Frost dates for 44003Andover, OH
The average last spring frost in Andover is May 10 and the average first fall frost is October 10, giving a typical growing season of about 154 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 10
- Average first fall frost
- Oct 10
- Growing season
- 154 days
Safer after May 27 (1-in-10 risk)
Possible by Sep 26 (1-in-10 risk)
Last frost typically in 190 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 7 · May 22 · Jun 6 | Sep 13 · Sep 29 · Oct 12 | 128 days | 100% |
| Frost / freeze (32°F) | Apr 25 · May 10 · May 27 | Sep 26 · Oct 10 · Oct 27 | 154 days | 100% |
| Hard freeze (28°F) | Apr 14 · Apr 28 · May 16 | Oct 8 · Oct 26 · Nov 11 | 179 days | 100% |
Planting calendar for Andover
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 9 – Jun 15 |
| Tomatoes | Transplant outdoors | May 26 – Jun 20 |
| Peppers | Start seeds indoors | Apr 9 – May 10 |
| Peppers | Transplant outdoors | Jun 9 – Jul 10 |
| Eggplant | Start seeds indoors | Apr 26 – May 25 |
| Eggplant | Transplant outdoors | Jun 9 – Jul 10 |
| Cucumbers | Sow outdoors | Jun 9 – Jun 30 |
| Summer squash | Sow outdoors | May 26 – Jul 10 |
| Winter squash & pumpkins | Sow outdoors | Jun 9 – Jul 10 |
| Snap beans | Sow outdoors | May 26 – Jul 23 |
| Sweet corn | Sow outdoors | May 26 – Jun 20 |
| Watermelon & cantaloupe | Sow outdoors | Jun 9 – Jul 10 |
| Okra | Sow outdoors | Jun 2 – Jun 25 |
| Peas | Sow outdoors (spring) | Apr 9 – May 25 |
| Potatoes | Plant outdoors (spring) | Apr 9 – Jun 9 |
| Onions | Start seeds indoors (spring) | Feb 26 – Mar 25 |
| Onions | Transplant outdoors (spring) | Apr 26 – May 25 |
| Broccoli | Start seeds indoors (spring) | Mar 22 – Apr 25 |
| Broccoli | Transplant outdoors (spring) | Apr 26 – May 25 |
| Broccoli | Start seeds indoors (fall) | Jun 10 – Jun 20 |
| Broccoli | Transplant outdoors (fall) | Jul 10 – Jul 21 |
| Cabbage | Start seeds indoors (spring) | Mar 12 – Apr 9 |
| Cabbage | Transplant outdoors (spring) | Apr 9 – May 10 |
| Cabbage | Start seeds indoors (fall) | May 31 – Jun 30 |
| Cabbage | Transplant outdoors (fall) | Jun 30 – Jul 31 |
| Leaf lettuce | Sow outdoors (spring) | Apr 9 – Jun 25 |
| Leaf lettuce | Sow outdoors (fall) | Jun 30 – Aug 16 |
| Spinach | Sow outdoors (spring) | Apr 2 – May 16 |
| Spinach | Sow outdoors (fall) | Jul 17 – Aug 21 |
| Radishes | Sow outdoors (spring) | Apr 9 – May 30 |
| Radishes | Sow outdoors (fall) | Jun 30 – Aug 31 |
| Kale | Sow outdoors (spring) | Apr 26 – May 16 |
| Kale | Sow outdoors (fall) | Jun 23 – Jul 31 |
| Carrots | Sow outdoors (spring) | May 10 – Jun 25 |
| Carrots | Sow outdoors (fall) | May 31 – Jul 16 |
| Garlic | Plant outdoors (fall) | Sep 30 – Oct 31 |
Where these dates come from
ZIP code 44003 is matched to the NOAA station Dorset, OH, 10.2 km away, at 980 ft elevation (103 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Dorset, OH (used) | 980 ft | May 10 | Oct 10 |
| Linesville 1 S, PA | 1,030 ft | Apr 30 | Oct 23 |
| Jamestown 2 Nw, PA | 1,040 ft | May 4 | Oct 14 |
| Ashtabula Co Ap, OH | 924 ft | May 2 | Oct 21 |
Frost dates near Andover
- Dorset, OH 44032 · last May 10, first Oct 10
- Williamsfield, OH 44093 · last May 4, first Oct 14
- Linesville, PA 16424 · last Apr 30, first Oct 23
- Pierpont, OH 44082 · last May 2, first Oct 21
- Hartstown, PA 16131 · last May 4, first Oct 14
- Jefferson, OH 44047 · last May 2, first Oct 21
- Kinsman, OH 44428 · last May 4, first Oct 14
- Adamsville, PA 16110 · last May 4, first Oct 14
Frequently asked questions
- When is the last frost in Andover, OH?
- For ZIP code 44003, the average last spring frost (32°F) is May 10, based on NOAA 1991-2020 climate normals for the Dorset, OH weather station. There is a 1-in-10 chance of a frost after May 27.
- When is the first frost in Andover, OH?
- The average first fall frost (32°F) is October 10. 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 44003?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 154 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.