Frost dates for Fresno Yosemite Intl Airport, CA
At Fresno Yosemite Intl Airport, the median last spring frost (32°F) is Jan 14 and the median first fall frost is Dec 14, for a typical growing season of 337 days. For a 90% chance that the last frost has passed, wait until Feb 11. Nearby ZIP codes are in USDA hardiness zone 9b.
- Jan 14Last spring frost (median)50% chance of 32°F after this date
- Feb 11Safer planting date10% chance of 32°F after this date
- Dec 14First fall frost (median)50% chance of 32°F by this date
- 337 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 19 | Feb 15 | Mar 13 |
| 32°F | Dec 22 | Jan 14 | Feb 11 |
| 28°F | Dec 13 | Jan 1 | Jan 24 |
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 | Nov 16 | Dec 1 | Dec 24 |
| 32°F | Nov 29 | Dec 14 | Jan 12 |
| 28°F | Dec 7 | Dec 24 | Jan 15 |
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 | 256 days | 288 days | 323 days |
| 32°F | 305 days | 337 days | 365 days |
| 28°F | 343 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 | 100% |
| 32°F | 85% |
| 28°F | 33% |
| 24°F | 4% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 93726 | 9b | 25 to 30°F | 4 km |
| 93612 | 9b | 25 to 30°F | 4 km |
| 93703 | 9b | 25 to 30°F | 4 km |
| 93740 | 9b | 25 to 30°F | 5 km |
| 93611 | 9b | 25 to 30°F | 6 km |
| 93710 | 9b | 25 to 30°F | 6 km |
| 93701 | 9b | 25 to 30°F | 7 km |
| 93704 | 9b | 25 to 30°F | 8 km |
| 93728 | 9b | 25 to 30°F | 9 km |
| 93705 | 9b | 25 to 30°F | 10 km |
| 93650 | 9b | 25 to 30°F | 10 km |
| 93720 | 9b | 25 to 30°F | 10 km |
| 93711 | 9b | 25 to 30°F | 12 km |
| 93722 | 9b | 25 to 30°F | 14 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 USW00093193, at 36.7800, -119.7194, elevation 102 m (333 ft).
- Data quality: Standard (24+ years of data), 30 years of freeze data.
- Average days per year at or below 32°F: 11.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Fresno 5 NE (2 km)
- Friant Government Camp (24 km)
- Madera (34 km)
- Auberry 2 NW (39 km)
- Madera Muni Airport (42 km)
- Hanford Muni Airport (52 km)
- Hanford 1 S (52 km)
- N Fk Ranger Station (54 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.