Caltowie Threshold Days by Year (ASN00021013)

3 fixed thresholds counted per year at Caltowie (ASN00021013): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Caltowie Thresholds

Caltowie: days with 10 mm (0.39 in) or more of precipitation in 117 years, most in 1916 with 22.
Caltowie: days with 25 mm (0.98 in) or more of precipitation in 83 years, most in 2016 with 7.
Caltowie: days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1973 with 3.
3 fixed thresholds have at least one qualifying day at Caltowie.

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

117 years with a qualifying day

Days per year at Caltowie with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 22 in 1916.

Days with 10 mm (0.39 in) or more of precipitation per year at Caltowie
Year	Days	Decade average
1884	12	10.7
1886	15	10.7
1888	5	10.7
1893	11	7.5
1894	7	7.5
1895	7	7.5
1897	7	7.5
1898	8	7.5
1899	5	7.5
1900	6	9.1
1901	6	9.1
1902	10	9.1
1904	6	9.1
1906	7	9.1
1907	10	9.1
1908	19	9.1
1909	9	9.1
1910	16	12.1
1911	15	12.1
1912	14	12.1
1913	9	12.1
1914	2	12.1
1915	10	12.1
1916	22	12.1
1917	13	12.1
1918	8	12.1
1920	13	9.6
1921	13	9.6
1923	13	9.6
1924	12	9.6
1925	8	9.6
1926	8	9.6
1927	4	9.6
1928	10	9.6
1929	5	9.6
1930	5	9.2
1931	10	9.2
1932	11	9.2
1933	7	9.2
1934	14	9.2
1935	3	9.2
1936	8	9.2
1937	14	9.2
1938	9	9.2
1939	11	9.2
1940	3	9.9
1941	9	9.9
1942	14	9.9
1943	7	9.9
1944	9	9.9
1945	7	9.9
1946	11	9.9
1947	16	9.9
1948	7	9.9
1949	16	9.9
1950	10	11.7
1951	13	11.7
1952	17	11.7
1953	12	11.7
1954	10	11.7
1955	15	11.7
1956	18	11.7
1957	7	11.7
1958	11	11.7
1959	4	11.7
1960	17	8.3
1961	8	8.3
1962	5	8.3
1963	8	8.3
1964	6	8.3
1965	9	8.3
1966	10	8.3
1967	4	8.3
1969	8	8.3
1970	8	11.3
1971	15	11.3
1972	12	11.3
1973	16	11.3
1977	6	11.3
1978	11	11.3
1979	11	11.3
1982	4	12.3
1985	19	12.3
1988	11	12.3
1989	15	12.3
1990	15	13.5
1991	15	13.5
1992	20	13.5
1993	16	13.5
1994	8	13.5
1995	13	13.5
1996	9	13.5
1997	12	13.5
1998	13	13.5
1999	14	13.5
2000	14	11.5
2001	14	11.5
2002	8	11.5
2003	8	11.5
2004	12	11.5
2005	15	11.5
2006	11	11.5
2007	11	11.5
2008	6	11.5
2009	16	11.5
2010	16	12.2
2011	16	12.2
2012	9	12.2
2013	16	12.2
2014	11	12.2
2015	12	12.2
2016	19	12.2
2017	12	12.2
2018	8	12.2
2019	3	12.2
2020	15	14
2021	13	14

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

First to last qualifying date each year at Caltowie
Year	First date	Last date
1884	1884-03-28	1884-09-27
1886	1886-04-23	1886-12-07
1888	1888-04-10	1888-09-22
1893	1893-04-08	1893-11-08
1894	1894-04-19	1894-12-27
1895	1895-01-04	1895-12-17
1897	1897-01-09	1897-09-29
1898	1898-02-10	1898-10-29
1899	1899-02-28	1899-11-17
1900	1900-05-18	1900-10-23
1901	1901-04-03	1901-10-12
1902	1902-06-21	1902-12-19
1904	1904-02-19	1904-10-19
1906	1906-03-01	1906-12-11
1907	1907-04-05	1907-12-27
1908	1908-01-31	1908-11-21
1909	1909-04-20	1909-11-19
1910	1910-01-07	1910-12-01
1911	1911-02-07	1911-12-12
1912	1912-03-09	1912-12-06
1913	1913-08-03	1913-12-23
1914	1914-10-16	1914-11-17
1915	1915-01-20	1915-12-29
1916	1916-01-06	1916-12-02
1917	1917-02-14	1917-12-12
1918	1918-01-29	1918-10-04
1920	1920-03-07	1920-12-01
1921	1921-02-26	1921-09-19
1923	1923-04-18	1923-12-18
1924	1924-01-03	1924-12-14
1925	1925-01-13	1925-09-18
1926	1926-04-25	1926-09-26
1927	1927-03-22	1927-12-02
1928	1928-01-19	1928-10-03
1929	1929-05-22	1929-12-27
1930	1930-05-11	1930-10-24
1931	1931-03-13	1931-12-04
1932	1932-02-05	1932-09-15
1933	1933-07-28	1933-12-27
1934	1934-01-07	1934-12-09
1935	1935-01-05	1935-10-19
1936	1936-01-04	1936-12-03
1937	1937-01-09	1937-12-11
1938	1938-02-19	1938-10-24
1939	1939-02-25	1939-11-05
1940	1940-01-05	1940-04-01
1941	1941-01-24	1941-11-19
1942	1942-01-20	1942-12-25
1943	1943-02-17	1943-08-26
1944	1944-02-06	1944-12-21
1945	1945-05-13	1945-12-27
1946	1946-01-17	1946-12-25
1947	1947-02-05	1947-12-03
1948	1948-04-11	1948-12-25
1949	1949-05-06	1949-11-22
1950	1950-02-02	1950-08-20
1951	1951-04-12	1951-10-25
1952	1952-01-05	1952-11-28
1953	1953-02-05	1953-11-07
1954	1954-01-28	1954-12-12
1955	1955-02-10	1955-11-24
1956	1956-01-20	1956-10-17
1957	1957-06-19	1957-12-29
1958	1958-03-07	1958-11-29
1959	1959-07-22	1959-12-08
1960	1960-05-06	1960-11-12
1961	1961-04-23	1961-11-22
1962	1962-03-27	1962-10-19
1963	1963-05-15	1963-11-07
1964	1964-04-08	1964-12-22
1965	1965-05-08	1965-12-23
1966	1966-02-15	1966-12-02
1967	1967-01-24	1967-09-05
1969	1969-01-14	1969-09-13
1970	1970-04-09	1970-12-11
1971	1971-02-22	1971-12-10
1972	1972-01-11	1972-12-25
1973	1973-01-27	1973-11-05
1977	1977-05-23	1977-11-29
1978	1978-04-10	1978-10-13
1979	1979-01-17	1979-11-14
1982	1982-03-08	1982-09-29
1985	1985-03-22	1985-12-10
1988	1988-02-08	1988-12-18
1989	1989-03-10	1989-12-02
1990	1990-04-20	1990-12-10
1991	1991-01-23	1991-11-13
1992	1992-03-01	1992-12-21
1993	1993-01-24	1993-12-22
1994	1994-02-27	1994-11-01
1995	1995-01-14	1995-11-05
1996	1996-02-28	1996-09-30
1997	1997-01-15	1997-12-18
1998	1998-01-10	1998-11-11
1999	1999-03-21	1999-12-03
2000	2000-02-20	2000-12-22
2001	2001-01-25	2001-11-06
2002	2002-03-26	2002-12-31
2003	2003-01-21	2003-12-20
2004	2004-01-07	2004-12-11
2005	2005-06-10	2005-12-02
2006	2006-02-24	2006-12-22
2007	2007-01-19	2007-12-22
2008	2008-05-17	2008-12-13
2009	2009-03-04	2009-11-29
2010	2010-01-13	2010-12-08
2011	2011-02-04	2011-12-18
2012	2012-01-08	2012-12-01
2013	2013-02-22	2013-12-05
2014	2014-02-15	2014-09-24
2015	2015-01-10	2015-11-05
2016	2016-01-22	2016-12-28
2017	2017-01-20	2017-12-02
2018	2018-05-04	2018-11-28
2019	2019-05-10	2019-08-19
2020	2020-01-06	2020-12-01
2021	2021-01-26	2021-11-24

Every Fixed Threshold

Fixed thresholds at Caltowie
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	117	22	1916	13
25 mm (0.98 in): Days with 25 mm or more rain	83	7	2016	1
50 mm (1.97 in): Days with 50 mm or more rain	15	3	1973	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1884.

Download the Data

Data for Caltowie 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

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

Caltowie Threshold Days by Year (ASN00021013)

Key Facts for Caltowie Thresholds

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

Every Fixed Threshold

Download the Data

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