Frost dates for 45341Medway, OH
The average last spring frost in Medway is April 24 and the average first fall frost is October 17, giving a typical growing season of about 173 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 24
- Average first fall frost
- Oct 17
- Growing season
- 173 days
Safer after May 10 (1-in-10 risk)
Possible by Oct 4 (1-in-10 risk)
Last frost typically in 175 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 20 · May 4 · May 21 | Sep 23 · Oct 5 · Oct 17 | 153 days | 100% |
| Frost / freeze (32°F) | Apr 10 · Apr 24 · May 10 | Oct 4 · Oct 17 · Oct 29 | 173 days | 100% |
| Hard freeze (28°F) | Mar 31 · Apr 12 · Apr 28 | Oct 13 · Oct 27 · Nov 9 | 197 days | 100% |
Planting calendar for Medway
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 24 – May 30 |
| Tomatoes | Transplant outdoors | May 10 – Jun 27 |
| Peppers | Start seeds indoors | Mar 24 – Apr 24 |
| Peppers | Transplant outdoors | May 24 – Jun 24 |
| Eggplant | Start seeds indoors | Apr 10 – May 9 |
| Eggplant | Transplant outdoors | May 24 – Jun 24 |
| Cucumbers | Sow outdoors | May 24 – Jul 7 |
| Summer squash | Sow outdoors | May 10 – Jun 24 |
| Winter squash & pumpkins | Sow outdoors | May 24 – Jun 24 |
| Snap beans | Sow outdoors | May 10 – Jul 30 |
| Sweet corn | Sow outdoors | May 10 – Jun 27 |
| Watermelon & cantaloupe | Sow outdoors | May 24 – Jun 24 |
| Okra | Sow outdoors | May 17 – Jun 9 |
| Peas | Sow outdoors (spring) | Mar 24 – May 9 |
| Potatoes | Plant outdoors (spring) | Mar 24 – May 24 |
| Onions | Start seeds indoors (spring) | Feb 10 – Mar 9 |
| Onions | Transplant outdoors (spring) | Apr 10 – May 9 |
| Broccoli | Start seeds indoors (spring) | Mar 6 – Apr 9 |
| Broccoli | Transplant outdoors (spring) | Apr 10 – May 9 |
| Broccoli | Start seeds indoors (fall) | Jun 17 – Jun 27 |
| Broccoli | Transplant outdoors (fall) | Jul 17 – Jul 28 |
| Cabbage | Start seeds indoors (spring) | Feb 24 – Mar 24 |
| Cabbage | Transplant outdoors (spring) | Mar 24 – Apr 24 |
| Cabbage | Start seeds indoors (fall) | Jun 7 – Jul 7 |
| Cabbage | Transplant outdoors (fall) | Jul 7 – Aug 7 |
| Leaf lettuce | Sow outdoors (spring) | Mar 24 – Jun 9 |
| Leaf lettuce | Sow outdoors (fall) | Jul 7 – Aug 23 |
| Spinach | Sow outdoors (spring) | Mar 17 – Apr 30 |
| Spinach | Sow outdoors (fall) | Jul 24 – Aug 28 |
| Radishes | Sow outdoors (spring) | Mar 24 – May 14 |
| Radishes | Sow outdoors (fall) | Jul 7 – Sep 7 |
| Kale | Sow outdoors (spring) | Apr 10 – Apr 30 |
| Kale | Sow outdoors (fall) | Jun 30 – Aug 7 |
| Carrots | Sow outdoors (spring) | Apr 24 – Jun 9 |
| Carrots | Sow outdoors (fall) | Jun 7 – Jul 23 |
| Garlic | Plant outdoors (fall) | Oct 7 – Nov 7 |
Where these dates come from
ZIP code 45341 is matched to the NOAA station New Carlisle, OH, 5.9 km away, at 874 ft elevation (28 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| New Carlisle, OH (used) | 874 ft | Apr 24 | Oct 17 |
| Dayton Intl Ap, OH | 1,000 ft | Apr 16 | Oct 28 |
| Dayton Mcd, OH | 720 ft | Apr 18 | Oct 25 |
| Springfield Wtp, OH | 951 ft | Apr 25 | Oct 19 |
Frost dates near Medway
- New Carlisle, OH 45344 · last Apr 24, first Oct 17
- Enon, OH 45323 · last Apr 25, first Oct 19
- Dayton, OH 45433 · last Apr 18, first Oct 25
- Donnelsville, OH 45319 · last Apr 25, first Oct 19
- Fairborn, OH 45324 · last Apr 18, first Oct 25
- North Hampton, OH 45349 · last Apr 25, first Oct 19
- Tipp City, OH 45371 · last Apr 16, first Oct 28
- Yellow Springs, OH 45387 · last Apr 18, first Oct 24
Frequently asked questions
- When is the last frost in Medway, OH?
- For ZIP code 45341, the average last spring frost (32°F) is April 24, based on NOAA 1991-2020 climate normals for the New Carlisle, OH weather station. There is a 1-in-10 chance of a frost after May 10.
- When is the first frost in Medway, OH?
- The average first fall frost (32°F) is October 17. 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 45341?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 173 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.