Nanaimo Threshold Days by Year
15 fixed thresholds counted per year at Nanaimo (CA001025340): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Nanaimo Thresholds
- Nanaimo: nights with a minimum temperature at or below 0 C (32 F) in 63 years, most in 1967 with 113.
- Nanaimo: days with 10 mm (0.39 in) or more of precipitation in 62 years, most in 1961 with 50.
- Nanaimo: days with 25 mm (0.98 in) or more of precipitation in 62 years, most in 1951 with 12.
- Nanaimo: days with a maximum temperature at or above 30 C (86 F) in 55 years, most in 1958 with 18.
- 15 fixed thresholds have at least one qualifying day at Nanaimo.
Days at or above 30 C (86 F)
55 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1892 | 4 | 4 |
| 1902 | 5 | 4.7 |
| 1903 | 2 | 4.7 |
| 1904 | 6 | 4.7 |
| 1905 | 2 | 4.7 |
| 1906 | 8 | 4.7 |
| 1907 | 4 | 4.7 |
| 1908 | 6 | 4.7 |
| 1910 | 3 | 2.4 |
| 1911 | 5 | 2.4 |
| 1912 | 1 | 2.4 |
| 1915 | 4 | 2.4 |
| 1916 | 2 | 2.4 |
| 1917 | 1 | 2.4 |
| 1918 | 1 | 2.4 |
| 1920 | 7 | 4.2 |
| 1921 | 1 | 4.2 |
| 1922 | 3 | 4.2 |
| 1923 | 3 | 4.2 |
| 1924 | 1 | 4.2 |
| 1925 | 5 | 4.2 |
| 1926 | 3 | 4.2 |
| 1927 | 9 | 4.2 |
| 1928 | 6 | 4.2 |
| 1930 | 1 | 4.6 |
| 1931 | 5 | 4.6 |
| 1932 | 1 | 4.6 |
| 1933 | 5 | 4.6 |
| 1934 | 3 | 4.6 |
| 1935 | 6 | 4.6 |
| 1938 | 8 | 4.6 |
| 1939 | 8 | 4.6 |
| 1940 | 4 | 5 |
| 1941 | 6 | 5 |
| 1942 | 14 | 5 |
| 1943 | 2 | 5 |
| 1944 | 7 | 5 |
| 1945 | 5 | 5 |
| 1946 | 3 | 5 |
| 1947 | 1 | 5 |
| 1948 | 3 | 5 |
| 1950 | 2 | 6 |
| 1951 | 5 | 6 |
| 1952 | 10 | 6 |
| 1953 | 1 | 6 |
| 1955 | 2 | 6 |
| 1956 | 3 | 6 |
| 1958 | 18 | 6 |
| 1959 | 7 | 6 |
| 1960 | 7 | 6.3 |
| 1961 | 12 | 6.3 |
| 1962 | 4 | 6.3 |
| 1965 | 5 | 6.3 |
| 1966 | 1 | 6.3 |
| 1967 | 9 | 6.3 |
| Year | First date | Last date |
|---|---|---|
| 1892 | 1892-06-24 | 1892-08-21 |
| 1902 | 1902-08-05 | 1902-08-10 |
| 1903 | 1903-06-08 | 1903-07-20 |
| 1904 | 1904-06-29 | 1904-08-04 |
| 1905 | 1905-07-22 | 1905-07-23 |
| 1906 | 1906-07-02 | 1906-08-26 |
| 1907 | 1907-07-29 | 1907-08-01 |
| 1908 | 1908-07-12 | 1908-08-18 |
| 1910 | 1910-07-10 | 1910-07-20 |
| 1911 | 1911-07-14 | 1911-07-24 |
| 1912 | 1912-07-17 | 1912-07-17 |
| 1915 | 1915-07-01 | 1915-08-21 |
| 1916 | 1916-08-23 | 1916-08-24 |
| 1917 | 1917-08-16 | 1917-08-16 |
| 1918 | 1918-07-17 | 1918-07-17 |
| 1920 | 1920-07-15 | 1920-08-12 |
| 1921 | 1921-08-13 | 1921-08-13 |
| 1922 | 1922-07-02 | 1922-08-26 |
| 1923 | 1923-06-06 | 1923-07-27 |
| 1924 | 1924-07-24 | 1924-07-24 |
| 1925 | 1925-06-24 | 1925-08-09 |
| 1926 | 1926-06-24 | 1926-07-10 |
| 1927 | 1927-07-22 | 1927-08-16 |
| 1928 | 1928-07-21 | 1928-07-26 |
| 1930 | 1930-08-12 | 1930-08-12 |
| 1931 | 1931-07-06 | 1931-08-09 |
| 1932 | 1932-06-12 | 1932-06-12 |
| 1933 | 1933-07-15 | 1933-08-24 |
| 1934 | 1934-07-24 | 1934-08-25 |
| 1935 | 1935-07-13 | 1935-08-28 |
| 1938 | 1938-06-21 | 1938-07-25 |
| 1939 | 1939-07-26 | 1939-08-21 |
| 1940 | 1940-08-05 | 1940-08-19 |
| 1941 | 1941-07-13 | 1941-07-18 |
| 1942 | 1942-06-30 | 1942-08-22 |
| 1943 | 1943-07-20 | 1943-09-09 |
| 1944 | 1944-06-09 | 1944-09-09 |
| 1945 | 1945-07-06 | 1945-08-06 |
| 1946 | 1946-07-19 | 1946-08-19 |
| 1947 | 1947-05-26 | 1947-05-26 |
| 1948 | 1948-06-06 | 1948-07-31 |
| 1950 | 1950-06-16 | 1950-08-19 |
| 1951 | 1951-06-28 | 1951-08-20 |
| 1952 | 1952-07-07 | 1952-08-12 |
| 1953 | 1953-07-07 | 1953-07-07 |
| 1955 | 1955-06-09 | 1955-09-05 |
| 1956 | 1956-07-17 | 1956-07-19 |
| 1958 | 1958-05-24 | 1958-08-24 |
| 1959 | 1959-07-16 | 1959-07-31 |
| 1960 | 1960-07-05 | 1960-08-09 |
| 1961 | 1961-06-17 | 1961-08-12 |
| 1962 | 1962-07-23 | 1962-07-27 |
| 1965 | 1965-07-29 | 1965-08-18 |
| 1966 | 1966-08-23 | 1966-08-23 |
| 1967 | 1967-06-18 | 1967-08-28 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 55 | 18 | 1958 | 9 |
| 35 C (95 F): Days | 3 | 3 | 1941 | 2 |
| 40 C (104 F): Days | 1 | 1 | 1941 | 1 |
| 90 F (32.2 C): Days | 32 | 5 | 1941 | 4 |
| 100 F (37.8 C): Days | 1 | 2 | 1941 | 2 |
| 0 C (32 F): Ice days (max | 43 | 24 | 1950 | 2 |
| 0 C (32 F): Frost days (min | 63 | 113 | 1967 | 113 |
| -10 C (14 F): Days with min | 28 | 15 | 1950 | 4 |
| 20 C (68 F): Tropical nights (min | 29 | 7 | 1958 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 62 | 50 | 1961 | 28 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 62 | 12 | 1951 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 19 | 2 | 1954 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 48 | 7 | 1937 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 11 | 2 | 1954 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 3 | 1 | 1911 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1892.
Download the Data
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 . Last revised (2026-10-14).