Frost dates for 62939Goreville, IL
The average last spring frost in Goreville is April 8 and the average first fall frost is October 29, giving a typical growing season of about 203 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 8
- Average first fall frost
- Oct 29
- Growing season
- 203 days
Safer after Apr 26 (1-in-10 risk)
Possible by Oct 17 (1-in-10 risk)
Last frost typically in 160 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 4 · Apr 21 · May 6 | Oct 6 · Oct 19 · Oct 31 | 181 days | 100% |
| Frost / freeze (32°F) | Mar 22 · Apr 8 · Apr 26 | Oct 17 · Oct 29 · Nov 10 | 203 days | 100% |
| Hard freeze (28°F) | Mar 10 · Mar 29 · Apr 16 | Oct 27 · Nov 8 · Nov 25 | 225 days | 100% |
Planting calendar for Goreville
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 8 – May 14 |
| Tomatoes | Transplant outdoors | Apr 24 – Jul 9 |
| Peppers | Start seeds indoors | Mar 8 – Apr 8 |
| Peppers | Transplant outdoors | May 8 – Jun 8 |
| Eggplant | Start seeds indoors | Mar 25 – Apr 23 |
| Eggplant | Transplant outdoors | May 8 – Jun 8 |
| Cucumbers | Sow outdoors | May 8 – Jul 19 |
| Summer squash | Sow outdoors | Apr 24 – Jun 8 |
| Winter squash & pumpkins | Sow outdoors | May 8 – Jun 8 |
| Snap beans | Sow outdoors | Apr 24 – Aug 11 |
| Sweet corn | Sow outdoors | Apr 24 – Jul 9 |
| Watermelon & cantaloupe | Sow outdoors | May 8 – Jun 8 |
| Okra | Sow outdoors | May 1 – May 24 |
| Peas | Sow outdoors (spring) | Mar 8 – Apr 23 |
| Potatoes | Plant outdoors (spring) | Mar 8 – May 8 |
| Onions | Start seeds indoors (spring) | Jan 25 – Feb 21 |
| Onions | Transplant outdoors (spring) | Mar 25 – Apr 23 |
| Broccoli | Start seeds indoors (spring) | Feb 18 – Mar 24 |
| Broccoli | Transplant outdoors (spring) | Mar 25 – Apr 23 |
| Broccoli | Start seeds indoors (fall) | Jun 29 – Jul 9 |
| Broccoli | Transplant outdoors (fall) | Jul 29 – Aug 9 |
| Cabbage | Start seeds indoors (spring) | Feb 8 – Mar 8 |
| Cabbage | Transplant outdoors (spring) | Mar 8 – Apr 8 |
| Cabbage | Start seeds indoors (fall) | Jun 19 – Jul 19 |
| Cabbage | Transplant outdoors (fall) | Jul 19 – Aug 19 |
| Leaf lettuce | Sow outdoors (spring) | Mar 8 – May 24 |
| Leaf lettuce | Sow outdoors (fall) | Jul 19 – Sep 4 |
| Spinach | Sow outdoors (spring) | Mar 1 – Apr 14 |
| Spinach | Sow outdoors (fall) | Aug 5 – Sep 9 |
| Radishes | Sow outdoors (spring) | Mar 8 – Apr 28 |
| Radishes | Sow outdoors (fall) | Jul 19 – Sep 19 |
| Kale | Sow outdoors (spring) | Mar 25 – Apr 14 |
| Kale | Sow outdoors (fall) | Jul 12 – Aug 19 |
| Carrots | Sow outdoors (spring) | Apr 8 – May 24 |
| Carrots | Sow outdoors (fall) | Jun 19 – Aug 4 |
| Garlic | Plant outdoors (fall) | Oct 19 – Nov 19 |
Where these dates come from
ZIP code 62939 is matched to the NOAA station Anna 2 Nne, IL, 25.9 km away, at 640 ft elevation (26 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Anna 2 Nne, IL (used) | 640 ft | Apr 8 | Oct 29 |
| Carbondale Sewage Plt, IL | 390 ft | Apr 9 | Oct 22 |
| Dixon Springs Agric Ctr, IL | 527 ft | Apr 14 | Oct 21 |
| Carbondale Southern Il Ap, IL | 406 ft | Apr 9 | Oct 22 |
Frost dates near Goreville
- Creal Springs, IL 62922 · last Apr 14, first Oct 21
- Buncombe, IL 62912 · last Apr 8, first Oct 29
- Boles, IL 62909 · last Apr 14, first Oct 21
- Carbondale, IL 62902 · last Apr 9, first Oct 22
- Marion, IL 62959 · last Apr 9, first Oct 22
- Ozark, IL 62972 · last Apr 14, first Oct 21
- Vienna, IL 62995 · last Apr 14, first Oct 21
- New Burnside, IL 62967 · last Apr 14, first Oct 21
Frequently asked questions
- When is the last frost in Goreville, IL?
- For ZIP code 62939, the average last spring frost (32°F) is April 8, based on NOAA 1991-2020 climate normals for the Anna 2 Nne, IL weather station. There is a 1-in-10 chance of a frost after April 26.
- When is the first frost in Goreville, IL?
- The average first fall frost (32°F) is October 29. 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 62939?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 203 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.