Frost dates for 47528Edwardsport, IN
The average last spring frost in Edwardsport is April 9 and the average first fall frost is October 30, giving a typical growing season of about 202 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 9
- Average first fall frost
- Oct 30
- Growing season
- 202 days
Safer after Apr 24 (1-in-10 risk)
Possible by Oct 17 (1-in-10 risk)
Last frost typically in 158 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 6 · Apr 20 · May 5 | Oct 6 · Oct 20 · Nov 1 | 180 days | 100% |
| Frost / freeze (32°F) | Mar 25 · Apr 9 · Apr 24 | Oct 17 · Oct 30 · Nov 11 | 202 days | 100% |
| Hard freeze (28°F) | Mar 12 · Mar 30 · Apr 14 | Oct 26 · Nov 8 · Nov 26 | 223 days | 100% |
Planting calendar for Edwardsport
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 9 – May 15 |
| Tomatoes | Transplant outdoors | Apr 25 – Jul 10 |
| Peppers | Start seeds indoors | Mar 9 – Apr 9 |
| Peppers | Transplant outdoors | May 9 – Jun 9 |
| Eggplant | Start seeds indoors | Mar 26 – Apr 24 |
| Eggplant | Transplant outdoors | May 9 – Jun 9 |
| Cucumbers | Sow outdoors | May 9 – Jul 20 |
| Summer squash | Sow outdoors | Apr 25 – Jun 9 |
| Winter squash & pumpkins | Sow outdoors | May 9 – Jun 9 |
| Snap beans | Sow outdoors | Apr 25 – Aug 12 |
| Sweet corn | Sow outdoors | Apr 25 – Jul 10 |
| Watermelon & cantaloupe | Sow outdoors | May 9 – Jun 9 |
| Okra | Sow outdoors | May 2 – May 25 |
| Peas | Sow outdoors (spring) | Mar 9 – Apr 24 |
| Potatoes | Plant outdoors (spring) | Mar 9 – May 9 |
| Onions | Start seeds indoors (spring) | Jan 26 – Feb 22 |
| Onions | Transplant outdoors (spring) | Mar 26 – Apr 24 |
| Broccoli | Start seeds indoors (spring) | Feb 19 – Mar 25 |
| Broccoli | Transplant outdoors (spring) | Mar 26 – Apr 24 |
| Broccoli | Start seeds indoors (fall) | Jun 30 – Jul 10 |
| Broccoli | Transplant outdoors (fall) | Jul 30 – Aug 10 |
| Cabbage | Start seeds indoors (spring) | Feb 9 – Mar 9 |
| Cabbage | Transplant outdoors (spring) | Mar 9 – Apr 9 |
| Cabbage | Start seeds indoors (fall) | Jun 20 – Jul 20 |
| Cabbage | Transplant outdoors (fall) | Jul 20 – Aug 20 |
| Leaf lettuce | Sow outdoors (spring) | Mar 9 – May 25 |
| Leaf lettuce | Sow outdoors (fall) | Jul 20 – Sep 5 |
| Spinach | Sow outdoors (spring) | Mar 2 – Apr 15 |
| Spinach | Sow outdoors (fall) | Aug 6 – Sep 10 |
| Radishes | Sow outdoors (spring) | Mar 9 – Apr 29 |
| Radishes | Sow outdoors (fall) | Jul 20 – Sep 20 |
| Kale | Sow outdoors (spring) | Mar 26 – Apr 15 |
| Kale | Sow outdoors (fall) | Jul 13 – Aug 20 |
| Carrots | Sow outdoors (spring) | Apr 9 – May 25 |
| Carrots | Sow outdoors (fall) | Jun 20 – Aug 5 |
| Garlic | Plant outdoors (fall) | Oct 20 – Nov 20 |
Where these dates come from
ZIP code 47528 is matched to the NOAA station Freelandville, IN, 8 km away, at 550 ft elevation (35 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Freelandville, IN (used) | 550 ft | Apr 9 | Oct 30 |
| Elnora, IN | 480 ft | Apr 9 | Oct 25 |
| Washington 1 W, IN | 482 ft | Apr 10 | Oct 25 |
| Vincennes 5 Ne, IN | 452 ft | Apr 11 | Oct 26 |
Frost dates near Edwardsport
- Westphalia, IN 47596 · last Apr 9, first Oct 30
- Bicknell, IN 47512 · last Apr 9, first Oct 30
- Freelandville, IN 47535 · last Apr 9, first Oct 30
- Plainville, IN 47568 · last Apr 10, first Oct 25
- Sandborn, IN 47578 · last Apr 9, first Oct 30
- Ragsdale, IN 47573 · last Apr 9, first Oct 30
- Oaktown, IN 47561 · last Apr 9, first Oct 30
- Elnora, IN 47529 · last Apr 9, first Oct 25
Frequently asked questions
- When is the last frost in Edwardsport, IN?
- For ZIP code 47528, the average last spring frost (32°F) is April 9, based on NOAA 1991-2020 climate normals for the Freelandville, IN weather station. There is a 1-in-10 chance of a frost after April 24.
- When is the first frost in Edwardsport, IN?
- The average first fall frost (32°F) is October 30. There is a 1-in-10 chance of frost by October 17, so tender plants are at risk from that point on.
- How long is the growing season in 47528?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 202 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.