Frost dates for 93631Kingsburg, CA
The average last spring frost in Kingsburg is February 20 and the average first fall frost is November 23, giving a typical growing season of about 276 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Feb 20
- Average first fall frost
- Nov 23
- Growing season
- 276 days
Safer after Mar 21 (1-in-10 risk)
Possible by Nov 6 (1-in-10 risk)
First frost typically in 27 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | Feb 25 · Mar 25 · Apr 18 | Oct 24 · Nov 9 · Nov 24 | 229 days | 100% |
| Frost / freeze (32°F) | Jan 18 · Feb 20 · Mar 21 | Nov 6 · Nov 23 · Dec 12 | 276 days | 100% |
| Hard freeze (28°F) | Dec 17 · Jan 19 · Feb 18 | Nov 20 · Dec 5 · Jan 9 | 329 days | 90% |
Planting calendar for Kingsburg
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Jan 20 – Mar 28 |
| Tomatoes | Transplant outdoors | Mar 8 – Aug 3 |
| Peppers | Start seeds indoors | Jan 20 – Feb 20 |
| Peppers | Transplant outdoors | Mar 22 – Apr 22 |
| Eggplant | Start seeds indoors | Feb 6 – Mar 7 |
| Eggplant | Transplant outdoors | Mar 22 – Apr 22 |
| Cucumbers | Sow outdoors | Mar 22 – Aug 13 |
| Summer squash | Sow outdoors | Mar 8 – Apr 22 |
| Winter squash & pumpkins | Sow outdoors | Mar 22 – Apr 22 |
| Snap beans | Sow outdoors | Mar 8 – Sep 5 |
| Sweet corn | Sow outdoors | Mar 8 – Aug 3 |
| Watermelon & cantaloupe | Sow outdoors | Mar 22 – Apr 22 |
| Okra | Sow outdoors | Mar 15 – Apr 7 |
| Peas | Sow outdoors (spring) | Jan 20 – Mar 7 |
| Potatoes | Plant outdoors (spring) | Jan 20 – Mar 22 |
| Onions | Start seeds indoors (spring) | Dec 9 – Jan 5 |
| Onions | Transplant outdoors (spring) | Feb 6 – Mar 7 |
| Broccoli | Start seeds indoors (spring) | Jan 2 – Feb 5 |
| Broccoli | Transplant outdoors (spring) | Feb 6 – Mar 7 |
| Broccoli | Start seeds indoors (fall) | Jul 24 – Aug 3 |
| Broccoli | Transplant outdoors (fall) | Aug 23 – Sep 3 |
| Cabbage | Start seeds indoors (spring) | Dec 23 – Jan 20 |
| Cabbage | Transplant outdoors (spring) | Jan 20 – Feb 20 |
| Cabbage | Start seeds indoors (fall) | Jul 14 – Aug 13 |
| Cabbage | Transplant outdoors (fall) | Aug 13 – Sep 13 |
| Leaf lettuce | Sow outdoors (spring) | Jan 20 – Apr 7 |
| Leaf lettuce | Sow outdoors (fall) | Aug 13 – Sep 29 |
| Spinach | Sow outdoors (spring) | Jan 13 – Feb 26 |
| Spinach | Sow outdoors (fall) | Aug 30 – Oct 4 |
| Radishes | Sow outdoors (spring) | Jan 20 – Mar 12 |
| Radishes | Sow outdoors (fall) | Aug 13 – Oct 14 |
| Kale | Sow outdoors (spring) | Feb 6 – Feb 26 |
| Kale | Sow outdoors (fall) | Aug 6 – Sep 13 |
| Carrots | Sow outdoors (spring) | Feb 20 – Apr 7 |
| Carrots | Sow outdoors (fall) | Jul 14 – Aug 29 |
| Garlic | Plant outdoors (fall) | Nov 13 – Dec 14 |
Where these dates come from
ZIP code 93631 is matched to the NOAA station Hanford Muni Ap, CA, 22.4 km away, at 249 ft elevation (46 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Hanford Muni Ap, CA (used) | 249 ft | Feb 20 | Nov 23 |
| Hanford 1 S, CA | 237 ft | Feb 7 | Dec 1 |
| Visalia, CA | 303 ft | Jan 23 | Dec 13 |
| Fresno 5 Ne, CA | 338 ft | Jan 30 | Dec 11 |
Frost dates near Kingsburg
- Traver, CA 93673 · last Feb 20, first Nov 23
- Selma, CA 93662 · last Jan 30, first Dec 11
- Parlier, CA 93648 · last Jan 30, first Dec 11
- Dinuba, CA 93618 · last Jan 23, first Dec 13
- Reedley, CA 93654 · last Jan 30, first Dec 11
- Del Rey, CA 93616 · last Jan 30, first Dec 11
- Laton, CA 93242 · last Feb 20, first Nov 23
- Fowler, CA 93625 · last Jan 30, first Dec 11
Frequently asked questions
- When is the last frost in Kingsburg, CA?
- For ZIP code 93631, the average last spring frost (32°F) is February 20, based on NOAA 1991-2020 climate normals for the Hanford Muni Ap, CA weather station. There is a 1-in-10 chance of a frost after March 21.
- When is the first frost in Kingsburg, CA?
- The average first fall frost (32°F) is November 23. There is a 1-in-10 chance of frost by November 6, so tender plants are at risk from that point on.
- How long is the growing season in 93631?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 276 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.