Bartelso, IL frost dates
Last spring frostApr 6median date
First fall frostOct 29median date
Growing season206 daysfrost-free
Hardiness zone6bZone 6b
How Bartelso compares
- In 8 years out of 10, the last spring frost in Bartelso falls between March 23 and April 22, a 30-day window. The first fall frost falls between October 16 and November 12.
- The median last frost is 11 days earlier than the Illinois median of Apr 17.
- Its 206-day growing season is longer than 93% of the 1,287 Illinois places with a regular frost season (state median 187 days).
- The last frost is 16 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 101 nights a year at or below 32°F.
- Compared with Florissant, MO, 80 km away, the last frost here is 4 days later than there and the growing season is 10 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 23 |
| 50% (median) | April 6 |
| 10% (safe for tender plants) | April 22 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 16 |
| 50% (median) | October 29 |
| 90% (late) | November 12 |
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 Bartelso, IL
Bartelso, IL frost dates — last frost Apr 6, first frost Oct 29, zone 6b. whenisthelastfrost.com
Crop
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Start indoors: Jan 12 to Jan 26Transplant outside: Mar 9 to Mar 23
Start indoors: Jan 26 to Feb 9Transplant outside: Apr 20 to May 4
Start indoors: Jan 26 to Feb 9Transplant outside: Apr 20 to May 4
Start indoors: Feb 9 to Feb 23Transplant outside: Apr 13 to Apr 27
Start indoors: Feb 9 to Feb 23Transplant outside: Mar 16 to Mar 30Sow outdoors: Mar 9 to Apr 13Plant for fall: Sep 3 to Oct 1
Start indoors: Feb 9 to Feb 23Transplant outside: Mar 9 to Mar 23Sow outdoors: Mar 9 to Mar 23Plant for fall: Aug 20 to Sep 10
Start indoors: Feb 9 to Feb 23Transplant outside: Mar 23 to Apr 6Plant for fall: Jul 23 to Aug 13
Start indoors: Feb 9 to Feb 23Transplant outside: Mar 16 to Mar 30Plant for fall: Jul 23 to Aug 13
Start indoors: Feb 9 to Feb 23Transplant outside: Mar 23 to Apr 6Plant for fall: Jul 23 to Aug 13
Start indoors: Feb 23 to Mar 9Transplant outside: Apr 27 to May 11Sow outdoors: Apr 27 to May 11
Start indoors: Feb 23 to Mar 9Transplant outside: Apr 13 to Apr 27
Sow outdoors: Feb 23 to Mar 16Plant for fall: Aug 6 to Aug 27
Sow outdoors: Feb 23 to Mar 16Plant for fall: Sep 3 to Sep 24
Sow outdoors: Mar 2 to Apr 13Plant for fall: Sep 17 to Oct 8
Start indoors: Mar 9 to Mar 16Transplant outside: Apr 20 to Apr 27Sow outdoors: Apr 13 to Apr 27Plant for fall: Aug 13 to Aug 27
Start indoors: Mar 9 to Mar 16Sow outdoors: Apr 13 to Apr 27Plant for fall: Aug 20 to Sep 3
Start indoors: Mar 9 to Mar 16Sow outdoors: Apr 13 to Apr 27
Start indoors: Mar 9 to Mar 16Transplant outside: Apr 20 to May 4
Sow outdoors: Mar 16 to Apr 13Plant for fall: Aug 6 to Aug 20
Sow outdoors: Mar 16 to Apr 13Plant for fall: Aug 20 to Sep 3
Sow outdoors: Mar 16 to Apr 6
Sow outdoors: Mar 23 to Apr 20Plant for fall: Aug 20 to Sep 3
Sow outdoors: Mar 23 to Apr 13Plant for fall: Sep 3 to Sep 24
Sow outdoors: Apr 13 to May 4Plant for fall: Aug 13 to Aug 27
Sow outdoors: Apr 13 to Apr 27
Transplant outside: Apr 20 to May 11
Plant for fall: Oct 15 to Nov 19
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Bartelso, IL
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 12 – Jan 26 | Mar 9 – Mar 23 | — | — |
| Peppers | Jan 26 – Feb 9 | Apr 20 – May 4 | — | — |
| Eggplant | Jan 26 – Feb 9 | Apr 20 – May 4 | — | — |
| Tomatoes | Feb 9 – Feb 23 | Apr 13 – Apr 27 | — | — |
| Lettuce | Feb 9 – Feb 23 | Mar 16 – Mar 30 | Mar 9 – Apr 13 | Sep 3 – Oct 1 |
| Kale | Feb 9 – Feb 23 | Mar 9 – Mar 23 | Mar 9 – Mar 23 | Aug 20 – Sep 10 |
| Broccoli | Feb 9 – Feb 23 | Mar 23 – Apr 6 | — | Jul 23 – Aug 13 |
| Cabbage | Feb 9 – Feb 23 | Mar 16 – Mar 30 | — | Jul 23 – Aug 13 |
| Cauliflower | Feb 9 – Feb 23 | Mar 23 – Apr 6 | — | Jul 23 – Aug 13 |
| Okra | Feb 23 – Mar 9 | Apr 27 – May 11 | Apr 27 – May 11 | — |
| Basil | Feb 23 – Mar 9 | Apr 13 – Apr 27 | — | — |
| Peas | — | — | Feb 23 – Mar 16 | Aug 6 – Aug 27 |
| Spinach | — | — | Feb 23 – Mar 16 | Sep 3 – Sep 24 |
| Radishes | — | — | Mar 2 – Apr 13 | Sep 17 – Oct 8 |
| Cucumbers | Mar 9 – Mar 16 | Apr 20 – Apr 27 | Apr 13 – Apr 27 | Aug 13 – Aug 27 |
| Zucchini & Summer Squash | Mar 9 – Mar 16 | — | Apr 13 – Apr 27 | Aug 20 – Sep 3 |
| Winter Squash & Pumpkins | Mar 9 – Mar 16 | — | Apr 13 – Apr 27 | — |
| Melons & Watermelon | Mar 9 – Mar 16 | Apr 20 – May 4 | — | — |
| Carrots | — | — | Mar 16 – Apr 13 | Aug 6 – Aug 20 |
| Beets | — | — | Mar 16 – Apr 13 | Aug 20 – Sep 3 |
| Potatoes | — | — | Mar 16 – Apr 6 | — |
| Swiss Chard | — | — | Mar 23 – Apr 20 | Aug 20 – Sep 3 |
| Cilantro | — | — | Mar 23 – Apr 13 | Sep 3 – Sep 24 |
| Green Beans | — | — | Apr 13 – May 4 | Aug 13 – Aug 27 |
| Sweet Corn | — | — | Apr 13 – Apr 27 | — |
| Sweet Potatoes | — | Apr 20 – May 11 | — | — |
| Garlic | — | — | — | Oct 15 – Nov 19 |
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 Carlyle Rsvr, IL weather station, 13 km away (elevation 502 ft (153 m)).
Frost dates near Bartelso
- Germantown Apr 6 · Oct 29
- Beckemeyer Apr 6 · Oct 29
- Carlyle Apr 6 · Oct 29
- Breese Apr 6 · Oct 29
- Okawville Apr 7 · Oct 26
- Albers Apr 12 · Oct 20
- Aviston Apr 6 · Oct 29
- Huey Apr 6 · Oct 29
- Hoyleton Apr 7 · Oct 26
- Hoffman Apr 6 · Oct 29
Frequently asked questions
When is the last frost in Bartelso, IL?
The median last spring frost in Bartelso, IL is April 6. There is still about a 10% chance of frost after April 22, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Bartelso, IL?
The median first fall frost is October 29, with about a 10% chance of frost before October 16.
How long is the growing season in Bartelso, IL?
About 206 days between the median last spring frost and first fall frost.
What planting zone is Bartelso, IL?
Bartelso, IL is in USDA hardiness zone 6b.