Last frost date in Hagerstown, MD
Expect the last frost in Hagerstown around April 11. Frost after April 27 happens in only one year out of ten. The first fall frost usually arrives about October 28, which leaves 199 frost-free days. An early freeze before October 14 happens one year in ten.
- Safe after (10% risk)
- Apr 27
- Average first frost
- Oct 28
- Frost-free season
- 199 days
- Hard freeze (28°F) ends
- Mar 31
Frost possible in low spots Fri night, low 33°F
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2242°
- FriOct 2333°possible frost
- SatOct 2434°possible frost
- SunOct 2537°
- MonOct 2643°
- TueOct 2745°
- WedOct 2844°
Planting calendar for Hagerstown
Windows count forward or back from the average frost dates above. Click a crop for dates across Maryland.
Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Mar 29 | Apr 11 | Apr 27 | Oct 14 | Oct 28 | Nov 11 |
| Hard freeze, 28°F | Mar 14 | Mar 31 | Apr 11 | Oct 26 | Nov 9 | Nov 25 |
Read the spring 10% column as the date after which only one year in ten still gets frost. That is the safer date for tomatoes, peppers and basil.
Where these numbers come from
NOAA station Hagerstown 1 E (USC00181790) sits 1.4 miles from the center of Hagerstown at 532 feet. Its averages cover 1991 to 2020. Low spots, valleys and open fields can keep getting frost a week or two after the station stops; city centers and lakeshores usually get less of it.
Questions
When is the last frost in Hagerstown, MD?
The average last frost date in Hagerstown is April 11, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 27.
When is the first frost in Hagerstown?
The first frost in fall usually comes around October 28. One year in ten it arrives before October 14.
How long is the growing season in Hagerstown?
About 199 days between the average last and first frost.
When should I plant tomatoes in Hagerstown?
Plant tomato seedlings outside from April 18 to May 2. Start seeds indoors six to eight weeks earlier.
Nearby in Maryland
- FrederickApr 2
- Ballenger CreekApr 2
- ClarksburgApr 14
- WestminsterApr 24
- GermantownApr 14
- Montgomery VillageApr 14
- GaithersburgApr 1
- EldersburgApr 2
- North PotomacApr 1
- OlneyApr 1
- RockvilleApr 1
- ReisterstownApr 2