Calliope Post Office Threshold Days by Year

5 fixed thresholds counted per year at Calliope Post Office (ASN00039021): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Calliope Post Office Thresholds

Calliope Post Office: days with 10 mm (0.39 in) or more of precipitation in 83 years, most in 1956 with 56.
Calliope Post Office: days with 25 mm (0.98 in) or more of precipitation in 83 years, most in 1956 with 26.
Calliope Post Office: days with 50 mm (1.97 in) or more of precipitation in 78 years, most in 1942 with 9.
Calliope Post Office: days with 100 mm (3.94 in) or more of precipitation in 44 years, most in 1971 with 5.
5 fixed thresholds have at least one qualifying day at Calliope Post Office.

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

83 years with a qualifying day

Days per year at Calliope Post Office with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 56 in 1956.

Days with 10 mm (0.39 in) or more of precipitation per year at Calliope Post Office
Year	Days	Decade average
1915	13	20.8
1916	27	20.8
1917	30	20.8
1918	23	20.8
1919	11	20.8
1920	28	26.6
1921	27	26.6
1922	20	26.6
1923	20	26.6
1924	27	26.6
1925	24	26.6
1926	20	26.6
1927	40	26.6
1928	35	26.6
1929	25	26.6
1930	33	24.3
1931	21	24.3
1932	14	24.3
1933	29	24.3
1934	29	24.3
1935	21	24.3
1936	21	24.3
1937	22	24.3
1938	26	24.3
1939	27	24.3
1940	28	24.9
1941	27	24.9
1942	24	24.9
1943	30	24.9
1944	21	24.9
1945	25	24.9
1946	19	24.9
1947	30	24.9
1948	19	24.9
1949	26	24.9
1950	32	28.8
1951	18	28.8
1952	32	28.8
1953	28	28.8
1954	31	28.8
1955	33	28.8
1956	56	28.8
1957	11	28.8
1958	23	28.8
1959	24	28.8
1960	23	24.2
1961	29	24.2
1962	27	24.2
1963	20	24.2
1964	22	24.2
1965	18	24.2
1966	28	24.2
1967	29	24.2
1968	27	24.2
1969	19	24.2
1970	23	26.6
1971	33	26.6
1972	18	26.6
1973	36	26.6
1974	27	26.6
1975	28	26.6
1976	28	26.6
1977	16	26.6
1978	30	26.6
1980	20	25.3
1981	28	25.3
1982	19	25.3
1983	34	25.3
1984	21	25.3
1985	27	25.3
1986	27	25.3
1987	23	25.3
1988	28	25.3
1989	26	25.3
1990	20	21.4
1991	21	21.4
1992	20	21.4
1993	24	21.4
1994	15	21.4
1995	22	21.4
1996	30	21.4
1997	19	21.4
1998	22	21.4

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

First to last qualifying date each year at Calliope Post Office
Year	First date	Last date
1915	1915-01-05	1915-11-26
1916	1916-01-30	1916-12-29
1917	1917-01-15	1917-12-26
1918	1918-01-04	1918-11-28
1919	1919-02-12	1919-11-09
1920	1920-01-02	1920-12-09
1921	1921-01-10	1921-12-31
1922	1922-01-01	1922-12-20
1923	1923-01-02	1923-12-28
1924	1924-01-27	1924-12-17
1925	1925-01-05	1925-12-31
1926	1926-01-01	1926-12-31
1927	1927-01-11	1927-12-23
1928	1928-01-09	1928-12-26
1929	1929-01-12	1929-12-22
1930	1930-01-01	1930-12-19
1931	1931-01-21	1931-12-23
1932	1932-01-14	1932-12-23
1933	1933-01-25	1933-12-29
1934	1934-02-01	1934-12-28
1935	1935-01-02	1935-11-14
1936	1936-01-13	1936-12-25
1937	1937-01-13	1937-12-31
1938	1938-01-19	1938-12-15
1939	1939-01-19	1939-12-28
1940	1940-01-06	1940-12-29
1941	1941-01-04	1941-11-24
1942	1942-01-18	1942-12-31
1943	1943-01-04	1943-12-30
1944	1944-01-27	1944-12-22
1945	1945-01-02	1945-12-20
1946	1946-01-08	1946-12-15
1947	1947-01-12	1947-12-26
1948	1948-01-03	1948-12-24
1949	1949-01-01	1949-12-17
1950	1950-01-03	1950-12-05
1951	1951-01-09	1951-12-14
1952	1952-01-09	1952-12-24
1953	1953-01-02	1953-12-28
1954	1954-01-03	1954-12-18
1955	1955-01-10	1955-12-25
1956	1956-01-05	1956-12-23
1957	1957-01-10	1957-11-06
1958	1958-01-26	1958-12-30
1959	1959-01-03	1959-12-26
1960	1960-01-06	1960-12-29
1961	1961-01-03	1961-12-28
1962	1962-01-05	1962-12-31
1963	1963-01-12	1963-12-14
1964	1964-01-01	1964-11-06
1965	1965-01-07	1965-12-15
1966	1966-01-24	1966-12-09
1967	1967-01-06	1967-12-25
1968	1968-01-03	1968-12-29
1969	1969-01-02	1969-12-25
1970	1970-01-19	1970-12-30
1971	1971-01-09	1971-12-28
1972	1972-01-19	1972-11-22
1973	1973-01-08	1973-12-21
1974	1974-01-01	1974-12-30
1975	1975-01-05	1975-12-25
1976	1976-01-15	1976-12-25
1977	1977-01-18	1977-12-21
1978	1978-01-17	1978-12-31
1980	1980-01-07	1980-12-31
1981	1981-01-01	1981-12-30
1982	1982-01-14	1982-12-21
1983	1983-01-01	1983-12-02
1984	1984-01-06	1984-12-20
1985	1985-01-01	1985-12-30
1986	1986-01-03	1986-12-30
1987	1987-01-24	1987-12-30
1988	1988-01-03	1988-12-28
1989	1989-02-01	1989-12-15
1990	1990-03-03	1990-12-29
1991	1991-01-02	1991-12-22
1992	1992-01-01	1992-12-10
1993	1993-01-06	1993-12-24
1994	1994-01-09	1994-12-26
1995	1995-01-04	1995-12-24
1996	1996-01-02	1996-12-19
1997	1997-01-26	1997-12-29
1998	1998-01-30	1998-12-22

Every Fixed Threshold

Fixed thresholds at Calliope Post Office
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	83	56	1956	22
25 mm (0.98 in): Days with 25 mm or more rain	83	26	1956	7
50 mm (1.97 in): Days with 50 mm or more rain	78	9	1942	3
100 mm (3.94 in): Days with 100 mm or more rain	44	5	1971	1
200 mm (7.87 in): Days with 200 mm or more rain	15	2	1942	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.

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Data for Calliope Post Office 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 2026-10-13 (13 October 2026). Threshold counts are computed by this site.

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

Calliope Post Office Threshold Days by Year

Key Facts for Calliope Post Office Thresholds

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

Every Fixed Threshold

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