Frost Dates for Montevallo, AL

Based on data from Alabaster Shelby Co AP weather station, 7 miles away

Elevation: 410 ft

Frost Dates

Last Spring Frost (50%) A 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. March 12
First Fall Frost (50%) A 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. November 16

30% Probability

Only a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.
Last Spring Frost March 20
First Fall Frost November 9

Hard Freeze (28°F)

Last Spring Hard Freeze February 27
First Fall Hard Freeze December 1
33.10°N, 86.86°W © OpenStreetMap

Growing Season

249 Days March 12 to November 16

USDA Hardiness Zone

Hardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.
Zone 8b

Avg. annual minimum: 15 to 20°F

Learn more

Köppen Climate

The Köppen climate classification system categorizes climates based on temperature and precipitation patterns.
Cfa Humid Subtropical

Hot, humid summers and mild winters with rain year-round. Long growing seasons support a wide variety of vegetables, fruits, and ornamentals. The most common climate in the eastern US.

Köppen climate map

Temperature

Avg High Avg Temp Avg Low Light Frost (32°F)
Temperature table
Average monthly temperatures (°F)
Month Avg High Avg Temp Avg Low
January56°46°36°
February61°50°39°
March68°57°46°
April75°64°53°
May83°72°61°
June88°79°69°
July91°81°72°
August91°81°71°
September86°76°66°
October76°65°54°
November66°55°43°
December58°48°38°

Precipitation

Precipitation table
Average monthly precipitation (inches)
MonthPrecipitation
January7.6
February6.8
March7.7
April6.8
May7.0
June6.6
July5.0
August5.8
September5.2
October4.5
November6.7
December7.5

Sunrise / Sunset

Daylight Central Time (CT) Longest: 14h 12m · Shortest: 9h 48m
Sunrise and sunset table
Sunrise, sunset, and daylight on the 15th of each month (Central Time (CT))
Month Sunrise Sunset Daylight
January6:55 AM4:57 PM10h 02m
February6:37 AM5:26 PM10h 49m
March7:04 AM6:49 PM11h 45m
April6:22 AM7:12 PM12h 50m
May5:52 AM7:35 PM13h 43m
June5:42 AM7:53 PM14h 11m
July5:53 AM7:52 PM13h 60m
August6:14 AM7:28 PM13h 14m
September6:36 AM6:47 PM12h 12m
October6:58 AM6:07 PM11h 09m
November6:25 AM4:40 PM10h 15m
December6:48 AM4:37 PM9h 49m

Nearby Stations

Helena, ALMarch 19 - November 8 Thorsby Exp Stn, AL March 21 - November 11 Bessemer 3 Wsw, AL March 23 - November 10 Clanton 2 Ne, AL March 22 - November 10 Childersburg Wtp, AL March 31 - November 2 Birmingham AP, AL March 21 - November 11

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