Frost dates for 58794White Earth, ND
The average last spring frost in White Earth is May 11 and the average first fall frost is September 26, giving a typical growing season of about 136 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 11
- Average first fall frost
- Sep 26
- Growing season
- 136 days
Safer after May 24 (1-in-10 risk)
Possible by Sep 13 (1-in-10 risk)
Last frost typically in 196 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 9 · May 21 · Jun 3 | Sep 6 · Sep 19 · Sep 30 | 120 days | 100% |
| Frost / freeze (32°F) | Apr 30 · May 11 · May 24 | Sep 13 · Sep 26 · Oct 9 | 136 days | 100% |
| Hard freeze (28°F) | Apr 16 · May 2 · May 15 | Sep 20 · Oct 5 · Oct 20 | 155 days | 100% |
Planting calendar for White Earth
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 10 – Jun 16 |
| Tomatoes | Transplant outdoors | May 27 – Jun 6 |
| Peppers | Start seeds indoors | Apr 10 – May 11 |
| Peppers | Transplant outdoors | Jun 10 – Jul 11 |
| Eggplant | Start seeds indoors | Apr 27 – May 26 |
| Eggplant | Transplant outdoors | Jun 10 – Jul 11 |
| Cucumbers | Sow outdoors | Jun 10 – Jun 16 |
| Summer squash | Sow outdoors | May 27 – Jul 11 |
| Winter squash & pumpkins | Sow outdoors | Jun 10 – Jul 11 |
| Snap beans | Sow outdoors | May 27 – Jul 9 |
| Sweet corn | Sow outdoors | May 27 – Jun 6 |
| Watermelon & cantaloupe | Sow outdoors | Jun 10 – Jul 11 |
| Okra | Sow outdoors | Jun 3 – Jun 26 |
| Peas | Sow outdoors (spring) | Apr 10 – May 26 |
| Potatoes | Plant outdoors (spring) | Apr 10 – Jun 10 |
| Onions | Start seeds indoors (spring) | Feb 27 – Mar 26 |
| Onions | Transplant outdoors (spring) | Apr 27 – May 26 |
| Broccoli | Start seeds indoors (spring) | Mar 23 – Apr 26 |
| Broccoli | Transplant outdoors (spring) | Apr 27 – May 26 |
| Broccoli | Start seeds indoors (fall) | May 27 – Jun 6 |
| Broccoli | Transplant outdoors (fall) | Jun 26 – Jul 7 |
| Cabbage | Start seeds indoors (spring) | Mar 13 – Apr 10 |
| Cabbage | Transplant outdoors (spring) | Apr 10 – May 11 |
| Cabbage | Start seeds indoors (fall) | May 17 – Jun 16 |
| Cabbage | Transplant outdoors (fall) | Jun 16 – Jul 17 |
| Leaf lettuce | Sow outdoors (spring) | Apr 10 – Jun 26 |
| Leaf lettuce | Sow outdoors (fall) | Jun 16 – Aug 2 |
| Spinach | Sow outdoors (spring) | Apr 3 – May 17 |
| Spinach | Sow outdoors (fall) | Jul 3 – Aug 7 |
| Radishes | Sow outdoors (spring) | Apr 10 – May 31 |
| Radishes | Sow outdoors (fall) | Jun 16 – Aug 17 |
| Kale | Sow outdoors (spring) | Apr 27 – May 17 |
| Kale | Sow outdoors (fall) | Jun 9 – Jul 17 |
| Carrots | Sow outdoors (spring) | May 11 – Jun 26 |
| Carrots | Sow outdoors (fall) | May 17 – Jul 2 |
| Garlic | Plant outdoors (fall) | Sep 16 – Oct 17 |
Where these dates come from
ZIP code 58794 is matched to the NOAA station Tioga 1E, ND, 15.6 km away, at 2,245 ft elevation (6 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Tioga 1E, ND (used) | 2,245 ft | May 11 | Sep 26 |
| Stanley 3 Nnw, ND | 2,280 ft | May 17 | Sep 23 |
| Powers Lake 1N, ND | 2,205 ft | May 18 | Sep 17 |
| Keene 3S, ND | 2,470 ft | May 20 | Sep 20 |
Frost dates near White Earth
- Tioga, ND 58852 · last May 11, first Sep 26
- Ross, ND 58776 · last May 17, first Sep 23
- Stanley, ND 58784 · last May 17, first Sep 23
- Ray, ND 58849 · last May 11, first Sep 26
- Mcgregor, ND 58755 · last May 18, first Sep 17
- Palermo, ND 58769 · last May 17, first Sep 23
- Powers Lake, ND 58773 · last May 18, first Sep 17
- Keene, ND 58847 · last May 20, first Sep 20
Frequently asked questions
- When is the last frost in White Earth, ND?
- For ZIP code 58794, the average last spring frost (32°F) is May 11, based on NOAA 1991-2020 climate normals for the Tioga 1E, ND weather station. There is a 1-in-10 chance of a frost after May 24.
- When is the first frost in White Earth, ND?
- The average first fall frost (32°F) is September 26. 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 58794?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 136 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.