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When does it first snow in Juneau, AK?

At Juneau, the typical date of the first measurable snowfall (0.1 inch or more in a day) is Nov 4. 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 Oct 18, and in 1 in 10 not until Nov 22 or later. The earliest was Oct 2 (2000-01) and the latest Dec 14 (2002-03). A first snowfall of at least 1 inch in a single day typically arrives around Nov 10, and 100% of seasons had one. The first freeze of fall (a low of 32°F or colder) typically comes around Sep 30, and the last freeze of spring around May 7.

This season so far (2026-27, data through Oct 16, 2026): no measurable snow recorded yet; first freeze (32°F or colder) Sep 25 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.

Nov 4Median first measurable snow (0.1"+)

Nov 10Median first 1"+ snowfall

82.9"Average snowfall per season

23%Chance of white Christmas (1"+ on ground Dec 25)

Sep 30Median first fall freeze (≤32°F)

May 7Median last spring freeze (≤32°F)

142Median freeze-free days between

First snowfall dates at Juneau

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)	Nov 4	Oct 18 – Nov 22	Oct 2 (2000-01)	Dec 14 (2002-03)	100%
1" of snow or more	Nov 10	Oct 18 – Nov 30	Oct 2 (2000-01)	Dec 22 (2002-03)	100%
3" of snow or more	Nov 23	Nov 5 – Dec 25	Oct 16 (2016-17)	Feb 13 (2000-01)	100%

Based on 30 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)	37%	97%	100%
1"+	23%	90%	100%

In spring, the last measurable snowfall of the season typically falls around Apr 1 (median).

White Christmas odds in Juneau

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, Juneau had that in 23% of years, at least 3 inches in 17%, and at least 6 inches in 3%. The average depth on Dec 25 was 1.1 inches and the deepest was 11 inches. New snow was falling (0.1" or more) on Christmas Day itself in 23% of years. Based on 30 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 30 (59%). Red line: Dec 25.

First and last freeze dates in Juneau

Threshold	Event	Median date	Typical range (10th–90th pct)	Earliest / latest	Years with one
32°F or colder (freeze)	First in fall	Sep 30	Sep 16 – Oct 18	Sep 9 (2004) / Oct 25 (2001)	100%
32°F or colder (freeze)	Last in spring	May 7	Apr 23 – May 19	–	100%
28°F or colder (hard freeze)	First in fall	Oct 17	Oct 3 – Nov 2	Sep 29 (2009) / Nov 26 (1999)	100%
28°F or colder (hard freeze)	Last in spring	Apr 19	Apr 10 – Apr 30	–	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 142 days.

Nearby weather stations

Source station: Juneau Ap (USW00025309), elevation 19 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 Alaska (on our sister site PlugVsPump, from EIA prices).