Last frost date in Fresno, CA
In Fresno, the last spring frost comes around January 14 in an average year. Wait until February 11 if you want 90% odds of no more frost. The first fall frost usually arrives about December 14, which leaves 337 frost-free days. An early freeze before November 29 happens one year in ten.
- Safe after (10% risk)
- Feb 11
- Average first frost
- Dec 14
- Frost-free season
- 337 days
- Hard freeze (28°F) ends
- Jan 1
No frost in the next 6 nights
National Weather Service forecast, updated Oct 22, 12:24 UTC
- ThuOct 2255°
- FriOct 2354°
- SatOct 2453°
- SunOct 2552°
- MonOct 2651°
- TueOct 2751°
Planting calendar for Fresno
Windows count forward or back from the average frost dates above. Click a crop for dates across California.
Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Dec 22 | Jan 14 | Feb 11 | Nov 29 | Dec 14 | Jan 12 |
| Hard freeze, 28°F | Dec 13 | Jan 1 | Jan 24 | Dec 7 | Dec 24 | Jan 15 |
Read the spring 10% column as the date after which only one year in ten still gets frost. That is the safer date for tomatoes, peppers and basil.
Where these numbers come from
NOAA station Fresno Yosemite International Airport (USW00093193) sits 4.1 miles from the center of Fresno at 333 feet. Its averages cover 1991 to 2020. Low spots, valleys and open fields can keep getting frost a week or two after the station stops; city centers and lakeshores usually get less of it.
Questions
When is the last frost in Fresno, CA?
The average last frost date in Fresno is January 14, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after February 11.
When is the first frost in Fresno?
The first frost in fall usually comes around December 14. One year in ten it arrives before November 29.
How long is the growing season in Fresno?
About 337 days between the average last and first frost.
When should I plant tomatoes in Fresno?
Plant tomato seedlings outside from February 15 to March 1. Start seeds indoors six to eight weeks earlier.