Hanna, IN frost dates
How Hanna compares
- In 8 years out of 10, the last spring frost in Hanna falls between April 15 and May 14, a 29-day window. The first fall frost falls between October 1 and October 27.
- The median last frost is 7 days later than the Indiana median of Apr 22.
- Its 167-day growing season is longer than 5% of the 733 Indiana places with a regular frost season (state median 182 days).
- The last frost is typical for zone 5b, where the median is May 1.
- The weather station records an average of 147 nights a year at or below 32°F.
- Compared with Gary, IN, 51 km away, the last frost here is 7 days later than there and the growing season is 21 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | April 15 |
| 50% (median) | April 29 |
| 10% (safe for tender plants) | May 14 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 1 |
| 50% (median) | October 13 |
| 90% (late) | October 27 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Hanna, IN
Hanna, IN frost dates — last frost Apr 29, first frost Oct 13, zone 5b. whenisthelastfrost.com
When to plant vegetables in Hanna, IN
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 4 – Feb 18 | Apr 1 – Apr 15 | — | — |
| Peppers | Feb 18 – Mar 4 | May 13 – May 27 | — | — |
| Eggplant | Feb 18 – Mar 4 | May 13 – May 27 | — | — |
| Tomatoes | Mar 4 – Mar 18 | May 6 – May 20 | — | — |
| Lettuce | Mar 4 – Mar 18 | Apr 8 – Apr 22 | Apr 1 – May 6 | Aug 18 – Sep 15 |
| Kale | Mar 4 – Mar 18 | Apr 1 – Apr 15 | Apr 1 – Apr 15 | Aug 4 – Aug 25 |
| Broccoli | Mar 4 – Mar 18 | Apr 15 – Apr 29 | — | Jul 7 – Jul 28 |
| Cabbage | Mar 4 – Mar 18 | Apr 8 – Apr 22 | — | Jul 7 – Jul 28 |
| Cauliflower | Mar 4 – Mar 18 | Apr 15 – Apr 29 | — | Jul 7 – Jul 28 |
| Okra | Mar 18 – Apr 1 | May 20 – Jun 3 | May 20 – Jun 3 | — |
| Basil | Mar 18 – Apr 1 | May 6 – May 20 | — | — |
| Peas | — | — | Mar 18 – Apr 8 | Jul 21 – Aug 11 |
| Spinach | — | — | Mar 18 – Apr 8 | Aug 18 – Sep 8 |
| Radishes | — | — | Mar 25 – May 6 | Sep 1 – Sep 22 |
| Cucumbers | Apr 1 – Apr 8 | May 13 – May 20 | May 6 – May 20 | Jul 28 – Aug 11 |
| Zucchini & Summer Squash | Apr 1 – Apr 8 | — | May 6 – May 20 | Aug 4 – Aug 18 |
| Winter Squash & Pumpkins | Apr 1 – Apr 8 | — | May 6 – May 20 | — |
| Melons & Watermelon | Apr 1 – Apr 8 | May 13 – May 27 | — | — |
| Carrots | — | — | Apr 8 – May 6 | Jul 21 – Aug 4 |
| Beets | — | — | Apr 8 – May 6 | Aug 4 – Aug 18 |
| Potatoes | — | — | Apr 8 – Apr 29 | — |
| Swiss Chard | — | — | Apr 15 – May 13 | Aug 4 – Aug 18 |
| Cilantro | — | — | Apr 15 – May 6 | Aug 18 – Sep 8 |
| Green Beans | — | — | May 6 – May 27 | Jul 28 – Aug 11 |
| Sweet Corn | — | — | May 6 – May 20 | — |
| Sweet Potatoes | — | May 13 – Jun 3 | — | — |
| Garlic | — | — | — | Sep 29 – Nov 3 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Wanatah 2 Wnw, IN weather station, 13 km away (elevation 735 ft (224 m)).
Frost dates near Hanna
- Union Mills Apr 29 · Oct 13
- Wanatah Apr 29 · Oct 13
- Kingsford Heights Apr 19 · Oct 27
- La Crosse Apr 29 · Oct 13
- Kingsbury Apr 19 · Oct 27
- Hamlet Apr 26 · Oct 19
- La Porte Apr 19 · Oct 27
- Westville Apr 29 · Oct 13
- Knox Apr 26 · Oct 19
- North Judson Apr 26 · Oct 19
Frequently asked questions
When is the last frost in Hanna, IN?
The median last spring frost in Hanna, IN is April 29. There is still about a 10% chance of frost after May 14, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Hanna, IN?
The median first fall frost is October 13, with about a 10% chance of frost before October 1.
How long is the growing season in Hanna, IN?
About 167 days between the median last spring frost and first fall frost.
What planting zone is Hanna, IN?
Hanna, IN is in USDA hardiness zone 5b.