Frost dates for Lavon Dam, TX
At Lavon Dam, the median last spring frost (32°F) is Mar 10 and the median first fall frost is Nov 19, for a typical growing season of 254 days. For a 90% chance that the last frost has passed, wait until Mar 31. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 10Last spring frost (median)50% chance of 32°F after this date
- Mar 31Safer planting date10% chance of 32°F after this date
- Nov 19First fall frost (median)50% chance of 32°F by this date
- 254 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 | Mar 4 | Mar 26 | Apr 16 |
| 32°F | Feb 20 | Mar 10 | Mar 31 |
| 28°F | Feb 1 | Feb 26 | Mar 17 |
| 24°F | Jan 12 | Feb 10 | Mar 7 |
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 25 | Nov 8 | Nov 25 |
| 32°F | Nov 1 | Nov 19 | Dec 5 |
| 28°F | Nov 13 | Dec 1 | Dec 22 |
| 24°F | Nov 24 | Dec 15 | Jan 16 |
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 | 202 days | 228 days | 255 days |
| 32°F | 227 days | 254 days | 278 days |
| 28°F | 252 days | 278 days | 307 days |
| 24°F | 276 days | 307 days | 341 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 98% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 75166 | 8b | 15 to 20°F | 4 km |
| 75098 | 8b | 15 to 20°F | 5 km |
| 75173 | 8b | 15 to 20°F | 9 km |
| 75087 | 8b | 15 to 20°F | 10 km |
| 75048 | 8b | 15 to 20°F | 11 km |
| 75094 | 8b | 15 to 20°F | 12 km |
| 75089 | 8b | 15 to 20°F | 12 km |
| 75132 | 8b | 15 to 20°F | 15 km |
| 75088 | 8b | 15 to 20°F | 17 km |
| 75164 | 8b | 15 to 20°F | 18 km |
| 75189 | 8b | 15 to 20°F | 19 km |
| 75442 | 8b | 15 to 20°F | 20 km |
| 75032 | 8b | 15 to 20°F | 20 km |
| 75043 | 8b | 15 to 20°F | 22 km |
| 75182 | 8b | 15 to 20°F | 27 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 USC00415094, at 33.0353, -96.4861, elevation 155 m (510 ft).
- Data quality: Representative (10+ years), 21 years of freeze data.
- Average days per year at or below 32°F: 44.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- McKinney Muni Airport (19 km)
- McKinney Municipal Airport (20 km)
- Richardson (24 km)
- Greenville Kgvl Radio (39 km)
- Dallas Love Field (40 km)
- Terrell Muni Airport (42 km)
- Dallas Fort Worth Airport (52 km)
- Dallas Redbird Airport (53 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.