Last frost date in Provo, UT
The average last frost in Provo is April 18. By May 5 the chance of another 32°F night drops to 1 in 10. The first fall frost usually arrives about October 21, which leaves 185 frost-free days. An early freeze before October 7 happens one year in ten.
- Safe after (10% risk)
- May 5
- Average first frost
- Oct 21
- Frost-free season
- 185 days
- Hard freeze (28°F) ends
- Mar 31
No frost in the next 7 nights
Later than usual: the average first frost here is October 21.
National Weather Service forecast, updated Oct 22, 12:24 UTC
- ThuOct 2248°
- FriOct 2344°
- SatOct 2445°
- SunOct 2544°
- MonOct 2644°
- TueOct 2744°
- WedOct 2847°
Planting calendar for Provo
Windows count forward or back from the average frost dates above. Click a crop for dates across Utah.
TomatoesApr 25–May 9
PumpkinsMay 2–May 16
SunflowersApr 18–May 9
CucumbersMay 2–May 9
CornApr 25–May 9
Sweet potatoesMay 9–May 23
WatermelonMay 2–May 16
Green beansApr 25–May 16
ZucchiniApr 25–May 9
OkraMay 9–May 23
PeppersMay 2–May 16
BasilApr 25–May 9
Butternut squashApr 25–May 9
CantaloupeMay 2–May 16
EggplantMay 2–May 16
PotatoesMar 21–Apr 4
OnionsMar 7–Mar 28
CarrotsMar 28–May 2
LettuceApr 4–Apr 25
BroccoliMar 21–Apr 4
BeetsMar 21–May 2
PeasMar 7–Mar 21
CabbageMar 21–Apr 4
RadishesMar 14–Apr 25
Brussels sproutsApr 4–Apr 18
SpinachMar 7–Mar 28
CilantroApr 4–Apr 25
KaleMar 21–Apr 4
Collard greensMar 21–Apr 4
TurnipsMar 21–Apr 4
DillApr 18–May 2
CeleryApr 25–May 2
CauliflowerApr 4–Apr 18
LeeksApr 4–Apr 18
Swiss chardApr 4–May 2
ParsleyApr 4–Apr 25
Tulip bulbsOct 7–Nov 11
GarlicSep 30–Nov 4
Daffodil bulbsSep 23–Nov 4
StrawberriesMar 21–Apr 4
AsparagusMar 21–Apr 4Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Mar 31 | Apr 18 | May 5 | Oct 7 | Oct 21 | Nov 4 |
| Hard freeze, 28°F | Mar 8 | Mar 31 | Apr 17 | Oct 19 | Nov 1 | Nov 15 |
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 Provo Byu (USC00427064) sits 0.3 miles from the center of Provo at 4,570 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 Provo, UT?
The average last frost date in Provo is April 18, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after May 5.
When is the first frost in Provo?
The first frost in fall usually comes around October 21. One year in ten it arrives before October 7.
How long is the growing season in Provo?
About 185 days between the average last and first frost.
When should I plant tomatoes in Provo?
Plant tomato seedlings outside from April 25 to May 9. Start seeds indoors six to eight weeks earlier.
Nearby in Utah
- OremApr 19
- SpringvilleApr 18
- Spanish ForkApr 25
- Pleasant GroveApr 17
- American ForkApr 17
- HighlandMay 3
- PaysonMay 4
- Saratoga SpringsApr 30
- LehiApr 30
- Eagle MountainJun 2
- DraperApr 18
- SandyApr 29