Last frost date in Rotterdam, NY
Expect the last frost in Rotterdam around April 27. Frost after May 11 happens in only one year out of ten. The first fall frost usually arrives about October 15, which leaves 169 frost-free days. An early freeze before October 3 happens one year in ten.
- Safe after (10% risk)
- May 11
- Average first frost
- Oct 15
- Frost-free season
- 169 days
- Hard freeze (28°F) ends
- Apr 16
Frost likely Fri night, low 29°F
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2234°possible frost
- FriOct 2329°frost
- SatOct 2430°frost
- SunOct 2535°possible frost
- MonOct 2641°
- TueOct 2733°possible frost
- WedOct 2837°
Planting calendar for Rotterdam
Windows count forward or back from the average frost dates above. Click a crop for dates across New York.
TomatoesMay 4–May 18
PumpkinsMay 11–May 25
SunflowersApr 27–May 18
CucumbersMay 11–May 18
CornMay 4–May 18
Sweet potatoesMay 18–Jun 1
WatermelonMay 11–May 25
Green beansMay 4–May 25
ZucchiniMay 4–May 18
OkraMay 18–Jun 1
PeppersMay 11–May 25
BasilMay 4–May 18
Butternut squashMay 4–May 18
CantaloupeMay 11–May 25
EggplantMay 11–May 25
PotatoesMar 30–Apr 13
OnionsMar 16–Apr 6
CarrotsApr 6–May 11
LettuceApr 13–May 4
BroccoliMar 30–Apr 13
BeetsMar 30–May 11
PeasMar 16–Mar 30
CabbageMar 30–Apr 13
RadishesMar 23–May 4
Brussels sproutsApr 13–Apr 27
SpinachMar 16–Apr 6
CilantroApr 13–May 4
KaleMar 30–Apr 13
Collard greensMar 30–Apr 13
TurnipsMar 30–Apr 13
DillApr 27–May 11
CeleryMay 4–May 11
CauliflowerApr 13–Apr 27
LeeksApr 13–Apr 27
Swiss chardApr 13–May 11
ParsleyApr 13–May 4
Tulip bulbsOct 1–Nov 5
GarlicSep 24–Oct 29
Daffodil bulbsSep 17–Oct 29
StrawberriesMar 30–Apr 13
AsparagusMar 30–Apr 13Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Apr 16 | Apr 27 | May 11 | Oct 3 | Oct 15 | Nov 1 |
| Hard freeze, 28°F | Apr 3 | Apr 16 | Apr 28 | Oct 11 | Oct 28 | Nov 10 |
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 Albany Airport (USW00014735) sits 8.1 miles from the center of Rotterdam at 312 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 Rotterdam, NY?
The average last frost date in Rotterdam is April 27, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after May 11.
When is the first frost in Rotterdam?
The first frost in fall usually comes around October 15. One year in ten it arrives before October 3.
How long is the growing season in Rotterdam?
About 169 days between the average last and first frost.
When should I plant tomatoes in Rotterdam?
Plant tomato seedlings outside from May 4 to May 18. Start seeds indoors six to eight weeks earlier.
Nearby in New York
- SchenectadyApr 27
- NiskayunaApr 27
- AlbanyApr 27
- TroyApr 19
- Saratoga SpringsMay 2
- KingstonMay 14
- UticaMay 1
- PoughkeepsieApr 21
- RomeMay 6
- NewburghApr 29
- MiddletownApr 21
- Kiryas JoelApr 10