Frost dates for 93645O Neals, CA
The average last spring frost in O Neals is March 25 and the average first fall frost is December 3, giving a typical growing season of about 253 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Mar 25
- Average first fall frost
- Dec 3
- Growing season
- 253 days
Safer after Apr 22 (1-in-10 risk)
Possible by Nov 14 (1-in-10 risk)
First frost typically in 37 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) | Mar 23 · Apr 17 · May 12 | Oct 31 · Nov 17 · Dec 4 | 212 days | 100% |
| Frost / freeze (32°F) | Feb 5 · Mar 25 · Apr 22 | Nov 14 · Dec 3 · Dec 21 | 253 days | 100% |
| Hard freeze (28°F) | Dec 21 · Jan 29 · Apr 1 | Nov 28 · Dec 17 · Jan 26 | 323 days | 90% |
Planting calendar for O Neals
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 | Feb 22 – Apr 30 |
| Tomatoes | Transplant outdoors | Apr 10 – Aug 13 |
| Peppers | Start seeds indoors | Feb 22 – Mar 25 |
| Peppers | Transplant outdoors | Apr 24 – May 25 |
| Eggplant | Start seeds indoors | Mar 11 – Apr 9 |
| Eggplant | Transplant outdoors | Apr 24 – May 25 |
| Cucumbers | Sow outdoors | Apr 24 – Aug 23 |
| Summer squash | Sow outdoors | Apr 10 – May 25 |
| Winter squash & pumpkins | Sow outdoors | Apr 24 – May 25 |
| Snap beans | Sow outdoors | Apr 10 – Sep 15 |
| Sweet corn | Sow outdoors | Apr 10 – Aug 13 |
| Watermelon & cantaloupe | Sow outdoors | Apr 24 – May 25 |
| Okra | Sow outdoors | Apr 17 – May 10 |
| Peas | Sow outdoors (spring) | Feb 22 – Apr 9 |
| Potatoes | Plant outdoors (spring) | Feb 22 – Apr 24 |
| Onions | Start seeds indoors (spring) | Jan 11 – Feb 7 |
| Onions | Transplant outdoors (spring) | Mar 11 – Apr 9 |
| Broccoli | Start seeds indoors (spring) | Feb 4 – Mar 10 |
| Broccoli | Transplant outdoors (spring) | Mar 11 – Apr 9 |
| Broccoli | Start seeds indoors (fall) | Aug 3 – Aug 13 |
| Broccoli | Transplant outdoors (fall) | Sep 2 – Sep 13 |
| Cabbage | Start seeds indoors (spring) | Jan 25 – Feb 22 |
| Cabbage | Transplant outdoors (spring) | Feb 22 – Mar 25 |
| Cabbage | Start seeds indoors (fall) | Jul 24 – Aug 23 |
| Cabbage | Transplant outdoors (fall) | Aug 23 – Sep 23 |
| Leaf lettuce | Sow outdoors (spring) | Feb 22 – May 10 |
| Leaf lettuce | Sow outdoors (fall) | Aug 23 – Oct 9 |
| Spinach | Sow outdoors (spring) | Feb 15 – Mar 31 |
| Spinach | Sow outdoors (fall) | Sep 9 – Oct 14 |
| Radishes | Sow outdoors (spring) | Feb 22 – Apr 14 |
| Radishes | Sow outdoors (fall) | Aug 23 – Oct 24 |
| Kale | Sow outdoors (spring) | Mar 11 – Mar 31 |
| Kale | Sow outdoors (fall) | Aug 16 – Sep 23 |
| Carrots | Sow outdoors (spring) | Mar 25 – May 10 |
| Carrots | Sow outdoors (fall) | Jul 24 – Sep 8 |
| Garlic | Plant outdoors (fall) | Nov 23 – Dec 24 |
Where these dates come from
ZIP code 93645 is matched to the NOAA station Auberry 2 Nw, CA, 15.7 km away, at 2,090 ft elevation (240 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Auberry 2 Nw, CA (used) | 2,090 ft | Mar 25 | Dec 3 |
| N Fk Rs, CA | 2,645 ft | Apr 24 | Nov 4 |
| Friant Government Camp, CA | 410 ft | Mar 9 | Dec 1 |
| So Entrance Yosemite Np, CA | 5,047 ft | May 24 | Oct 10 |
Frost dates near O Neals
- Coarsegold, CA 93614 · last Mar 25, first Dec 3
- Friant, CA 93626 · last Mar 9, first Dec 1
- North Fork, CA 93643 · last Apr 24, first Nov 4
- Wishon, CA 93669 · last May 24, first Oct 10
- Bass Lake, CA 93604 · last Apr 21, first Oct 27
- Oakhurst, CA 93644 · last Apr 24, first Nov 4
- Auberry, CA 93602 · last Mar 25, first Dec 3
- Prather, CA 93651 · last Mar 9, first Dec 1
Frequently asked questions
- When is the last frost in O Neals, CA?
- For ZIP code 93645, the average last spring frost (32°F) is March 25, based on NOAA 1991-2020 climate normals for the Auberry 2 Nw, CA weather station. There is a 1-in-10 chance of a frost after April 22.
- When is the first frost in O Neals, CA?
- The average first fall frost (32°F) is December 3. There is a 1-in-10 chance of frost by November 14, so tender plants are at risk from that point on.
- How long is the growing season in 93645?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 253 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.