FrostDateByZip

Frost dates for 39211Jackson, MS

The average last spring frost in Jackson is March 14 and the average first fall frost is November 14, giving a typical growing season of about 245 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Mar 14

Safer after Apr 2 (1-in-10 risk)

Average first fall frost
Nov 14

Possible by Oct 31 (1-in-10 risk)

Growing season
245 days

First frost typically in 11 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 9 · Mar 29 · Apr 16Oct 22 · Nov 3 · Nov 20219 days100%
Frost / freeze (32°F)Feb 22 · Mar 14 · Apr 2Oct 31 · Nov 14 · Dec 4245 days100%
Hard freeze (28°F)Feb 2 · Feb 28 · Mar 17Nov 7 · Nov 28 · Dec 26276 days100%

Planting calendar for Jackson

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 indoorsFeb 11 – Apr 19
TomatoesTransplant outdoorsMar 30 – Jul 25
PeppersStart seeds indoorsFeb 11 – Mar 14
PeppersTransplant outdoorsApr 13 – May 14
EggplantStart seeds indoorsFeb 28 – Mar 29
EggplantTransplant outdoorsApr 13 – May 14
CucumbersSow outdoorsApr 13 – Aug 4
Summer squashSow outdoorsMar 30 – May 14
Winter squash & pumpkinsSow outdoorsApr 13 – May 14
Snap beansSow outdoorsMar 30 – Aug 27
Sweet cornSow outdoorsMar 30 – Jul 25
Watermelon & cantaloupeSow outdoorsApr 13 – May 14
OkraSow outdoorsApr 6 – Apr 29
PeasSow outdoors (spring)Feb 11 – Mar 29
PotatoesPlant outdoors (spring)Feb 11 – Apr 13
OnionsStart seeds indoors (spring)Dec 31 – Jan 27
OnionsTransplant outdoors (spring)Feb 28 – Mar 29
BroccoliStart seeds indoors (spring)Jan 24 – Feb 27
BroccoliTransplant outdoors (spring)Feb 28 – Mar 29
BroccoliStart seeds indoors (fall)Jul 15 – Jul 25
BroccoliTransplant outdoors (fall)Aug 14 – Aug 25
CabbageStart seeds indoors (spring)Jan 14 – Feb 11
CabbageTransplant outdoors (spring)Feb 11 – Mar 14
CabbageStart seeds indoors (fall)Jul 5 – Aug 4
CabbageTransplant outdoors (fall)Aug 4 – Sep 4
Leaf lettuceSow outdoors (spring)Feb 11 – Apr 29
Leaf lettuceSow outdoors (fall)Aug 4 – Sep 20
SpinachSow outdoors (spring)Feb 4 – Mar 20
SpinachSow outdoors (fall)Aug 21 – Sep 25
RadishesSow outdoors (spring)Feb 11 – Apr 3
RadishesSow outdoors (fall)Aug 4 – Oct 5
KaleSow outdoors (spring)Feb 28 – Mar 20
KaleSow outdoors (fall)Jul 28 – Sep 4
CarrotsSow outdoors (spring)Mar 14 – Apr 29
CarrotsSow outdoors (fall)Jul 5 – Aug 20
GarlicPlant outdoors (fall)Nov 4 – Dec 5

Where these dates come from

ZIP code 39211 is matched to the NOAA station Jackson Intl Ap, MS, 7.7 km away, at 296 ft elevation (14 ft higher than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Jackson Intl Ap, MS (used)296 ftMar 14Nov 14
Jackson Hawkins Fld, MS342 ftMar 6Nov 19
Canton 4N, MS250 ftMar 22Nov 6
Oakley Exp Stn, MS205 ftMar 16Nov 6

Frost dates near Jackson

Frequently asked questions

When is the last frost in Jackson, MS?
For ZIP code 39211, the average last spring frost (32°F) is March 14, based on NOAA 1991-2020 climate normals for the Jackson Intl Ap, MS weather station. There is a 1-in-10 chance of a frost after April 2.
When is the first frost in Jackson, MS?
The average first fall frost (32°F) is November 14. There is a 1-in-10 chance of frost by October 31, so tender plants are at risk from that point on.
How long is the growing season in 39211?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 245 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.