Somerton Post Office Threshold Days by Year

4 fixed thresholds counted per year at Somerton Post Office (ASN00055050): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Somerton Post Office Thresholds

Somerton Post Office: days with 10 mm (0.39 in) or more of precipitation in 75 years, most in 1969 with 35.
Somerton Post Office: days with 25 mm (0.98 in) or more of precipitation in 74 years, most in 1949 with 11.
Somerton Post Office: days with 50 mm (1.97 in) or more of precipitation in 45 years, most in 1955 with 4.
Somerton Post Office: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1907 with 1.
4 fixed thresholds have at least one qualifying day at Somerton Post Office.

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

75 years with a qualifying day

Days per year at Somerton Post Office with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1969.

Days with 10 mm (0.39 in) or more of precipitation per year at Somerton Post Office
Year	Days	Decade average
1904	28	23
1905	20	23
1906	20	23
1907	22	23
1908	20	23
1909	28	23
1910	22	18.4
1911	18	18.4
1912	14	18.4
1913	19	18.4
1914	14	18.4
1915	14	18.4
1916	26	18.4
1917	23	18.4
1918	21	18.4
1919	13	18.4
1920	29	21
1921	25	21
1922	17	21
1923	14	21
1924	26	21
1925	15	21
1931	26	22.2
1932	23	22.2
1933	26	22.2
1934	20	22.2
1935	16	22.2
1940	11	19.9
1941	22	19.9
1942	16	19.9
1943	21	19.9
1944	16	19.9
1945	20	19.9
1947	22	19.9
1948	22	19.9
1949	29	19.9
1950	31	20.7
1951	15	20.7
1952	23	20.7
1953	16	20.7
1954	15	20.7
1955	25	20.7
1956	28	20.7
1957	14	20.7
1958	19	20.7
1959	21	20.7
1960	17	19.3
1961	23	19.3
1962	15	19.3
1963	21	19.3
1964	22	19.3
1965	7	19.3
1966	16	19.3
1967	12	19.3
1968	25	19.3
1969	35	19.3
1970	28	20.1
1973	23	20.1
1974	15	20.1
1975	19	20.1
1976	19	20.1
1977	18	20.1
1978	19	20.1
1981	16	23
1982	17	23
1983	27	23
1987	27	23
1988	25	23
1989	26	23
1990	22	18.7
1991	21	18.7
1992	17	18.7
1993	20	18.7
1994	14	18.7
1995	18	18.7

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

First to last qualifying date each year at Somerton Post Office
Year	First date	Last date
1904	1904-01-27	1904-12-18
1905	1905-01-16	1905-12-16
1906	1906-01-12	1906-11-29
1907	1907-01-12	1907-12-28
1908	1908-01-08	1908-12-13
1909	1909-01-21	1909-12-24
1910	1910-01-11	1910-12-18
1911	1911-01-12	1911-12-30
1912	1912-01-01	1912-11-21
1913	1913-01-30	1913-12-19
1914	1914-02-28	1914-12-31
1915	1915-02-09	1915-12-20
1916	1916-01-01	1916-12-14
1917	1917-01-13	1917-12-29
1918	1918-01-02	1918-11-27
1919	1919-01-08	1919-12-29
1920	1920-01-05	1920-12-31
1921	1921-01-10	1921-12-31
1922	1922-01-08	1922-12-26
1923	1923-01-08	1923-12-27
1924	1924-01-01	1924-12-16
1925	1925-01-05	1925-12-15
1931	1931-01-19	1931-12-23
1932	1932-02-01	1932-12-24
1933	1933-01-20	1933-12-22
1934	1934-01-08	1934-12-22
1935	1935-01-05	1935-12-09
1940	1940-01-07	1940-12-30
1941	1941-01-01	1941-10-27
1942	1942-01-21	1942-12-12
1943	1943-01-01	1943-12-28
1944	1944-01-14	1944-12-22
1945	1945-01-14	1945-12-19
1947	1947-01-31	1947-12-19
1948	1948-01-02	1948-12-31
1949	1949-01-10	1949-12-09
1950	1950-01-18	1950-11-25
1951	1951-01-16	1951-11-26
1952	1952-01-07	1952-12-31
1953	1953-01-15	1953-11-26
1954	1954-01-03	1954-11-21
1955	1955-01-22	1955-12-20
1956	1956-01-21	1956-12-22
1957	1957-01-04	1957-12-31
1958	1958-01-20	1958-12-20
1959	1959-01-03	1959-12-23
1960	1960-01-05	1960-12-15
1961	1961-01-03	1961-12-31
1962	1962-01-05	1962-12-15
1963	1963-01-04	1963-12-16
1964	1964-01-13	1964-10-31
1965	1965-04-13	1965-12-15
1966	1966-01-18	1966-12-31
1967	1967-01-12	1967-12-30
1968	1968-01-05	1968-12-17
1969	1969-01-02	1969-12-23
1970	1970-01-12	1970-12-29
1973	1973-01-13	1973-12-31
1974	1974-01-01	1974-11-27
1975	1975-01-04	1975-12-20
1976	1976-01-13	1976-12-13
1977	1977-01-12	1977-11-18
1978	1978-01-05	1978-12-29
1981	1981-02-09	1981-12-10
1982	1982-01-15	1982-12-31
1983	1983-01-03	1983-12-12
1987	1987-01-02	1987-12-30
1988	1988-01-03	1988-12-27
1989	1989-01-01	1989-12-11
1990	1990-01-08	1990-12-31
1991	1991-01-06	1991-12-31
1992	1992-01-01	1992-12-14
1993	1993-01-24	1993-12-08
1994	1994-01-13	1994-12-26
1995	1995-01-07	1995-12-30

Every Fixed Threshold

Fixed thresholds at Somerton 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	75	35	1969	18
25 mm (0.98 in): Days with 25 mm or more rain	74	11	1949	2
50 mm (1.97 in): Days with 50 mm or more rain	45	4	1955	2
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1907	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1904.

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

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

Somerton Post Office Threshold Days by Year

Key Facts for Somerton Post Office Thresholds

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

Every Fixed Threshold

Download the Data

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