Frost dates for 58642Manning, ND
The average last spring frost in Manning is May 18 and the average first fall frost is September 24, giving a typical growing season of about 127 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 18
- Average first fall frost
- Sep 24
- Growing season
- 127 days
Safer after May 31 (1-in-10 risk)
Possible by Sep 11 (1-in-10 risk)
Last frost typically in 204 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 15 · May 28 · Jun 11 | Sep 3 · Sep 16 · Sep 28 | 110 days | 100% |
| Frost / freeze (32°F) | May 5 · May 18 · May 31 | Sep 11 · Sep 24 · Oct 6 | 127 days | 100% |
| Hard freeze (28°F) | Apr 24 · May 9 · May 21 | Sep 20 · Oct 3 · Oct 16 | 146 days | 100% |
Planting calendar for Manning
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 17 – Jun 23 |
| Tomatoes | Transplant outdoors | Jun 3 – Jun 4 |
| Peppers | Start seeds indoors | Apr 17 – May 18 |
| Peppers | Transplant outdoors | Jun 17 – Jul 18 |
| Eggplant | Start seeds indoors | May 4 – Jun 2 |
| Eggplant | Transplant outdoors | Jun 17 – Jul 18 |
| Cucumbers | Sow outdoors | Jun 17 – Jun 14 |
| Summer squash | Sow outdoors | Jun 3 – Jul 18 |
| Winter squash & pumpkins | Sow outdoors | Jun 17 – Jul 18 |
| Snap beans | Sow outdoors | Jun 3 – Jul 7 |
| Sweet corn | Sow outdoors | Jun 3 – Jun 4 |
| Watermelon & cantaloupe | Sow outdoors | Jun 17 – Jul 18 |
| Okra | Sow outdoors | Jun 10 – Jul 3 |
| Peas | Sow outdoors (spring) | Apr 17 – Jun 2 |
| Potatoes | Plant outdoors (spring) | Apr 17 – Jun 17 |
| Onions | Start seeds indoors (spring) | Mar 6 – Apr 2 |
| Onions | Transplant outdoors (spring) | May 4 – Jun 2 |
| Broccoli | Start seeds indoors (spring) | Mar 30 – May 3 |
| Broccoli | Transplant outdoors (spring) | May 4 – Jun 2 |
| Broccoli | Start seeds indoors (fall) | May 25 – Jun 4 |
| Broccoli | Transplant outdoors (fall) | Jun 24 – Jul 5 |
| Cabbage | Start seeds indoors (spring) | Mar 20 – Apr 17 |
| Cabbage | Transplant outdoors (spring) | Apr 17 – May 18 |
| Cabbage | Start seeds indoors (fall) | May 15 – Jun 14 |
| Cabbage | Transplant outdoors (fall) | Jun 14 – Jul 15 |
| Leaf lettuce | Sow outdoors (spring) | Apr 17 – Jul 3 |
| Leaf lettuce | Sow outdoors (fall) | Jun 14 – Jul 31 |
| Spinach | Sow outdoors (spring) | Apr 10 – May 24 |
| Spinach | Sow outdoors (fall) | Jul 1 – Aug 5 |
| Radishes | Sow outdoors (spring) | Apr 17 – Jun 7 |
| Radishes | Sow outdoors (fall) | Jun 14 – Aug 15 |
| Kale | Sow outdoors (spring) | May 4 – May 24 |
| Kale | Sow outdoors (fall) | Jun 7 – Jul 15 |
| Carrots | Sow outdoors (spring) | May 18 – Jul 3 |
| Carrots | Sow outdoors (fall) | May 15 – Jun 30 |
| Garlic | Plant outdoors (fall) | Sep 14 – Oct 15 |
Where these dates come from
ZIP code 58642 is matched to the NOAA station Dickinson Rch Hq, ND, 14.4 km away, at 2,380 ft elevation (103 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Dickinson Rch Hq, ND (used) | 2,380 ft | May 18 | Sep 24 |
| Taylor 7 Nnw, ND | 2,220 ft | May 23 | Sep 20 |
| Dunn Ctr 1E, ND | 2,187 ft | May 20 | Sep 21 |
| Dickinson, ND | 2,460 ft | May 20 | Sep 22 |
Frost dates near Manning
- Dunn Center, ND 58626 · last May 20, first Sep 21
- Marshall, ND 58644 · last May 23, first Sep 20
- Dickinson, ND 58602 · last May 20, first Sep 22
- Taylor, ND 58656 · last May 9, first Oct 1
- Killdeer, ND 58640 · last May 21, first Sep 23
- Halliday, ND 58636 · last May 20, first Sep 21
- Gladstone, ND 58630 · last May 23, first Sep 20
- Dodge, ND 58625 · last May 20, first Sep 21
Frequently asked questions
- When is the last frost in Manning, ND?
- For ZIP code 58642, the average last spring frost (32°F) is May 18, based on NOAA 1991-2020 climate normals for the Dickinson Rch Hq, ND weather station. There is a 1-in-10 chance of a frost after May 31.
- When is the first frost in Manning, ND?
- The average first fall frost (32°F) is September 24. There is a 1-in-10 chance of frost by September 11, so tender plants are at risk from that point on.
- How long is the growing season in 58642?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 127 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.