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Will it freeze in Baltimore in the next 7 nights?
No overnight lows at or below 32°F are forecast in Baltimore during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 61°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 61°F Above 36°F · Chance Showers And Thunderstorms
- Fri, Nov 6 50°F Above 36°F · Mostly Cloudy
- Sat, Nov 7 45°F Above 36°F · Mostly Clear
- Sun, Nov 8 43°F Above 36°F · Mostly Clear
- Mon, Nov 9 43°F Above 36°F · Mostly Clear
- Tue, Nov 10 43°F Above 36°F · Mostly Clear
- Wed, Nov 11 40°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 Baltimore
The median first fall hard-freeze date (28°F) is December 5, from NOAA’s 1991–2020 Climate Normals at Md Sci Center Baltimore. 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 22 · Apr 3 · Apr 15 | Oct 29 · Nov 10 · Nov 24 | 221 days |
| 32°F freeze | Mar 8 · Mar 24 · Apr 4 | Nov 7 · Nov 21 · Dec 8 | 244 days |
| 28°F hard freeze | Feb 24 · Mar 11 · Mar 26 | Nov 18 · Dec 5 · Dec 25 | 270 days |
Average high temperature by month
1991–2020 normals at Md Sci Center Baltimore
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 Baltimore, MD come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Md Sci Center Baltimore (station USW00093784, elevation 20 ft), 1.3 mi from Baltimore. 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 Baltimore
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Laurel, MD | 19 mi | Apr 5 | Nov 9 |
| Bel Air, MD | 22 mi | Apr 10 | Oct 30 |
| Annapolis, MD | 24 mi | Mar 27 | Nov 13 |
| Bowie, MD | 25 mi | Apr 22 | Oct 22 |
| Hampstead, MD | 25 mi | Apr 19 | Oct 25 |
| Greenbelt, MD | 25 mi | Apr 10 | Nov 1 |
| New Carrollton, MD | 27 mi | Apr 22 | Oct 22 |
| College Park, MD | 27 mi | Apr 10 | Nov 1 |
| Aberdeen, MD | 28 mi | Apr 10 | Oct 30 |
| Manchester, MD | 29 mi | Apr 19 | Oct 25 |
Frequently asked questions
When is the last frost in Baltimore?
On average, the last spring frost (32°F) in Baltimore is around March 24. In about 1 year in 10 it comes after April 4, and in 9 years in 10 it comes after March 8.
When is the first frost in Baltimore?
The first fall frost (32°F) usually arrives around November 21. There’s a 10% chance of a freeze by November 7 and a 90% chance by December 8.
Can it frost in Baltimore 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 Baltimore?
Baltimore is in USDA Plant Hardiness Zone 8a (average annual extreme minimum temperature 10 to 15°F), based on the 2023 USDA map for ZIP code 21202. See growing zones in Maryland.
More: all Maryland frost dates · Maryland growing zones · UV index today in Baltimore · frost vs. freeze