FrostDateByZip

Frost dates for 35006Adger, AL

The average last spring frost in Adger is March 23 and the average first fall frost is November 10, giving a typical growing season of about 231 days. Dates are based on NOAA 1991-2020 climate normals.

Average last spring frost
Mar 23

Safer after Apr 11 (1-in-10 risk)

Average first fall frost
Nov 10

Possible by Oct 27 (1-in-10 risk)

Growing season
231 days

First frost typically in 7 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 21 · Apr 6 · Apr 21Oct 18 · Nov 1 · Nov 14208 days100%
Frost / freeze (32°F)Mar 3 · Mar 23 · Apr 11Oct 27 · Nov 10 · Nov 28231 days100%
Hard freeze (28°F)Feb 15 · Mar 9 · Mar 28Nov 4 · Nov 23 · Dec 12257 days100%

Planting calendar for Adger

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 20 – Apr 28
TomatoesTransplant outdoorsApr 8 – Jul 21
PeppersStart seeds indoorsFeb 20 – Mar 23
PeppersTransplant outdoorsApr 22 – May 23
EggplantStart seeds indoorsMar 9 – Apr 7
EggplantTransplant outdoorsApr 22 – May 23
CucumbersSow outdoorsApr 22 – Jul 31
Summer squashSow outdoorsApr 8 – May 23
Winter squash & pumpkinsSow outdoorsApr 22 – May 23
Snap beansSow outdoorsApr 8 – Aug 23
Sweet cornSow outdoorsApr 8 – Jul 21
Watermelon & cantaloupeSow outdoorsApr 22 – May 23
OkraSow outdoorsApr 15 – May 8
PeasSow outdoors (spring)Feb 20 – Apr 7
PotatoesPlant outdoors (spring)Feb 20 – Apr 22
OnionsStart seeds indoors (spring)Jan 9 – Feb 5
OnionsTransplant outdoors (spring)Mar 9 – Apr 7
BroccoliStart seeds indoors (spring)Feb 2 – Mar 8
BroccoliTransplant outdoors (spring)Mar 9 – Apr 7
BroccoliStart seeds indoors (fall)Jul 11 – Jul 21
BroccoliTransplant outdoors (fall)Aug 10 – Aug 21
CabbageStart seeds indoors (spring)Jan 23 – Feb 20
CabbageTransplant outdoors (spring)Feb 20 – Mar 23
CabbageStart seeds indoors (fall)Jul 1 – Jul 31
CabbageTransplant outdoors (fall)Jul 31 – Aug 31
Leaf lettuceSow outdoors (spring)Feb 20 – May 8
Leaf lettuceSow outdoors (fall)Jul 31 – Sep 16
SpinachSow outdoors (spring)Feb 13 – Mar 29
SpinachSow outdoors (fall)Aug 17 – Sep 21
RadishesSow outdoors (spring)Feb 20 – Apr 12
RadishesSow outdoors (fall)Jul 31 – Oct 1
KaleSow outdoors (spring)Mar 9 – Mar 29
KaleSow outdoors (fall)Jul 24 – Aug 31
CarrotsSow outdoors (spring)Mar 23 – May 8
CarrotsSow outdoors (fall)Jul 1 – Aug 16
GarlicPlant outdoors (fall)Oct 31 – Dec 1

Where these dates come from

ZIP code 35006 is matched to the NOAA station Bessemer 3 Wsw, AL, 15.4 km away, at 445 ft elevation (64 ft higher than the ZIP code's center). Nearby stations for comparison:

StationElevationAvg last frostAvg first frost
Bessemer 3 Wsw, AL (used)445 ftMar 23Nov 10
Bankhead L&D, AL280 ftMar 20Nov 11
Helena, AL480 ftMar 19Nov 8
Birmingham Ap, AL615 ftMar 21Nov 11

Frost dates near Adger

Frequently asked questions

When is the last frost in Adger, AL?
For ZIP code 35006, the average last spring frost (32°F) is March 23, based on NOAA 1991-2020 climate normals for the Bessemer 3 Wsw, AL weather station. There is a 1-in-10 chance of a frost after April 11.
When is the first frost in Adger, AL?
The average first fall frost (32°F) is November 10. There is a 1-in-10 chance of frost by October 27, so tender plants are at risk from that point on.
How long is the growing season in 35006?
In half of years, the frost-free season (between the last and first 32°F frost) is at least 231 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.