Frost dates for 95412Annapolis, CA
The average last spring frost in Annapolis is February 25 and the average first fall frost is December 3, giving a typical growing season of about 279 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Feb 25
- Average first fall frost
- Dec 3
- Growing season
- 279 days
Safer after Apr 2 (1-in-10 risk)
Possible by Nov 14 (1-in-10 risk)
First frost typically in 34 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 4 · Apr 5 · Apr 27 | Oct 29 · Nov 14 · Dec 2 | 222 days | 100% |
| Frost / freeze (32°F) | Jan 18 · Feb 25 · Apr 2 | Nov 14 · Dec 3 · Dec 25 | 279 days | 100% |
| Hard freeze (28°F) | Dec 20 · Jan 12 · Feb 21 | Nov 27 · Dec 19 · Jan 18 | 341 days | 82% |
Planting calendar for Annapolis
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 25 – Apr 2 |
| Tomatoes | Transplant outdoors | Mar 13 – Aug 13 |
| Peppers | Start seeds indoors | Jan 25 – Feb 25 |
| Peppers | Transplant outdoors | Mar 27 – Apr 27 |
| Eggplant | Start seeds indoors | Feb 11 – Mar 12 |
| Eggplant | Transplant outdoors | Mar 27 – Apr 27 |
| Cucumbers | Sow outdoors | Mar 27 – Aug 23 |
| Summer squash | Sow outdoors | Mar 13 – Apr 27 |
| Winter squash & pumpkins | Sow outdoors | Mar 27 – Apr 27 |
| Snap beans | Sow outdoors | Mar 13 – Sep 15 |
| Sweet corn | Sow outdoors | Mar 13 – Aug 13 |
| Watermelon & cantaloupe | Sow outdoors | Mar 27 – Apr 27 |
| Okra | Sow outdoors | Mar 20 – Apr 12 |
| Peas | Sow outdoors (spring) | Jan 25 – Mar 12 |
| Potatoes | Plant outdoors (spring) | Jan 25 – Mar 27 |
| Onions | Start seeds indoors (spring) | Dec 14 – Jan 10 |
| Onions | Transplant outdoors (spring) | Feb 11 – Mar 12 |
| Broccoli | Start seeds indoors (spring) | Jan 7 – Feb 10 |
| Broccoli | Transplant outdoors (spring) | Feb 11 – Mar 12 |
| Broccoli | Start seeds indoors (fall) | Aug 3 – Aug 13 |
| Broccoli | Transplant outdoors (fall) | Sep 2 – Sep 13 |
| Cabbage | Start seeds indoors (spring) | Dec 28 – Jan 25 |
| Cabbage | Transplant outdoors (spring) | Jan 25 – Feb 25 |
| Cabbage | Start seeds indoors (fall) | Jul 24 – Aug 23 |
| Cabbage | Transplant outdoors (fall) | Aug 23 – Sep 23 |
| Leaf lettuce | Sow outdoors (spring) | Jan 25 – Apr 12 |
| Leaf lettuce | Sow outdoors (fall) | Aug 23 – Oct 9 |
| Spinach | Sow outdoors (spring) | Jan 18 – Mar 3 |
| Spinach | Sow outdoors (fall) | Sep 9 – Oct 14 |
| Radishes | Sow outdoors (spring) | Jan 25 – Mar 17 |
| Radishes | Sow outdoors (fall) | Aug 23 – Oct 24 |
| Kale | Sow outdoors (spring) | Feb 11 – Mar 3 |
| Kale | Sow outdoors (fall) | Aug 16 – Sep 23 |
| Carrots | Sow outdoors (spring) | Feb 25 – Apr 12 |
| Carrots | Sow outdoors (fall) | Jul 24 – Sep 8 |
| Garlic | Plant outdoors (fall) | Nov 23 – Dec 24 |
Where these dates come from
ZIP code 95412 is matched to the NOAA station Cloverdale, CA, 30.1 km away, at 400 ft elevation (210 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Cloverdale, CA (used) | 400 ft | Feb 25 | Dec 3 |
| Ft Ross, CA | 112 ft | Feb 26 | Dec 27 |
| Healdsburg, CA | 177 ft | Feb 15 | Dec 2 |
| Occidental, CA | 865 ft | Jan 29 | Dec 30 |
Frost dates near Annapolis
- Stewarts Point, CA 95480 · last Feb 25, first Dec 3
- The Sea Ranch, CA 95497 · last Feb 26, first Dec 27
- Cazadero, CA 95421 · last Jan 29, first Dec 30
- Gualala, CA 95445 · last Feb 25, first Dec 3
- Yorkville, CA 95494 · last Mar 5, first Nov 21
- Jenner, CA 95450 · last Jan 29, first Dec 30
- Cloverdale, CA 95425 · last Feb 25, first Dec 3
- Point Arena, CA 95468 · last Mar 19, first Nov 20
Frequently asked questions
- When is the last frost in Annapolis, CA?
- For ZIP code 95412, the average last spring frost (32°F) is February 25, based on NOAA 1991-2020 climate normals for the Cloverdale, CA weather station. There is a 1-in-10 chance of a frost after April 2.
- When is the first frost in Annapolis, 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 95412?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 279 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.