Frost dates for Kankakee Metro Wastewater, IL
At Kankakee Metro Wastewater, the median last spring frost (32°F) is Apr 19 and the median first fall frost is Oct 24, for a typical growing season of 188 days. For a 90% chance that the last frost has passed, wait until May 3. Nearby ZIP codes are in USDA hardiness zone 5b.
- Apr 19Last spring frost (median)50% chance of 32°F after this date
- May 3Safer planting date10% chance of 32°F after this date
- Oct 24First fall frost (median)50% chance of 32°F by this date
- 188 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 16 | Apr 30 | May 14 |
| 32°F | Apr 5 | Apr 19 | May 3 |
| 28°F | Mar 21 | Apr 6 | Apr 22 |
| 24°F | Mar 11 | Mar 27 | Apr 10 |
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 1 | Oct 14 | Oct 27 |
| 32°F | Oct 12 | Oct 24 | Nov 5 |
| 28°F | Oct 23 | Nov 4 | Nov 19 |
| 24°F | Nov 1 | Nov 15 | Nov 30 |
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 | 147 days | 166 days | 184 days |
| 32°F | 167 days | 188 days | 207 days |
| 28°F | 190 days | 211 days | 230 days |
| 24°F | 212 days | 233 days | 255 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 |
|---|---|---|---|
| 60915 | 5b | -15 to -10°F | 2 km |
| 60901 | 5b | -15 to -10°F | 3 km |
| 60914 | 5b | -15 to -10°F | 6 km |
| 60910 | 5b | -15 to -10°F | 10 km |
| 60950 | 5b | -15 to -10°F | 13 km |
| 60922 | 5b | -15 to -10°F | 14 km |
| 60913 | 5b | -15 to -10°F | 15 km |
| 60964 | 5b | -15 to -10°F | 17 km |
| 60941 | 5b | -15 to -10°F | 20 km |
| 60927 | 5b | -15 to -10°F | 23 km |
| 60958 | 5b | -15 to -10°F | 26 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 USC00114603, at 41.1350, -87.8856, elevation 183 m (600 ft).
- Data quality: Standard (24+ years of data), 29 years of freeze data.
- Average days per year at or below 32°F: 129.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Watseka 2 NW (39 km)
- Park Forest (44 km)
- Dwight (44 km)
- Channahon Dresden Isl Dam (44 km)
- Joliet Brandon Rd Dam (45 km)
- Piper City (49 km)
- Morris 1 NW (53 km)
- Romeoville WFO (55 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.