Frost dates for 54155Oneida, WI
The average last spring frost in Oneida is May 1 and the average first fall frost is October 11, giving a typical growing season of about 160 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 1
- Average first fall frost
- Oct 11
- Growing season
- 160 days
Safer after May 16 (1-in-10 risk)
Possible by Sep 26 (1-in-10 risk)
Last frost typically in 186 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 30 · May 14 · May 29 | Sep 18 · Sep 30 · Oct 13 | 137 days | 100% |
| Frost / freeze (32°F) | Apr 19 · May 1 · May 16 | Sep 26 · Oct 11 · Oct 26 | 160 days | 100% |
| Hard freeze (28°F) | Apr 6 · Apr 20 · May 4 | Oct 10 · Oct 25 · Nov 6 | 186 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 31 – Jun 6 |
| Tomatoes | Transplant outdoors | May 17 – Jun 21 |
| Peppers | Start seeds indoors | Mar 31 – May 1 |
| Peppers | Transplant outdoors | May 31 – Jul 1 |
| Eggplant | Start seeds indoors | Apr 17 – May 16 |
| Eggplant | Transplant outdoors | May 31 – Jul 1 |
| Cucumbers | Sow outdoors | May 31 – Jul 1 |
| Summer squash | Sow outdoors | May 17 – Jul 1 |
| Winter squash & pumpkins | Sow outdoors | May 31 – Jul 1 |
| Snap beans | Sow outdoors | May 17 – Jul 24 |
| Sweet corn | Sow outdoors | May 17 – Jun 21 |
| Watermelon & cantaloupe | Sow outdoors | May 31 – Jul 1 |
| Okra | Sow outdoors | May 24 – Jun 16 |
| Peas | Sow outdoors (spring) | Mar 31 – May 16 |
| Potatoes | Plant outdoors (spring) | Mar 31 – May 31 |
| Onions | Start seeds indoors (spring) | Feb 17 – Mar 16 |
| Onions | Transplant outdoors (spring) | Apr 17 – May 16 |
| Broccoli | Start seeds indoors (spring) | Mar 13 – Apr 16 |
| Broccoli | Transplant outdoors (spring) | Apr 17 – May 16 |
| Broccoli | Start seeds indoors (fall) | Jun 11 – Jun 21 |
| Broccoli | Transplant outdoors (fall) | Jul 11 – Jul 22 |
| Cabbage | Start seeds indoors (spring) | Mar 3 – Mar 31 |
| Cabbage | Transplant outdoors (spring) | Mar 31 – May 1 |
| Cabbage | Start seeds indoors (fall) | Jun 1 – Jul 1 |
| Cabbage | Transplant outdoors (fall) | Jul 1 – Aug 1 |
| Leaf lettuce | Sow outdoors (spring) | Mar 31 – Jun 16 |
| Leaf lettuce | Sow outdoors (fall) | Jul 1 – Aug 17 |
| Spinach | Sow outdoors (spring) | Mar 24 – May 7 |
| Spinach | Sow outdoors (fall) | Jul 18 – Aug 22 |
| Radishes | Sow outdoors (spring) | Mar 31 – May 21 |
| Radishes | Sow outdoors (fall) | Jul 1 – Sep 1 |
| Kale | Sow outdoors (spring) | Apr 17 – May 7 |
| Kale | Sow outdoors (fall) | Jun 24 – Aug 1 |
| Carrots | Sow outdoors (spring) | May 1 – Jun 16 |
| Carrots | Sow outdoors (fall) | Jun 1 – Jul 17 |
| Garlic | Plant outdoors (fall) | Oct 1 – Nov 1 |
Where these dates come from
ZIP code 54155 is matched to the NOAA station Green Bay Wfo, WI, 6.2 km away, at 682 ft elevation (66 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Green Bay Wfo, WI (used) | 682 ft | May 1 | Oct 11 |
| Green Bay, WI | 682 ft | Apr 30 | Oct 9 |
| Green Bay Botanical, WI | 694 ft | May 7 | Oct 9 |
| Appleton, WI | 792 ft | May 4 | Oct 6 |
Frost dates near Oneida
- Green Bay, WI 54313 · last May 7, first Oct 9
- Seymour, WI 54165 · last May 1, first Oct 11
- De Pere, WI 54115 · last Apr 30, first Oct 9
- Pulaski, WI 54162 · last May 7, first Oct 9
- Suamico, WI 54173 · last May 7, first Oct 9
- Wrightstown, WI 54180 · last May 1, first Oct 11
- Black Creek, WI 54106 · last May 4, first Oct 6
- Nichols, WI 54152 · last May 4, first Oct 6
Frequently asked questions
- When is the last frost in Oneida, WI?
- For ZIP code 54155, the average last spring frost (32°F) is May 1, based on NOAA 1991-2020 climate normals for the Green Bay Wfo, WI weather station. There is a 1-in-10 chance of a frost after May 16.
- When is the first frost in Oneida, WI?
- The average first fall frost (32°F) is October 11. There is a 1-in-10 chance of frost by September 26, so tender plants are at risk from that point on.
- How long is the growing season in 54155?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 160 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.