FrostDateByZip

Frost dates for 74834Chandler, OK

The average last spring frost in Chandler is April 7 and the average first fall frost is October 30, giving a typical growing season of about 205 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Apr 7

Safer after Apr 23 (1-in-10 risk)

Average first fall frost
Oct 30

Possible by Oct 15 (1-in-10 risk)

Growing season
205 days

Last frost typically in 156 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)Apr 5 · Apr 19 · May 4Oct 8 · Oct 21 · Nov 5184 days100%
Frost / freeze (32°F)Mar 23 · Apr 7 · Apr 23Oct 15 · Oct 30 · Nov 15205 days100%
Hard freeze (28°F)Mar 8 · Mar 28 · Apr 12Oct 24 · Nov 7 · Nov 26227 days100%

Planting calendar for Chandler

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 7 – May 13
TomatoesTransplant outdoorsApr 23 – Jul 10
PeppersStart seeds indoorsMar 7 – Apr 7
PeppersTransplant outdoorsMay 7 – Jun 7
EggplantStart seeds indoorsMar 24 – Apr 22
EggplantTransplant outdoorsMay 7 – Jun 7
CucumbersSow outdoorsMay 7 – Jul 20
Summer squashSow outdoorsApr 23 – Jun 7
Winter squash & pumpkinsSow outdoorsMay 7 – Jun 7
Snap beansSow outdoorsApr 23 – Aug 12
Sweet cornSow outdoorsApr 23 – Jul 10
Watermelon & cantaloupeSow outdoorsMay 7 – Jun 7
OkraSow outdoorsApr 30 – May 23
PeasSow outdoors (spring)Mar 7 – Apr 22
PotatoesPlant outdoors (spring)Mar 7 – May 7
OnionsStart seeds indoors (spring)Jan 24 – Feb 20
OnionsTransplant outdoors (spring)Mar 24 – Apr 22
BroccoliStart seeds indoors (spring)Feb 17 – Mar 23
BroccoliTransplant outdoors (spring)Mar 24 – Apr 22
BroccoliStart seeds indoors (fall)Jun 30 – Jul 10
BroccoliTransplant outdoors (fall)Jul 30 – Aug 10
CabbageStart seeds indoors (spring)Feb 7 – Mar 7
CabbageTransplant outdoors (spring)Mar 7 – Apr 7
CabbageStart seeds indoors (fall)Jun 20 – Jul 20
CabbageTransplant outdoors (fall)Jul 20 – Aug 20
Leaf lettuceSow outdoors (spring)Mar 7 – May 23
Leaf lettuceSow outdoors (fall)Jul 20 – Sep 5
SpinachSow outdoors (spring)Feb 28 – Apr 13
SpinachSow outdoors (fall)Aug 6 – Sep 10
RadishesSow outdoors (spring)Mar 7 – Apr 27
RadishesSow outdoors (fall)Jul 20 – Sep 20
KaleSow outdoors (spring)Mar 24 – Apr 13
KaleSow outdoors (fall)Jul 13 – Aug 20
CarrotsSow outdoors (spring)Apr 7 – May 23
CarrotsSow outdoors (fall)Jun 20 – Aug 5
GarlicPlant outdoors (fall)Oct 20 – Nov 20

Where these dates come from

ZIP code 74834 is matched to the NOAA station Chandler, OK, 0.5 km away, at 958 ft elevation (16 ft higher than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Chandler, OK (used)958 ftApr 7Oct 30
Chandler 5Se Mesonet, OK954 ftApr 2Nov 2
Meeker 5 W, OK925 ftApr 4Oct 30
Cushing, OK950 ftApr 1Nov 5

Frost dates near Chandler

Frequently asked questions

When is the last frost in Chandler, OK?
For ZIP code 74834, the average last spring frost (32°F) is April 7, based on NOAA 1991-2020 climate normals for the Chandler, OK weather station. There is a 1-in-10 chance of a frost after April 23.
When is the first frost in Chandler, OK?
The average first fall frost (32°F) is October 30. There is a 1-in-10 chance of frost by October 15, so tender plants are at risk from that point on.
How long is the growing season in 74834?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 205 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.