Frost Dates for Latrobe, PA 15650
Last spring frost May 10 · First fall frost October 9 · 152 frost-free days · USDA Zone 6b
ZIP 15650 has about 26,300 people.
Moderate season: 152 frost-free days. Spring frost risk spans April 24–May 26 (32 days). Fall frost risk spans September 22–October 25 (33 days).
Frost probability for 15650
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 26 | May 10 | April 24 |
| Fall (first frost) | September 22 | October 9 | October 25 |
Dates come from NOAA 1971–2000 freeze probabilities at DERRY 4 SW (5.7 km away); the 50% date is the median year.
Which crops fit a 152-day season in Latrobe
In Latrobe (152 frost-free days, a moderate season), 32 of 56 planner crops fit outright, 23 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Apr 5 | May 24–May 31 | 110 | fits: 80 days to maturity, 110 available after May 24. | Jun 9 |
| Pepper | Mar 29 | May 24–May 31 | 110 | fits: 75 days to maturity, 110 available after May 24. | Jun 14 |
| Lettuce | Mar 15 | Apr 12–Apr 19 | 187 | two-plantings: Plant Apr 12 and again by Aug 18; both mature before Oct 16. | Aug 18 |
| Carrots | — | Apr 19–Apr 26 | 194 | fits: 70 days to maturity, 194 available after Apr 19. | Aug 7 |
| Cucumber | Apr 19 | May 24–May 31 | 124 | fits: 60 days to maturity, 124 available after May 24. | Jul 13 |
| Beans | — | May 17–May 31 | 138 | two-plantings: Plant May 17 and again by Jul 20; both mature before Oct 2. | Jul 20 |
| Peas | — | Mar 15–May 24 | 215 | fits: 65 days to maturity, 215 available after Mar 15. | Jul 29 |
| Zucchini | Apr 26 | May 24–May 31 | 124 | two-plantings: Plant May 24 and again by Jul 18; both mature before Sep 25. | Jul 18 |
| Onion | Feb 15 | Apr 12–Apr 26 | 187 | fits: 100 days to maturity, 187 available after Apr 12. | — |
| Spinach | — | Mar 15–May 3 | 229 | two-plantings: Plant Mar 15 and again by Sep 6; both mature before Oct 30. | Sep 6 |
| Kale | Mar 1 | Apr 12–Apr 26 | 201 | two-plantings: Plant Apr 12 and again by Aug 22; both mature before Oct 30. | Aug 22 |
| Broccoli | Mar 15 | Apr 12–Apr 26 | 187 | fits: 80 days to maturity, 187 available after Apr 12. | Jul 14 |
| Cabbage | Mar 15 | Apr 12–Apr 26 | 201 | fits: 70 days to maturity, 201 available after Apr 12. | Aug 7 |
| Radish | — | Mar 15–Jun 7 | 215 | two-plantings: Plant Mar 15 and again by Sep 7; both mature before Oct 16. | Sep 7 |
| Beets | — | Mar 15–Jun 7 | 215 | two-plantings: Plant Mar 15 and again by Aug 8; both mature before Oct 16. | Aug 8 |
| Potatoes | — | Apr 26–May 3 | 173 | fits: 90 days to maturity, 173 available after Apr 26. | — |
| Garlic | — | Oct 9 | 257 | overwinter: Plant Oct 9 to Oct 30; harvest the following summer. | Oct 30 |
| Strawberry | — | Apr 5–May 31 | 208 | perennial: A perennial: plant Apr 5; it fruits from the following year and keeps producing for several years. | — |
| Corn | Apr 12 | May 17–May 24 | 124 | fits: 75 days to maturity, 124 available after May 17. | Jun 21 |
| Pumpkin | Apr 26 | May 24–May 24 | 117 | fits: 100 days to maturity, 117 available after May 24. | May 27 |
| Cauliflower | Mar 29 | May 3–May 17 | 166 | fits: 75 days to maturity, 166 available after May 3. | Jul 19 |
| Swiss Chard | Mar 15 | Apr 26–Apr 26 | 173 | two-plantings: Plant Apr 26 and again by Aug 8; both mature before Oct 16. | Aug 8 |
| Arugula | — | Mar 15–Jun 7 | 229 | two-plantings: Plant Mar 15 and again by Sep 6; both mature before Oct 30. | Sep 6 |
| Brussel Sprouts | Mar 15 | Apr 12–Apr 26 | 201 | fits: 100 days to maturity, 201 available after Apr 12. | Jul 8 |
| Butternut Squash | Apr 26 | May 24–May 31 | 117 | fits: 100 days to maturity, 117 available after May 24. | May 27 |
| Eggplant | Mar 22 | May 24–May 31 | 110 | fits: 70 days to maturity, 110 available after May 24. | Jun 19 |
| Okra | Apr 12 | May 17–May 24 | 131 | two-plantings: Plant May 17 and again by Jul 18; both mature before Sep 25. | Jul 18 |
| Basil | Apr 5 | May 31–May 31 | 117 | fits: 60 days to maturity, 117 available after May 31. | Jul 13 |
| Cilantro | — | Apr 12–May 3 | 187 | two-plantings: Plant Apr 12 and again by Aug 13; both mature before Oct 16. | Aug 13 |
| Parsley | Mar 1 | May 17–May 24 | 152 | fits: 70 days to maturity, 152 available after May 17. | Jul 24 |
| Celery | Mar 1 | May 17–May 31 | 152 | fits: 120 days to maturity, 152 available after May 17. | Jun 4 |
| Scallions | Mar 1 | Apr 12–Apr 26 | 201 | two-plantings: Plant Apr 12 and again by Aug 17; both mature before Oct 30. | Aug 17 |
| Turnip | — | Apr 12–Apr 26 | 201 | two-plantings: Plant Apr 12 and again by Aug 27; both mature before Oct 30. | Aug 27 |
| Kohlrabi | — | Mar 29–Apr 12 | 215 | two-plantings: Plant Mar 29 and again by Aug 22; both mature before Oct 30. | Aug 22 |
| Bok Choy | Apr 12 | May 3–May 10 | 166 | two-plantings: Plant May 3 and again by Aug 18; both mature before Oct 16. | Aug 18 |
| Collards | Mar 1 | Apr 12–Apr 26 | 201 | two-plantings: Plant Apr 12 and again by Aug 17; both mature before Oct 30. | Aug 17 |
| Cantaloupe | Apr 26 | May 24–May 31 | 110 | fits: 85 days to maturity, 110 available after May 24. | Jun 4 |
| Chives | Feb 15 | May 17–May 24 | 166 | fits: 90 days to maturity, 166 available after May 17. | — |
| Dill | — | Mar 15–Jun 7 | 215 | two-plantings: Plant Mar 15 and again by Aug 8; both mature before Oct 16. | Aug 8 |
| Oregano | Mar 1 | May 17–May 24 | 166 | fits: 80 days to maturity, 166 available after May 17. | — |
| Rosemary | Feb 15 | May 17–May 24 | 152 | fits: 80 days to maturity, 152 available after May 17. | — |
| Sage | Mar 15 | May 17–May 24 | 166 | fits: 75 days to maturity, 166 available after May 17. | — |
| Thyme | Mar 1 | May 17–May 24 | 166 | fits: 90 days to maturity, 166 available after May 17. | — |
| Calendula | Mar 29 | Apr 26–May 10 | 173 | two-plantings: Plant Apr 26 and again by Aug 13; both mature before Oct 16. | Aug 13 |
| Cosmos | Apr 12 | May 10–May 24 | 138 | two-plantings: Plant May 10 and again by Jul 13; both mature before Sep 25. | Jul 13 |
| Lavender | Feb 15 | May 10–May 24 | 173 | fits: 90 days to maturity, 173 available after May 10. | — |
| Marigolds | Mar 29 | May 10–May 17 | 138 | two-plantings: Plant May 10 and again by Jul 23; both mature before Sep 25. | Jul 23 |
| Melons | Apr 26 | May 24–May 31 | 110 | fits: 85 days to maturity, 110 available after May 24. | Jun 4 |
| Mint | — | May 10–May 24 | 173 | fits: 90 days to maturity, 173 available after May 10. | — |
| Nasturtiums | Apr 12 | May 10–May 17 | 138 | two-plantings: Plant May 10 and again by Jul 18; both mature before Sep 25. | Jul 18 |
| Pole Beans | — | May 17–May 31 | 131 | fits: 65 days to maturity, 131 available after May 17. | Jul 8 |
| Spaghetti Squash | Apr 26 | May 24–May 31 | 117 | fits: 90 days to maturity, 117 available after May 24. | Jun 6 |
| Sunflowers | — | May 10–May 24 | 138 | fits: 70 days to maturity, 138 available after May 10. | Jul 3 |
| Tomatillos | Mar 15 | May 17–May 24 | 117 | fits: 75 days to maturity, 117 available after May 17. | Jun 14 |
| Watermelon | Apr 26 | May 17–May 24 | 117 | fits: 80 days to maturity, 117 available after May 17. | Jun 9 |
| Yellow Squash | Apr 26 | May 24–May 31 | 124 | two-plantings: Plant May 24 and again by Jul 18; both mature before Sep 25. | Jul 18 |
| Zinnias | Apr 12 | May 10–May 24 | 138 | two-plantings: Plant May 10 and again by Jul 13; both mature before Sep 25. | Jul 13 |
Month by month in Latrobe
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start indoors: Chives (Feb 15), Lavender (Feb 15), Onion (Feb 15), Rosemary (Feb 15). |
| March | Start indoors: Celery (Mar 1), Collards (Mar 1), Kale (Mar 1), Oregano (Mar 1), Parsley (Mar 1), Scallions (Mar 1), +13 more. Direct sow from: Arugula (Mar 15), Beets (Mar 15), Dill (Mar 15), Peas (Mar 15), Radish (Mar 15), Spinach (Mar 15), +1 more. |
| April | Start indoors: Basil (Apr 5), Tomato (Apr 5), Bok Choy (Apr 12), Corn (Apr 12), Cosmos (Apr 12), Nasturtiums (Apr 12), +11 more. Direct sow from: Cilantro (Apr 12), Turnip (Apr 12), Carrots (Apr 19), Potatoes (Apr 26). Transplant from: Broccoli (Apr 12), Brussel Sprouts (Apr 12), Cabbage (Apr 12), Collards (Apr 12), Kale (Apr 12), Lettuce (Apr 12), +4 more. Plant: Strawberry (Apr 5). |
| May | Direct sow from: Sunflowers (May 10), Beans (May 17), Pole Beans (May 17). Transplant from: Bok Choy (May 3), Cauliflower (May 3), Cosmos (May 10), Lavender (May 10), Marigolds (May 10), Mint (May 10), +25 more. Last frost around May 10. Last sowing dates: Butternut Squash (May 27), Pumpkin (May 27). |
| June | Last sowing dates: Cantaloupe (Jun 4), Celery (Jun 4), Melons (Jun 4), Spaghetti Squash (Jun 6), Tomato (Jun 9), Watermelon (Jun 9), +4 more. |
| July | Last sowing dates: Sunflowers (Jul 3), Brussel Sprouts (Jul 8), Pole Beans (Jul 8), Basil (Jul 13), Cosmos (Jul 13), Cucumber (Jul 13), +11 more. |
| August | Last sowing dates: Cabbage (Aug 7), Carrots (Aug 7), Beets (Aug 8), Dill (Aug 8), Swiss Chard (Aug 8), Calendula (Aug 13), +8 more. |
| September | Last sowing dates: Arugula (Sep 6), Spinach (Sep 6), Radish (Sep 7). |
| October | Direct sow from: Garlic (Oct 9). First frost around October 9. Last sowing dates: Garlic (Oct 30). |
| 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. |
Frequently Asked Questions
What is the last frost date for Latrobe, PA (ZIP 15650)?
The median last spring frost date for Latrobe, PA (ZIP code 15650) is around May 10. 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. One year in ten frost ends before April 24; one in ten it runs past May 26.
What is the first fall frost date in Latrobe, PA?
The median first fall frost date for Latrobe, PA is around October 9. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses. The first frost arrives around September 22 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Latrobe, PA?
The frost-free growing season in Latrobe is about 152 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. In Latrobe (152 frost-free days, a moderate season), 32 of 56 planner crops fit outright, 23 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Latrobe, PA?
Latrobe, PA is in USDA hardiness zone 6b (2023 USDA Plant Hardiness Zone Map). Zones come from the average coldest winter temperature, so they tell you which perennials survive the winter; the frost dates on this page tell you when to plant.
When should I start tomatoes indoors in Latrobe, PA?
Start tomatoes indoors Apr 5 and plant out May 24 in Latrobe. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Latrobe?
Two: plant Apr 12 and again by Aug 18; both mature before Oct 16.
When do I plant garlic in Latrobe?
Oct 9 to Oct 30; it overwinters and is ready the following summer.
Which nearby ZIP has a longer season?
Irwin (ZIP 15642) has 166 frost-free days, 14 more than Latrobe (ZIP 15650). See Irwin ZIP 15642 frost dates
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