Frost dates for 04772Saint Agatha, ME
The average last spring frost in Saint Agatha is May 6 and the average first fall frost is October 2, giving a typical growing season of about 147 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 6
- Average first fall frost
- Oct 2
- Growing season
- 147 days
Safer after May 21 (1-in-10 risk)
Possible by Sep 18 (1-in-10 risk)
Last frost typically in 186 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 6 · May 22 · Jun 6 | Sep 8 · Sep 22 · Oct 5 | 122 days | 100% |
| Frost / freeze (32°F) | Apr 25 · May 6 · May 21 | Sep 18 · Oct 2 · Oct 17 | 147 days | 100% |
| Hard freeze (28°F) | Apr 13 · Apr 27 · May 7 | Sep 30 · Oct 17 · Nov 1 | 172 days | 100% |
Planting calendar for Saint Agatha
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 5 – Jun 11 |
| Tomatoes | Transplant outdoors | May 22 – Jun 12 |
| Peppers | Start seeds indoors | Apr 5 – May 6 |
| Peppers | Transplant outdoors | Jun 5 – Jul 6 |
| Eggplant | Start seeds indoors | Apr 22 – May 21 |
| Eggplant | Transplant outdoors | Jun 5 – Jul 6 |
| Cucumbers | Sow outdoors | Jun 5 – Jun 22 |
| Summer squash | Sow outdoors | May 22 – Jul 6 |
| Winter squash & pumpkins | Sow outdoors | Jun 5 – Jul 6 |
| Snap beans | Sow outdoors | May 22 – Jul 15 |
| Sweet corn | Sow outdoors | May 22 – Jun 12 |
| Watermelon & cantaloupe | Sow outdoors | Jun 5 – Jul 6 |
| Okra | Sow outdoors | May 29 – Jun 21 |
| Peas | Sow outdoors (spring) | Apr 5 – May 21 |
| Potatoes | Plant outdoors (spring) | Apr 5 – Jun 5 |
| Onions | Start seeds indoors (spring) | Feb 22 – Mar 21 |
| Onions | Transplant outdoors (spring) | Apr 22 – May 21 |
| Broccoli | Start seeds indoors (spring) | Mar 18 – Apr 21 |
| Broccoli | Transplant outdoors (spring) | Apr 22 – May 21 |
| Broccoli | Start seeds indoors (fall) | Jun 2 – Jun 12 |
| Broccoli | Transplant outdoors (fall) | Jul 2 – Jul 13 |
| Cabbage | Start seeds indoors (spring) | Mar 8 – Apr 5 |
| Cabbage | Transplant outdoors (spring) | Apr 5 – May 6 |
| Cabbage | Start seeds indoors (fall) | May 23 – Jun 22 |
| Cabbage | Transplant outdoors (fall) | Jun 22 – Jul 23 |
| Leaf lettuce | Sow outdoors (spring) | Apr 5 – Jun 21 |
| Leaf lettuce | Sow outdoors (fall) | Jun 22 – Aug 8 |
| Spinach | Sow outdoors (spring) | Mar 29 – May 12 |
| Spinach | Sow outdoors (fall) | Jul 9 – Aug 13 |
| Radishes | Sow outdoors (spring) | Apr 5 – May 26 |
| Radishes | Sow outdoors (fall) | Jun 22 – Aug 23 |
| Kale | Sow outdoors (spring) | Apr 22 – May 12 |
| Kale | Sow outdoors (fall) | Jun 15 – Jul 23 |
| Carrots | Sow outdoors (spring) | May 6 – Jun 21 |
| Carrots | Sow outdoors (fall) | May 23 – Jul 8 |
| Garlic | Plant outdoors (fall) | Sep 22 – Oct 23 |
Where these dates come from
ZIP code 04772 is matched to the NOAA station Frenchville Aroostook Ap, ME, 5.3 km away, at 988 ft elevation (148 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Frenchville Aroostook Ap, ME (used) | 988 ft | May 6 | Oct 2 |
| Ft Kent, ME | 610 ft | May 23 | Sep 24 |
| Van Buren 2, ME | 456 ft | May 23 | Sep 26 |
| Limestone 4 Nnw, ME | 737 ft | May 16 | Sep 24 |
Frost dates near Saint Agatha
- Frenchville, ME 04745 · last May 23, first Sep 24
- Madawaska, ME 04756 · last May 6, first Oct 2
- Saint David, ME 04773 · last May 6, first Oct 2
- Sinclair, ME 04779 · last May 23, first Sep 24
- Grand Isle, ME 04746 · last May 23, first Sep 26
- Fort Kent Mills, ME 04744 · last May 23, first Sep 24
- Fort Kent, ME 04743 · last May 23, first Sep 24
- Wallagrass, ME 04781 · last May 23, first Sep 24
Frequently asked questions
- When is the last frost in Saint Agatha, ME?
- For ZIP code 04772, the average last spring frost (32°F) is May 6, based on NOAA 1991-2020 climate normals for the Frenchville Aroostook Ap, ME weather station. There is a 1-in-10 chance of a frost after May 21.
- When is the first frost in Saint Agatha, ME?
- The average first fall frost (32°F) is October 2. There is a 1-in-10 chance of frost by September 18, so tender plants are at risk from that point on.
- How long is the growing season in 04772?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 147 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.