Frost dates for 02065Ocean Bluff, MA
The average last spring frost in Ocean Bluff is April 15 and the average first fall frost is November 1, giving a typical growing season of about 198 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 15
- Average first fall frost
- Nov 1
- Growing season
- 198 days
Safer after Apr 28 (1-in-10 risk)
Possible by Oct 17 (1-in-10 risk)
First frost typically in 0 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) | Apr 16 · Apr 30 · May 11 | Oct 6 · Oct 20 · Nov 3 | 174 days | 100% |
| Frost / freeze (32°F) | Apr 2 · Apr 15 · Apr 28 | Oct 17 · Nov 1 · Nov 14 | 198 days | 100% |
| Hard freeze (28°F) | Mar 19 · Apr 3 · Apr 18 | Oct 31 · Nov 13 · Nov 30 | 224 days | 100% |
Planting calendar for Ocean Bluff
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 | Mar 15 – May 21 |
| Tomatoes | Transplant outdoors | May 1 – Jul 12 |
| Peppers | Start seeds indoors | Mar 15 – Apr 15 |
| Peppers | Transplant outdoors | May 15 – Jun 15 |
| Eggplant | Start seeds indoors | Apr 1 – Apr 30 |
| Eggplant | Transplant outdoors | May 15 – Jun 15 |
| Cucumbers | Sow outdoors | May 15 – Jul 22 |
| Summer squash | Sow outdoors | May 1 – Jun 15 |
| Winter squash & pumpkins | Sow outdoors | May 15 – Jun 15 |
| Snap beans | Sow outdoors | May 1 – Aug 14 |
| Sweet corn | Sow outdoors | May 1 – Jul 12 |
| Watermelon & cantaloupe | Sow outdoors | May 15 – Jun 15 |
| Okra | Sow outdoors | May 8 – May 31 |
| Peas | Sow outdoors (spring) | Mar 15 – Apr 30 |
| Potatoes | Plant outdoors (spring) | Mar 15 – May 15 |
| Onions | Start seeds indoors (spring) | Feb 1 – Feb 28 |
| Onions | Transplant outdoors (spring) | Apr 1 – Apr 30 |
| Broccoli | Start seeds indoors (spring) | Feb 25 – Mar 31 |
| Broccoli | Transplant outdoors (spring) | Apr 1 – Apr 30 |
| Broccoli | Start seeds indoors (fall) | Jul 2 – Jul 12 |
| Broccoli | Transplant outdoors (fall) | Aug 1 – Aug 12 |
| Cabbage | Start seeds indoors (spring) | Feb 15 – Mar 15 |
| Cabbage | Transplant outdoors (spring) | Mar 15 – Apr 15 |
| Cabbage | Start seeds indoors (fall) | Jun 22 – Jul 22 |
| Cabbage | Transplant outdoors (fall) | Jul 22 – Aug 22 |
| Leaf lettuce | Sow outdoors (spring) | Mar 15 – May 31 |
| Leaf lettuce | Sow outdoors (fall) | Jul 22 – Sep 7 |
| Spinach | Sow outdoors (spring) | Mar 8 – Apr 21 |
| Spinach | Sow outdoors (fall) | Aug 8 – Sep 12 |
| Radishes | Sow outdoors (spring) | Mar 15 – May 5 |
| Radishes | Sow outdoors (fall) | Jul 22 – Sep 22 |
| Kale | Sow outdoors (spring) | Apr 1 – Apr 21 |
| Kale | Sow outdoors (fall) | Jul 15 – Aug 22 |
| Carrots | Sow outdoors (spring) | Apr 15 – May 31 |
| Carrots | Sow outdoors (fall) | Jun 22 – Aug 7 |
| Garlic | Plant outdoors (fall) | Oct 22 – Nov 22 |
Where these dates come from
ZIP code 02065 is matched to the NOAA station Plymouth-Kingston, MA, 13.3 km away, at 45 ft elevation (22 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Plymouth-Kingston, MA (used) | 45 ft | Apr 15 | Nov 1 |
| Plymouth Muni Ap, MA | 149 ft | Apr 30 | Oct 16 |
| Hingham, MA | 35 ft | Apr 25 | Oct 22 |
| Bridgewater, MA | 40 ft | May 1 | Oct 9 |
Frost dates near Ocean Bluff
- Brant Rock, MA 02020 · last Apr 15, first Nov 1
- Green Harbor, MA 02041 · last Apr 15, first Nov 1
- Marshfield, MA 02050 · last Apr 15, first Nov 1
- Humarock, MA 02047 · last Apr 15, first Nov 1
- Duxbury, MA 02332 · last Apr 15, first Nov 1
- Marshfield Hills, MA 02051 · last Apr 25, first Oct 22
- North Marshfield, MA 02059 · last Apr 25, first Oct 22
- North Pembroke, MA 02358 · last Apr 15, first Nov 1
Frequently asked questions
- When is the last frost in Ocean Bluff, MA?
- For ZIP code 02065, the average last spring frost (32°F) is April 15, based on NOAA 1991-2020 climate normals for the Plymouth-Kingston, MA weather station. There is a 1-in-10 chance of a frost after April 28.
- When is the first frost in Ocean Bluff, MA?
- The average first fall frost (32°F) is November 1. There is a 1-in-10 chance of frost by October 17, so tender plants are at risk from that point on.
- How long is the growing season in 02065?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 198 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.