Frost dates for 16665Newry, PA
The average last spring frost in Newry is April 25 and the average first fall frost is October 20, giving a typical growing season of about 177 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 25
- Average first fall frost
- Oct 20
- Growing season
- 177 days
Safer after May 14 (1-in-10 risk)
Possible by Oct 6 (1-in-10 risk)
Last frost typically in 173 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 21 · May 6 · May 23 | Sep 28 · Oct 8 · Oct 22 | 156 days | 100% |
| Frost / freeze (32°F) | Apr 10 · Apr 25 · May 14 | Oct 6 · Oct 20 · Nov 3 | 177 days | 100% |
| Hard freeze (28°F) | Mar 30 · Apr 12 · May 1 | Oct 16 · Nov 1 · Nov 17 | 202 days | 100% |
Planting calendar for Newry
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 25 – May 31 |
| Tomatoes | Transplant outdoors | May 11 – Jun 30 |
| Peppers | Start seeds indoors | Mar 25 – Apr 25 |
| Peppers | Transplant outdoors | May 25 – Jun 25 |
| Eggplant | Start seeds indoors | Apr 11 – May 10 |
| Eggplant | Transplant outdoors | May 25 – Jun 25 |
| Cucumbers | Sow outdoors | May 25 – Jul 10 |
| Summer squash | Sow outdoors | May 11 – Jun 25 |
| Winter squash & pumpkins | Sow outdoors | May 25 – Jun 25 |
| Snap beans | Sow outdoors | May 11 – Aug 2 |
| Sweet corn | Sow outdoors | May 11 – Jun 30 |
| Watermelon & cantaloupe | Sow outdoors | May 25 – Jun 25 |
| Okra | Sow outdoors | May 18 – Jun 10 |
| Peas | Sow outdoors (spring) | Mar 25 – May 10 |
| Potatoes | Plant outdoors (spring) | Mar 25 – May 25 |
| Onions | Start seeds indoors (spring) | Feb 11 – Mar 10 |
| Onions | Transplant outdoors (spring) | Apr 11 – May 10 |
| Broccoli | Start seeds indoors (spring) | Mar 7 – Apr 10 |
| Broccoli | Transplant outdoors (spring) | Apr 11 – May 10 |
| Broccoli | Start seeds indoors (fall) | Jun 20 – Jun 30 |
| Broccoli | Transplant outdoors (fall) | Jul 20 – Jul 31 |
| Cabbage | Start seeds indoors (spring) | Feb 25 – Mar 25 |
| Cabbage | Transplant outdoors (spring) | Mar 25 – Apr 25 |
| Cabbage | Start seeds indoors (fall) | Jun 10 – Jul 10 |
| Cabbage | Transplant outdoors (fall) | Jul 10 – Aug 10 |
| Leaf lettuce | Sow outdoors (spring) | Mar 25 – Jun 10 |
| Leaf lettuce | Sow outdoors (fall) | Jul 10 – Aug 26 |
| Spinach | Sow outdoors (spring) | Mar 18 – May 1 |
| Spinach | Sow outdoors (fall) | Jul 27 – Aug 31 |
| Radishes | Sow outdoors (spring) | Mar 25 – May 15 |
| Radishes | Sow outdoors (fall) | Jul 10 – Sep 10 |
| Kale | Sow outdoors (spring) | Apr 11 – May 1 |
| Kale | Sow outdoors (fall) | Jul 3 – Aug 10 |
| Carrots | Sow outdoors (spring) | Apr 25 – Jun 10 |
| Carrots | Sow outdoors (fall) | Jun 10 – Jul 26 |
| Garlic | Plant outdoors (fall) | Oct 10 – Nov 10 |
Where these dates come from
ZIP code 16665 is matched to the NOAA station Altoona 7 Sw, PA, 3.1 km away, at 1,180 ft elevation (130 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Altoona 7 Sw, PA (used) | 1,180 ft | Apr 25 | Oct 20 |
| Altoona 3 W, PA | 1,320 ft | Apr 25 | Oct 21 |
| Altoona Blair Co Ap, PA | 1,480 ft | Apr 23 | Oct 21 |
| Ebensburg Sewage Plt, PA | 1,940 ft | May 17 | Oct 2 |
Frost dates near Newry
- Duncansville, PA 16635 · last Apr 25, first Oct 20
- East Freedom, PA 16637 · last Apr 25, first Oct 20
- Hollidaysburg, PA 16648 · last Apr 25, first Oct 20
- Roaring Spring, PA 16673 · last Apr 23, first Oct 21
- Altoona, PA 16603 · last Apr 25, first Oct 20
- Sproul, PA 16682 · last Apr 25, first Oct 20
- Claysburg, PA 16625 · last Apr 23, first Oct 21
- Gallitzin, PA 16641 · last May 17, first Oct 2
Frequently asked questions
- When is the last frost in Newry, PA?
- For ZIP code 16665, the average last spring frost (32°F) is April 25, based on NOAA 1991-2020 climate normals for the Altoona 7 Sw, PA weather station. There is a 1-in-10 chance of a frost after May 14.
- When is the first frost in Newry, PA?
- The average first fall frost (32°F) is October 20. There is a 1-in-10 chance of frost by October 6, so tender plants are at risk from that point on.
- How long is the growing season in 16665?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 177 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.