Frost dates for Tarpon Springs Sewage Plant, FL
At Tarpon Springs Sewage Plant, the median last spring frost (32°F) is Jan 20 and the median first fall frost is Jan 9, for a typical growing season of 354 days. For a 90% chance that the last frost has passed, wait until Feb 14. Nearby ZIP codes are in USDA hardiness zones 9b to 10a.
- Jan 20Last spring frost (median)50% chance of 32°F after this date
- Feb 14Safer planting date10% chance of 32°F after this date
- Jan 9First fall frost (median)50% chance of 32°F by this date
- 354 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 | Jan 1 | Jan 31 | Mar 1 |
| 32°F | Dec 29 | Jan 20 | Feb 14 |
| 28°F | Dec 29 | Jan 15 | Feb 5 |
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 | Dec 3 | Dec 31 | Jan 27 |
| 32°F | Dec 16 | Jan 9 | Feb 4 |
| 28°F | Dec 24 | Jan 13 | Feb 1 |
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 | 293 days | 326 days | 359 days |
| 32°F | 318 days | 354 days | 365 days |
| 28°F | 338 days | 365 days | 365 days |
| 24°F | 365 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 91% |
| 32°F | 58% |
| 28°F | 21% |
| 24°F | 4% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 34689 | 10a | 30 to 35°F | 1 km |
| 34691 | 10a | 30 to 35°F | 5 km |
| 34690 | 10a | 30 to 35°F | 5 km |
| 34688 | 10a | 30 to 35°F | 7 km |
| 34683 | 10a | 30 to 35°F | 7 km |
| 34681 | 10a | 30 to 35°F | 7 km |
| 34684 | 10a | 30 to 35°F | 8 km |
| 34685 | 10a | 30 to 35°F | 9 km |
| 34652 | 10a | 30 to 35°F | 10 km |
| 34655 | 9b | 25 to 30°F | 12 km |
| 34653 | 10a | 30 to 35°F | 12 km |
| 34698 | 10a | 30 to 35°F | 13 km |
| 33761 | 10a | 30 to 35°F | 14 km |
| 34677 | 10a | 30 to 35°F | 14 km |
| 33556 | 9b | 25 to 30°F | 15 km |
| 34668 | 10a | 30 to 35°F | 16 km |
| 34654 | 9b | 25 to 30°F | 20 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 USC00088824, at 28.1522, -82.7539, elevation 2 m (6 ft).
- Data quality: Representative (10+ years), 24 years of freeze data.
- Average days per year at or below 32°F: 2.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- St. Petersburg Intl Airport (28 km)
- Tampa Intl Airport (30 km)
- Weeki Wachee (44 km)
- St. Petersburg (45 km)
- St. Petersburg Airport (45 km)
- Brooksville Hernando Co Airport (46 km)
- Saint Leo (53 km)
- Tampa Bay Area WFO (61 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.