Frost dates for 56685Waskish, MN
The average last spring frost in Waskish is May 22 and the average first fall frost is September 17, giving a typical growing season of about 117 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 22
- Average first fall frost
- Sep 17
- Growing season
- 117 days
Safer after Jun 5 (1-in-10 risk)
Possible by Sep 2 (1-in-10 risk)
Last frost typically in 207 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 20 · Jun 2 · Jun 24 | Aug 20 · Sep 5 · Sep 19 | 94 days | 100% |
| Frost / freeze (32°F) | May 7 · May 22 · Jun 5 | Sep 2 · Sep 17 · Oct 2 | 117 days | 100% |
| Hard freeze (28°F) | Apr 27 · May 10 · May 25 | Sep 13 · Sep 28 · Oct 14 | 141 days | 100% |
Planting calendar for Waskish
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 21 – Jun 27 |
| Tomatoes | Transplant outdoors | Jun 7 – May 28 |
| Peppers | Start seeds indoors | Apr 21 – May 22 |
| Peppers | Transplant outdoors | Jun 21 – Jul 22 |
| Eggplant | Start seeds indoors | May 8 – Jun 6 |
| Eggplant | Transplant outdoors | Jun 21 – Jul 22 |
| Cucumbers | Sow outdoors | Jun 21 – Jun 7 |
| Summer squash | Sow outdoors | Jun 7 – Jul 22 |
| Winter squash & pumpkins | Sow outdoors | Jun 21 – Jul 22 |
| Snap beans | Sow outdoors | Jun 7 – Jun 30 |
| Sweet corn | Sow outdoors | Jun 7 – May 28 |
| Watermelon & cantaloupe | Sow outdoors | Jun 21 – Jul 22 |
| Okra | Sow outdoors | Jun 14 – Jul 7 |
| Peas | Sow outdoors (spring) | Apr 21 – Jun 6 |
| Potatoes | Plant outdoors (spring) | Apr 21 – Jun 21 |
| Onions | Start seeds indoors (spring) | Mar 10 – Apr 6 |
| Onions | Transplant outdoors (spring) | May 8 – Jun 6 |
| Broccoli | Start seeds indoors (spring) | Apr 3 – May 7 |
| Broccoli | Transplant outdoors (spring) | May 8 – Jun 6 |
| Broccoli | Start seeds indoors (fall) | May 18 – May 28 |
| Broccoli | Transplant outdoors (fall) | Jun 17 – Jun 28 |
| Cabbage | Start seeds indoors (spring) | Mar 24 – Apr 21 |
| Cabbage | Transplant outdoors (spring) | Apr 21 – May 22 |
| Cabbage | Start seeds indoors (fall) | May 8 – Jun 7 |
| Cabbage | Transplant outdoors (fall) | Jun 7 – Jul 8 |
| Leaf lettuce | Sow outdoors (spring) | Apr 21 – Jul 7 |
| Leaf lettuce | Sow outdoors (fall) | Jun 7 – Jul 24 |
| Spinach | Sow outdoors (spring) | Apr 14 – May 28 |
| Spinach | Sow outdoors (fall) | Jun 24 – Jul 29 |
| Radishes | Sow outdoors (spring) | Apr 21 – Jun 11 |
| Radishes | Sow outdoors (fall) | Jun 7 – Aug 8 |
| Kale | Sow outdoors (spring) | May 8 – May 28 |
| Kale | Sow outdoors (fall) | May 31 – Jul 8 |
| Carrots | Sow outdoors (spring) | May 22 – Jul 7 |
| Carrots | Sow outdoors (fall) | May 8 – Jun 23 |
| Garlic | Plant outdoors (fall) | Sep 7 – Oct 8 |
Where these dates come from
ZIP code 56685 is matched to the NOAA station Waskish 4Ne, MN, 6.5 km away, at 1,191 ft elevation (10 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Waskish 4Ne, MN (used) | 1,191 ft | May 22 | Sep 17 |
| Northome 3S, MN | 1,415 ft | May 16 | Sep 26 |
| Red Lake Indian Agcy, MN | 1,216 ft | May 12 | Oct 4 |
| Big Falls, MN | 1,220 ft | May 24 | Sep 20 |
Frost dates near Waskish
- Kelliher, MN 56650 · last May 24, first Sep 17
- Ponemah, MN 56666 · last May 12, first Oct 4
- Mizpah, MN 56660 · last May 16, first Sep 26
- Northome, MN 56661 · last May 16, first Sep 26
- Redby, MN 56670 · last May 12, first Oct 4
- Blackduck, MN 56630 · last May 24, first Sep 17
- Hines, MN 56647 · last May 24, first Sep 17
- Margie, MN 56658 · last May 24, first Sep 20
Frequently asked questions
- When is the last frost in Waskish, MN?
- For ZIP code 56685, the average last spring frost (32°F) is May 22, based on NOAA 1991-2020 climate normals for the Waskish 4Ne, MN weather station. There is a 1-in-10 chance of a frost after June 5.
- When is the first frost in Waskish, MN?
- The average first fall frost (32°F) is September 17. There is a 1-in-10 chance of frost by September 2, so tender plants are at risk from that point on.
- How long is the growing season in 56685?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 117 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.