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Will it freeze in Glenolden in the next 7 nights?
No overnight lows at or below 32°F are forecast in Glenolden during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 63°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.
- Tonight 63°F Above 36°F · Light Rain Likely
- Fri, Nov 6 52°F Above 36°F · Partly Cloudy
- Sat, Nov 7 45°F Above 36°F · Partly Cloudy
- Sun, Nov 8 43°F Above 36°F · Mostly Clear
- Mon, Nov 9 42°F Above 36°F · Mostly Clear
- Tue, Nov 10 42°F Above 36°F · Mostly Clear
- Wed, Nov 11 38°F Above 36°F · Partly Cloudy
Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.
Frost and freeze probabilities
Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.
These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.
Average first hard freeze in Glenolden
The median first fall hard-freeze date (28°F) is November 23, from NOAA’s 1991–2020 Climate Normals at Philadelphia Intl Airport. This is the 50% probability date, not a forecast for this year.
| Temperature | Last spring date 90% · 50% · 10% chance of a later freeze | First fall date 10% · 50% · 90% chance of an earlier freeze | Season |
|---|---|---|---|
| 36°F frost possible | Apr 1 · Apr 13 · Apr 28 | Oct 18 · Oct 31 · Nov 12 | 200 days |
| 32°F freeze | Mar 19 · Apr 2 · Apr 13 | Oct 30 · Nov 10 · Nov 24 | 224 days |
| 28°F hard freeze | Mar 7 · Mar 22 · Apr 3 | Nov 7 · Nov 23 · Dec 8 | 246 days |
Average high temperature by month
1991–2020 normals at Philadelphia Intl Airport
Average low temperature by month
Months with lows near or below freezing carry frost risk
Where these frost dates come from
The frost dates for Glenolden, PA come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Philadelphia Intl Airport (station USW00013739, elevation 10 ft), 3.9 mi from Glenolden. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.
Frost dates near Glenolden
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Norwood, PA | 1.2 mi | Apr 2 | Nov 10 |
| Folcroft, PA | 1.2 mi | Apr 2 | Nov 10 |
| Prospect Park, PA | 1.2 mi | Apr 2 | Nov 10 |
| Collingdale, PA | 1.2 mi | Apr 2 | Nov 10 |
| Sharon Hill, PA | 1.2 mi | Apr 2 | Nov 10 |
| Clifton Heights, PA | 1.9 mi | Apr 2 | Nov 10 |
| Darby, PA | 2.5 mi | Apr 2 | Nov 10 |
| Ridley Park, PA | 2.5 mi | Apr 2 | Nov 10 |
| Lansdowne, PA | 3.1 mi | Apr 2 | Nov 10 |
| Swarthmore, PA | 3.1 mi | Apr 2 | Nov 10 |
Frequently asked questions
When is the last frost in Glenolden?
On average, the last spring frost (32°F) in Glenolden is around April 2. In about 1 year in 10 it comes after April 13, and in 9 years in 10 it comes after March 19.
When is the first frost in Glenolden?
The first fall frost (32°F) usually arrives around November 10. There’s a 10% chance of a freeze by October 30 and a 90% chance by November 24.
Can it frost in Glenolden after the last frost date?
Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after April 13.
What growing zone is Glenolden?
Glenolden is in USDA Plant Hardiness Zone 7b (average annual extreme minimum temperature 5 to 10°F), based on the 2023 USDA map for ZIP code 19036. See growing zones in Pennsylvania.
More: all Pennsylvania frost dates · Pennsylvania growing zones · frost vs. freeze