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Will it freeze in Philadelphia in the next 7 nights?
No overnight lows at or below 32°F are forecast in Philadelphia during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 45°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.
2 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 45°F Above 36°F · Partly Cloudy then Patchy Fog
- Fri, Nov 6 41°F Above 36°F · Mostly Clear
- Sat, Nov 7 35°F Frost possible · Mostly Clear then Patchy Frost
- Sun, Nov 8 35°F Frost possible · Partly Cloudy then Patchy Frost
- Mon, Nov 9 37°F Above 36°F · Partly Cloudy
- Tue, Nov 10 37°F Above 36°F · Partly Cloudy
- Wed, Nov 11 39°F Above 36°F · Mostly Clear
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 Philadelphia
The median first fall hard-freeze date (28°F) is November 21, from NOAA’s 1991–2020 Climate Normals at Philadelphia 1 Wsw. 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 | Mar 15 · Apr 3 · Apr 21 | Oct 17 · Oct 30 · Nov 14 | 210 days |
| 32°F freeze | Feb 28 · Mar 20 · Apr 9 | Oct 26 · Nov 9 · Nov 28 | 235 days |
| 28°F hard freeze | Feb 11 · Mar 4 · Mar 25 | Nov 3 · Nov 21 · Dec 14 | 263 days |
Average high temperature by month
1991–2020 normals at Philadelphia 1 Wsw
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 Philadelphia, MS come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Philadelphia 1 Wsw (station USC00226894, elevation 413 ft), 0.6 mi from Philadelphia. 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 Philadelphia
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Louisville, MS | 24 mi | Mar 21 | Nov 13 |
| Kosciusko, MS | 34 mi | Mar 18 | Nov 11 |
| Forest, MS | 35 mi | Mar 28 | Nov 2 |
| Meridian, MS | 37 mi | Mar 16 | Nov 12 |
| Starkville, MS | 50 mi | Mar 23 | Nov 8 |
| Canton, MS | 54 mi | Mar 22 | Nov 6 |
| Brandon, MS | 61 mi | Mar 14 | Nov 14 |
| Madison, MS | 62 mi | Mar 6 | Nov 19 |
| Flowood, MS | 63 mi | Mar 14 | Nov 14 |
| West Point, MS | 63 mi | Mar 23 | Nov 8 |
Frequently asked questions
When is the last frost in Philadelphia?
On average, the last spring frost (32°F) in Philadelphia is around March 20. In about 1 year in 10 it comes after April 9, and in 9 years in 10 it comes after February 28.
When is the first frost in Philadelphia?
The first fall frost (32°F) usually arrives around November 9. There’s a 10% chance of a freeze by October 26 and a 90% chance by November 28.
Can it frost in Philadelphia 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 3.
What growing zone is Philadelphia?
Philadelphia is in USDA Plant Hardiness Zone 8b (average annual extreme minimum temperature 15 to 20°F), based on the 2023 USDA map for ZIP code 39350. See growing zones in Mississippi.
More: all Mississippi frost dates · Mississippi growing zones · frost vs. freeze