Cisne, IL frost dates
Last spring frostApr 7median date
First fall frostOct 26median date
Growing season202 daysfrost-free
Hardiness zone6bZone 6b
How Cisne compares
- In 8 years out of 10, the last spring frost in Cisne falls between March 23 and April 23, a 31-day window. The first fall frost falls between October 14 and November 9.
- The median last frost is 10 days earlier than the Illinois median of Apr 17.
- Its 202-day growing season is longer than 85% of the 1,287 Illinois places with a regular frost season (state median 187 days).
- The last frost is 15 days earlier than the zone 6b median of Apr 22. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6b chart.
- The weather station records an average of 99 nights a year at or below 32°F.
- Compared with Evansville, IN, 95 km away, the last frost here is 9 days later than there and the growing season is 24 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 23 |
| 50% (median) | April 7 |
| 10% (safe for tender plants) | April 23 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 14 |
| 50% (median) | October 26 |
| 90% (late) | November 9 |
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 Cisne, IL
Cisne, IL frost dates — last frost Apr 7, first frost Oct 26, zone 6b. whenisthelastfrost.com
Crop
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Start indoors: Jan 13 to Jan 27Transplant outside: Mar 10 to Mar 24
Start indoors: Jan 27 to Feb 10Transplant outside: Apr 21 to May 5
Start indoors: Jan 27 to Feb 10Transplant outside: Apr 21 to May 5
Start indoors: Feb 10 to Feb 24Transplant outside: Apr 14 to Apr 28
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 17 to Mar 31Sow outdoors: Mar 10 to Apr 14Plant for fall: Aug 31 to Sep 28
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 10 to Mar 24Sow outdoors: Mar 10 to Mar 24Plant for fall: Aug 17 to Sep 7
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 24 to Apr 7Plant for fall: Jul 20 to Aug 10
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 17 to Mar 31Plant for fall: Jul 20 to Aug 10
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 24 to Apr 7Plant for fall: Jul 20 to Aug 10
Start indoors: Feb 24 to Mar 10Transplant outside: Apr 28 to May 12Sow outdoors: Apr 28 to May 12
Start indoors: Feb 24 to Mar 10Transplant outside: Apr 14 to Apr 28
Sow outdoors: Feb 24 to Mar 17Plant for fall: Aug 3 to Aug 24
Sow outdoors: Feb 24 to Mar 17Plant for fall: Aug 31 to Sep 21
Sow outdoors: Mar 3 to Apr 14Plant for fall: Sep 14 to Oct 5
Start indoors: Mar 10 to Mar 17Transplant outside: Apr 21 to Apr 28Sow outdoors: Apr 14 to Apr 28Plant for fall: Aug 10 to Aug 24
Start indoors: Mar 10 to Mar 17Sow outdoors: Apr 14 to Apr 28Plant for fall: Aug 17 to Aug 31
Start indoors: Mar 10 to Mar 17Sow outdoors: Apr 14 to Apr 28
Start indoors: Mar 10 to Mar 17Transplant outside: Apr 21 to May 5
Sow outdoors: Mar 17 to Apr 14Plant for fall: Aug 3 to Aug 17
Sow outdoors: Mar 17 to Apr 14Plant for fall: Aug 17 to Aug 31
Sow outdoors: Mar 17 to Apr 7
Sow outdoors: Mar 24 to Apr 21Plant for fall: Aug 17 to Aug 31
Sow outdoors: Mar 24 to Apr 14Plant for fall: Aug 31 to Sep 21
Sow outdoors: Apr 14 to May 5Plant for fall: Aug 10 to Aug 24
Sow outdoors: Apr 14 to Apr 28
Transplant outside: Apr 21 to May 12
Plant for fall: Oct 12 to Nov 16
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Cisne, IL
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 13 – Jan 27 | Mar 10 – Mar 24 | — | — |
| Peppers | Jan 27 – Feb 10 | Apr 21 – May 5 | — | — |
| Eggplant | Jan 27 – Feb 10 | Apr 21 – May 5 | — | — |
| Tomatoes | Feb 10 – Feb 24 | Apr 14 – Apr 28 | — | — |
| Lettuce | Feb 10 – Feb 24 | Mar 17 – Mar 31 | Mar 10 – Apr 14 | Aug 31 – Sep 28 |
| Kale | Feb 10 – Feb 24 | Mar 10 – Mar 24 | Mar 10 – Mar 24 | Aug 17 – Sep 7 |
| Broccoli | Feb 10 – Feb 24 | Mar 24 – Apr 7 | — | Jul 20 – Aug 10 |
| Cabbage | Feb 10 – Feb 24 | Mar 17 – Mar 31 | — | Jul 20 – Aug 10 |
| Cauliflower | Feb 10 – Feb 24 | Mar 24 – Apr 7 | — | Jul 20 – Aug 10 |
| Okra | Feb 24 – Mar 10 | Apr 28 – May 12 | Apr 28 – May 12 | — |
| Basil | Feb 24 – Mar 10 | Apr 14 – Apr 28 | — | — |
| Peas | — | — | Feb 24 – Mar 17 | Aug 3 – Aug 24 |
| Spinach | — | — | Feb 24 – Mar 17 | Aug 31 – Sep 21 |
| Radishes | — | — | Mar 3 – Apr 14 | Sep 14 – Oct 5 |
| Cucumbers | Mar 10 – Mar 17 | Apr 21 – Apr 28 | Apr 14 – Apr 28 | Aug 10 – Aug 24 |
| Zucchini & Summer Squash | Mar 10 – Mar 17 | — | Apr 14 – Apr 28 | Aug 17 – Aug 31 |
| Winter Squash & Pumpkins | Mar 10 – Mar 17 | — | Apr 14 – Apr 28 | — |
| Melons & Watermelon | Mar 10 – Mar 17 | Apr 21 – May 5 | — | — |
| Carrots | — | — | Mar 17 – Apr 14 | Aug 3 – Aug 17 |
| Beets | — | — | Mar 17 – Apr 14 | Aug 17 – Aug 31 |
| Potatoes | — | — | Mar 17 – Apr 7 | — |
| Swiss Chard | — | — | Mar 24 – Apr 21 | Aug 17 – Aug 31 |
| Cilantro | — | — | Mar 24 – Apr 14 | Aug 31 – Sep 21 |
| Green Beans | — | — | Apr 14 – May 5 | Aug 10 – Aug 24 |
| Sweet Corn | — | — | Apr 14 – Apr 28 | — |
| Sweet Potatoes | — | Apr 21 – May 12 | — | — |
| Garlic | — | — | — | Oct 12 – Nov 16 |
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 Fairfield Radio Wfiw, IL weather station, 18 km away (elevation 430 ft (131 m)).
Frost dates near Cisne
- Rinard Apr 9 · Oct 24
- Geff Apr 7 · Oct 26
- Johnsonville Apr 9 · Oct 24
- Sims Apr 7 · Oct 26
- Fairfield Apr 7 · Oct 26
- Flora Apr 9 · Oct 24
- Clay City Apr 9 · Oct 24
- Mount Erie Apr 7 · Oct 26
- Xenia Apr 10 · Oct 23
- Wayne City Apr 7 · Oct 26
Frequently asked questions
When is the last frost in Cisne, IL?
The median last spring frost in Cisne, IL is April 7. There is still about a 10% chance of frost after April 23, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Cisne, IL?
The median first fall frost is October 26, with about a 10% chance of frost before October 14.
How long is the growing season in Cisne, IL?
About 202 days between the median last spring frost and first fall frost.
What planting zone is Cisne, IL?
Cisne, IL is in USDA hardiness zone 6b.