Frost dates for 44030Conneaut, OH
The average last spring frost in Conneaut is May 2 and the average first fall frost is October 21, giving a typical growing season of about 171 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 2
- Average first fall frost
- Oct 21
- Growing season
- 171 days
Safer after May 20 (1-in-10 risk)
Possible by Oct 4 (1-in-10 risk)
Last frost typically in 180 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 28 · May 14 · May 30 | Sep 25 · Oct 7 · Oct 24 | 145 days | 100% |
| Frost / freeze (32°F) | Apr 18 · May 2 · May 20 | Oct 4 · Oct 21 · Nov 5 | 171 days | 100% |
| Hard freeze (28°F) | Apr 5 · Apr 21 · May 6 | Oct 18 · Nov 3 · Nov 19 | 198 days | 100% |
Planting calendar for Conneaut
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 1 – Jun 7 |
| Tomatoes | Transplant outdoors | May 18 – Jul 1 |
| Peppers | Start seeds indoors | Apr 1 – May 2 |
| Peppers | Transplant outdoors | Jun 1 – Jul 2 |
| Eggplant | Start seeds indoors | Apr 18 – May 17 |
| Eggplant | Transplant outdoors | Jun 1 – Jul 2 |
| Cucumbers | Sow outdoors | Jun 1 – Jul 11 |
| Summer squash | Sow outdoors | May 18 – Jul 2 |
| Winter squash & pumpkins | Sow outdoors | Jun 1 – Jul 2 |
| Snap beans | Sow outdoors | May 18 – Aug 3 |
| Sweet corn | Sow outdoors | May 18 – Jul 1 |
| Watermelon & cantaloupe | Sow outdoors | Jun 1 – Jul 2 |
| Okra | Sow outdoors | May 25 – Jun 17 |
| Peas | Sow outdoors (spring) | Apr 1 – May 17 |
| Potatoes | Plant outdoors (spring) | Apr 1 – Jun 1 |
| Onions | Start seeds indoors (spring) | Feb 18 – Mar 17 |
| Onions | Transplant outdoors (spring) | Apr 18 – May 17 |
| Broccoli | Start seeds indoors (spring) | Mar 14 – Apr 17 |
| Broccoli | Transplant outdoors (spring) | Apr 18 – May 17 |
| Broccoli | Start seeds indoors (fall) | Jun 21 – Jul 1 |
| Broccoli | Transplant outdoors (fall) | Jul 21 – Aug 1 |
| Cabbage | Start seeds indoors (spring) | Mar 4 – Apr 1 |
| Cabbage | Transplant outdoors (spring) | Apr 1 – May 2 |
| Cabbage | Start seeds indoors (fall) | Jun 11 – Jul 11 |
| Cabbage | Transplant outdoors (fall) | Jul 11 – Aug 11 |
| Leaf lettuce | Sow outdoors (spring) | Apr 1 – Jun 17 |
| Leaf lettuce | Sow outdoors (fall) | Jul 11 – Aug 27 |
| Spinach | Sow outdoors (spring) | Mar 25 – May 8 |
| Spinach | Sow outdoors (fall) | Jul 28 – Sep 1 |
| Radishes | Sow outdoors (spring) | Apr 1 – May 22 |
| Radishes | Sow outdoors (fall) | Jul 11 – Sep 11 |
| Kale | Sow outdoors (spring) | Apr 18 – May 8 |
| Kale | Sow outdoors (fall) | Jul 4 – Aug 11 |
| Carrots | Sow outdoors (spring) | May 2 – Jun 17 |
| Carrots | Sow outdoors (fall) | Jun 11 – Jul 27 |
| Garlic | Plant outdoors (fall) | Oct 11 – Nov 11 |
Where these dates come from
ZIP code 44030 is matched to the NOAA station Ashtabula Co Ap, OH, 19.8 km away, at 924 ft elevation (320 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Ashtabula Co Ap, OH (used) | 924 ft | May 2 | Oct 21 |
| Springboro 3 Wnw, PA | 1,005 ft | May 8 | Oct 16 |
| Dorset, OH | 980 ft | May 10 | Oct 10 |
| Linesville 1 S, PA | 1,030 ft | Apr 30 | Oct 23 |
Frost dates near Conneaut
- North Kingsville, OH 44068 · last May 2, first Oct 21
- Kingsville, OH 44048 · last May 2, first Oct 21
- West Springfield, PA 16443 · last May 8, first Oct 16
- East Springfield, PA 16411 · last Apr 26, first Nov 4
- North Springfield, PA 16430 · last Apr 26, first Nov 4
- Albion, PA 16475 · last May 8, first Oct 16
- Pierpont, OH 44082 · last May 2, first Oct 21
- Ashtabula, OH 44005 · last May 2, first Oct 21
Frequently asked questions
- When is the last frost in Conneaut, OH?
- For ZIP code 44030, the average last spring frost (32°F) is May 2, based on NOAA 1991-2020 climate normals for the Ashtabula Co Ap, OH weather station. There is a 1-in-10 chance of a frost after May 20.
- When is the first frost in Conneaut, OH?
- The average first fall frost (32°F) is October 21. There is a 1-in-10 chance of frost by October 4, so tender plants are at risk from that point on.
- How long is the growing season in 44030?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 171 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.