Checking current alerts… View NWS forecast and alerts.
Will it freeze in St. Petersburg in the next 7 nights?
No overnight lows at or below 32°F are forecast in St. Petersburg during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 72°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.
- Tonight 72°F Above 36°F · Mostly Clear
- Fri, Nov 6 71°F Above 36°F · Mostly Clear
- Sat, Nov 7 66°F Above 36°F · Mostly Clear
- Sun, Nov 8 66°F Above 36°F · Partly Cloudy
- Mon, Nov 9 65°F Above 36°F · Partly Cloudy
- Tue, Nov 10 66°F Above 36°F · Mostly Cloudy then Isolated Rain Showers
- Wed, Nov 11 66°F Above 36°F · Isolated Rain Showers
Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.
Frost and freeze probabilities
Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.
These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.
Average first hard freeze in St. Petersburg
Most years have no 28°F hard freeze at St Petersburg, according to NOAA’s 1991–2020 Climate Normals. Check the short-term forecast above during cold snaps.
| Temperature | Last spring date 90% · 50% · 10% chance of a later freeze | First fall date 10% · 50% · 90% chance of an earlier freeze | Season |
|---|---|---|---|
| 36°F frost possible | Dec 28 · Jan 22 · Feb 14 | Dec 20 · Jan 13 · Feb 8 | 365 days |
| 32°F freeze | Dec 31 · Jan 17 · Feb 5 | Dec 23 · Jan 15 · Feb 5 | 365 days |
| 28°F hard freeze | rare in most years | rare in most years | 365 days |
Average high temperature by month
1991–2020 normals at St Petersburg
Average low temperature by month
Months with lows near or below freezing carry frost risk
Where these frost dates come from
The frost dates for St. Petersburg, FL come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: St Petersburg (station USC00087886, elevation 8 ft), 1.1 mi from St. Petersburg. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.
Frost dates near St. Petersburg
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Gulfport, FL | 4.3 mi | rare | rare |
| South Pasadena, FL | 5.6 mi | rare | rare |
| St. Pete Beach, FL | 6.8 mi | rare | rare |
| Treasure Island, FL | 7.5 mi | rare | rare |
| Pinellas Park, FL | 7.5 mi | rare | rare |
| Seminole, FL | 9.9 mi | rare | rare |
| Largo, FL | 13 mi | rare | rare |
| Clearwater, FL | 17 mi | rare | rare |
| Palmetto, FL | 17 mi | rare | rare |
| Safety Harbor, FL | 17 mi | rare | rare |
Frequently asked questions
When is the last frost in St. Petersburg?
St. Petersburg doesn’t reach 32°F in a typical year, according to NOAA’s 1991–2020 normals for the nearest station.
When is the first frost in St. Petersburg?
Freezes are uncommon here; check the 7-night forecast above during cold snaps.
Can it frost in St. Petersburg after the last frost date?
Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after January 22.
What growing zone is St. Petersburg?
St. Petersburg is in USDA Plant Hardiness Zone 10b (average annual extreme minimum temperature 35 to 40°F), based on the 2023 USDA map for ZIP code 33701. See growing zones in Florida.
More: all Florida frost dates · Florida growing zones · UV index today in St. Petersburg · frost vs. freeze