Frost dates for 04853North Haven, ME
The average last spring frost in North Haven is May 7 and the average first fall frost is October 5, giving a typical growing season of about 151 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 7
- Average first fall frost
- Oct 5
- Growing season
- 151 days
Safer after May 21 (1-in-10 risk)
Possible by Sep 24 (1-in-10 risk)
Last frost typically in 187 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) | May 9 · May 21 · Jun 1 | Sep 15 · Sep 27 · Oct 8 | 128 days | 100% |
| Frost / freeze (32°F) | Apr 28 · May 7 · May 21 | Sep 24 · Oct 5 · Oct 20 | 151 days | 100% |
| Hard freeze (28°F) | Apr 13 · Apr 27 · May 6 | Oct 3 · Oct 19 · Nov 3 | 174 days | 100% |
Planting calendar for North Haven
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 | Apr 6 – Jun 12 |
| Tomatoes | Transplant outdoors | May 23 – Jun 15 |
| Peppers | Start seeds indoors | Apr 6 – May 7 |
| Peppers | Transplant outdoors | Jun 6 – Jul 7 |
| Eggplant | Start seeds indoors | Apr 23 – May 22 |
| Eggplant | Transplant outdoors | Jun 6 – Jul 7 |
| Cucumbers | Sow outdoors | Jun 6 – Jun 25 |
| Summer squash | Sow outdoors | May 23 – Jul 7 |
| Winter squash & pumpkins | Sow outdoors | Jun 6 – Jul 7 |
| Snap beans | Sow outdoors | May 23 – Jul 18 |
| Sweet corn | Sow outdoors | May 23 – Jun 15 |
| Watermelon & cantaloupe | Sow outdoors | Jun 6 – Jul 7 |
| Okra | Sow outdoors | May 30 – Jun 22 |
| Peas | Sow outdoors (spring) | Apr 6 – May 22 |
| Potatoes | Plant outdoors (spring) | Apr 6 – Jun 6 |
| Onions | Start seeds indoors (spring) | Feb 23 – Mar 22 |
| Onions | Transplant outdoors (spring) | Apr 23 – May 22 |
| Broccoli | Start seeds indoors (spring) | Mar 19 – Apr 22 |
| Broccoli | Transplant outdoors (spring) | Apr 23 – May 22 |
| Broccoli | Start seeds indoors (fall) | Jun 5 – Jun 15 |
| Broccoli | Transplant outdoors (fall) | Jul 5 – Jul 16 |
| Cabbage | Start seeds indoors (spring) | Mar 9 – Apr 6 |
| Cabbage | Transplant outdoors (spring) | Apr 6 – May 7 |
| Cabbage | Start seeds indoors (fall) | May 26 – Jun 25 |
| Cabbage | Transplant outdoors (fall) | Jun 25 – Jul 26 |
| Leaf lettuce | Sow outdoors (spring) | Apr 6 – Jun 22 |
| Leaf lettuce | Sow outdoors (fall) | Jun 25 – Aug 11 |
| Spinach | Sow outdoors (spring) | Mar 30 – May 13 |
| Spinach | Sow outdoors (fall) | Jul 12 – Aug 16 |
| Radishes | Sow outdoors (spring) | Apr 6 – May 27 |
| Radishes | Sow outdoors (fall) | Jun 25 – Aug 26 |
| Kale | Sow outdoors (spring) | Apr 23 – May 13 |
| Kale | Sow outdoors (fall) | Jun 18 – Jul 26 |
| Carrots | Sow outdoors (spring) | May 7 – Jun 22 |
| Carrots | Sow outdoors (fall) | May 26 – Jul 11 |
| Garlic | Plant outdoors (fall) | Sep 25 – Oct 26 |
Where these dates come from
ZIP code 04853 is matched to the NOAA station Belfast, ME, 29.6 km away, at 20 ft elevation (39 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Belfast, ME (used) | 20 ft | May 7 | Oct 5 |
| W Rockport 1 Nnw, ME | 361 ft | Apr 27 | Oct 19 |
| Tenants Harbor, ME | 21 ft | Apr 27 | Oct 25 |
| E Surry, ME | 105 ft | May 8 | Oct 9 |
Frost dates near North Haven
- Vinalhaven, ME 04863 · last Apr 27, first Oct 25
- Sunset, ME 04683 · last May 7, first Oct 5
- Stonington, ME 04681 · last May 7, first Oct 5
- Camden, ME 04843 · last Apr 27, first Oct 19
- Rockport, ME 04856 · last Apr 27, first Oct 19
- Islesboro, ME 04848 · last May 7, first Oct 5
- Owls Head, ME 04854 · last Apr 27, first Oct 25
- Rockland, ME 04841 · last Apr 27, first Oct 25
Frequently asked questions
- When is the last frost in North Haven, ME?
- For ZIP code 04853, the average last spring frost (32°F) is May 7, based on NOAA 1991-2020 climate normals for the Belfast, ME weather station. There is a 1-in-10 chance of a frost after May 21.
- When is the first frost in North Haven, ME?
- The average first fall frost (32°F) is October 5. There is a 1-in-10 chance of frost by September 24, so tender plants are at risk from that point on.
- How long is the growing season in 04853?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 151 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.