Frost dates for Le Claire L&d 14, IA
At Le Claire L&d 14, the median last spring frost (32°F) is Apr 16 and the median first fall frost is Oct 25, for a typical growing season of 190 days. For a 90% chance that the last frost has passed, wait until Apr 30. Nearby ZIP codes are in USDA hardiness zone 5b.
- Apr 16Last spring frost (median)50% chance of 32°F after this date
- Apr 30Safer planting date10% chance of 32°F after this date
- Oct 25First fall frost (median)50% chance of 32°F by this date
- 190 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 11 | Apr 27 | May 8 |
| 32°F | Apr 2 | Apr 16 | Apr 30 |
| 28°F | Mar 21 | Apr 6 | Apr 21 |
| 24°F | Mar 10 | Mar 27 | Apr 9 |
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 15 | Oct 28 |
| 32°F | Oct 11 | Oct 25 | Nov 6 |
| 28°F | Oct 23 | Nov 2 | Nov 18 |
| 24°F | Nov 1 | Nov 13 | 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 | 151 days | 171 days | 190 days |
| 32°F | 172 days | 190 days | 209 days |
| 28°F | 191 days | 210 days | 229 days |
| 24°F | 210 days | 229 days | 252 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 |
|---|---|---|---|
| 61256 | 5b | -15 to -10°F | 2 km |
| 52767 | 5b | -15 to -10°F | 2 km |
| 61278 | 5b | -15 to -10°F | 6 km |
| 52722 | 5b | -15 to -10°F | 6 km |
| 61244 | 5b | -15 to -10°F | 6 km |
| 52753 | 5b | -15 to -10°F | 6 km |
| 61236 | 5b | -15 to -10°F | 8 km |
| 61275 | 5b | -15 to -10°F | 9 km |
| 61282 | 5b | -15 to -10°F | 9 km |
| 61239 | 5b | -15 to -10°F | 9 km |
| 61241 | 5b | -15 to -10°F | 12 km |
| 52768 | 5b | -15 to -10°F | 14 km |
| 61257 | 5b | -15 to -10°F | 15 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 USC00134705, at 41.5747, -90.4006, elevation 176 m (577 ft).
- Data quality: Standard (24+ years of data), 29 years of freeze data.
- Average days per year at or below 32°F: 126.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Davenport WFO (16 km)
- Davenport (16 km)
- Clinton #1 (27 km)
- Lowden (54 km)
- Muscatine 2n (55 km)
- Muscatine (59 km)
- Maquoketa (60 km)
- Tipton (64 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.