Last frost date in Parkville, MD
The average last frost in Parkville is April 2. By April 13 the chance of another 32°F night drops to 1 in 10. The first fall frost usually arrives about November 7, which leaves 220 frost-free days. An early freeze before October 27 happens one year in ten.
- Safe after (10% risk)
- Apr 13
- Average first frost
- Nov 7
- Frost-free season
- 220 days
- Hard freeze (28°F) ends
- Mar 22
No frost in the next 7 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2245°
- FriOct 2337°
- SatOct 2438°
- SunOct 2541°
- MonOct 2647°
- TueOct 2747°
- WedOct 2848°
Planting calendar for Parkville
Windows count forward or back from the average frost dates above. Click a crop for dates across Maryland.
TomatoesApr 9–Apr 23
PumpkinsApr 16–Apr 30
SunflowersApr 2–Apr 23
CucumbersApr 16–Apr 23
CornApr 9–Apr 23
Sweet potatoesApr 23–May 7
WatermelonApr 16–Apr 30
Green beansApr 9–Apr 30
ZucchiniApr 9–Apr 23
OkraApr 23–May 7
PeppersApr 16–Apr 30
BasilApr 9–Apr 23
Butternut squashApr 9–Apr 23
CantaloupeApr 16–Apr 30
EggplantApr 16–Apr 30
PotatoesMar 5–Mar 19
OnionsFeb 19–Mar 12
CarrotsMar 12–Apr 16
LettuceMar 19–Apr 9
BroccoliMar 5–Mar 19
BeetsMar 5–Apr 16
PeasFeb 19–Mar 5
CabbageMar 5–Mar 19
RadishesFeb 26–Apr 9
Brussels sproutsMar 19–Apr 2
SpinachFeb 19–Mar 12
CilantroMar 19–Apr 9
KaleMar 5–Mar 19
Collard greensMar 5–Mar 19
TurnipsMar 5–Mar 19
DillApr 2–Apr 16
CeleryApr 9–Apr 16
CauliflowerMar 19–Apr 2
LeeksMar 19–Apr 2
Swiss chardMar 19–Apr 16
ParsleyMar 19–Apr 9
Tulip bulbsOct 24–Nov 28
GarlicOct 17–Nov 21
Daffodil bulbsOct 10–Nov 21
StrawberriesMar 5–Mar 19
AsparagusMar 5–Mar 19Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Mar 20 | Apr 2 | Apr 13 | Oct 27 | Nov 7 | Nov 21 |
| Hard freeze, 28°F | Mar 8 | Mar 22 | Apr 3 | Nov 6 | Nov 20 | Dec 7 |
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 Cylburn (USC00182308) sits 5.8 miles from the center of Parkville at 235 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 Parkville, MD?
The average last frost date in Parkville is April 2, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 13.
When is the first frost in Parkville?
The first frost in fall usually comes around November 7. One year in ten it arrives before October 27.
How long is the growing season in Parkville?
About 220 days between the average last and first frost.
When should I plant tomatoes in Parkville?
Plant tomato seedlings outside from April 9 to April 23. Start seeds indoors six to eight weeks earlier.
Nearby in Maryland
- CarneyApr 2
- TowsonApr 2
- Perry HallApr 2
- RosedaleMar 24
- BaltimoreMar 24
- Middle RiverMar 24
- CockeysvilleApr 2
- PikesvilleApr 2
- EssexMar 24
- DundalkMar 24
- LochearnApr 2
- Milford MillApr 2