Last frost date in Suwanee, GA
Expect the last frost in Suwanee around April 4. Frost after April 19 happens in only one year out of ten. The first fall frost usually arrives about November 4, which leaves 214 frost-free days. An early freeze before October 23 happens one year in ten.
- Safe after (10% risk)
- Apr 19
- Average first frost
- Nov 4
- Frost-free season
- 214 days
- Hard freeze (28°F) ends
- Mar 20
No frost in the next 7 nights
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2248°
- FriOct 2346°
- SatOct 2444°
- SunOct 2545°
- MonOct 2645°
- TueOct 2747°
- WedOct 2848°
Planting calendar for Suwanee
Windows count forward or back from the average frost dates above. Click a crop for dates across Georgia.
Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Mar 16 | Apr 4 | Apr 19 | Oct 23 | Nov 4 | Nov 23 |
| Hard freeze, 28°F | Feb 26 | Mar 20 | Apr 7 | Nov 1 | Nov 15 | Dec 5 |
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 Cumming 2N (USC00092408) sits 12.8 miles from the center of Suwanee at 1,140 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 Suwanee, GA?
The average last frost date in Suwanee is April 4, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after April 19.
When is the first frost in Suwanee?
The first frost in fall usually comes around November 4. One year in ten it arrives before October 23.
How long is the growing season in Suwanee?
About 214 days between the average last and first frost.
When should I plant tomatoes in Suwanee?
Plant tomato seedlings outside from April 11 to April 25. Start seeds indoors six to eight weeks earlier.
Nearby in Georgia
- Sugar HillApr 4
- DuluthMar 25
- LawrencevilleApr 3
- Johns CreekMar 25
- MulberryApr 3
- AlpharettaMar 25
- SnellvilleApr 3
- MiltonApr 4
- DunwoodyMar 25
- TuckerMar 25
- ChambleeMar 25
- Sandy SpringsMar 25