Last frost date in Rock Hill, SC
The average last frost in Rock Hill is March 27. By April 11 the chance of another 32°F night drops to 1 in 10. The first fall frost usually arrives about November 5, which leaves 225 frost-free days. An early freeze before October 24 happens one year in ten.
- Safe after (10% risk)
- Apr 11
- Average first frost
- Nov 5
- Frost-free season
- 225 days
- Hard freeze (28°F) ends
- Mar 15
No frost in the next 7 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2243°
- FriOct 2344°
- SatOct 2443°
- SunOct 2543°
- MonOct 2642°
- TueOct 2747°
- WedOct 2848°
Planting calendar for Rock Hill
Windows count forward or back from the average frost dates above. Click a crop for dates across South Carolina.
TomatoesApr 3–Apr 17
PumpkinsApr 10–Apr 24
SunflowersMar 27–Apr 17
CucumbersApr 10–Apr 17
CornApr 3–Apr 17
Sweet potatoesApr 17–May 1
WatermelonApr 10–Apr 24
Green beansApr 3–Apr 24
ZucchiniApr 3–Apr 17
OkraApr 17–May 1
PeppersApr 10–Apr 24
BasilApr 3–Apr 17
Butternut squashApr 3–Apr 17
CantaloupeApr 10–Apr 24
EggplantApr 10–Apr 24
PotatoesFeb 27–Mar 13
OnionsFeb 13–Mar 6
CarrotsMar 6–Apr 10
LettuceMar 13–Apr 3
BroccoliFeb 27–Mar 13
BeetsFeb 27–Apr 10
PeasFeb 13–Feb 27
CabbageFeb 27–Mar 13
RadishesFeb 20–Apr 3
Brussels sproutsMar 13–Mar 27
SpinachFeb 13–Mar 6
CilantroMar 13–Apr 3
KaleFeb 27–Mar 13
Collard greensFeb 27–Mar 13
TurnipsFeb 27–Mar 13
DillMar 27–Apr 10
CeleryApr 3–Apr 10
CauliflowerMar 13–Mar 27
LeeksMar 13–Mar 27
Swiss chardMar 13–Apr 10
ParsleyMar 13–Apr 3
Tulip bulbsOct 22–Nov 26
GarlicOct 15–Nov 19
Daffodil bulbsOct 8–Nov 19
StrawberriesFeb 27–Mar 13
AsparagusFeb 27–Mar 13Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Mar 10 | Mar 27 | Apr 11 | Oct 24 | Nov 5 | Nov 23 |
| Hard freeze, 28°F | Feb 23 | Mar 15 | Mar 31 | Nov 2 | Nov 18 | Dec 9 |
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 Winthrop University (USC00389350) sits 0.8 miles from the center of Rock Hill at 650 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 Rock Hill, SC?
The average last frost date in Rock Hill is March 27, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 11.
When is the first frost in Rock Hill?
The first frost in fall usually comes around November 5. One year in ten it arrives before October 24.
How long is the growing season in Rock Hill?
About 225 days between the average last and first frost.
When should I plant tomatoes in Rock Hill?
Plant tomato seedlings outside from April 3 to April 17. Start seeds indoors six to eight weeks earlier.
Nearby in South Carolina
- Fort MillMar 31
- SpartanburgApr 8
- St. AndrewsMar 16
- ColumbiaMar 22
- LexingtonMar 25
- GreerMar 28
- SimpsonvilleMar 29
- TaylorsMar 16
- MauldinMar 28
- Wade HamptonMar 16
- GreenvilleMar 28
- SumterMar 24