Frost dates for 54733Dallas, WI
The average last spring frost in Dallas is May 10 and the average first fall frost is September 29, giving a typical growing season of about 140 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 10
- Average first fall frost
- Sep 29
- Growing season
- 140 days
Safer after May 26 (1-in-10 risk)
Possible by Sep 13 (1-in-10 risk)
Last frost typically in 190 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 8 · May 21 · Jun 3 | Sep 4 · Sep 20 · Oct 2 | 121 days | 100% |
| Frost / freeze (32°F) | Apr 28 · May 10 · May 26 | Sep 13 · Sep 29 · Oct 12 | 140 days | 100% |
| Hard freeze (28°F) | Apr 15 · Apr 30 · May 14 | Sep 22 · Oct 9 · Oct 24 | 160 days | 100% |
Planting calendar for Dallas
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 9 – Jun 15 |
| Tomatoes | Transplant outdoors | May 26 – Jun 9 |
| Peppers | Start seeds indoors | Apr 9 – May 10 |
| Peppers | Transplant outdoors | Jun 9 – Jul 10 |
| Eggplant | Start seeds indoors | Apr 26 – May 25 |
| Eggplant | Transplant outdoors | Jun 9 – Jul 10 |
| Cucumbers | Sow outdoors | Jun 9 – Jun 19 |
| Summer squash | Sow outdoors | May 26 – Jul 10 |
| Winter squash & pumpkins | Sow outdoors | Jun 9 – Jul 10 |
| Snap beans | Sow outdoors | May 26 – Jul 12 |
| Sweet corn | Sow outdoors | May 26 – Jun 9 |
| Watermelon & cantaloupe | Sow outdoors | Jun 9 – Jul 10 |
| Okra | Sow outdoors | Jun 2 – Jun 25 |
| Peas | Sow outdoors (spring) | Apr 9 – May 25 |
| Potatoes | Plant outdoors (spring) | Apr 9 – Jun 9 |
| Onions | Start seeds indoors (spring) | Feb 26 – Mar 25 |
| Onions | Transplant outdoors (spring) | Apr 26 – May 25 |
| Broccoli | Start seeds indoors (spring) | Mar 22 – Apr 25 |
| Broccoli | Transplant outdoors (spring) | Apr 26 – May 25 |
| Broccoli | Start seeds indoors (fall) | May 30 – Jun 9 |
| Broccoli | Transplant outdoors (fall) | Jun 29 – Jul 10 |
| Cabbage | Start seeds indoors (spring) | Mar 12 – Apr 9 |
| Cabbage | Transplant outdoors (spring) | Apr 9 – May 10 |
| Cabbage | Start seeds indoors (fall) | May 20 – Jun 19 |
| Cabbage | Transplant outdoors (fall) | Jun 19 – Jul 20 |
| Leaf lettuce | Sow outdoors (spring) | Apr 9 – Jun 25 |
| Leaf lettuce | Sow outdoors (fall) | Jun 19 – Aug 5 |
| Spinach | Sow outdoors (spring) | Apr 2 – May 16 |
| Spinach | Sow outdoors (fall) | Jul 6 – Aug 10 |
| Radishes | Sow outdoors (spring) | Apr 9 – May 30 |
| Radishes | Sow outdoors (fall) | Jun 19 – Aug 20 |
| Kale | Sow outdoors (spring) | Apr 26 – May 16 |
| Kale | Sow outdoors (fall) | Jun 12 – Jul 20 |
| Carrots | Sow outdoors (spring) | May 10 – Jun 25 |
| Carrots | Sow outdoors (fall) | May 20 – Jul 5 |
| Garlic | Plant outdoors (fall) | Sep 19 – Oct 20 |
Where these dates come from
ZIP code 54733 is matched to the NOAA station Ridgeland 1Nne, WI, 6 km away, at 1,080 ft elevation (10 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Ridgeland 1Nne, WI (used) | 1,080 ft | May 10 | Sep 29 |
| Rice Lake, WI | 1,103 ft | May 8 | Oct 2 |
| Bloomer, WI | 990 ft | May 5 | Oct 3 |
| Cumberland, WI | 1,240 ft | May 5 | Oct 4 |
Frost dates near Dallas
- Ridgeland, WI 54763 · last May 10, first Sep 29
- Prairie Farm, WI 54762 · last May 10, first Sep 29
- Sand Creek, WI 54765 · last May 5, first Oct 3
- Chetek, WI 54728 · last May 8, first Oct 2
- Barron, WI 54812 · last May 8, first Oct 2
- Cameron, WI 54822 · last May 8, first Oct 2
- Wheeler, WI 54772 · last May 10, first Sep 29
- Almena, WI 54805 · last May 5, first Oct 4
Frequently asked questions
- When is the last frost in Dallas, WI?
- For ZIP code 54733, the average last spring frost (32°F) is May 10, based on NOAA 1991-2020 climate normals for the Ridgeland 1Nne, WI weather station. There is a 1-in-10 chance of a frost after May 26.
- When is the first frost in Dallas, WI?
- The average first fall frost (32°F) is September 29. There is a 1-in-10 chance of frost by September 13, so tender plants are at risk from that point on.
- How long is the growing season in 54733?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 140 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.