Frost dates for 83545Peck, ID
The average last spring frost in Peck is April 20 and the average first fall frost is October 20, giving a typical growing season of about 182 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 20
- Average first fall frost
- Oct 20
- Growing season
- 182 days
Safer after May 5 (1-in-10 risk)
Possible by Sep 30 (1-in-10 risk)
Last frost typically in 168 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) | Apr 23 · May 5 · May 19 | Sep 20 · Oct 6 · Oct 24 | 153 days | 100% |
| Frost / freeze (32°F) | Apr 1 · Apr 20 · May 5 | Sep 30 · Oct 20 · Nov 7 | 182 days | 100% |
| Hard freeze (28°F) | Mar 7 · Mar 28 · Apr 18 | Oct 14 · Nov 2 · Nov 23 | 219 days | 100% |
Planting calendar for Peck
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 | Mar 20 – May 26 |
| Tomatoes | Transplant outdoors | May 6 – Jun 30 |
| Peppers | Start seeds indoors | Mar 20 – Apr 20 |
| Peppers | Transplant outdoors | May 20 – Jun 20 |
| Eggplant | Start seeds indoors | Apr 6 – May 5 |
| Eggplant | Transplant outdoors | May 20 – Jun 20 |
| Cucumbers | Sow outdoors | May 20 – Jul 10 |
| Summer squash | Sow outdoors | May 6 – Jun 20 |
| Winter squash & pumpkins | Sow outdoors | May 20 – Jun 20 |
| Snap beans | Sow outdoors | May 6 – Aug 2 |
| Sweet corn | Sow outdoors | May 6 – Jun 30 |
| Watermelon & cantaloupe | Sow outdoors | May 20 – Jun 20 |
| Okra | Sow outdoors | May 13 – Jun 5 |
| Peas | Sow outdoors (spring) | Mar 20 – May 5 |
| Potatoes | Plant outdoors (spring) | Mar 20 – May 20 |
| Onions | Start seeds indoors (spring) | Feb 6 – Mar 5 |
| Onions | Transplant outdoors (spring) | Apr 6 – May 5 |
| Broccoli | Start seeds indoors (spring) | Mar 2 – Apr 5 |
| Broccoli | Transplant outdoors (spring) | Apr 6 – May 5 |
| Broccoli | Start seeds indoors (fall) | Jun 20 – Jun 30 |
| Broccoli | Transplant outdoors (fall) | Jul 20 – Jul 31 |
| Cabbage | Start seeds indoors (spring) | Feb 20 – Mar 20 |
| Cabbage | Transplant outdoors (spring) | Mar 20 – Apr 20 |
| Cabbage | Start seeds indoors (fall) | Jun 10 – Jul 10 |
| Cabbage | Transplant outdoors (fall) | Jul 10 – Aug 10 |
| Leaf lettuce | Sow outdoors (spring) | Mar 20 – Jun 5 |
| Leaf lettuce | Sow outdoors (fall) | Jul 10 – Aug 26 |
| Spinach | Sow outdoors (spring) | Mar 13 – Apr 26 |
| Spinach | Sow outdoors (fall) | Jul 27 – Aug 31 |
| Radishes | Sow outdoors (spring) | Mar 20 – May 10 |
| Radishes | Sow outdoors (fall) | Jul 10 – Sep 10 |
| Kale | Sow outdoors (spring) | Apr 6 – Apr 26 |
| Kale | Sow outdoors (fall) | Jul 3 – Aug 10 |
| Carrots | Sow outdoors (spring) | Apr 20 – Jun 5 |
| Carrots | Sow outdoors (fall) | Jun 10 – Jul 26 |
| Garlic | Plant outdoors (fall) | Oct 10 – Nov 10 |
Where these dates come from
ZIP code 83545 is matched to the NOAA station Dworshak Fish Hatchery, ID, 7.3 km away, at 995 ft elevation (806 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Dworshak Fish Hatchery, ID (used) | 995 ft | Apr 20 | Oct 20 |
| Nezperce, ID | 3,248 ft | May 24 | Sep 20 |
| Winchester, ID | 3,972 ft | May 23 | Sep 25 |
| Elk Rvr, ID | 2,866 ft | May 16 | Sep 23 |
Frost dates near Peck
- Ahsahka, ID 83520 · last May 16, first Sep 23
- Lenore, ID 83541 · last —, first —
- Orofino, ID 83544 · last May 16, first Sep 23
- Reubens, ID 83548 · last May 24, first Sep 20
- Culdesac, ID 83524 · last Apr 6, first Oct 26
- Kendrick, ID 83537 · last Apr 20, first Oct 20
- Juliaetta, ID 83535 · last Apr 6, first Oct 26
- Craigmont, ID 83523 · last May 23, first Sep 25
Frequently asked questions
- When is the last frost in Peck, ID?
- For ZIP code 83545, the average last spring frost (32°F) is April 20, based on NOAA 1991-2020 climate normals for the Dworshak Fish Hatchery, ID weather station. There is a 1-in-10 chance of a frost after May 5.
- When is the first frost in Peck, ID?
- The average first fall frost (32°F) is October 20. There is a 1-in-10 chance of frost by September 30, so tender plants are at risk from that point on.
- How long is the growing season in 83545?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 182 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.