Last frost date in Greenfield, IN
The average last frost in Greenfield is April 19. By May 7 the chance of another 32°F night drops to 1 in 10. The first fall frost usually arrives about October 22, which leaves 185 frost-free days. An early freeze before October 9 happens one year in ten.
- Safe after (10% risk)
- May 7
- Average first frost
- Oct 22
- Frost-free season
- 185 days
- Hard freeze (28°F) ends
- Apr 7
No frost in the next 7 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2244°
- FriOct 2343°
- SatOct 2443°
- SunOct 2545°
- MonOct 2647°
- TueOct 2746°
- WedOct 2844°
Planting calendar for Greenfield
Windows count forward or back from the average frost dates above. Click a crop for dates across Indiana.
TomatoesApr 26–May 10
PumpkinsMay 3–May 17
SunflowersApr 19–May 10
CucumbersMay 3–May 10
CornApr 26–May 10
Sweet potatoesMay 10–May 24
WatermelonMay 3–May 17
Green beansApr 26–May 17
ZucchiniApr 26–May 10
OkraMay 10–May 24
PeppersMay 3–May 17
BasilApr 26–May 10
Butternut squashApr 26–May 10
CantaloupeMay 3–May 17
EggplantMay 3–May 17
PotatoesMar 22–Apr 5
OnionsMar 8–Mar 29
CarrotsMar 29–May 3
LettuceApr 5–Apr 26
BroccoliMar 22–Apr 5
BeetsMar 22–May 3
PeasMar 8–Mar 22
CabbageMar 22–Apr 5
RadishesMar 15–Apr 26
Brussels sproutsApr 5–Apr 19
SpinachMar 8–Mar 29
CilantroApr 5–Apr 26
KaleMar 22–Apr 5
Collard greensMar 22–Apr 5
TurnipsMar 22–Apr 5
DillApr 19–May 3
CeleryApr 26–May 3
CauliflowerApr 5–Apr 19
LeeksApr 5–Apr 19
Swiss chardApr 5–May 3
ParsleyApr 5–Apr 26
Tulip bulbsOct 8–Nov 12
GarlicOct 1–Nov 5
Daffodil bulbsSep 24–Nov 5
StrawberriesMar 22–Apr 5
AsparagusMar 22–Apr 5Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Apr 6 | Apr 19 | May 7 | Oct 9 | Oct 22 | Nov 1 |
| Hard freeze, 28°F | Mar 24 | Apr 7 | Apr 23 | Oct 21 | Nov 1 | Nov 16 |
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 Greenfield (USC00123527) sits 0.8 miles from the center of Greenfield at 869 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 Greenfield, IN?
The average last frost date in Greenfield is April 19, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after May 7.
When is the first frost in Greenfield?
The first frost in fall usually comes around October 22. One year in ten it arrives before October 9.
How long is the growing season in Greenfield?
About 185 days between the average last and first frost.
When should I plant tomatoes in Greenfield?
Plant tomato seedlings outside from April 26 to May 10. Start seeds indoors six to eight weeks earlier.
Nearby in Indiana
- LawrenceApr 18
- FishersApr 21
- ShelbyvilleApr 17
- IndianapolisApr 20
- NoblesvilleApr 21
- AndersonApr 19
- GreenwoodApr 20
- CarmelApr 21
- FranklinApr 20
- WestfieldApr 21
- ZionsvilleApr 21
- BrownsburgApr 12