Frost dates for 58573Strasburg, ND
The average last spring frost in Strasburg is May 12 and the average first fall frost is September 29, giving a typical growing season of about 138 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 12
- Average first fall frost
- Sep 29
- Growing season
- 138 days
Safer after May 26 (1-in-10 risk)
Possible by Sep 15 (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 7 · May 20 · Jun 4 | Sep 6 · Sep 20 · Oct 2 | 119 days | 100% |
| Frost / freeze (32°F) | Apr 29 · May 12 · May 26 | Sep 15 · Sep 29 · Oct 12 | 138 days | 100% |
| Hard freeze (28°F) | Apr 20 · May 3 · May 17 | Sep 21 · Oct 5 · Oct 20 | 154 days | 100% |
Planting calendar for Strasburg
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 11 – Jun 17 |
| Tomatoes | Transplant outdoors | May 28 – Jun 9 |
| Peppers | Start seeds indoors | Apr 11 – May 12 |
| Peppers | Transplant outdoors | Jun 11 – Jul 12 |
| Eggplant | Start seeds indoors | Apr 28 – May 27 |
| Eggplant | Transplant outdoors | Jun 11 – Jul 12 |
| Cucumbers | Sow outdoors | Jun 11 – Jun 19 |
| Summer squash | Sow outdoors | May 28 – Jul 12 |
| Winter squash & pumpkins | Sow outdoors | Jun 11 – Jul 12 |
| Snap beans | Sow outdoors | May 28 – Jul 12 |
| Sweet corn | Sow outdoors | May 28 – Jun 9 |
| Watermelon & cantaloupe | Sow outdoors | Jun 11 – Jul 12 |
| Okra | Sow outdoors | Jun 4 – Jun 27 |
| Peas | Sow outdoors (spring) | Apr 11 – May 27 |
| Potatoes | Plant outdoors (spring) | Apr 11 – Jun 11 |
| Onions | Start seeds indoors (spring) | Feb 28 – Mar 27 |
| Onions | Transplant outdoors (spring) | Apr 28 – May 27 |
| Broccoli | Start seeds indoors (spring) | Mar 24 – Apr 27 |
| Broccoli | Transplant outdoors (spring) | Apr 28 – May 27 |
| Broccoli | Start seeds indoors (fall) | May 30 – Jun 9 |
| Broccoli | Transplant outdoors (fall) | Jun 29 – Jul 10 |
| Cabbage | Start seeds indoors (spring) | Mar 14 – Apr 11 |
| Cabbage | Transplant outdoors (spring) | Apr 11 – May 12 |
| Cabbage | Start seeds indoors (fall) | May 20 – Jun 19 |
| Cabbage | Transplant outdoors (fall) | Jun 19 – Jul 20 |
| Leaf lettuce | Sow outdoors (spring) | Apr 11 – Jun 27 |
| Leaf lettuce | Sow outdoors (fall) | Jun 19 – Aug 5 |
| Spinach | Sow outdoors (spring) | Apr 4 – May 18 |
| Spinach | Sow outdoors (fall) | Jul 6 – Aug 10 |
| Radishes | Sow outdoors (spring) | Apr 11 – Jun 1 |
| Radishes | Sow outdoors (fall) | Jun 19 – Aug 20 |
| Kale | Sow outdoors (spring) | Apr 28 – May 18 |
| Kale | Sow outdoors (fall) | Jun 12 – Jul 20 |
| Carrots | Sow outdoors (spring) | May 12 – Jun 27 |
| Carrots | Sow outdoors (fall) | May 20 – Jul 5 |
| Garlic | Plant outdoors (fall) | Sep 19 – Oct 20 |
Where these dates come from
ZIP code 58573 is matched to the NOAA station Linton, ND, 18.8 km away, at 1,690 ft elevation (292 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Linton, ND (used) | 1,690 ft | May 12 | Sep 29 |
| Pollock, SD | 1,639 ft | May 8 | Sep 30 |
| Hazelton 4Nw, ND | 1,982 ft | May 12 | Sep 27 |
| Wishek, ND | 2,037 ft | May 13 | Sep 27 |
Frost dates near Strasburg
- Linton, ND 58552 · last May 12, first Sep 29
- Hague, ND 58542 · last May 12, first Sep 29
- Pollock, SD 57648 · last May 8, first Sep 30
- Herreid, SD 57632 · last May 8, first Sep 30
- Fort Yates, ND 58538 · last May 8, first Sep 30
- Zeeland, ND 58581 · last May 13, first Sep 28
- Hazelton, ND 58544 · last May 12, first Sep 27
- Cannon Ball, ND 58528 · last May 12, first Sep 27
Frequently asked questions
- When is the last frost in Strasburg, ND?
- For ZIP code 58573, the average last spring frost (32°F) is May 12, based on NOAA 1991-2020 climate normals for the Linton, ND weather station. There is a 1-in-10 chance of a frost after May 26.
- When is the first frost in Strasburg, ND?
- The average first fall frost (32°F) is September 29. There is a 1-in-10 chance of frost by September 15, so tender plants are at risk from that point on.
- How long is the growing season in 58573?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 138 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.