Frost dates for Fulton L&d #13, IL
At Fulton L&d #13, the median last spring frost (32°F) is Apr 13 and the median first fall frost is Oct 26, for a typical growing season of 195 days. For a 90% chance that the last frost has passed, wait until Apr 28. Nearby ZIP codes are in USDA hardiness zones 5a to 5b.
- Apr 13Last spring frost (median)50% chance of 32°F after this date
- Apr 28Safer planting date10% chance of 32°F after this date
- Oct 26First fall frost (median)50% chance of 32°F by this date
- 195 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 9 | Apr 24 | May 9 |
| 32°F | Apr 1 | Apr 13 | Apr 28 |
| 28°F | Mar 19 | Apr 4 | Apr 18 |
| 24°F | Mar 10 | Mar 26 | 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 16 | Oct 28 |
| 32°F | Oct 13 | Oct 26 | Nov 7 |
| 28°F | Oct 23 | Nov 3 | Nov 19 |
| 24°F | Oct 31 | Nov 14 | 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 | 155 days | 174 days | 193 days |
| 32°F | 174 days | 195 days | 215 days |
| 28°F | 196 days | 214 days | 235 days |
| 24°F | 213 days | 234 days | 254 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 |
|---|---|---|---|
| 61252 | 5b | -15 to -10°F | 7 km |
| 52732 | 5b | -15 to -10°F | 8 km |
| 52701 | 5a | -20 to -15°F | 12 km |
| 61285 | 5b | -15 to -10°F | 12 km |
| 52727 | 5a | -20 to -15°F | 16 km |
| 52771 | 5a | -20 to -15°F | 16 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 USC00113290, at 41.8978, -90.1544, elevation 180 m (592 ft).
- Data quality: Standard (24+ years of data), 24 years of freeze data.
- Average days per year at or below 32°F: 132.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Morrison (19 km)
- Mount Carroll (26 km)
- Elizabeth (47 km)
- Polo 5nw (48 km)
- Geneseo (50 km)
- Dixon 1w (54 km)
- Rock Island L&d 15 (54 km)
- Moline Quad City Intl Airport (57 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.