Frost dates for 61467Oneida, IL
The average last spring frost in Oneida is April 26 and the average first fall frost is October 12, giving a typical growing season of about 166 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 26
- Average first fall frost
- Oct 12
- Growing season
- 166 days
Safer after May 11 (1-in-10 risk)
Possible by Sep 25 (1-in-10 risk)
Last frost typically in 178 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 23 · May 5 · May 20 | Sep 17 · Oct 2 · Oct 13 | 148 days | 100% |
| Frost / freeze (32°F) | Apr 12 · Apr 26 · May 11 | Sep 25 · Oct 12 · Oct 24 | 166 days | 100% |
| Hard freeze (28°F) | Apr 3 · Apr 16 · Apr 30 | Oct 7 · Oct 22 · Nov 3 | 189 days | 100% |
Planting calendar for Oneida
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 26 – Jun 1 |
| Tomatoes | Transplant outdoors | May 12 – Jun 22 |
| Peppers | Start seeds indoors | Mar 26 – Apr 26 |
| Peppers | Transplant outdoors | May 26 – Jun 26 |
| Eggplant | Start seeds indoors | Apr 12 – May 11 |
| Eggplant | Transplant outdoors | May 26 – Jun 26 |
| Cucumbers | Sow outdoors | May 26 – Jul 2 |
| Summer squash | Sow outdoors | May 12 – Jun 26 |
| Winter squash & pumpkins | Sow outdoors | May 26 – Jun 26 |
| Snap beans | Sow outdoors | May 12 – Jul 25 |
| Sweet corn | Sow outdoors | May 12 – Jun 22 |
| Watermelon & cantaloupe | Sow outdoors | May 26 – Jun 26 |
| Okra | Sow outdoors | May 19 – Jun 11 |
| Peas | Sow outdoors (spring) | Mar 26 – May 11 |
| Potatoes | Plant outdoors (spring) | Mar 26 – May 26 |
| Onions | Start seeds indoors (spring) | Feb 12 – Mar 11 |
| Onions | Transplant outdoors (spring) | Apr 12 – May 11 |
| Broccoli | Start seeds indoors (spring) | Mar 8 – Apr 11 |
| Broccoli | Transplant outdoors (spring) | Apr 12 – May 11 |
| Broccoli | Start seeds indoors (fall) | Jun 12 – Jun 22 |
| Broccoli | Transplant outdoors (fall) | Jul 12 – Jul 23 |
| Cabbage | Start seeds indoors (spring) | Feb 26 – Mar 26 |
| Cabbage | Transplant outdoors (spring) | Mar 26 – Apr 26 |
| Cabbage | Start seeds indoors (fall) | Jun 2 – Jul 2 |
| Cabbage | Transplant outdoors (fall) | Jul 2 – Aug 2 |
| Leaf lettuce | Sow outdoors (spring) | Mar 26 – Jun 11 |
| Leaf lettuce | Sow outdoors (fall) | Jul 2 – Aug 18 |
| Spinach | Sow outdoors (spring) | Mar 19 – May 2 |
| Spinach | Sow outdoors (fall) | Jul 19 – Aug 23 |
| Radishes | Sow outdoors (spring) | Mar 26 – May 16 |
| Radishes | Sow outdoors (fall) | Jul 2 – Sep 2 |
| Kale | Sow outdoors (spring) | Apr 12 – May 2 |
| Kale | Sow outdoors (fall) | Jun 25 – Aug 2 |
| Carrots | Sow outdoors (spring) | Apr 26 – Jun 11 |
| Carrots | Sow outdoors (fall) | Jun 2 – Jul 18 |
| Garlic | Plant outdoors (fall) | Oct 2 – Nov 2 |
Where these dates come from
ZIP code 61467 is matched to the NOAA station Galva, IL, 19.8 km away, at 810 ft elevation (4 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Galva, IL (used) | 810 ft | Apr 26 | Oct 12 |
| Altona, IL | 765 ft | Apr 28 | Oct 12 |
| Galesburg, IL | 761 ft | Apr 20 | Oct 19 |
| Knoxville, IL | 728 ft | Apr 21 | Oct 20 |
Frost dates near Oneida
- Wataga, IL 61488 · last Apr 20, first Oct 19
- Altona, IL 61414 · last Apr 26, first Oct 12
- Henderson, IL 61439 · last Apr 20, first Oct 19
- Woodhull, IL 61490 · last Apr 26, first Oct 12
- Rio, IL 61472 · last Apr 20, first Oct 19
- Victoria, IL 61485 · last Apr 26, first Oct 12
- Bishop Hill, IL 61419 · last Apr 26, first Oct 12
- Dahinda, IL 61428 · last Apr 21, first Oct 20
Frequently asked questions
- When is the last frost in Oneida, IL?
- For ZIP code 61467, the average last spring frost (32°F) is April 26, based on NOAA 1991-2020 climate normals for the Galva, IL weather station. There is a 1-in-10 chance of a frost after May 11.
- When is the first frost in Oneida, IL?
- The average first fall frost (32°F) is October 12. There is a 1-in-10 chance of frost by September 25, so tender plants are at risk from that point on.
- How long is the growing season in 61467?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 166 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.