Frost dates / Alabama / Auburn

Frost dates in Auburn, AL

The station on this page is AUBURN NO.2, AL US (USC00010425), 1.8 miles from the city point. Population in the Census 2024 estimate is 83,757.

Zone 8bUSDA average annual extreme minimum 15°F to 20°F, from ZIP 36849 (0.7 miles from the city point used on this page).

Median last 32°F is March 13. Median first 32°F is November 17. The 50% growing-season length is 246 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Last 32°F in spring

NCEI’s probability is the chance the last spring minimum of 32°F or lower occurs on or after the date.

Probability	Date	How to read it
90%	February 21	Earlier date. A last 32°F on or after this day is common.
50%	March 13	Median.
10%	April 3	Later date. A last 32°F on or after this day is uncommon.

First 32°F in fall

NCEI’s probability is the chance the first autumn minimum of 32°F or lower occurs on or before the date.

Probability	Date	How to read it
10%	November 1	Earlier date. A first 32°F on or before this day is uncommon.
50%	November 17	Median.
90%	December 4	Later date. A first 32°F on or before this day is common.

32°F growing-season length

Days between the last spring 32°F and the first autumn 32°F. The figure is a length the season meets or exceeds at that probability, from NCEI, not a subtraction done on this site.

Probability the season is at least this long	Days
10%	275
50%	246
90%	222

28°F threshold

	10%	50%	90%
Last, on or after	March 19	February 28	February 1
First, on or before	November 11	December 1	December 29
Season at least	310 days	277 days	248 days

36°F threshold

	10%	50%	90%
Last, on or after	April 16	March 29	March 8
First, on or before	October 26	November 7	November 21
Season at least	247 days	223 days	202 days

Station AUBURN NO.2, AL US (USC00010425). Completeness flag R, 22 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 100%. Freeze dates are conditional on that threshold occurring. Elevation 166.1 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

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Auburn, AL

Zone 8bAverage annual extreme minimum 15°F to 20°F

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Alabama. Nearest qualified station: AUBURN NO.2, AL US (USC00010425), 1.8 miles. Median last 32°F March 13. Median first 32°F November 17. The 50% growing-season length is 246 days.

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32°F probabilities at this station

	10%	50%	90%
Last 32°F on or after	April 3	March 13	February 21
First 32°F on or before	November 1	November 17	December 4

Column order matches the NCEI file: for the last freeze, 10% is the later date and 90% is the earlier date. How to read the probabilities.

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Planting calendar

Frost dates for Alabama are above. Planting windows appear for states with a cited extension guide. The fall and seed tools use the numbers you enter and the station dates.

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