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When does it first snow in Knoxville, TN?

At Knoxville, the typical date of the first measurable snowfall (0.1 inch or more in a day) is Dec 30. That is the median over the last 30 snow seasons: half of seasons saw it earlier, half later. In about 1 season in 10 it came by Dec 1, and in 1 in 10 not until Jan 30 or later. The earliest was Nov 12 (2019-20) and the latest Feb 12 (1998-99). A first snowfall of at least 1 inch in a single day typically arrives around Jan 15, and 83% of seasons had one. The first freeze of fall (a low of 32°F or colder) typically comes around Nov 2, and the last freeze of spring around Mar 30.

This season so far (2026-27, data through Oct 16, 2026): no measurable snow recorded yet; no 32°F freeze recorded yet at this station. Compare with the typical dates above. This is observed data and can lag by a day or two, and it is not a forecast.

Dec 30Median first measurable snow (0.1"+)

Jan 15Median first 1"+ snowfall

4.7"Average snowfall per season

8%Chance of white Christmas (1"+ on ground Dec 25)

Nov 2Median first fall freeze (≤32°F)

Mar 30Median last spring freeze (≤32°F)

218Median freeze-free days between

First snowfall dates at Knoxville

First day with…	Median date	Typical range (10th–90th pct)	Earliest in 30 seasons	Latest in 30 seasons	Seasons with one
0.1" of snow or more (measurable)	Dec 30	Dec 1 – Jan 30	Nov 12 (2019-20)	Feb 12 (1998-99)	96%
1" of snow or more	Jan 15	Dec 11 – Feb 10	Nov 12 (2019-20)	Feb 24 (1998-99)	83%
3" of snow or more	Jan 28	Jan 10 – Mar 2	Jan 10 (2010-11)	Mar 12 (2021-22)	29%

Based on 24 seasons (July–June, 1995-96 to 2024-25) with at least 85% complete daily snowfall records at the station. Dates are for a single day’s snowfall, so "1 inch" means one calendar day with 1" or more, not total accumulation.

Chance the first snow has already happened by a given date

Snowfall	By Nov 1	By Dec 1	By Jan 1
0.1"+ (measurable)	0%	12%	50%
1"+	0%	4%	25%

In spring, the last measurable snowfall of the season typically falls around Feb 18 (median).

White Christmas odds in Knoxville

NOAA defines a white Christmas as at least 1 inch of snow on the ground on the morning of December 25. Using the last 30 years of daily snow-depth records (1995–2024) at this station, Knoxville had that in 8% of years, at least 3 inches in 0%, and at least 6 inches in 0%. The average depth on Dec 25 was 0.2 inches and the deepest was 2 inches. New snow was falling (0.1" or more) on Christmas Day itself in 8% of years. Based on 25 years with a recorded depth on Dec 25.

Chance of at least 1 inch of snow on the ground, by date

Share of the last 30 years with 1"+ snow depth within 3 days of each date. Snow cover is most likely around Jan 10 (11%). Red line: Dec 25.

First and last freeze dates in Knoxville

Threshold	Event	Median date	Typical range (10th–90th pct)	Earliest / latest	Years with one
32°F or colder (freeze)	First in fall	Nov 2	Oct 18 – Nov 14	Oct 10 (2000) / Nov 24 (2024)	100%
32°F or colder (freeze)	Last in spring	Mar 30	Mar 11 – Apr 16	–	100%
28°F or colder (hard freeze)	First in fall	Nov 15	Nov 4 – Nov 26	Nov 2 (2023) / Dec 5 (2009)	100%
28°F or colder (hard freeze)	Last in spring	Mar 19	Mar 5 – Mar 31	–	100%

Based on the station’s daily minimum temperature, 1995–2024. “Freeze” here means a daily low at or below the threshold, which is not the same as visible frost. Your yard can differ by several degrees and days from an airport weather station, so use these as planning odds, not guarantees.

The median stretch between the last spring freeze and the first fall freeze (the freeze-free season) was about 218 days.

Nearby weather stations

Source station: Knoxville Ap (USW00013891), elevation 971 ft. Data: NOAA NCEI GHCN-Daily. Computed by First Snow Dates; how we calculate this. Historical averages only; for a forecast see weather.gov.

Planning for winter? Heat pump vs gas furnace, propane and oil: heating cost in Tennessee (on our sister site PlugVsPump, from EIA prices).