Frost dates for 72630Diamond City, AR
The average last spring frost in Diamond City is April 15 and the average first fall frost is October 22, giving a typical growing season of about 189 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 15
- Average first fall frost
- Oct 22
- Growing season
- 189 days
Safer after May 1 (1-in-10 risk)
Possible by Oct 7 (1-in-10 risk)
Last frost typically in 163 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 13 · Apr 27 · May 11 | Sep 30 · Oct 12 · Oct 25 | 168 days | 100% |
| Frost / freeze (32°F) | Mar 30 · Apr 15 · May 1 | Oct 7 · Oct 22 · Nov 4 | 189 days | 100% |
| Hard freeze (28°F) | Mar 17 · Apr 4 · Apr 20 | Oct 18 · Nov 1 · Nov 15 | 210 days | 100% |
Planting calendar for Diamond City
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 15 – May 21 |
| Tomatoes | Transplant outdoors | May 1 – Jul 2 |
| Peppers | Start seeds indoors | Mar 15 – Apr 15 |
| Peppers | Transplant outdoors | May 15 – Jun 15 |
| Eggplant | Start seeds indoors | Apr 1 – Apr 30 |
| Eggplant | Transplant outdoors | May 15 – Jun 15 |
| Cucumbers | Sow outdoors | May 15 – Jul 12 |
| Summer squash | Sow outdoors | May 1 – Jun 15 |
| Winter squash & pumpkins | Sow outdoors | May 15 – Jun 15 |
| Snap beans | Sow outdoors | May 1 – Aug 4 |
| Sweet corn | Sow outdoors | May 1 – Jul 2 |
| Watermelon & cantaloupe | Sow outdoors | May 15 – Jun 15 |
| Okra | Sow outdoors | May 8 – May 31 |
| Peas | Sow outdoors (spring) | Mar 15 – Apr 30 |
| Potatoes | Plant outdoors (spring) | Mar 15 – May 15 |
| Onions | Start seeds indoors (spring) | Feb 1 – Feb 28 |
| Onions | Transplant outdoors (spring) | Apr 1 – Apr 30 |
| Broccoli | Start seeds indoors (spring) | Feb 25 – Mar 31 |
| Broccoli | Transplant outdoors (spring) | Apr 1 – Apr 30 |
| Broccoli | Start seeds indoors (fall) | Jun 22 – Jul 2 |
| Broccoli | Transplant outdoors (fall) | Jul 22 – Aug 2 |
| Cabbage | Start seeds indoors (spring) | Feb 15 – Mar 15 |
| Cabbage | Transplant outdoors (spring) | Mar 15 – Apr 15 |
| Cabbage | Start seeds indoors (fall) | Jun 12 – Jul 12 |
| Cabbage | Transplant outdoors (fall) | Jul 12 – Aug 12 |
| Leaf lettuce | Sow outdoors (spring) | Mar 15 – May 31 |
| Leaf lettuce | Sow outdoors (fall) | Jul 12 – Aug 28 |
| Spinach | Sow outdoors (spring) | Mar 8 – Apr 21 |
| Spinach | Sow outdoors (fall) | Jul 29 – Sep 2 |
| Radishes | Sow outdoors (spring) | Mar 15 – May 5 |
| Radishes | Sow outdoors (fall) | Jul 12 – Sep 12 |
| Kale | Sow outdoors (spring) | Apr 1 – Apr 21 |
| Kale | Sow outdoors (fall) | Jul 5 – Aug 12 |
| Carrots | Sow outdoors (spring) | Apr 15 – May 31 |
| Carrots | Sow outdoors (fall) | Jun 12 – Jul 28 |
| Garlic | Plant outdoors (fall) | Oct 12 – Nov 12 |
Where these dates come from
ZIP code 72630 is matched to the NOAA station Lead Hill, AR, 5 km away, at 830 ft elevation (23 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Lead Hill, AR (used) | 830 ft | Apr 15 | Oct 22 |
| Branson Ap, MO | 1,286 ft | Apr 8 | Nov 2 |
| Ozark Beach, MO | 834 ft | Apr 6 | Oct 31 |
| Harrison Boone Co Ap, AR | 1,374 ft | Apr 3 | Oct 30 |
Frost dates near Diamond City
- Protem, MO 65733 · last Apr 15, first Oct 22
- Lead Hill, AR 72644 · last Apr 15, first Oct 22
- Peel, AR 72668 · last Apr 15, first Oct 22
- Cedarcreek, MO 65627 · last Apr 6, first Oct 31
- Rueter, MO 65744 · last Apr 6, first Oct 31
- Bergman, AR 72615 · last Apr 3, first Oct 30
- Kirbyville, MO 65679 · last Apr 6, first Oct 31
- Omaha, AR 72662 · last Apr 8, first Nov 2
Frequently asked questions
- When is the last frost in Diamond City, AR?
- For ZIP code 72630, the average last spring frost (32°F) is April 15, based on NOAA 1991-2020 climate normals for the Lead Hill, AR weather station. There is a 1-in-10 chance of a frost after May 1.
- When is the first frost in Diamond City, AR?
- The average first fall frost (32°F) is October 22. There is a 1-in-10 chance of frost by October 7, so tender plants are at risk from that point on.
- How long is the growing season in 72630?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 189 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.