Frost dates / Tennessee / Gallatin

Frost dates in Gallatin, TN

The station on this page is LEBANON 7 N, TN US (USC00405118), 12.7 miles from the city point. Population in the Census 2024 estimate is 52,489.

Zone 7bUSDA average annual extreme minimum 5°F to 10°F, from ZIP 37066 (1.4 miles from the city point used on this page).

Median last 32°F is April 10. Median first 32°F is October 30. The 50% growing-season length is 202 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%	March 22	Earlier date. A last 32°F on or after this day is common.
50%	April 10	Median.
10%	April 29	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%	October 18	Earlier date. A first 32°F on or before this day is uncommon.
50%	October 30	Median.
90%	November 12	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%	223
50%	202
90%	180

28°F threshold

	10%	50%	90%
Last, on or after	April 13	March 29	March 8
First, on or before	October 27	November 9	November 27
Season at least	253 days	227 days	206 days

36°F threshold

	10%	50%	90%
Last, on or after	May 8	April 22	April 5
First, on or before	October 9	October 22	November 1
Season at least	202 days	183 days	162 days

Station LEBANON 7 N, TN US (USC00405118). Completeness flag R, 16 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 155.4 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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Gallatin, TN

Zone 7bAverage annual extreme minimum 5°F to 10°F

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

Tennessee. Nearest qualified station: LEBANON 7 N, TN US (USC00405118), 12.7 miles. Median last 32°F April 10. Median first 32°F October 30. The 50% growing-season length is 202 days.

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32°F probabilities at this station

	10%	50%	90%
Last 32°F on or after	April 29	April 10	March 22
First 32°F on or before	October 18	October 30	November 12

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 Tennessee 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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