Last frost date in West Hartford, CT
In West Hartford, the last spring frost comes around April 17 in an average year. Wait until May 1 if you want 90% odds of no more frost. The first fall frost usually arrives about October 26, which leaves 191 frost-free days. An early freeze before October 12 happens one year in ten.
- Safe after (10% risk)
- May 1
- Average first frost
- Oct 26
- Frost-free season
- 191 days
- Hard freeze (28°F) ends
- Apr 3
Frost likely Fri night, low 31°F
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2237°
- FriOct 2331°frost
- SatOct 2431°frost
- SunOct 2535°possible frost
- MonOct 2643°
- TueOct 2739°
- WedOct 2841°
Planting calendar for West Hartford
Windows count forward or back from the average frost dates above. Click a crop for dates across Connecticut.
TomatoesApr 24–May 8
PumpkinsMay 1–May 15
SunflowersApr 17–May 8
CucumbersMay 1–May 8
CornApr 24–May 8
Sweet potatoesMay 8–May 22
WatermelonMay 1–May 15
Green beansApr 24–May 15
ZucchiniApr 24–May 8
OkraMay 8–May 22
PeppersMay 1–May 15
BasilApr 24–May 8
Butternut squashApr 24–May 8
CantaloupeMay 1–May 15
EggplantMay 1–May 15
PotatoesMar 20–Apr 3
OnionsMar 6–Mar 27
CarrotsMar 27–May 1
LettuceApr 3–Apr 24
BroccoliMar 20–Apr 3
BeetsMar 20–May 1
PeasMar 6–Mar 20
CabbageMar 20–Apr 3
RadishesMar 13–Apr 24
Brussels sproutsApr 3–Apr 17
SpinachMar 6–Mar 27
CilantroApr 3–Apr 24
KaleMar 20–Apr 3
Collard greensMar 20–Apr 3
TurnipsMar 20–Apr 3
DillApr 17–May 1
CeleryApr 24–May 1
CauliflowerApr 3–Apr 17
LeeksApr 3–Apr 17
Swiss chardApr 3–May 1
ParsleyApr 3–Apr 24
Tulip bulbsOct 12–Nov 16
GarlicOct 5–Nov 9
Daffodil bulbsSep 28–Nov 9
StrawberriesMar 20–Apr 3
AsparagusMar 20–Apr 3Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Apr 1 | Apr 17 | May 1 | Oct 12 | Oct 26 | Nov 7 |
| Hard freeze, 28°F | Mar 21 | Apr 3 | Apr 21 | Oct 22 | Nov 5 | Nov 20 |
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 Hartford Brainard Field (USW00014752) sits 5.8 miles from the center of West Hartford at 19 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 West Hartford, CT?
The average last frost date in West Hartford is April 17, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after May 1.
When is the first frost in West Hartford?
The first frost in fall usually comes around October 26. One year in ten it arrives before October 12.
How long is the growing season in West Hartford?
About 191 days between the average last and first frost.
When should I plant tomatoes in West Hartford?
Plant tomato seedlings outside from April 24 to May 8. Start seeds indoors six to eight weeks earlier.
Nearby in Connecticut
- HartfordApr 17
- NewingtonApr 17
- WethersfieldApr 17
- New BritainApr 17
- East HartfordApr 17
- BristolApr 25
- ManchesterApr 17
- MiddletownApr 26
- MeridenApr 26
- TorringtonMay 8
- WaterburyApr 26
- NaugatuckApr 18