Frost dates for 04479Sangerville, ME
The average last spring frost in Sangerville is May 6 and the average first fall frost is October 7, giving a typical growing season of about 153 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 6
- Average first fall frost
- Oct 7
- Growing season
- 153 days
Safer after May 20 (1-in-10 risk)
Possible by Sep 26 (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 20 · Jun 1 | Sep 15 · Sep 27 · Oct 8 | 129 days | 100% |
| Frost / freeze (32°F) | Apr 25 · May 6 · May 20 | Sep 26 · Oct 7 · Oct 23 | 153 days | 100% |
| Hard freeze (28°F) | Apr 12 · Apr 25 · May 7 | Oct 4 · Oct 19 · Nov 5 | 178 days | 100% |
Planting calendar for Sangerville
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 17 |
| 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 27 |
| Summer squash | Sow outdoors | May 22 – Jul 6 |
| Winter squash & pumpkins | Sow outdoors | Jun 5 – Jul 6 |
| Snap beans | Sow outdoors | May 22 – Jul 20 |
| Sweet corn | Sow outdoors | May 22 – Jun 17 |
| 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 7 – Jun 17 |
| Broccoli | Transplant outdoors (fall) | Jul 7 – Jul 18 |
| Cabbage | Start seeds indoors (spring) | Mar 8 – Apr 5 |
| Cabbage | Transplant outdoors (spring) | Apr 5 – May 6 |
| Cabbage | Start seeds indoors (fall) | May 28 – Jun 27 |
| Cabbage | Transplant outdoors (fall) | Jun 27 – Jul 28 |
| Leaf lettuce | Sow outdoors (spring) | Apr 5 – Jun 21 |
| Leaf lettuce | Sow outdoors (fall) | Jun 27 – Aug 13 |
| Spinach | Sow outdoors (spring) | Mar 29 – May 12 |
| Spinach | Sow outdoors (fall) | Jul 14 – Aug 18 |
| Radishes | Sow outdoors (spring) | Apr 5 – May 26 |
| Radishes | Sow outdoors (fall) | Jun 27 – Aug 28 |
| Kale | Sow outdoors (spring) | Apr 22 – May 12 |
| Kale | Sow outdoors (fall) | Jun 20 – Jul 28 |
| Carrots | Sow outdoors (spring) | May 6 – Jun 21 |
| Carrots | Sow outdoors (fall) | May 28 – Jul 13 |
| Garlic | Plant outdoors (fall) | Sep 27 – Oct 28 |
Where these dates come from
ZIP code 04479 is matched to the NOAA station E Sangerville, ME, 3.3 km away, at 635 ft elevation (15 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| E Sangerville, ME (used) | 635 ft | May 6 | Oct 7 |
| Dover-Foxcroft Wwtp, ME | 370 ft | May 15 | Sep 28 |
| Sebec Lake, ME | 380 ft | May 16 | Oct 1 |
| Barnard, ME | 545 ft | May 12 | Oct 1 |
Frost dates near Sangerville
- Guilford, ME 04443 · last May 15, first Sep 28
- Dover Foxcroft, ME 04426 · last May 15, first Sep 28
- Cambridge, ME 04923 · last May 6, first Oct 7
- Dexter, ME 04930 · last May 8, first Oct 3
- Garland, ME 04939 · last May 8, first Oct 3
- Charleston, ME 04422 · last May 15, first Sep 28
- Sebec, ME 04481 · last May 12, first Oct 1
- Monson, ME 04464 · last May 12, first Oct 1
Frequently asked questions
- When is the last frost in Sangerville, ME?
- For ZIP code 04479, the average last spring frost (32°F) is May 6, based on NOAA 1991-2020 climate normals for the E Sangerville, ME weather station. There is a 1-in-10 chance of a frost after May 20.
- When is the first frost in Sangerville, ME?
- The average first fall frost (32°F) is October 7. There is a 1-in-10 chance of frost by September 26, so tender plants are at risk from that point on.
- How long is the growing season in 04479?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 153 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.