | May 19 |
| 32°F | Apr 16 | Apr 27 | May 10 |
| 28°F | Apr 6 | Apr 18 | May 1 |
| 24°F | Mar 26 | Apr 7 | Apr 20 |
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 | Sep 30 | Oct 11 |
| 32°F | Sep 28 | Oct 9 | Oct 22 |
| 28°F | Oct 6 | Oct 20 | Nov 1 |
| 24°F | Oct 17 | Nov 1 | Nov 18 |
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 | 129 days | 147 days | 163 days |
| 32°F | 147 days | 164 days | 181 days |
| 28°F | 166 days | 184 days | 201 days |
| 24°F | 188 days | 206 days | 226 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 |
|---|---|---|---|
| 47327 | 6a | -10 to -5°F | 4 km |
| 47335 | 6a | -10 to -5°F | 6 km |
| 47366 | 6a | -10 to -5°F | 7 km |
| 47370 | 6a | -10 to -5°F | 7 km |
| 47346 | 6a | -10 to -5°F | 7 km |
| 47345 | 6a | -10 to -5°F | 11 km |
| 47339 | 6a | -10 to -5°F | 12 km |
| 47357 | 6a | -10 to -5°F | 13 km |
| 47360 | 6a | -10 to -5°F | 17 km |
| 47354 | 6a | -10 to -5°F | 19 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 USC00121229, at 39.8667, -85.1833, elevation 305 m (1,000 ft).
- Data quality: Representative (10+ years), 11 years of freeze data.
- Average days per year at or below 32°F: 139.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- New Castle 3 SW (18 km)
- Richmond Wtr Wks (26 km)
- Rushville (37 km)
- Winchester Airport 3 E (41 km)
- Farmland 5 NNW (43 km)
- Muncie Delaware Co Airport (45 km)
- Greenfield (50 km)
- Brookville (51 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.