Frost dates for 57259Revillo, SD
The average last spring frost in Revillo is May 5 and the average first fall frost is October 2, giving a typical growing season of about 150 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 5
- Average first fall frost
- Oct 2
- Growing season
- 150 days
Safer after May 18 (1-in-10 risk)
Possible by Sep 20 (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 3 · May 14 · May 27 | Sep 12 · Sep 24 · Oct 5 | 132 days | 100% |
| Frost / freeze (32°F) | Apr 22 · May 5 · May 18 | Sep 20 · Oct 2 · Oct 15 | 150 days | 100% |
| Hard freeze (28°F) | Apr 10 · Apr 25 · May 9 | Sep 29 · Oct 13 · Oct 26 | 168 days | 100% |
Planting calendar for Revillo
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 4 – Jun 10 |
| Tomatoes | Transplant outdoors | May 21 – Jun 12 |
| Peppers | Start seeds indoors | Apr 4 – May 5 |
| Peppers | Transplant outdoors | Jun 4 – Jul 5 |
| Eggplant | Start seeds indoors | Apr 21 – May 20 |
| Eggplant | Transplant outdoors | Jun 4 – Jul 5 |
| Cucumbers | Sow outdoors | Jun 4 – Jun 22 |
| Summer squash | Sow outdoors | May 21 – Jul 5 |
| Winter squash & pumpkins | Sow outdoors | Jun 4 – Jul 5 |
| Snap beans | Sow outdoors | May 21 – Jul 15 |
| Sweet corn | Sow outdoors | May 21 – Jun 12 |
| Watermelon & cantaloupe | Sow outdoors | Jun 4 – Jul 5 |
| Okra | Sow outdoors | May 28 – Jun 20 |
| Peas | Sow outdoors (spring) | Apr 4 – May 20 |
| Potatoes | Plant outdoors (spring) | Apr 4 – Jun 4 |
| Onions | Start seeds indoors (spring) | Feb 21 – Mar 20 |
| Onions | Transplant outdoors (spring) | Apr 21 – May 20 |
| Broccoli | Start seeds indoors (spring) | Mar 17 – Apr 20 |
| Broccoli | Transplant outdoors (spring) | Apr 21 – May 20 |
| Broccoli | Start seeds indoors (fall) | Jun 2 – Jun 12 |
| Broccoli | Transplant outdoors (fall) | Jul 2 – Jul 13 |
| Cabbage | Start seeds indoors (spring) | Mar 7 – Apr 4 |
| Cabbage | Transplant outdoors (spring) | Apr 4 – May 5 |
| Cabbage | Start seeds indoors (fall) | May 23 – Jun 22 |
| Cabbage | Transplant outdoors (fall) | Jun 22 – Jul 23 |
| Leaf lettuce | Sow outdoors (spring) | Apr 4 – Jun 20 |
| Leaf lettuce | Sow outdoors (fall) | Jun 22 – Aug 8 |
| Spinach | Sow outdoors (spring) | Mar 28 – May 11 |
| Spinach | Sow outdoors (fall) | Jul 9 – Aug 13 |
| Radishes | Sow outdoors (spring) | Apr 4 – May 25 |
| Radishes | Sow outdoors (fall) | Jun 22 – Aug 23 |
| Kale | Sow outdoors (spring) | Apr 21 – May 11 |
| Kale | Sow outdoors (fall) | Jun 15 – Jul 23 |
| Carrots | Sow outdoors (spring) | May 5 – Jun 20 |
| Carrots | Sow outdoors (fall) | May 23 – Jul 8 |
| Garlic | Plant outdoors (fall) | Sep 22 – Oct 23 |
Where these dates come from
ZIP code 57259 is matched to the NOAA station Milbank, SD, 17.1 km away, at 1,142 ft elevation (13 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Milbank, SD (used) | 1,142 ft | May 5 | Oct 2 |
| Milbank 4 Nw, SD | 1,145 ft | May 2 | Oct 4 |
| Madison Wwtp, MN | 1,075 ft | May 3 | Oct 2 |
| Clear Lake, SD | 1,812 ft | May 7 | Oct 1 |
Frost dates near Revillo
- Labolt, SD 57246 · last May 7, first Oct 1
- Milbank, SD 57252 · last May 5, first Oct 2
- Marietta, MN 56257 · last May 3, first Oct 2
- Strandburg, SD 57265 · last May 7, first Sep 30
- Bellingham, MN 56212 · last May 3, first Oct 2
- Stockholm, SD 57264 · last May 7, first Sep 30
- Big Stone City, SD 57216 · last May 5, first Oct 2
- Odessa, MN 56276 · last May 1, first Oct 8
Frequently asked questions
- When is the last frost in Revillo, SD?
- For ZIP code 57259, the average last spring frost (32°F) is May 5, based on NOAA 1991-2020 climate normals for the Milbank, SD weather station. There is a 1-in-10 chance of a frost after May 18.
- When is the first frost in Revillo, SD?
- The average first fall frost (32°F) is October 2. There is a 1-in-10 chance of frost by September 20, so tender plants are at risk from that point on.
- How long is the growing season in 57259?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 150 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.