Katella Threshold Days by Year

4 fixed thresholds counted per year at Katella (ASN00062018): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Katella Thresholds

Katella: days with 10 mm (0.39 in) or more of precipitation in 60 years, most in 1916 with 34.
Katella: days with 25 mm (0.98 in) or more of precipitation in 60 years, most in 1889 with 11.
Katella: days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 1920 with 4.
Katella: days with 100 mm (3.94 in) or more of precipitation in 3 years, most in 1898 with 1.
4 fixed thresholds have at least one qualifying day at Katella.

Days with 10 mm (0.39 in) or more of precipitation

60 years with a qualifying day

Days per year at Katella with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1916.

Days with 10 mm (0.39 in) or more of precipitation per year at Katella
Year	Days	Decade average
1889	22	22
1890	25	21.8
1891	23	21.8
1892	28	21.8
1893	24	21.8
1894	21	21.8
1895	24	21.8
1896	17	21.8
1897	17	21.8
1898	21	21.8
1899	18	21.8
1900	21	18.5
1901	18	18.5
1902	14	18.5
1903	17	18.5
1904	18	18.5
1905	19	18.5
1906	26	18.5
1907	17	18.5
1908	14	18.5
1909	21	18.5
1910	22	19.5
1911	21	19.5
1912	17	19.5
1913	16	19.5
1914	18	19.5
1915	18	19.5
1916	34	19.5
1917	23	19.5
1918	14	19.5
1919	12	19.5
1920	24	18.9
1921	27	18.9
1922	14	18.9
1923	17	18.9
1924	16	18.9
1925	18	18.9
1926	26	18.9
1927	15	18.9
1928	19	18.9
1929	13	18.9
1930	26	19.9
1931	19	19.9
1932	21	19.9
1933	19	19.9
1934	23	19.9
1935	16	19.9
1936	23	19.9
1937	17	19.9
1938	14	19.9
1939	21	19.9
1940	17	18.4
1941	27	18.4
1942	24	18.4
1943	20	18.4
1944	8	18.4
1945	20	18.4
1946	11	18.4
1947	20	18.4
1948	19	18.4

For each year, a bar from the first to the last day at Katella meeting 10 mm (0.39 in).

First to last qualifying date each year at Katella
Year	First date	Last date
1889	1889-02-05	1889-12-19
1890	1890-02-09	1890-12-22
1891	1891-01-06	1891-11-10
1892	1892-01-11	1892-12-31
1893	1893-02-18	1893-12-30
1894	1894-01-06	1894-12-29
1895	1895-01-05	1895-12-28
1896	1896-01-21	1896-12-03
1897	1897-01-10	1897-12-21
1898	1898-01-13	1898-12-24
1899	1899-01-19	1899-12-08
1900	1900-01-10	1900-11-18
1901	1901-01-12	1901-11-14
1902	1902-03-28	1902-12-18
1903	1903-01-22	1903-12-22
1904	1904-01-03	1904-12-13
1905	1905-02-16	1905-11-20
1906	1906-01-01	1906-12-24
1907	1907-01-27	1907-12-17
1908	1908-02-01	1908-12-22
1909	1909-01-18	1909-12-29
1910	1910-01-06	1910-12-18
1911	1911-01-12	1911-12-03
1912	1912-01-06	1912-11-20
1913	1913-01-03	1913-10-27
1914	1914-01-02	1914-12-21
1915	1915-01-01	1915-12-15
1916	1916-01-01	1916-12-26
1917	1917-01-23	1917-12-13
1918	1918-01-11	1918-09-16
1919	1919-02-19	1919-12-31
1920	1920-01-02	1920-12-10
1921	1921-01-04	1921-12-27
1922	1922-01-08	1922-12-08
1923	1923-01-14	1923-12-27
1924	1924-02-15	1924-11-22
1925	1925-01-16	1925-11-19
1926	1926-01-05	1926-12-29
1927	1927-01-06	1927-12-09
1928	1928-01-19	1928-10-19
1929	1929-01-08	1929-12-27
1930	1930-01-24	1930-12-18
1931	1931-01-25	1931-12-05
1932	1932-02-07	1932-12-24
1933	1933-01-24	1933-12-06
1934	1934-01-07	1934-12-10
1935	1935-01-05	1935-12-01
1936	1936-01-05	1936-12-21
1937	1937-01-01	1937-12-30
1938	1938-01-27	1938-12-31
1939	1939-01-26	1939-12-27
1940	1940-03-20	1940-12-21
1941	1941-01-01	1941-12-20
1942	1942-02-02	1942-12-27
1943	1943-01-04	1943-12-19
1944	1944-01-26	1944-09-15
1945	1945-01-14	1945-11-11
1946	1946-01-19	1946-12-28
1947	1947-02-11	1947-12-25
1948	1948-01-02	1948-12-31

Every Fixed Threshold

Fixed thresholds at Katella
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	60	34	1916	19
25 mm (0.98 in): Days with 25 mm or more rain	60	11	1889	8
50 mm (1.97 in): Days with 50 mm or more rain	30	4	1920	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1898	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1889.

Download the Data

Data for Katella 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Katella Threshold Days by Year

Key Facts for Katella Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

Related