Fall in zone 6aPhoto: Dietmar Rabich, CC BY-SA 4.0, via Wikimedia Commons
Frost dates for ZIP 16639 (Cambria County, PA)
Average last spring and first fall frost dates with 10%, 50% and 90% odds, from NOAA's 1991–2020 climate normals for the nearest weather station, Prince Gallitzin Sp, PA (5 miles away).
- Average last spring frostMay 1050% chance of a 32°F freeze after this date
- Average first fall frostOct 550% chance of a 32°F freeze by this date
- Growing season (frost-free)149 daysmedian, 32°F threshold
- USDA hardiness zone6a-10 to -5°F avg. coldest night
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Frost and freeze alerts from the NWS forecast for 16639, the spring soil-temperature heads-up for pre-emergent, and a short weekly yard-timing email.
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This week in your yard
As of Oct 18, 2026, from your frost dates, zone and soil temperature. Lawn timing · Vegetables · Pruning · Plants
Soil temperature now
2-inch depth
55°F 55°F or warmer
24-hour average · latest 51°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Rock Springs Pa (28 mi).
4-inch depth
58°F 55°F or warmer
24-hour average · latest 54°F, as of Oct 18, 2:00 AM CDT
Estimate Not a measurement at this ZIP: distance-weighted average of Rock Springs Pa (28 mi).
Fall: Texas A&M AgriLife times fall pre-emergent (for winter weeds such as annual bluegrass) to soil cooling to about 70°F for several days. The 50–55°F band is the spring trigger. Always read and follow the product label.
7-day forecast and frost risk
The latest National Weather Service 7-day forecast and any Frost Advisory or Freeze Warning for 16639 load here. You can also open the NWS forecast for this ZIP.
Pre-emergent
Soil is 58°F at 4 inches (estimated soil temperature, not a station reading). Fall pre-emergent (annual bluegrass, winter weeds): window open as soil cools through the 70s and 60s.
Fertilizer window
Lawn region: North (cool-season). Timing only; always follow the product label.
- Kentucky bluegrass (cool-season): Early fall: Around Labor Day (late August–September); Late fall: Late October–November, before the ground freezes; Late spring: Optional around Memorial Day. Avoid: Early-spring and midsummer feeding (pushes top growth, favors crabgrass).
Plant now
No vegetable planting windows are open this week.
Prune now
No frost-timed pruning windows are open this week.
Spring-flowering shrubs are pruned right after their flowers fade, not by date. See the pruning guide.
Last spring frost odds
| Chance of a 32°F freeze after this date | Date |
|---|---|
| 90% (early: most years still freeze after this) | Apr 25 |
| 50% (the "average" last frost) | May 10 |
| 10% (cautious: only 1 year in 10 freezes later) | May 28 |
Most gardeners plant frost-tender crops (tomatoes, peppers, basil) after the 50% date, and closer to the 10% date for less risk.
First fall frost odds
| Chance the first 32°F freeze has happened by this date | Date |
|---|---|
| 10% (early: 1 year in 10 freezes this soon) | Sep 24 |
| 50% (the "average" first frost) | Oct 5 |
| 90% (late: most years have frozen by now) | Oct 21 |
Light frost, freeze and hard freeze
| Threshold | Last spring (50%) | First fall (50%) |
|---|---|---|
| 36°F (light frost possible on clear, calm nights) | May 24 | Sep 26 |
| 32°F (freeze) | May 10 | Oct 5 |
| 28°F (hard freeze) | Apr 29 | Oct 18 |
n/a means NOAA did not publish a date at that threshold for this station (usually because it rarely gets that cold).
Vegetable planting calendar for 16639
Dates count from your average last spring frost (May 10) and first fall frost (Oct 5). Half of years have a frost after the spring date, so give tender crops (tomatoes, peppers, squash) some slack.
| Crop | Start indoors | Spring planting | Fall planting |
|---|---|---|---|
| Tomato | Mar 15–29 | May 17–31 (transplant) | – |
| Pepper (sweet and hot) | Mar 1–15 | May 24–Jun 7 (transplant) | – |
| Eggplant | Mar 1–15 | May 24–Jun 7 (transplant) | – |
| Tomatillo | Mar 15–29 | May 17–31 (transplant) | – |
| Lettuce | Mar 15–29 | Apr 19–May 10 (transplant) Apr 12–May 24 (sow outdoors) | Aug 10–31 (transplant) Jul 27–Aug 24 (sowing) |
| Spinach | – | Mar 29–Apr 19 (sow outdoors) | Aug 10–31 (sowing) |
| Kale | Mar 15–29 | Apr 12–26 (transplant) Apr 12–26 (sow outdoors) | Jul 13–Aug 10 (transplant) Jun 29–Jul 27 (sowing) |
| Collards | Mar 15–29 | Apr 12–May 10 (transplant) Apr 12–May 10 (sow outdoors) | Jul 13–Aug 10 (transplant) Jun 29–Jul 27 (sowing) |
| Broccoli | Mar 1–15 | Apr 12–26 (transplant) | Jun 29–Jul 27 (transplant) |
| Cabbage | Mar 1–15 | Apr 12–26 (transplant) | Jun 29–Jul 27 (transplant) |
| Cauliflower | Mar 1–15 | Apr 26–May 10 (transplant) | Jun 29–Jul 27 (transplant) |
| Brussels sprouts | Feb 15–Mar 1 | Apr 12–26 (transplant) | Jun 15–Jul 6 (transplant) |
| Kohlrabi | Mar 15–29 | Apr 12–26 (transplant) Apr 12–26 (sow outdoors) | Jul 27–Aug 10 (sowing) |
| Bok choy / Asian greens | – | Apr 12–26 (sow outdoors) | Aug 10–24 (sowing) |
| Arugula | – | Apr 12–May 10 (sow outdoors) | Aug 10–Sep 7 (sowing) |
| Mustard greens | – | Apr 12–May 3 (sow outdoors) | Aug 10–24 (sowing) |
| Swiss chard | Mar 29–Apr 12 | Apr 26–May 17 (transplant) Apr 26–May 24 (sow outdoors) | Jul 27–Aug 10 (sowing) |
| Beet | – | Apr 12–May 10 (sow outdoors) | Jul 27–Aug 10 (sowing) |
| Carrot | – | Apr 19–May 17 (sow outdoors) | Jul 13–27 (sowing) |
| Radish | – | Apr 5–May 17 (sow outdoors) | Aug 24–Sep 7 (sowing) |
| Turnip | – | Apr 12–May 3 (sow outdoors) | Jul 27–Aug 10 (sowing) |
| Parsnip | – | Apr 19–May 10 (sow outdoors) | – |
| Pea (garden, snap, snow) | – | Mar 15–Apr 12 (sow outdoors) | Jul 13–27 (sowing) |
| Onion (bulbing) | Feb 15–Mar 1 | Mar 29–Apr 12 (transplant) | – |
| Green onion / scallion | – | Mar 29–Apr 26 (sow outdoors) | Jul 27–Aug 10 (sowing) |
| Leek | Feb 15–Mar 1 | Apr 12–26 (transplant) | – |
| Garlic | – | – | Aug 24–Sep 21 (sowing) |
| Shallot | – | Mar 29–Apr 12 (transplant) | Aug 24–Sep 21 (sowing) |
| Potato | – | Apr 12–26 (transplant) | Jun 15–29 (transplant) |
| Sweet potato | – | May 31–Jun 14 (transplant) | – |
| Sweet corn | – | May 17–31 (sow outdoors) | – |
| Bean, bush (snap) | – | May 17–31 (sow outdoors) | – |
| Bean, pole | – | May 17–31 (sow outdoors) | – |
| Lima bean | – | May 24–Jun 7 (sow outdoors) | – |
| Southern pea (cowpea, black-eyed pea) | – | May 31–Jun 21 (sow outdoors) | – |
| Cucumber | Apr 12–19 | May 17–31 (transplant) May 17–31 (sow outdoors) | – |
| Summer squash / zucchini | Apr 12–19 | May 17–31 (transplant) May 17–31 (sow outdoors) | – |
| Winter squash | Apr 12–19 | May 17–31 (transplant) May 17–31 (sow outdoors) | – |
| Pumpkin | – | May 17–31 (sow outdoors) | – |
| Watermelon | Apr 12–19 | May 24–Jun 7 (transplant) May 24–Jun 7 (sow outdoors) | – |
| Cantaloupe / muskmelon | Apr 12–19 | May 24–Jun 7 (transplant) May 24–Jun 7 (sow outdoors) | – |
| Okra | Mar 29–Apr 12 | May 24–Jun 7 (transplant) May 24–Jun 7 (sow outdoors) | – |
| Celery | Feb 15–Mar 1 | May 17–24 (transplant) | – |
| Basil | Mar 29–Apr 12 | May 17–31 (transplant) May 17–31 (sow outdoors) | – |
| Cilantro | – | Apr 26–May 24 (sow outdoors) | Aug 10–24 (sowing) |
| Parsley | Mar 1–15 | Apr 26–May 10 (transplant) Apr 19–May 10 (sow outdoors) | – |
| Dill | – | May 10–24 (sow outdoors) | Aug 10–24 (sowing) |
| Sunflower | – | May 10–24 (sow outdoors) | – |
| Asparagus (crowns) | – | Apr 12–26 (transplant) | – |
| Rhubarb (crowns) | – | Apr 12–26 (transplant) | – |
| Strawberry (plants) | – | Apr 12–26 (transplant) | Jul 27–Aug 24 (transplant) |
Typical ranges from university extension planting calendars, adjusted to your frost dates. Probabilities, not guarantees. Fall windows that would overlap spring planting are left out, as are fall crops of frost-tender plants where the frost-free season is under 210 days.
Where these numbers come from
Station: Prince Gallitzin Sp, PA (NOAA GHCN-Daily ID USC00367167), elevation 1,520 ft, 5.2 miles from the ZIP's center point. NOAA completeness flag: S (standard, 24+ years).
Nearby stations
| Station | Distance | Last frost (50%) | First frost (50%) |
|---|---|---|---|
| Altoona 3 W, PA | 13 mi | Apr 25 | Oct 21 |
| Altoona 7 SW, PA | 18 mi | Apr 25 | Oct 20 |
| Philipsburg 2 S, PA | 19 mi | May 13 | Oct 1 |
The average last-frost dates of these stations span 19 days, a rough guide to local variation. See data sources & methods.
Frost questions for 16639
When is the last frost in 16639?
The average (50% chance) last spring freeze of 32°F for ZIP 16639 is May 10. For a more cautious planting date, use May 28, when only 1 year in 10 still sees a later freeze.
When is the first frost in 16639?
The average first fall freeze is October 5. In 1 year in 10 it comes by September 24.
What hardiness zone is 16639?
ZIP 16639 is in USDA zone 6a (-10 to -5°F average coldest winter night), per the 2023 USDA Plant Hardiness Zone Map ZIP listing.
What is the soil temperature in 16639 right now?
This page shows the latest 2-inch and 4-inch soil temperature from the nearest public soil station (USDA SCAN, NOAA USCRN or TexMesonet), or a labeled estimate when no station is close, against the 50–55°F spring pre-emergent band.
Nearby ZIP codes
16619 Blandburg 16627 Coalport 16636 Wopsononock 16640 16616 16680 16671 Ramey 16668 Patton
Other ZIP codes in Cambria County
15714 15722 15737 15738 15760 15762 15773 15775 15901 15902 15904 15905 15906 15909 15921 15922 15925 15927 15930 15931 15934 15938 15940 15942 All Cambria County frost dates · Pennsylvania frost dates
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Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
- Freeze alerts
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Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.