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When does it first snow in San Antonio, TX?

At San Antonio, the typical date of the first measurable snowfall (0.1 inch or more in a day) is Jan 29. 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 31, and in 1 in 10 not until Feb 16 or later. The earliest was Dec 7 (2017-18) and the latest Feb 23 (2009-10). A first snowfall of at least 1 inch in a single day typically arrives around Jan 11, and 8% of seasons had one. The first freeze of fall (a low of 32°F or colder) typically comes around Dec 1, and the last freeze of spring around Feb 26.

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.

Jan 29Median first measurable snow (0.1"+)

Jan 11Median first 1"+ snowfall

0.4"Average snowfall per season

0%Chance of white Christmas (1"+ on ground Dec 25)

Dec 1Median first fall freeze (≤32°F)

Feb 26Median last spring freeze (≤32°F)

278Median freeze-free days between

First snowfall dates at San Antonio

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)	Jan 29	Dec 31 – Feb 16	Dec 7 (2017-18)	Feb 23 (2009-10)	32%
1" of snow or more	Jan 11	Dec 14 – Feb 7	Dec 7 (2017-18)	Feb 14 (2020-21)	8%
3" of snow or more	none recorded				0%

Based on 25 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%	0%	4%
1"+	0%	0%	4%

In spring, the last measurable snowfall of the season typically falls around Feb 10 (median).

White Christmas odds in San Antonio

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, San Antonio had that in 0% of years, at least 3 inches in 0%, and at least 6 inches in 0%. The average depth on Dec 25 was 0.0 inches and the deepest was 0 inches. New snow was falling (0.1" or more) on Christmas Day itself in 0% of years. Based on 26 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 Feb 16 (3%). Red line: Dec 25.

First and last freeze dates in San Antonio

Threshold	Event	Median date	Typical range (10th–90th pct)	Earliest / latest	Years with one
32°F or colder (freeze)	First in fall	Dec 1	Nov 16 – Dec 14	Nov 1 (2019) / Dec 22 (2022)	93%
32°F or colder (freeze)	Last in spring	Feb 26	Feb 7 – Mar 16	–	100%
28°F or colder (hard freeze)	First in fall	Dec 12	Dec 2 – Dec 22	Nov 14 (2018) / Dec 24 (2007)	60%
28°F or colder (hard freeze)	Last in spring	Jan 31	Jan 11 – Mar 6	–	67%

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 278 days.

Nearby weather stations

Source station: San Antonio Intl Ap (USW00012921), elevation 799 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 Texas (on our sister site PlugVsPump, from EIA prices).