Frost Dates for Cumberland, MD 21502
Last spring frost May 4 · First fall frost October 10 · 159 frost-free days · USDA Zone 7a
Frost probability for 21502
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 19 | May 4 | April 18 |
| Fall (first frost) | September 26 | October 10 | October 24 |
Dates come from NOAA 1971–2000 freeze probabilities at the nearest reporting station (33.7 km away); the 50% date is the median year.
Month by month in Cumberland
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start the slowest-growing crops indoors: onions, leeks, and celery (10–12 weeks before last frost). |
| March | Start peppers and eggplant indoors 8–10 weeks before your last frost (around May 4). Start tomatoes about two weeks later, 6–8 weeks before last frost. |
| April | Start herbs, basil, and squash indoors (4–6 weeks before frost). Direct sow peas, spinach, and lettuce if soil is workable. |
| May | Last frost around May 4. Transplant cold-hardy crops (broccoli, kale, cabbage). Harden off tomato and pepper seedlings. |
| June | Frost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini. |
| July | Succession plant lettuce and greens. Keep beds weeded and watered consistently. |
| August | Harvest regularly to encourage production. Monitor for pests and disease. |
| September | First fall frost approaching (around October 10). Transplant fall brassicas. Sow spinach, arugula, and radishes. |
| October | First frost around October 10. Harvest tomatoes and peppers before frost. Cover cold-hardy crops with row covers to extend the season. |
| November | Harvest remaining cold-hardy crops: kale, carrots, and beets. Plant garlic bulbs for next year. |
| December | Clean up spent plants. Add compost to beds. Rest, review, and plan next year's garden. |
What grows in a 159-day season
Frequently Asked Questions
What is the last frost date for Cumberland, MD (ZIP 21502)?
The median last spring frost date for Cumberland, MD (ZIP code 21502) is around May 4. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area.
What is the first fall frost date in Cumberland, MD?
The median first fall frost date for Cumberland, MD is around October 10. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses.
How long is the growing season in Cumberland, MD?
The frost-free growing season in Cumberland is about 159 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side.
What USDA hardiness zone is Cumberland, MD?
Based on frost date patterns, Cumberland falls approximately in 7a. USDA hardiness zones are determined by average annual minimum winter temperatures and guide both plant selection and planting timing for your location.
When should I start tomatoes indoors in Cumberland, MD?
Start tomato seeds indoors 6–8 weeks before your last frost date (around May 4). For Cumberland, that's roughly March 9 to March 23. Transplant outdoors 1–2 weeks after your last frost.
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