Port Alberni Weather Records

Port Alberni, British Columbia weather averages and records from 1917–2024 based on data made available by the NOAA.
All-Time Recorded High
The highest temperature ever recorded in Port Alberni, British Columbia was 42.7 °C which occurred on June 28, 2021.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Port Alberni, British Columbia was -18.9 °C which occurred on January 31, 1950.
Lowest Temperatures: All-Time By Year
Port Alberni Weather by Month
Averages based on the years 1991–2020
Month Average (°C) Record (°C) Average (cm)
High ☀️ Low 🌙 High ☀️ Low 🌙 Precipitation 💧
January 4.5 -0.1 15.6 -18.9 32.4
February 7.1 -0.3 19.4 -15.6 18.5
March 10.1 0.9 24.2 -13.9 19.3
April 13.9 2.9 30.6 -7.8 11.4
May 18.8 6.2 34.3 -5.6 5.3
June 21.3 9.2 42.7 0.0 4.1
July 25.6 11.2 41.1 2.2 2.2
August 25.9 11.1 39.8 1.1 4.2
September 21.8 8.4 37.1 -3.9 7.5
October 14.4 5.2 29.3 -8.5 18.5
November 7.8 2.0 20.6 -16.8 31.5
December 4.2 0.0 16.7 -15.6 29.9
Entire year 14.7 4.8 42.7 -18.9 178.9
More Port Alberni Weather Records
1917–2024
Highest daily low 18.9 °C July 25, 1934
Lowest daily high -11.1 °C January 13, 1950
Greatest daily range
(Difference of high and low)
30.3 °C August 8, 1978
Greatest difference in daily high
over two conscutive days
16.6 °C May 5–6, 1966
Most daily precipitation 14.0 cm November 30, 1958
Most monthly precipitation 81.7 cm November 2009
Most yearly precipitation 268.5 cm 1968
Most yearly days with precipitation 238 2007
Earliest freeze September 12 1970
Earliest day ≥ 20 °C March 10 1965
Earliest day ≥ 25 °C April 6 1934
Earliest day ≥ 30 °C April 20 2016
Earliest day ≥ 35 °C June 9 1969
Latest freeze May 26 1944
Latest day ≥ 20 °C November 19 1936
Latest day ≥ 25 °C October 16 2022
Latest day ≥ 30 °C September 29 1935
Latest day ≥ 35 °C September 14 1937
Most days in a year < 0 °C 120 2009
Most days in a year ≥ 20 °C 146 1934
Most days in a year ≥ 25 °C 88 1951
Most days in a year ≥ 30 °C 34 1958
Most days in a year ≥ 35 °C 8 2022
Most days in a year ≥ 40 °C 2 2021
Port Alberni Weather Streaks
Most consecutive days...
With precipitation 39 days Oct 13 – Nov 20, 2016
Without precipitation 50 days Jul 5 – Aug 23, 1956
Freezing temperatures
High temperature ≤ 0 °C
17 days Jan 16 – Feb 1, 1969
High temperature ≥ 20 °C 81 days Jun 16 – Sep 4, 1938
High temperature ≥ 25 °C 36 days Jul 18 – Aug 22, 1942
High temperature ≥ 30 °C 13 days Jul 27 – Aug 8, 1927
High temperature ≥ 35 °C 5 days Jul 26–30, 2009
Plant Hardiness Zone
8A
Port Alberni is in plant hardiness zone 8A
based on average yearly minimum temperature from 1991–2020
Port Alberni Weather by Year
More Port Alberni Weather
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Weather Station Details
Years Station Coordinates
1996–2024 Port Alberni (AUT) location
1970–1995 Port Alberni A location
1960–1969 Port Alberni Redford location
1917–1959 Port Alberni location