Juneau Weather Records

Juneau, Alaska weather averages and records from 1890–2023 based on data made available by the NOAA.
All-Time Recorded High
The highest temperature ever recorded in Juneau, Alaska was 90 °F which occurred on July 7, 1975.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Juneau, Alaska was -22 °F which occurred on January 12, 1972.
Lowest Temperatures: All-Time By Year
Juneau Weather by Month
Averages based on the years 1991–2020
Month Average (°F) Record (°F) Average (inches)
High ☀️ Low 🌙 High ☀️ Low 🌙 Precipitation 💧 Snow ❄️
January 33.1 24.1 60 -22 6.0 24.5
February 35.7 24.9 57 -22 4.3 16.7
March 39.2 26.9 61 -15 3.7 12.4
April 48.7 33.1 74 6 3.5 1.2
May 57.6 40.6 80 25 3.5 0.0
June 62.4 47.1 87 31 3.8 0.0
July 64.0 50.4 90 37 5.1 0.0
August 62.9 49.4 87 31 6.4 0.0
September 56.1 44.4 85 23 9.2 0.0
October 47.3 37.4 68 11 8.4 0.9
November 38.3 29.5 60 -5 6.5 13.4
December 34.8 26.2 59 -15 6.5 17.0
Entire year 48.4 36.2 90 -22 67.0 86.2
More Juneau Weather Records
1890–2023
Highest daily low 70 °F June 20, 1914
Lowest daily high -10 °F February 1, 1917
Greatest daily range
(Difference of high and low)
52 °F September 11, 1895
Difference in high temperature
over two conscutive days
31 °F Jun 4–5, 1913
Most daily precipitation 4.9 inches December 1, 2020
Most monthly precipitation 20.2 inches January 1891
Most yearly precipitation 102.6 inches 1948
Earliest snow in season September 26 1908
Latest snow in season May 13 1965
Most daily snow 20.5 inches April 2, 1963
Most monthly snow 86.3 inches February 1965
Most yearly snow 212.1 inches 1994
Most snow in a winter 194.3 inches 1964–1965
Greatest snow accumulation 65.0 inches January 21, 1952
Earliest freeze August 24 1969
Earliest day ≥ 70 °F April 17 2021
Earliest day ≥ 80 °F May 16 1915
Latest freeze June 13 1965
Latest day ≥ 70 °F September 20 1896
Latest day ≥ 80 °F September 11 1895
Most days in a year < 0 °F 25 1969
Most days in a year < 32 °F 169 1972
Most days in a year ≥ 80 °F 13 1915
Most days in a year ≥ 90 °F 1 1975
Juneau Weather Streaks
Most consecutive days...
With precipitation 51 days Sep 1 – Oct 21, 1908
Without precipitation 25 days Nov 2–26, 1896
With snow 17 days Jan 18 – Feb 3, 2006
Freezing temperatures
High temperature ≤ 32 °F
37 days Jan 4 – Feb 9, 1969
High temperature ≥ 80 °F 8 days Jun 18–25, 2004
Juneau Weather by Year
More Juneau Weather
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Weather Station Details
Years Station Coordinates
1960–2023 Juneau International Airport location
1890–1959 Downtown Juneau location