Frost dates for 44403Brookfield, OH
The average last spring frost in Brookfield is May 1 and the average first fall frost is October 17, giving a typical growing season of about 167 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 1
- Average first fall frost
- Oct 17
- Growing season
- 167 days
Safer after May 20 (1-in-10 risk)
Possible by Oct 1 (1-in-10 risk)
Last frost typically in 181 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 27 · May 16 · May 31 | Sep 22 · Oct 5 · Oct 20 | 143 days | 100% |
| Frost / freeze (32°F) | Apr 16 · May 1 · May 20 | Oct 1 · Oct 17 · Nov 1 | 167 days | 100% |
| Hard freeze (28°F) | Apr 5 · Apr 20 · May 7 | Oct 15 · Nov 1 · Nov 15 | 194 days | 100% |
Planting calendar for Brookfield
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 | Mar 31 – Jun 6 |
| Tomatoes | Transplant outdoors | May 17 – Jun 27 |
| Peppers | Start seeds indoors | Mar 31 – May 1 |
| Peppers | Transplant outdoors | May 31 – Jul 1 |
| Eggplant | Start seeds indoors | Apr 17 – May 16 |
| Eggplant | Transplant outdoors | May 31 – Jul 1 |
| Cucumbers | Sow outdoors | May 31 – Jul 7 |
| Summer squash | Sow outdoors | May 17 – Jul 1 |
| Winter squash & pumpkins | Sow outdoors | May 31 – Jul 1 |
| Snap beans | Sow outdoors | May 17 – Jul 30 |
| Sweet corn | Sow outdoors | May 17 – Jun 27 |
| Watermelon & cantaloupe | Sow outdoors | May 31 – Jul 1 |
| Okra | Sow outdoors | May 24 – Jun 16 |
| Peas | Sow outdoors (spring) | Mar 31 – May 16 |
| Potatoes | Plant outdoors (spring) | Mar 31 – May 31 |
| Onions | Start seeds indoors (spring) | Feb 17 – Mar 16 |
| Onions | Transplant outdoors (spring) | Apr 17 – May 16 |
| Broccoli | Start seeds indoors (spring) | Mar 13 – Apr 16 |
| Broccoli | Transplant outdoors (spring) | Apr 17 – May 16 |
| Broccoli | Start seeds indoors (fall) | Jun 17 – Jun 27 |
| Broccoli | Transplant outdoors (fall) | Jul 17 – Jul 28 |
| Cabbage | Start seeds indoors (spring) | Mar 3 – Mar 31 |
| Cabbage | Transplant outdoors (spring) | Mar 31 – May 1 |
| Cabbage | Start seeds indoors (fall) | Jun 7 – Jul 7 |
| Cabbage | Transplant outdoors (fall) | Jul 7 – Aug 7 |
| Leaf lettuce | Sow outdoors (spring) | Mar 31 – Jun 16 |
| Leaf lettuce | Sow outdoors (fall) | Jul 7 – Aug 23 |
| Spinach | Sow outdoors (spring) | Mar 24 – May 7 |
| Spinach | Sow outdoors (fall) | Jul 24 – Aug 28 |
| Radishes | Sow outdoors (spring) | Mar 31 – May 21 |
| Radishes | Sow outdoors (fall) | Jul 7 – Sep 7 |
| Kale | Sow outdoors (spring) | Apr 17 – May 7 |
| Kale | Sow outdoors (fall) | Jun 30 – Aug 7 |
| Carrots | Sow outdoors (spring) | May 1 – Jun 16 |
| Carrots | Sow outdoors (fall) | Jun 7 – Jul 23 |
| Garlic | Plant outdoors (fall) | Oct 7 – Nov 7 |
Where these dates come from
ZIP code 44403 is matched to the NOAA station Youngstown Rgnl Ap, OH, 8 km away, at 1,180 ft elevation (91 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Youngstown Rgnl Ap, OH (used) | 1,180 ft | May 1 | Oct 17 |
| Mosquito Creek Lake, OH | 910 ft | Apr 30 | Oct 23 |
| Warren 3 S, OH | 900 ft | May 8 | Oct 12 |
| Mercer, PA | 1,220 ft | May 15 | Oct 3 |
Frost dates near Brookfield
- Masury, OH 44438 · last May 8, first Oct 12
- Hartford, OH 44424 · last May 1, first Oct 17
- Sharon, PA 16146 · last May 1, first Oct 17
- Vienna, OH 44473 · last May 1, first Oct 17
- Farrell, PA 16121 · last May 1, first Oct 17
- Wheatland, PA 16161 · last Apr 30, first Oct 23
- Orangeville, OH 44453 · last May 4, first Oct 14
- Hubbard, OH 44425 · last May 8, first Oct 12
Frequently asked questions
- When is the last frost in Brookfield, OH?
- For ZIP code 44403, the average last spring frost (32°F) is May 1, based on NOAA 1991-2020 climate normals for the Youngstown Rgnl Ap, OH weather station. There is a 1-in-10 chance of a frost after May 20.
- When is the first frost in Brookfield, OH?
- The average first fall frost (32°F) is October 17. There is a 1-in-10 chance of frost by October 1, so tender plants are at risk from that point on.
- How long is the growing season in 44403?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 167 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.