FrostDateByZip

Frost dates for 36110Montgomery, AL

The average last spring frost in Montgomery is March 13 and the average first fall frost is November 13, giving a typical growing season of about 244 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Mar 13

Safer after Mar 31 (1-in-10 risk)

Average first fall frost
Nov 13

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

Growing season
244 days

First frost typically in 10 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 5 · Mar 29 · Apr 16Oct 21 · Nov 3 · Nov 18220 days100%
Frost / freeze (32°F)Feb 20 · Mar 13 · Mar 31Oct 31 · Nov 13 · Dec 1244 days100%
Hard freeze (28°F)Jan 30 · Feb 27 · Mar 19Nov 8 · Nov 25 · Dec 24272 days100%

Planting calendar for Montgomery

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 10 – Apr 18
TomatoesTransplant outdoorsMar 29 – Jul 24
PeppersStart seeds indoorsFeb 10 – Mar 13
PeppersTransplant outdoorsApr 12 – May 13
EggplantStart seeds indoorsFeb 27 – Mar 28
EggplantTransplant outdoorsApr 12 – May 13
CucumbersSow outdoorsApr 12 – Aug 3
Summer squashSow outdoorsMar 29 – May 13
Winter squash & pumpkinsSow outdoorsApr 12 – May 13
Snap beansSow outdoorsMar 29 – Aug 26
Sweet cornSow outdoorsMar 29 – Jul 24
Watermelon & cantaloupeSow outdoorsApr 12 – May 13
OkraSow outdoorsApr 5 – Apr 28
PeasSow outdoors (spring)Feb 10 – Mar 28
PotatoesPlant outdoors (spring)Feb 10 – Apr 12
OnionsStart seeds indoors (spring)Dec 30 – Jan 26
OnionsTransplant outdoors (spring)Feb 27 – Mar 28
BroccoliStart seeds indoors (spring)Jan 23 – Feb 26
BroccoliTransplant outdoors (spring)Feb 27 – Mar 28
BroccoliStart seeds indoors (fall)Jul 14 – Jul 24
BroccoliTransplant outdoors (fall)Aug 13 – Aug 24
CabbageStart seeds indoors (spring)Jan 13 – Feb 10
CabbageTransplant outdoors (spring)Feb 10 – Mar 13
CabbageStart seeds indoors (fall)Jul 4 – Aug 3
CabbageTransplant outdoors (fall)Aug 3 – Sep 3
Leaf lettuceSow outdoors (spring)Feb 10 – Apr 28
Leaf lettuceSow outdoors (fall)Aug 3 – Sep 19
SpinachSow outdoors (spring)Feb 3 – Mar 19
SpinachSow outdoors (fall)Aug 20 – Sep 24
RadishesSow outdoors (spring)Feb 10 – Apr 2
RadishesSow outdoors (fall)Aug 3 – Oct 4
KaleSow outdoors (spring)Feb 27 – Mar 19
KaleSow outdoors (fall)Jul 27 – Sep 3
CarrotsSow outdoors (spring)Mar 13 – Apr 28
CarrotsSow outdoors (fall)Jul 4 – Aug 19
GarlicPlant outdoors (fall)Nov 3 – Dec 4

Where these dates come from

ZIP code 36110 is matched to the NOAA station Montgomery Ap, AL, 18.4 km away, at 202 ft elevation (5 ft lower than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Montgomery Ap, AL (used)202 ftMar 13Nov 13
Montgomery 6Sw, AL225 ftMar 4Nov 18
Milstead, AL215 ftMar 25Nov 8
Rockford 3 Ese, AL600 ftMar 25Nov 11

Frost dates near Montgomery

Frequently asked questions

When is the last frost in Montgomery, AL?
For ZIP code 36110, the average last spring frost (32°F) is March 13, based on NOAA 1991-2020 climate normals for the Montgomery Ap, AL weather station. There is a 1-in-10 chance of a frost after March 31.
When is the first frost in Montgomery, AL?
The average first fall frost (32°F) is November 13. 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 36110?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 244 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.