Whiting, IN frost dates
Last spring frostApr 10median date
First fall frostNov 5median date
Growing season209 daysfrost-free
Hardiness zone6aZone 6a
How Whiting compares
- In 8 years out of 10, the last spring frost in Whiting falls between March 29 and April 25, a 27-day window. The first fall frost falls between October 24 and November 20.
- The median last frost is 12 days earlier than the Indiana median of Apr 22.
- Its 209-day growing season is longer than 96% of the 733 Indiana places with a regular frost season (state median 182 days).
- The last frost is 19 days earlier than the zone 6a median of Apr 29. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6a chart.
- The weather station records an average of 97 nights a year at or below 32°F.
- Compared with Hammond, IN, 12 km away, the last frost here is 13 days earlier than there and the growing season is 29 days longer.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 29 |
| 50% (median) | April 10 |
| 10% (safe for tender plants) | April 25 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 24 |
| 50% (median) | November 5 |
| 90% (late) | November 20 |
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 Whiting, IN
Whiting, IN frost dates — last frost Apr 10, first frost Nov 5, zone 6a. whenisthelastfrost.com
Crop
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Start indoors: Jan 16 to Jan 30Transplant outside: Mar 13 to Mar 27
Start indoors: Jan 30 to Feb 13Transplant outside: Apr 24 to May 8
Start indoors: Jan 30 to Feb 13Transplant outside: Apr 24 to May 8
Start indoors: Feb 13 to Feb 27Transplant outside: Apr 17 to May 1
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 20 to Apr 3Sow outdoors: Mar 13 to Apr 17Plant for fall: Sep 10 to Oct 8
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 13 to Mar 27Sow outdoors: Mar 13 to Mar 27Plant for fall: Aug 27 to Sep 17
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 27 to Apr 10Plant for fall: Jul 30 to Aug 20
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 20 to Apr 3Plant for fall: Jul 30 to Aug 20
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 27 to Apr 10Plant for fall: Jul 30 to Aug 20
Start indoors: Feb 27 to Mar 13Transplant outside: May 1 to May 15Sow outdoors: May 1 to May 15
Start indoors: Feb 27 to Mar 13Transplant outside: Apr 17 to May 1
Sow outdoors: Feb 27 to Mar 20Plant for fall: Aug 13 to Sep 3
Sow outdoors: Feb 27 to Mar 20Plant for fall: Sep 10 to Oct 1
Sow outdoors: Mar 6 to Apr 17Plant for fall: Sep 24 to Oct 15
Start indoors: Mar 13 to Mar 20Transplant outside: Apr 24 to May 1Sow outdoors: Apr 17 to May 1Plant for fall: Aug 20 to Sep 3
Start indoors: Mar 13 to Mar 20Sow outdoors: Apr 17 to May 1Plant for fall: Aug 27 to Sep 10
Start indoors: Mar 13 to Mar 20Sow outdoors: Apr 17 to May 1
Start indoors: Mar 13 to Mar 20Transplant outside: Apr 24 to May 8
Sow outdoors: Mar 20 to Apr 17Plant for fall: Aug 13 to Aug 27
Sow outdoors: Mar 20 to Apr 17Plant for fall: Aug 27 to Sep 10
Sow outdoors: Mar 20 to Apr 10
Sow outdoors: Mar 27 to Apr 24Plant for fall: Aug 27 to Sep 10
Sow outdoors: Mar 27 to Apr 17Plant for fall: Sep 10 to Oct 1
Sow outdoors: Apr 17 to May 8Plant for fall: Aug 20 to Sep 3
Sow outdoors: Apr 17 to May 1
Transplant outside: Apr 24 to May 15
Plant for fall: Oct 22 to Nov 26
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Whiting, IN
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 16 – Jan 30 | Mar 13 – Mar 27 | — | — |
| Peppers | Jan 30 – Feb 13 | Apr 24 – May 8 | — | — |
| Eggplant | Jan 30 – Feb 13 | Apr 24 – May 8 | — | — |
| Tomatoes | Feb 13 – Feb 27 | Apr 17 – May 1 | — | — |
| Lettuce | Feb 13 – Feb 27 | Mar 20 – Apr 3 | Mar 13 – Apr 17 | Sep 10 – Oct 8 |
| Kale | Feb 13 – Feb 27 | Mar 13 – Mar 27 | Mar 13 – Mar 27 | Aug 27 – Sep 17 |
| Broccoli | Feb 13 – Feb 27 | Mar 27 – Apr 10 | — | Jul 30 – Aug 20 |
| Cabbage | Feb 13 – Feb 27 | Mar 20 – Apr 3 | — | Jul 30 – Aug 20 |
| Cauliflower | Feb 13 – Feb 27 | Mar 27 – Apr 10 | — | Jul 30 – Aug 20 |
| Okra | Feb 27 – Mar 13 | May 1 – May 15 | May 1 – May 15 | — |
| Basil | Feb 27 – Mar 13 | Apr 17 – May 1 | — | — |
| Peas | — | — | Feb 27 – Mar 20 | Aug 13 – Sep 3 |
| Spinach | — | — | Feb 27 – Mar 20 | Sep 10 – Oct 1 |
| Radishes | — | — | Mar 6 – Apr 17 | Sep 24 – Oct 15 |
| Cucumbers | Mar 13 – Mar 20 | Apr 24 – May 1 | Apr 17 – May 1 | Aug 20 – Sep 3 |
| Zucchini & Summer Squash | Mar 13 – Mar 20 | — | Apr 17 – May 1 | Aug 27 – Sep 10 |
| Winter Squash & Pumpkins | Mar 13 – Mar 20 | — | Apr 17 – May 1 | — |
| Melons & Watermelon | Mar 13 – Mar 20 | Apr 24 – May 8 | — | — |
| Carrots | — | — | Mar 20 – Apr 17 | Aug 13 – Aug 27 |
| Beets | — | — | Mar 20 – Apr 17 | Aug 27 – Sep 10 |
| Potatoes | — | — | Mar 20 – Apr 10 | — |
| Swiss Chard | — | — | Mar 27 – Apr 24 | Aug 27 – Sep 10 |
| Cilantro | — | — | Mar 27 – Apr 17 | Sep 10 – Oct 1 |
| Green Beans | — | — | Apr 17 – May 8 | Aug 20 – Sep 3 |
| Sweet Corn | — | — | Apr 17 – May 1 | — |
| Sweet Potatoes | — | Apr 24 – May 15 | — | — |
| Garlic | — | — | — | Oct 22 – Nov 26 |
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 Chicago Northerly Is, IL weather station, 22 km away (elevation 584 ft (178 m)).
Frost dates near Whiting
- East Chicago Apr 23 · Oct 20
- Hammond Apr 23 · Oct 20
- Munster Apr 23 · Oct 20
- Highland Apr 23 · Oct 20
- Gary Apr 22 · Oct 27
- Griffith Apr 23 · Oct 20
- Dyer Apr 23 · Oct 20
- Schererville Apr 23 · Oct 20
- Lake Station Apr 22 · Oct 27
- Merrillville Apr 29 · Oct 16
Frequently asked questions
When is the last frost in Whiting, IN?
The median last spring frost in Whiting, IN is April 10. There is still about a 10% chance of frost after April 25, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Whiting, IN?
The median first fall frost is November 5, with about a 10% chance of frost before October 24.
How long is the growing season in Whiting, IN?
About 209 days between the median last spring frost and first fall frost.
What planting zone is Whiting, IN?
Whiting, IN is in USDA hardiness zone 6a.