Frost dates for 54862Ojibwa, WI
The average last spring frost in Ojibwa is May 19 and the average first fall frost is September 27, giving a typical growing season of about 129 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 19
- Average first fall frost
- Sep 27
- Growing season
- 129 days
Safer after Jun 3 (1-in-10 risk)
Possible by Sep 8 (1-in-10 risk)
Last frost typically in 198 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) | May 18 · Jun 2 · Jun 15 | Aug 31 · Sep 17 · Oct 1 | 105 days | 100% |
| Frost / freeze (32°F) | May 3 · May 19 · Jun 3 | Sep 8 · Sep 27 · Oct 8 | 129 days | 100% |
| Hard freeze (28°F) | Apr 22 · May 6 · May 21 | Sep 20 · Oct 5 · Oct 22 | 152 days | 100% |
Planting calendar for Ojibwa
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 | Apr 18 – Jun 24 |
| Tomatoes | Transplant outdoors | Jun 4 – Jun 7 |
| Peppers | Start seeds indoors | Apr 18 – May 19 |
| Peppers | Transplant outdoors | Jun 18 – Jul 19 |
| Eggplant | Start seeds indoors | May 5 – Jun 3 |
| Eggplant | Transplant outdoors | Jun 18 – Jul 19 |
| Cucumbers | Sow outdoors | Jun 18 – Jun 17 |
| Summer squash | Sow outdoors | Jun 4 – Jul 19 |
| Winter squash & pumpkins | Sow outdoors | Jun 18 – Jul 19 |
| Snap beans | Sow outdoors | Jun 4 – Jul 10 |
| Sweet corn | Sow outdoors | Jun 4 – Jun 7 |
| Watermelon & cantaloupe | Sow outdoors | Jun 18 – Jul 19 |
| Okra | Sow outdoors | Jun 11 – Jul 4 |
| Peas | Sow outdoors (spring) | Apr 18 – Jun 3 |
| Potatoes | Plant outdoors (spring) | Apr 18 – Jun 18 |
| Onions | Start seeds indoors (spring) | Mar 7 – Apr 3 |
| Onions | Transplant outdoors (spring) | May 5 – Jun 3 |
| Broccoli | Start seeds indoors (spring) | Mar 31 – May 4 |
| Broccoli | Transplant outdoors (spring) | May 5 – Jun 3 |
| Broccoli | Start seeds indoors (fall) | May 28 – Jun 7 |
| Broccoli | Transplant outdoors (fall) | Jun 27 – Jul 8 |
| Cabbage | Start seeds indoors (spring) | Mar 21 – Apr 18 |
| Cabbage | Transplant outdoors (spring) | Apr 18 – May 19 |
| Cabbage | Start seeds indoors (fall) | May 18 – Jun 17 |
| Cabbage | Transplant outdoors (fall) | Jun 17 – Jul 18 |
| Leaf lettuce | Sow outdoors (spring) | Apr 18 – Jul 4 |
| Leaf lettuce | Sow outdoors (fall) | Jun 17 – Aug 3 |
| Spinach | Sow outdoors (spring) | Apr 11 – May 25 |
| Spinach | Sow outdoors (fall) | Jul 4 – Aug 8 |
| Radishes | Sow outdoors (spring) | Apr 18 – Jun 8 |
| Radishes | Sow outdoors (fall) | Jun 17 – Aug 18 |
| Kale | Sow outdoors (spring) | May 5 – May 25 |
| Kale | Sow outdoors (fall) | Jun 10 – Jul 18 |
| Carrots | Sow outdoors (spring) | May 19 – Jul 4 |
| Carrots | Sow outdoors (fall) | May 18 – Jul 3 |
| Garlic | Plant outdoors (fall) | Sep 17 – Oct 18 |
Where these dates come from
ZIP code 54862 is matched to the NOAA station Winter, WI, 9.1 km away, at 1,355 ft elevation (56 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Winter, WI (used) | 1,355 ft | May 19 | Sep 27 |
| Couderay 7 W, WI | 1,300 ft | — | — |
| Big Falls Hydro, WI | 1,205 ft | May 7 | Oct 3 |
| Ladysmith 3W, WI | 1,130 ft | May 27 | Sep 22 |
Frost dates near Ojibwa
- Radisson, WI 54867 · last —, first —
- Winter, WI 54896 · last May 19, first Sep 27
- Exeland, WI 54835 · last May 7, first Oct 3
- Couderay, WI 54828 · last —, first —
- Hayward, WI 54843 · last May 23, first Sep 22
- Edgewater, WI 54834 · last —, first —
- Stone Lake, WI 54876 · last —, first —
- Ladysmith, WI 54848 · last May 7, first Oct 3
Frequently asked questions
- When is the last frost in Ojibwa, WI?
- For ZIP code 54862, the average last spring frost (32°F) is May 19, based on NOAA 1991-2020 climate normals for the Winter, WI weather station. There is a 1-in-10 chance of a frost after June 3.
- When is the first frost in Ojibwa, WI?
- The average first fall frost (32°F) is September 27. There is a 1-in-10 chance of frost by September 8, so tender plants are at risk from that point on.
- How long is the growing season in 54862?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 129 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.