Frost Dates for Apollo, PA 15613
Last spring frost May 10 · First fall frost October 8 · 151 frost-free days · USDA Zone 6b
ZIP 15613 has about 12,900 people.
Moderate season: 151 frost-free days. Spring frost risk spans April 24–May 26 (32 days). Fall frost risk spans September 19–October 25 (36 days).
Frost probability for 15613
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 26 | May 10 | April 24 |
| Fall (first frost) | September 19 | October 8 | October 25 |
Dates come from NOAA 1971–2000 freeze probabilities at DERRY 4 SW (34.4 km away); the 50% date is the median year.
Which crops fit a 151-day season in Apollo
In Apollo (151 frost-free days, a moderate season), 34 of 56 planner crops fit outright, 21 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 | 109 | fits: 80 days to maturity, 109 available after May 24. | Jun 8 |
| Pepper | Mar 29 | May 24–May 31 | 109 | fits: 75 days to maturity, 109 available after May 24. | Jun 13 |
| Lettuce | Mar 15 | Apr 12–Apr 19 | 186 | two-plantings: Plant Apr 12 and again by Aug 17; both mature before Oct 15. | Aug 17 |
| Carrots | — | Apr 19–Apr 26 | 193 | fits: 70 days to maturity, 193 available after Apr 19. | Aug 6 |
| Cucumber | Apr 19 | May 24–May 31 | 123 | fits: 60 days to maturity, 123 available after May 24. | Jul 12 |
| Beans | — | May 17–May 31 | 137 | two-plantings: Plant May 17 and again by Jul 19; both mature before Oct 1. | Jul 19 |
| Peas | — | Mar 15–May 24 | 214 | fits: 65 days to maturity, 214 available after Mar 15. | Jul 28 |
| Zucchini | Apr 26 | May 24–May 31 | 123 | fits: 55 days to maturity, 123 available after May 24. | Jul 17 |
| Onion | Feb 15 | Apr 12–Apr 26 | 186 | fits: 100 days to maturity, 186 available after Apr 12. | — |
| Spinach | — | Mar 15–May 3 | 228 | two-plantings: Plant Mar 15 and again by Sep 5; both mature before Oct 29. | Sep 5 |
| Kale | Mar 1 | Apr 12–Apr 26 | 200 | two-plantings: Plant Apr 12 and again by Aug 21; both mature before Oct 29. | Aug 21 |
| Broccoli | Mar 15 | Apr 12–Apr 26 | 186 | fits: 80 days to maturity, 186 available after Apr 12. | Jul 13 |
| Cabbage | Mar 15 | Apr 12–Apr 26 | 200 | fits: 70 days to maturity, 200 available after Apr 12. | Aug 6 |
| Radish | — | Mar 15–Jun 7 | 214 | two-plantings: Plant Mar 15 and again by Sep 6; both mature before Oct 15. | Sep 6 |
| Beets | — | Mar 15–Jun 7 | 214 | two-plantings: Plant Mar 15 and again by Aug 7; both mature before Oct 15. | Aug 7 |
| Potatoes | — | Apr 26–May 3 | 172 | fits: 90 days to maturity, 172 available after Apr 26. | — |
| Garlic | — | Oct 8 | 256 | overwinter: Plant Oct 8 to Oct 29; harvest the following summer. | Oct 29 |
| Strawberry | — | Apr 5–May 31 | 207 | 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 | 123 | fits: 75 days to maturity, 123 available after May 17. | Jun 20 |
| Pumpkin | Apr 26 | May 24–May 24 | 116 | fits: 100 days to maturity, 116 available after May 24. | May 26 |
| Cauliflower | Mar 29 | May 3–May 17 | 165 | fits: 75 days to maturity, 165 available after May 3. | Jul 18 |
| Swiss Chard | Mar 15 | Apr 26–Apr 26 | 172 | two-plantings: Plant Apr 26 and again by Aug 7; both mature before Oct 15. | Aug 7 |
| Arugula | — | Mar 15–Jun 7 | 228 | two-plantings: Plant Mar 15 and again by Sep 5; both mature before Oct 29. | Sep 5 |
| Brussel Sprouts | Mar 15 | Apr 12–Apr 26 | 200 | fits: 100 days to maturity, 200 available after Apr 12. | Jul 7 |
| Butternut Squash | Apr 26 | May 24–May 31 | 116 | fits: 100 days to maturity, 116 available after May 24. | May 26 |
| Eggplant | Mar 22 | May 24–May 31 | 109 | fits: 70 days to maturity, 109 available after May 24. | Jun 18 |
| Okra | Apr 12 | May 17–May 24 | 130 | two-plantings: Plant May 17 and again by Jul 17; both mature before Sep 24. | Jul 17 |
| Basil | Apr 5 | May 31–May 31 | 116 | fits: 60 days to maturity, 116 available after May 31. | Jul 12 |
| Cilantro | — | Apr 12–May 3 | 186 | two-plantings: Plant Apr 12 and again by Aug 12; both mature before Oct 15. | Aug 12 |
| Parsley | Mar 1 | May 17–May 24 | 151 | fits: 70 days to maturity, 151 available after May 17. | Jul 23 |
| Celery | Mar 1 | May 17–May 31 | 151 | fits: 120 days to maturity, 151 available after May 17. | Jun 3 |
| Scallions | Mar 1 | Apr 12–Apr 26 | 200 | two-plantings: Plant Apr 12 and again by Aug 16; both mature before Oct 29. | Aug 16 |
| Turnip | — | Apr 12–Apr 26 | 200 | two-plantings: Plant Apr 12 and again by Aug 26; both mature before Oct 29. | Aug 26 |
| Kohlrabi | — | Mar 29–Apr 12 | 214 | two-plantings: Plant Mar 29 and again by Aug 21; both mature before Oct 29. | Aug 21 |
| Bok Choy | Apr 12 | May 3–May 10 | 165 | two-plantings: Plant May 3 and again by Aug 17; both mature before Oct 15. | Aug 17 |
| Collards | Mar 1 | Apr 12–Apr 26 | 200 | two-plantings: Plant Apr 12 and again by Aug 16; both mature before Oct 29. | Aug 16 |
| Cantaloupe | Apr 26 | May 24–May 31 | 109 | fits: 85 days to maturity, 109 available after May 24. | Jun 3 |
| Chives | Feb 15 | May 17–May 24 | 165 | fits: 90 days to maturity, 165 available after May 17. | — |
| Dill | — | Mar 15–Jun 7 | 214 | two-plantings: Plant Mar 15 and again by Aug 7; both mature before Oct 15. | Aug 7 |
| Oregano | Mar 1 | May 17–May 24 | 165 | fits: 80 days to maturity, 165 available after May 17. | — |
| Rosemary | Feb 15 | May 17–May 24 | 151 | fits: 80 days to maturity, 151 available after May 17. | — |
| Sage | Mar 15 | May 17–May 24 | 165 | fits: 75 days to maturity, 165 available after May 17. | — |
| Thyme | Mar 1 | May 17–May 24 | 165 | fits: 90 days to maturity, 165 available after May 17. | — |
| Calendula | Mar 29 | Apr 26–May 10 | 172 | two-plantings: Plant Apr 26 and again by Aug 12; both mature before Oct 15. | Aug 12 |
| Cosmos | Apr 12 | May 10–May 24 | 137 | two-plantings: Plant May 10 and again by Jul 12; both mature before Sep 24. | Jul 12 |
| Lavender | Feb 15 | May 10–May 24 | 172 | fits: 90 days to maturity, 172 available after May 10. | — |
| Marigolds | Mar 29 | May 10–May 17 | 137 | two-plantings: Plant May 10 and again by Jul 22; both mature before Sep 24. | Jul 22 |
| Melons | Apr 26 | May 24–May 31 | 109 | fits: 85 days to maturity, 109 available after May 24. | Jun 3 |
| Mint | — | May 10–May 24 | 172 | fits: 90 days to maturity, 172 available after May 10. | — |
| Nasturtiums | Apr 12 | May 10–May 17 | 137 | two-plantings: Plant May 10 and again by Jul 17; both mature before Sep 24. | Jul 17 |
| Pole Beans | — | May 17–May 31 | 130 | fits: 65 days to maturity, 130 available after May 17. | Jul 7 |
| Spaghetti Squash | Apr 26 | May 24–May 31 | 116 | fits: 90 days to maturity, 116 available after May 24. | Jun 5 |
| Sunflowers | — | May 10–May 24 | 137 | fits: 70 days to maturity, 137 available after May 10. | Jul 2 |
| Tomatillos | Mar 15 | May 17–May 24 | 116 | fits: 75 days to maturity, 116 available after May 17. | Jun 13 |
| Watermelon | Apr 26 | May 17–May 24 | 116 | fits: 80 days to maturity, 116 available after May 17. | Jun 8 |
| Yellow Squash | Apr 26 | May 24–May 31 | 123 | fits: 55 days to maturity, 123 available after May 24. | Jul 17 |
| Zinnias | Apr 12 | May 10–May 24 | 137 | two-plantings: Plant May 10 and again by Jul 12; both mature before Sep 24. | Jul 12 |
Month by month in Apollo
| 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 26), Pumpkin (May 26). |
| June | Last sowing dates: Cantaloupe (Jun 3), Celery (Jun 3), Melons (Jun 3), Spaghetti Squash (Jun 5), Tomato (Jun 8), Watermelon (Jun 8), +4 more. |
| July | Last sowing dates: Sunflowers (Jul 2), Brussel Sprouts (Jul 7), Pole Beans (Jul 7), Basil (Jul 12), Cosmos (Jul 12), Cucumber (Jul 12), +11 more. |
| August | Last sowing dates: Cabbage (Aug 6), Carrots (Aug 6), Beets (Aug 7), Dill (Aug 7), Swiss Chard (Aug 7), Calendula (Aug 12), +8 more. |
| September | Last sowing dates: Arugula (Sep 5), Spinach (Sep 5), Radish (Sep 6). |
| October | Direct sow from: Garlic (Oct 8). First frost around October 8. Last sowing dates: Garlic (Oct 29). |
| 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 Apollo, PA (ZIP 15613)?
The median last spring frost date for Apollo, PA (ZIP code 15613) 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 Apollo, PA?
The median first fall frost date for Apollo, PA is around October 8. 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 19 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Apollo, PA?
The frost-free growing season in Apollo is about 151 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 Apollo (151 frost-free days, a moderate season), 34 of 56 planner crops fit outright, 21 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Apollo, PA?
Apollo, 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 Apollo, PA?
Start tomatoes indoors Apr 5 and plant out May 24 in Apollo. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Apollo?
Two: plant Apr 12 and again by Aug 17; both mature before Oct 15.
When do I plant garlic in Apollo?
Oct 8 to Oct 29; it overwinters and is ready the following summer.
Which nearby ZIP has a longer season?
New Kensington (ZIP 15068) has 159 frost-free days, 8 more than Apollo (ZIP 15613). See New Kensington ZIP 15068 frost dates
Nearby and related
- Frost dates for New Kensington, PA 15068 (7.7 mi)
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- When to plant in PA
- When to plant Peppers in PA
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- When to plant Butternut Squash in PA
- When to plant Basil in PA
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- Look up another ZIP