Frost dates for 45874Ohio City, OH
The average last spring frost in Ohio City is April 21 and the average first fall frost is October 26, giving a typical growing season of about 187 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 21
- Average first fall frost
- Oct 26
- Growing season
- 187 days
Safer after May 6 (1-in-10 risk)
Possible by Oct 13 (1-in-10 risk)
Last frost typically in 171 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 17 · Apr 30 · May 15 | Oct 1 · Oct 14 · Oct 27 | 165 days | 100% |
| Frost / freeze (32°F) | Apr 7 · Apr 21 · May 6 | Oct 13 · Oct 26 · Nov 7 | 187 days | 100% |
| Hard freeze (28°F) | Mar 27 · Apr 9 · Apr 24 | Oct 23 · Nov 5 · Nov 20 | 209 days | 100% |
Planting calendar for Ohio City
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 21 – May 27 |
| Tomatoes | Transplant outdoors | May 7 – Jul 6 |
| Peppers | Start seeds indoors | Mar 21 – Apr 21 |
| Peppers | Transplant outdoors | May 21 – Jun 21 |
| Eggplant | Start seeds indoors | Apr 7 – May 6 |
| Eggplant | Transplant outdoors | May 21 – Jun 21 |
| Cucumbers | Sow outdoors | May 21 – Jul 16 |
| Summer squash | Sow outdoors | May 7 – Jun 21 |
| Winter squash & pumpkins | Sow outdoors | May 21 – Jun 21 |
| Snap beans | Sow outdoors | May 7 – Aug 8 |
| Sweet corn | Sow outdoors | May 7 – Jul 6 |
| Watermelon & cantaloupe | Sow outdoors | May 21 – Jun 21 |
| Okra | Sow outdoors | May 14 – Jun 6 |
| Peas | Sow outdoors (spring) | Mar 21 – May 6 |
| Potatoes | Plant outdoors (spring) | Mar 21 – May 21 |
| Onions | Start seeds indoors (spring) | Feb 7 – Mar 6 |
| Onions | Transplant outdoors (spring) | Apr 7 – May 6 |
| Broccoli | Start seeds indoors (spring) | Mar 3 – Apr 6 |
| Broccoli | Transplant outdoors (spring) | Apr 7 – May 6 |
| Broccoli | Start seeds indoors (fall) | Jun 26 – Jul 6 |
| Broccoli | Transplant outdoors (fall) | Jul 26 – Aug 6 |
| Cabbage | Start seeds indoors (spring) | Feb 21 – Mar 21 |
| Cabbage | Transplant outdoors (spring) | Mar 21 – Apr 21 |
| Cabbage | Start seeds indoors (fall) | Jun 16 – Jul 16 |
| Cabbage | Transplant outdoors (fall) | Jul 16 – Aug 16 |
| Leaf lettuce | Sow outdoors (spring) | Mar 21 – Jun 6 |
| Leaf lettuce | Sow outdoors (fall) | Jul 16 – Sep 1 |
| Spinach | Sow outdoors (spring) | Mar 14 – Apr 27 |
| Spinach | Sow outdoors (fall) | Aug 2 – Sep 6 |
| Radishes | Sow outdoors (spring) | Mar 21 – May 11 |
| Radishes | Sow outdoors (fall) | Jul 16 – Sep 16 |
| Kale | Sow outdoors (spring) | Apr 7 – Apr 27 |
| Kale | Sow outdoors (fall) | Jul 9 – Aug 16 |
| Carrots | Sow outdoors (spring) | Apr 21 – Jun 6 |
| Carrots | Sow outdoors (fall) | Jun 16 – Aug 1 |
| Garlic | Plant outdoors (fall) | Oct 16 – Nov 16 |
Where these dates come from
ZIP code 45874 is matched to the NOAA station Van Wert 1 S, OH, 10.5 km away, at 790 ft elevation (20 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Van Wert 1 S, OH (used) | 790 ft | Apr 21 | Oct 26 |
| Decatur 1 N, IN | 785 ft | Apr 23 | Oct 19 |
| Berne Wwtp, IN | 839 ft | Apr 23 | Oct 22 |
| Celina 3 Ne, OH | 866 ft | Apr 27 | Oct 19 |
Frost dates near Ohio City
- Wren, OH 45899 · last Apr 23, first Oct 19
- Willshire, OH 45898 · last Apr 23, first Oct 22
- Van Wert, OH 45891 · last Apr 21, first Oct 26
- Rockford, OH 45882 · last Apr 27, first Oct 19
- Pleasant Mills, IN 46780 · last Apr 23, first Oct 19
- Convoy, OH 45832 · last Apr 21, first Oct 26
- Monroe, IN 46772 · last Apr 23, first Oct 22
- Elgin, OH 45838 · last Apr 21, first Oct 26
Frequently asked questions
- When is the last frost in Ohio City, OH?
- For ZIP code 45874, the average last spring frost (32°F) is April 21, based on NOAA 1991-2020 climate normals for the Van Wert 1 S, OH weather station. There is a 1-in-10 chance of a frost after May 6.
- When is the first frost in Ohio City, OH?
- The average first fall frost (32°F) is October 26. There is a 1-in-10 chance of frost by October 13, so tender plants are at risk from that point on.
- How long is the growing season in 45874?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 187 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.