Jenner Threshold Days by Year (CA003023560)
17 fixed thresholds counted per year at Jenner (CA003023560): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Jenner Thresholds
- Jenner: nights with a minimum temperature at or below 0 C (32 F) in 39 years, most in 1946 with 248.
- Jenner: nights with a minimum temperature at or below -10 C (14 F) in 39 years, most in 1948 with 130.
- Jenner: nights with a minimum temperature at or below -20 C (-4 F) in 39 years, most in 1955 with 75.
- Jenner: nights with a minimum temperature at or below -30 C (-22 F) in 39 years, most in 1916 with 35.
- 17 fixed thresholds have at least one qualifying day at Jenner.
Days at or above 30 C (86 F)
38 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1916 | 38 | 46.3 |
| 1917 | 68 | 46.3 |
| 1919 | 33 | 46.3 |
| 1924 | 16 | 20.2 |
| 1925 | 27 | 20.2 |
| 1926 | 26 | 20.2 |
| 1927 | 3 | 20.2 |
| 1928 | 18 | 20.2 |
| 1929 | 31 | 20.2 |
| 1930 | 31 | 30.1 |
| 1932 | 23 | 30.1 |
| 1933 | 29 | 30.1 |
| 1934 | 34 | 30.1 |
| 1935 | 18 | 30.1 |
| 1936 | 47 | 30.1 |
| 1937 | 34 | 30.1 |
| 1938 | 26 | 30.1 |
| 1939 | 29 | 30.1 |
| 1940 | 25 | 23.2 |
| 1941 | 28 | 23.2 |
| 1942 | 14 | 23.2 |
| 1943 | 23 | 23.2 |
| 1944 | 28 | 23.2 |
| 1945 | 26 | 23.2 |
| 1946 | 20 | 23.2 |
| 1947 | 22 | 23.2 |
| 1948 | 25 | 23.2 |
| 1949 | 21 | 23.2 |
| 1950 | 28 | 20.3 |
| 1951 | 16 | 20.3 |
| 1952 | 18 | 20.3 |
| 1953 | 17 | 20.3 |
| 1954 | 13 | 20.3 |
| 1955 | 27 | 20.3 |
| 1956 | 14 | 20.3 |
| 1957 | 18 | 20.3 |
| 1958 | 31 | 20.3 |
| 1959 | 21 | 20.3 |
| Year | First date | Last date |
|---|---|---|
| 1916 | 1916-05-06 | 1916-10-13 |
| 1917 | 1917-05-10 | 1917-09-22 |
| 1919 | 1919-05-19 | 1919-08-31 |
| 1924 | 1924-05-16 | 1924-09-06 |
| 1925 | 1925-05-19 | 1925-09-04 |
| 1926 | 1926-06-04 | 1926-08-29 |
| 1927 | 1927-07-24 | 1927-08-11 |
| 1928 | 1928-05-21 | 1928-09-05 |
| 1929 | 1929-06-27 | 1929-08-31 |
| 1930 | 1930-06-07 | 1930-09-05 |
| 1932 | 1932-06-13 | 1932-09-07 |
| 1933 | 1933-06-13 | 1933-09-14 |
| 1934 | 1934-05-15 | 1934-10-11 |
| 1935 | 1935-06-22 | 1935-09-14 |
| 1936 | 1936-05-14 | 1936-08-23 |
| 1937 | 1937-06-02 | 1937-09-18 |
| 1938 | 1938-06-20 | 1938-09-24 |
| 1939 | 1939-04-28 | 1939-08-27 |
| 1940 | 1940-05-10 | 1940-09-13 |
| 1941 | 1941-05-23 | 1941-08-22 |
| 1942 | 1942-05-22 | 1942-10-10 |
| 1943 | 1943-06-29 | 1943-10-03 |
| 1944 | 1944-05-15 | 1944-09-13 |
| 1945 | 1945-06-21 | 1945-09-03 |
| 1946 | 1946-05-26 | 1946-08-23 |
| 1947 | 1947-07-02 | 1947-09-02 |
| 1948 | 1948-06-07 | 1948-09-10 |
| 1949 | 1949-05-11 | 1949-09-01 |
| 1950 | 1950-06-11 | 1950-09-24 |
| 1951 | 1951-05-23 | 1951-08-04 |
| 1952 | 1952-06-06 | 1952-09-26 |
| 1953 | 1953-05-07 | 1953-09-12 |
| 1954 | 1954-07-04 | 1954-07-31 |
| 1955 | 1955-07-13 | 1955-09-02 |
| 1956 | 1956-06-01 | 1956-08-23 |
| 1957 | 1957-06-04 | 1957-09-27 |
| 1958 | 1958-05-28 | 1958-09-12 |
| 1959 | 1959-06-19 | 1959-09-13 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 38 | 68 | 1917 | 21 |
| 35 C (95 F): Days | 37 | 23 | 1917 | 1 |
| 40 C (104 F): Days | 4 | 5 | 1917 | 2 |
| 90 F (32.2 C): Days | 38 | 43 | 1917 | 9 |
| 100 F (37.8 C): Days | 18 | 11 | 1917 | 2 |
| 0 C (32 F): Ice days (max | 38 | 116 | 1951 | 64 |
| 0 C (32 F): Frost days (min | 39 | 248 | 1946 | 184 |
| -10 C (14 F): Days with min | 39 | 130 | 1948 | 66 |
| -20 C (-4 F): Days with min | 39 | 75 | 1955 | 41 |
| -30 C (-22 F): Days with min | 39 | 35 | 1916 | 10 |
| -40 C (-40 F): Days with min | 22 | 11 | 1950 | 1 |
| 20 C (68 F): Tropical nights (min | 9 | 2 | 1924 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 37 | 23 | 1916 | 10 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 24 | 4 | 1956 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 6 | 1 | 1916 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 29 | 5 | 1926 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 2 | 1 | 1916 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1916.
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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-17).