FrostDateByZip

Frost dates for 84774Toquerville, UT

The average last spring frost in Toquerville is April 1 and the average first fall frost is November 5, giving a typical growing season of about 217 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Apr 1

Safer after Apr 24 (1-in-10 risk)

Average first fall frost
Nov 5

Possible by Oct 23 (1-in-10 risk)

Growing season
217 days

First frost typically in 9 days

Frost risk by date

NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.

Spring dates: chance of a frost AFTER the date. Fall dates: chance of a frost BEFORE the date.
TemperatureLast spring: 90% / 50% / 10% chanceFirst fall: 10% / 50% / 90% chanceGrowing season (50%)Years with at least one
Light frost (36°F)Mar 30 · Apr 20 · May 9Oct 15 · Oct 27 · Nov 8191 days100%
Frost / freeze (32°F)Mar 5 · Apr 1 · Apr 24Oct 23 · Nov 5 · Nov 17217 days100%
Hard freeze (28°F)Feb 12 · Mar 4 · Apr 2Nov 1 · Nov 15 · Nov 28254 days100%

Planting calendar for Toquerville

Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.

CropTaskWindow
TomatoesStart seeds indoorsMar 1 – May 7
TomatoesTransplant outdoorsApr 17 – Jul 16
PeppersStart seeds indoorsMar 1 – Apr 1
PeppersTransplant outdoorsMay 1 – Jun 1
EggplantStart seeds indoorsMar 18 – Apr 16
EggplantTransplant outdoorsMay 1 – Jun 1
CucumbersSow outdoorsMay 1 – Jul 26
Summer squashSow outdoorsApr 17 – Jun 1
Winter squash & pumpkinsSow outdoorsMay 1 – Jun 1
Snap beansSow outdoorsApr 17 – Aug 18
Sweet cornSow outdoorsApr 17 – Jul 16
Watermelon & cantaloupeSow outdoorsMay 1 – Jun 1
OkraSow outdoorsApr 24 – May 17
PeasSow outdoors (spring)Mar 1 – Apr 16
PotatoesPlant outdoors (spring)Mar 1 – May 1
OnionsStart seeds indoors (spring)Jan 18 – Feb 14
OnionsTransplant outdoors (spring)Mar 18 – Apr 16
BroccoliStart seeds indoors (spring)Feb 11 – Mar 17
BroccoliTransplant outdoors (spring)Mar 18 – Apr 16
BroccoliStart seeds indoors (fall)Jul 6 – Jul 16
BroccoliTransplant outdoors (fall)Aug 5 – Aug 16
CabbageStart seeds indoors (spring)Feb 1 – Mar 1
CabbageTransplant outdoors (spring)Mar 1 – Apr 1
CabbageStart seeds indoors (fall)Jun 26 – Jul 26
CabbageTransplant outdoors (fall)Jul 26 – Aug 26
Leaf lettuceSow outdoors (spring)Mar 1 – May 17
Leaf lettuceSow outdoors (fall)Jul 26 – Sep 11
SpinachSow outdoors (spring)Feb 22 – Apr 7
SpinachSow outdoors (fall)Aug 12 – Sep 16
RadishesSow outdoors (spring)Mar 1 – Apr 21
RadishesSow outdoors (fall)Jul 26 – Sep 26
KaleSow outdoors (spring)Mar 18 – Apr 7
KaleSow outdoors (fall)Jul 19 – Aug 26
CarrotsSow outdoors (spring)Apr 1 – May 17
CarrotsSow outdoors (fall)Jun 26 – Aug 11
GarlicPlant outdoors (fall)Oct 26 – Nov 26

Where these dates come from

ZIP code 84774 is matched to the NOAA station La Verkin, UT, 6 km away, at 3,194 ft elevation (189 ft lower than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
La Verkin, UT (used)3,194 ftApr 1Nov 5
New Harmony, UT5,167 ftMay 9Oct 11
Zion Np, UT4,038 ftApr 13Nov 2
St George, UT2,857 ftMar 14Nov 10

Frost dates near Toquerville

Frequently asked questions

When is the last frost in Toquerville, UT?
For ZIP code 84774, the average last spring frost (32°F) is April 1, based on NOAA 1991-2020 climate normals for the La Verkin, UT weather station. There is a 1-in-10 chance of a frost after April 24.
When is the first frost in Toquerville, UT?
The average first fall frost (32°F) is November 5. There is a 1-in-10 chance of frost by October 23, so tender plants are at risk from that point on.
How long is the growing season in 84774?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 217 days long.
Are these frost dates a forecast?
No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.