Last frost date in Orem, UT
In Orem, the last spring frost comes around April 19 in an average year. Wait until May 9 if you want 90% odds of no more frost. The first fall frost usually arrives about October 19, which leaves 182 frost-free days. An early freeze before October 5 happens one year in ten.
- Safe after (10% risk)
- May 9
- Average first frost
- Oct 19
- Frost-free season
- 182 days
- Hard freeze (28°F) ends
- Apr 1
No frost in the next 7 nights
Later than usual: the average first frost here is October 19.
National Weather Service forecast, updated Oct 22, 12:57 UTC
- ThuOct 2246°
- FriOct 2341°
- SatOct 2440°
- SunOct 2540°
- MonOct 2641°
- TueOct 2740°
- WedOct 2843°
Planting calendar for Orem
Windows count forward or back from the average frost dates above. Click a crop for dates across Utah.
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 5–Nov 9
GarlicSep 28–Nov 2
Daffodil bulbsSep 21–Nov 2
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 2 | Apr 19 | May 9 | Oct 5 | Oct 19 | Nov 3 |
| Hard freeze, 28°F | Mar 13 | Apr 1 | Apr 20 | Oct 16 | Oct 31 | 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 Orem Trtmt Plt (USC00426538) sits 2.5 miles from the center of Orem at 4,510 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 Orem, UT?
The average last frost date in Orem is April 19, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after May 9.
When is the first frost in Orem?
The first frost in fall usually comes around October 19. One year in ten it arrives before October 5.
How long is the growing season in Orem?
About 182 days between the average last and first frost.
When should I plant tomatoes in Orem?
Plant tomato seedlings outside from April 26 to May 10. Start seeds indoors six to eight weeks earlier.
Nearby in Utah
- ProvoApr 18
- Pleasant GroveApr 17
- American ForkApr 17
- SpringvilleApr 18
- HighlandMay 3
- Saratoga SpringsApr 30
- LehiApr 30
- Spanish ForkApr 25
- DraperApr 18
- Eagle MountainJun 2
- PaysonMay 4
- SandyApr 29