FrostDateByZip

Frost dates for 72157Springfield, AR

The average last spring frost in Springfield is April 2 and the average first fall frost is November 2, giving a typical growing season of about 215 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Apr 2

Safer after Apr 19 (1-in-10 risk)

Average first fall frost
Nov 2

Possible by Oct 20 (1-in-10 risk)

Growing season
215 days

First frost typically in 0 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 28 · Apr 13 · Apr 28Oct 9 · Oct 23 · Nov 5192 days100%
Frost / freeze (32°F)Mar 13 · Apr 2 · Apr 19Oct 20 · Nov 2 · Nov 16215 days100%
Hard freeze (28°F)Feb 27 · Mar 17 · Apr 7Oct 30 · Nov 11 · Nov 29239 days100%

Planting calendar for Springfield

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 2 – May 8
TomatoesTransplant outdoorsApr 18 – Jul 13
PeppersStart seeds indoorsMar 2 – Apr 2
PeppersTransplant outdoorsMay 2 – Jun 2
EggplantStart seeds indoorsMar 19 – Apr 17
EggplantTransplant outdoorsMay 2 – Jun 2
CucumbersSow outdoorsMay 2 – Jul 23
Summer squashSow outdoorsApr 18 – Jun 2
Winter squash & pumpkinsSow outdoorsMay 2 – Jun 2
Snap beansSow outdoorsApr 18 – Aug 15
Sweet cornSow outdoorsApr 18 – Jul 13
Watermelon & cantaloupeSow outdoorsMay 2 – Jun 2
OkraSow outdoorsApr 25 – May 18
PeasSow outdoors (spring)Mar 2 – Apr 17
PotatoesPlant outdoors (spring)Mar 2 – May 2
OnionsStart seeds indoors (spring)Jan 19 – Feb 15
OnionsTransplant outdoors (spring)Mar 19 – Apr 17
BroccoliStart seeds indoors (spring)Feb 12 – Mar 18
BroccoliTransplant outdoors (spring)Mar 19 – Apr 17
BroccoliStart seeds indoors (fall)Jul 3 – Jul 13
BroccoliTransplant outdoors (fall)Aug 2 – Aug 13
CabbageStart seeds indoors (spring)Feb 2 – Mar 2
CabbageTransplant outdoors (spring)Mar 2 – Apr 2
CabbageStart seeds indoors (fall)Jun 23 – Jul 23
CabbageTransplant outdoors (fall)Jul 23 – Aug 23
Leaf lettuceSow outdoors (spring)Mar 2 – May 18
Leaf lettuceSow outdoors (fall)Jul 23 – Sep 8
SpinachSow outdoors (spring)Feb 23 – Apr 8
SpinachSow outdoors (fall)Aug 9 – Sep 13
RadishesSow outdoors (spring)Mar 2 – Apr 22
RadishesSow outdoors (fall)Jul 23 – Sep 23
KaleSow outdoors (spring)Mar 19 – Apr 8
KaleSow outdoors (fall)Jul 16 – Aug 23
CarrotsSow outdoors (spring)Apr 2 – May 18
CarrotsSow outdoors (fall)Jun 23 – Aug 8
GarlicPlant outdoors (fall)Oct 23 – Nov 23

Where these dates come from

ZIP code 72157 is matched to the NOAA station Conway, AR, 19.7 km away, at 312 ft elevation (134 ft lower than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Conway, AR (used)312 ftApr 2Nov 2
Greenbrier, AR338 ftApr 9Oct 25
Morrilton, AR340 ftMar 30Nov 2
Marche, AR272 ftApr 1Nov 1

Frost dates near Springfield

Frequently asked questions

When is the last frost in Springfield, AR?
For ZIP code 72157, the average last spring frost (32°F) is April 2, based on NOAA 1991-2020 climate normals for the Conway, AR weather station. There is a 1-in-10 chance of a frost after April 19.
When is the first frost in Springfield, AR?
The average first fall frost (32°F) is November 2. There is a 1-in-10 chance of frost by October 20, so tender plants are at risk from that point on.
How long is the growing season in 72157?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 215 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.