Frost dates for 83341Kimberly, ID
The average last spring frost in Kimberly is May 6 and the average first fall frost is October 3, giving a typical growing season of about 150 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 6
- Average first fall frost
- Oct 3
- Growing season
- 150 days
Safer after May 26 (1-in-10 risk)
Possible by Sep 16 (1-in-10 risk)
Last frost typically in 191 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 7 · May 23 · Jun 11 | Sep 3 · Sep 19 · Oct 2 | 118 days | 100% |
| Frost / freeze (32°F) | Apr 22 · May 6 · May 26 | Sep 16 · Oct 3 · Oct 18 | 150 days | 100% |
| Hard freeze (28°F) | Apr 3 · Apr 20 · May 7 | Oct 1 · Oct 17 · Nov 1 | 177 days | 100% |
Planting calendar for Kimberly
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 5 – Jun 11 |
| Tomatoes | Transplant outdoors | May 22 – Jun 13 |
| Peppers | Start seeds indoors | Apr 5 – May 6 |
| Peppers | Transplant outdoors | Jun 5 – Jul 6 |
| Eggplant | Start seeds indoors | Apr 22 – May 21 |
| Eggplant | Transplant outdoors | Jun 5 – Jul 6 |
| Cucumbers | Sow outdoors | Jun 5 – Jun 23 |
| Summer squash | Sow outdoors | May 22 – Jul 6 |
| Winter squash & pumpkins | Sow outdoors | Jun 5 – Jul 6 |
| Snap beans | Sow outdoors | May 22 – Jul 16 |
| Sweet corn | Sow outdoors | May 22 – Jun 13 |
| Watermelon & cantaloupe | Sow outdoors | Jun 5 – Jul 6 |
| Okra | Sow outdoors | May 29 – Jun 21 |
| Peas | Sow outdoors (spring) | Apr 5 – May 21 |
| Potatoes | Plant outdoors (spring) | Apr 5 – Jun 5 |
| Onions | Start seeds indoors (spring) | Feb 22 – Mar 21 |
| Onions | Transplant outdoors (spring) | Apr 22 – May 21 |
| Broccoli | Start seeds indoors (spring) | Mar 18 – Apr 21 |
| Broccoli | Transplant outdoors (spring) | Apr 22 – May 21 |
| Broccoli | Start seeds indoors (fall) | Jun 3 – Jun 13 |
| Broccoli | Transplant outdoors (fall) | Jul 3 – Jul 14 |
| Cabbage | Start seeds indoors (spring) | Mar 8 – Apr 5 |
| Cabbage | Transplant outdoors (spring) | Apr 5 – May 6 |
| Cabbage | Start seeds indoors (fall) | May 24 – Jun 23 |
| Cabbage | Transplant outdoors (fall) | Jun 23 – Jul 24 |
| Leaf lettuce | Sow outdoors (spring) | Apr 5 – Jun 21 |
| Leaf lettuce | Sow outdoors (fall) | Jun 23 – Aug 9 |
| Spinach | Sow outdoors (spring) | Mar 29 – May 12 |
| Spinach | Sow outdoors (fall) | Jul 10 – Aug 14 |
| Radishes | Sow outdoors (spring) | Apr 5 – May 26 |
| Radishes | Sow outdoors (fall) | Jun 23 – Aug 24 |
| Kale | Sow outdoors (spring) | Apr 22 – May 12 |
| Kale | Sow outdoors (fall) | Jun 16 – Jul 24 |
| Carrots | Sow outdoors (spring) | May 6 – Jun 21 |
| Carrots | Sow outdoors (fall) | May 24 – Jul 9 |
| Garlic | Plant outdoors (fall) | Sep 23 – Oct 24 |
Where these dates come from
ZIP code 83341 is matched to the NOAA station Twin Falls 6 E, ID, 2.5 km away, at 3,960 ft elevation (23 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Twin Falls 6 E, ID (used) | 3,960 ft | May 6 | Oct 3 |
| Twin Falls-Kmvt, ID | 3,670 ft | Apr 30 | Oct 9 |
| Twin Falls Sun Vly Rgnl Ap, ID | 4,151 ft | May 9 | Oct 4 |
| Hazelton, ID | 4,060 ft | May 7 | Oct 5 |
Frost dates near Kimberly
- Hansen, ID 83334 · last May 6, first Oct 3
- Twin Falls, ID 83303 · last Apr 30, first Oct 9
- Eden, ID 83325 · last May 7, first Oct 5
- Murtaugh, ID 83344 · last May 7, first Oct 5
- Hazelton, ID 83335 · last May 7, first Oct 5
- Filer, ID 83328 · last Apr 25, first Oct 15
- Jerome, ID 83338 · last May 2, first Oct 14
- Buhl, ID 83316 · last Apr 25, first Oct 15
Frequently asked questions
- When is the last frost in Kimberly, ID?
- For ZIP code 83341, the average last spring frost (32°F) is May 6, based on NOAA 1991-2020 climate normals for the Twin Falls 6 E, ID weather station. There is a 1-in-10 chance of a frost after May 26.
- When is the first frost in Kimberly, ID?
- The average first fall frost (32°F) is October 3. There is a 1-in-10 chance of frost by September 16, so tender plants are at risk from that point on.
- How long is the growing season in 83341?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 150 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.