Frost dates for 58649Reeder, ND
The average last spring frost in Reeder is May 24 and the average first fall frost is September 18, giving a typical growing season of about 115 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 24
- Average first fall frost
- Sep 18
- Growing season
- 115 days
Safer after Jun 10 (1-in-10 risk)
Possible by Sep 1 (1-in-10 risk)
Last frost typically in 210 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 21 · Jun 4 · Jun 24 | Aug 22 · Sep 6 · Sep 20 | 92 days | 100% |
| Frost / freeze (32°F) | May 11 · May 24 · Jun 10 | Sep 1 · Sep 18 · Oct 1 | 115 days | 100% |
| Hard freeze (28°F) | May 2 · May 13 · May 28 | Sep 11 · Sep 27 · Oct 11 | 135 days | 100% |
Planting calendar for Reeder
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 23 – Jun 29 |
| Tomatoes | Transplant outdoors | Jun 9 – May 29 |
| Peppers | Start seeds indoors | Apr 23 – May 24 |
| Peppers | Transplant outdoors | Jun 23 – Jul 24 |
| Eggplant | Start seeds indoors | May 10 – Jun 8 |
| Eggplant | Transplant outdoors | Jun 23 – Jul 24 |
| Cucumbers | Sow outdoors | Jun 23 – Jun 8 |
| Summer squash | Sow outdoors | Jun 9 – Jul 24 |
| Winter squash & pumpkins | Sow outdoors | Jun 23 – Jul 24 |
| Snap beans | Sow outdoors | Jun 9 – Jul 1 |
| Sweet corn | Sow outdoors | Jun 9 – May 29 |
| Watermelon & cantaloupe | Sow outdoors | Jun 23 – Jul 24 |
| Okra | Sow outdoors | Jun 16 – Jul 9 |
| Peas | Sow outdoors (spring) | Apr 23 – Jun 8 |
| Potatoes | Plant outdoors (spring) | Apr 23 – Jun 23 |
| Onions | Start seeds indoors (spring) | Mar 12 – Apr 8 |
| Onions | Transplant outdoors (spring) | May 10 – Jun 8 |
| Broccoli | Start seeds indoors (spring) | Apr 5 – May 9 |
| Broccoli | Transplant outdoors (spring) | May 10 – Jun 8 |
| Broccoli | Start seeds indoors (fall) | May 19 – May 29 |
| Broccoli | Transplant outdoors (fall) | Jun 18 – Jun 29 |
| Cabbage | Start seeds indoors (spring) | Mar 26 – Apr 23 |
| Cabbage | Transplant outdoors (spring) | Apr 23 – May 24 |
| Cabbage | Start seeds indoors (fall) | May 9 – Jun 8 |
| Cabbage | Transplant outdoors (fall) | Jun 8 – Jul 9 |
| Leaf lettuce | Sow outdoors (spring) | Apr 23 – Jul 9 |
| Leaf lettuce | Sow outdoors (fall) | Jun 8 – Jul 25 |
| Spinach | Sow outdoors (spring) | Apr 16 – May 30 |
| Spinach | Sow outdoors (fall) | Jun 25 – Jul 30 |
| Radishes | Sow outdoors (spring) | Apr 23 – Jun 13 |
| Radishes | Sow outdoors (fall) | Jun 8 – Aug 9 |
| Kale | Sow outdoors (spring) | May 10 – May 30 |
| Kale | Sow outdoors (fall) | Jun 1 – Jul 9 |
| Carrots | Sow outdoors (spring) | May 24 – Jul 9 |
| Carrots | Sow outdoors (fall) | May 9 – Jun 24 |
| Garlic | Plant outdoors (fall) | Sep 8 – Oct 9 |
Where these dates come from
ZIP code 58649 is matched to the NOAA station Hettinger Muni Ap, ND, 24.6 km away, at 2,705 ft elevation (156 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Hettinger Muni Ap, ND (used) | 2,705 ft | May 24 | Sep 18 |
| Hettinger Exp Stn, ND | 2,703 ft | May 21 | Sep 21 |
| Bowman, ND | 2,983 ft | May 16 | Sep 25 |
| Ralph 1 N, SD | 2,790 ft | May 18 | Sep 23 |
Frost dates near Reeder
- Hettinger, ND 58639 · last May 24, first Sep 18
- Scranton, ND 58653 · last May 16, first Sep 25
- Ralph, SD 57650 · last May 16, first Sep 26
- Lodgepole, SD 57640 · last May 21, first Sep 21
- Bowman, ND 58623 · last May 16, first Sep 25
- Ludlow, SD 57755 · last May 16, first Sep 26
- Regent, ND 58650 · last May 16, first Sep 24
- New England, ND 58647 · last May 16, first Sep 24
Frequently asked questions
- When is the last frost in Reeder, ND?
- For ZIP code 58649, the average last spring frost (32°F) is May 24, based on NOAA 1991-2020 climate normals for the Hettinger Muni Ap, ND weather station. There is a 1-in-10 chance of a frost after June 10.
- When is the first frost in Reeder, ND?
- The average first fall frost (32°F) is September 18. There is a 1-in-10 chance of frost by September 1, so tender plants are at risk from that point on.
- How long is the growing season in 58649?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 115 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.