Frost dates for 21835Linkwood, MD
The average last spring frost in Linkwood is April 8 and the average first fall frost is November 4, giving a typical growing season of about 209 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 8
- Average first fall frost
- Nov 4
- Growing season
- 209 days
Safer after Apr 23 (1-in-10 risk)
Possible by Oct 22 (1-in-10 risk)
First frost typically in 1 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 6 · Apr 21 · May 8 | Oct 10 · Oct 23 · Nov 5 | 183 days | 100% |
| Frost / freeze (32°F) | Mar 24 · Apr 8 · Apr 23 | Oct 22 · Nov 4 · Nov 20 | 209 days | 100% |
| Hard freeze (28°F) | Mar 7 · Mar 27 · Apr 12 | Nov 2 · Nov 17 · Dec 5 | 236 days | 100% |
Planting calendar for Linkwood
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 8 – May 14 |
| Tomatoes | Transplant outdoors | Apr 24 – Jul 15 |
| Peppers | Start seeds indoors | Mar 8 – Apr 8 |
| Peppers | Transplant outdoors | May 8 – Jun 8 |
| Eggplant | Start seeds indoors | Mar 25 – Apr 23 |
| Eggplant | Transplant outdoors | May 8 – Jun 8 |
| Cucumbers | Sow outdoors | May 8 – Jul 25 |
| Summer squash | Sow outdoors | Apr 24 – Jun 8 |
| Winter squash & pumpkins | Sow outdoors | May 8 – Jun 8 |
| Snap beans | Sow outdoors | Apr 24 – Aug 17 |
| Sweet corn | Sow outdoors | Apr 24 – Jul 15 |
| Watermelon & cantaloupe | Sow outdoors | May 8 – Jun 8 |
| Okra | Sow outdoors | May 1 – May 24 |
| Peas | Sow outdoors (spring) | Mar 8 – Apr 23 |
| Potatoes | Plant outdoors (spring) | Mar 8 – May 8 |
| Onions | Start seeds indoors (spring) | Jan 25 – Feb 21 |
| Onions | Transplant outdoors (spring) | Mar 25 – Apr 23 |
| Broccoli | Start seeds indoors (spring) | Feb 18 – Mar 24 |
| Broccoli | Transplant outdoors (spring) | Mar 25 – Apr 23 |
| Broccoli | Start seeds indoors (fall) | Jul 5 – Jul 15 |
| Broccoli | Transplant outdoors (fall) | Aug 4 – Aug 15 |
| Cabbage | Start seeds indoors (spring) | Feb 8 – Mar 8 |
| Cabbage | Transplant outdoors (spring) | Mar 8 – Apr 8 |
| Cabbage | Start seeds indoors (fall) | Jun 25 – Jul 25 |
| Cabbage | Transplant outdoors (fall) | Jul 25 – Aug 25 |
| Leaf lettuce | Sow outdoors (spring) | Mar 8 – May 24 |
| Leaf lettuce | Sow outdoors (fall) | Jul 25 – Sep 10 |
| Spinach | Sow outdoors (spring) | Mar 1 – Apr 14 |
| Spinach | Sow outdoors (fall) | Aug 11 – Sep 15 |
| Radishes | Sow outdoors (spring) | Mar 8 – Apr 28 |
| Radishes | Sow outdoors (fall) | Jul 25 – Sep 25 |
| Kale | Sow outdoors (spring) | Mar 25 – Apr 14 |
| Kale | Sow outdoors (fall) | Jul 18 – Aug 25 |
| Carrots | Sow outdoors (spring) | Apr 8 – May 24 |
| Carrots | Sow outdoors (fall) | Jun 25 – Aug 10 |
| Garlic | Plant outdoors (fall) | Oct 25 – Nov 25 |
Where these dates come from
ZIP code 21835 is matched to the NOAA station Vienna, MD, 13.7 km away, at 10 ft elevation (7 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Vienna, MD (used) | 10 ft | Apr 8 | Nov 4 |
| Royal Oak 2 Ssw, MD | 10 ft | Apr 1 | Nov 7 |
| Salisbury 2N, MD | 20 ft | Apr 2 | Nov 10 |
| Salisbury, MD | 10 ft | Apr 3 | Nov 7 |
Frost dates near Linkwood
- East New Market, MD 21631 · last Apr 8, first Nov 4
- Secretary, MD 21664 · last Apr 8, first Nov 4
- Vienna, MD 21869 · last Apr 8, first Nov 4
- Cambridge, MD 21613 · last Apr 1, first Nov 7
- Hurlock, MD 21643 · last Apr 8, first Nov 4
- Trappe, MD 21673 · last Apr 1, first Nov 7
- Rhodesdale, MD 21659 · last Apr 8, first Nov 4
- Woolford, MD 21677 · last Apr 1, first Nov 7
Frequently asked questions
- When is the last frost in Linkwood, MD?
- For ZIP code 21835, the average last spring frost (32°F) is April 8, based on NOAA 1991-2020 climate normals for the Vienna, MD weather station. There is a 1-in-10 chance of a frost after April 23.
- When is the first frost in Linkwood, MD?
- The average first fall frost (32°F) is November 4. There is a 1-in-10 chance of frost by October 22, so tender plants are at risk from that point on.
- How long is the growing season in 21835?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 209 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.