Port Alberni Threshold Days by Year

15 fixed thresholds counted per year at Port Alberni (CA001036205): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Port Alberni Thresholds

Port Alberni: nights with a minimum temperature at or below 0 C (32 F) in 41 years, most in 1948 with 137.
Port Alberni: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1950 with 77.
Port Alberni: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1950 with 36.
Port Alberni: days with a maximum temperature at or above 30 C (86 F) in 39 years, most in 1958 with 34.
15 fixed thresholds have at least one qualifying day at Port Alberni.

Days at or above 30 C (86 F)

39 years with a qualifying day

Days per year at Port Alberni with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 34 in 1958.

Days at or above 30 C (86 F) per year at Port Alberni
Year	Days	Decade average
1918	9	11
1919	13	11
1920	22	17.5
1921	2	17.5
1922	17	17.5
1923	21	17.5
1924	16	17.5
1925	20	17.5
1926	18	17.5
1927	27	17.5
1928	15	17.5
1929	17	17.5
1930	15	18.7
1931	28	18.7
1932	13	18.7
1933	19	18.7
1934	22	18.7
1935	22	18.7
1936	12	18.7
1937	13	18.7
1938	22	18.7
1939	21	18.7
1940	9	18.1
1941	21	18.1
1942	27	18.1
1943	19	18.1
1944	20	18.1
1945	24	18.1
1946	16	18.1
1947	10	18.1
1948	13	18.1
1949	22	18.1
1950	18	17.7
1951	30	17.7
1952	15	17.7
1955	6	17.7
1956	12	17.7
1958	34	17.7
1959	9	17.7

For each year, a bar from the first to the last day at Port Alberni meeting 30 C (86 F).

First to last qualifying date each year at Port Alberni
Year	First date	Last date
1918	1918-06-06	1918-09-16
1919	1919-07-14	1919-09-24
1920	1920-06-28	1920-08-22
1921	1921-08-12	1921-08-13
1922	1922-05-31	1922-08-26
1923	1923-06-04	1923-09-07
1924	1924-05-11	1924-09-12
1925	1925-05-16	1925-09-07
1926	1926-05-12	1926-09-05
1927	1927-06-06	1927-08-22
1928	1928-05-20	1928-09-02
1929	1929-07-07	1929-09-16
1930	1930-07-09	1930-09-01
1931	1931-05-12	1931-08-28
1932	1932-05-28	1932-08-14
1933	1933-06-12	1933-08-25
1934	1934-04-20	1934-09-03
1935	1935-06-05	1935-09-29
1936	1936-05-25	1936-08-28
1937	1937-05-30	1937-09-14
1938	1938-05-20	1938-09-14
1939	1939-05-13	1939-08-23
1940	1940-05-29	1940-09-09
1941	1941-06-11	1941-08-19
1942	1942-06-29	1942-08-22
1943	1943-06-27	1943-09-09
1944	1944-06-08	1944-09-10
1945	1945-05-02	1945-08-21
1946	1946-07-19	1946-08-23
1947	1947-05-24	1947-09-24
1948	1948-06-05	1948-09-08
1949	1949-05-11	1949-09-08
1950	1950-06-11	1950-09-11
1951	1951-06-21	1951-09-14
1952	1952-07-08	1952-08-12
1955	1955-06-09	1955-09-05
1956	1956-05-18	1956-08-22
1958	1958-05-22	1958-09-07
1959	1959-07-16	1959-07-31

Every Fixed Threshold

Fixed thresholds at Port Alberni
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	39	34	1958	9
35 C (95 F): Days	25	7	1933	2
40 C (104 F): Days	1	2	1941	2
90 F (32.2 C): Days	38	19	1958	5
100 F (37.8 C): Days	5	4	1941	1
0 C (32 F): Ice days (max	38	30	1949	6
0 C (32 F): Frost days (min	41	137	1948	69
-10 C (14 F): Days with min	28	14	1950	1
10 mm (0.39 in): Days with 10 mm or more rain	40	77	1950	76
25 mm (0.98 in): Days with 25 mm or more rain	40	36	1950	34
50 mm (1.97 in): Days with 50 mm or more rain	32	14	1950	4
100 mm (3.94 in): Days with 100 mm or more rain	8	2	1947	1
10 cm (3.9 in): Days with 10 cm or more snowfall	34	12	1933	2
25 cm (9.8 in): Days with 25 cm or more snowfall	14	3	1933	2
50 cm (19.7 in): Days with 50 cm or more snowfall	4	1	1923	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1918.

Download the Data

Data for Port Alberni threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).

Port Alberni Threshold Days by Year

Key Facts for Port Alberni Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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