Last frost date in North Salt Lake, UT
Expect the last frost in North Salt Lake around April 24. Frost after May 14 happens in only one year out of ten. The first fall frost usually arrives about October 19, which leaves 178 frost-free days. An early freeze before October 5 happens one year in ten.
- Safe after (10% risk)
- May 14
- Average first frost
- Oct 19
- Frost-free season
- 178 days
- Hard freeze (28°F) ends
- Apr 7
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 2249°
- FriOct 2344°
- SatOct 2442°
- SunOct 2541°
- MonOct 2643°
- TueOct 2742°
- WedOct 2844°
Planting calendar for North Salt Lake
Windows count forward or back from the average frost dates above. Click a crop for dates across Utah.
TomatoesMay 1–May 15
PumpkinsMay 8–May 22
SunflowersApr 24–May 15
CucumbersMay 8–May 15
CornMay 1–May 15
Sweet potatoesMay 15–May 29
WatermelonMay 8–May 22
Green beansMay 1–May 22
ZucchiniMay 1–May 15
OkraMay 15–May 29
PeppersMay 8–May 22
BasilMay 1–May 15
Butternut squashMay 1–May 15
CantaloupeMay 8–May 22
EggplantMay 8–May 22
PotatoesMar 27–Apr 10
OnionsMar 13–Apr 3
CarrotsApr 3–May 8
LettuceApr 10–May 1
BroccoliMar 27–Apr 10
BeetsMar 27–May 8
PeasMar 13–Mar 27
CabbageMar 27–Apr 10
RadishesMar 20–May 1
Brussels sproutsApr 10–Apr 24
SpinachMar 13–Apr 3
CilantroApr 10–May 1
KaleMar 27–Apr 10
Collard greensMar 27–Apr 10
TurnipsMar 27–Apr 10
DillApr 24–May 8
CeleryMay 1–May 8
CauliflowerApr 10–Apr 24
LeeksApr 10–Apr 24
Swiss chardApr 10–May 8
ParsleyApr 10–May 1
Tulip bulbsOct 5–Nov 9
GarlicSep 28–Nov 2
Daffodil bulbsSep 21–Nov 2
StrawberriesMar 27–Apr 10
AsparagusMar 27–Apr 10Frost probabilities
| Threshold | Spring, 90% chance later | Spring, 50% | Spring, 10% | Fall, 10% chance earlier | Fall, 50% | Fall, 90% |
|---|---|---|---|---|---|---|
| Light frost, 32°F | Apr 5 | Apr 24 | May 14 | Oct 5 | Oct 19 | Nov 4 |
| Hard freeze, 28°F | Mar 15 | Apr 7 | Apr 28 | Oct 16 | Nov 1 | Nov 17 |
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 Bountiful-val Verda (USC00420820) sits 1.6 miles from the center of North Salt Lake at 4,540 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 North Salt Lake, UT?
The average last frost date in North Salt Lake is April 24, based on NOAA 1991–2020 climate normals. There is a 10% chance of frost after May 14.
When is the first frost in North Salt Lake?
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 North Salt Lake?
About 178 days between the average last and first frost.
When should I plant tomatoes in North Salt Lake?
Plant tomato seedlings outside from May 1 to May 15. Start seeds indoors six to eight weeks earlier.
Nearby in Utah
- BountifulApr 25
- Salt Lake CityMar 31
- FarmingtonApr 19
- South Salt LakeMar 31
- MillcreekApr 25
- West Valley CityApr 8
- KaysvilleApr 19
- TaylorsvilleMar 31
- MurrayApr 29
- HolladayApr 29
- KearnsApr 8
- MagnaApr 3