Merrigum Threshold Days by Year

3 fixed thresholds counted per year at Merrigum (ASN00081031): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Merrigum Thresholds

Merrigum: days with 10 mm (0.39 in) or more of precipitation in 61 years, most in 1973 with 31.
Merrigum: days with 25 mm (0.98 in) or more of precipitation in 53 years, most in 1973 with 9.
Merrigum: days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1955 with 3.
3 fixed thresholds have at least one qualifying day at Merrigum.

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

61 years with a qualifying day

Days per year at Merrigum with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1973.

Days with 10 mm (0.39 in) or more of precipitation per year at Merrigum
Year	Days	Decade average
1887	21	14.7
1888	4	14.7
1889	19	14.7
1890	16	15.8
1891	19	15.8
1892	14	15.8
1893	14	15.8
1903	15	14
1904	15	14
1905	12	14
1925	10	10.4
1926	11	10.4
1927	8	10.4
1928	17	10.4
1929	6	10.4
1930	12	14.4
1931	15	14.4
1932	16	14.4
1933	12	14.4
1934	20	14.4
1936	16	14.4
1937	9	14.4
1938	5	14.4
1939	25	14.4
1940	7	10.5
1941	12	10.5
1942	11	10.5
1943	4	10.5
1944	5	10.5
1945	10	10.5
1946	11	10.5
1947	17	10.5
1948	11	10.5
1949	17	10.5
1950	13	15.2
1951	11	15.2
1952	14	15.2
1953	14	15.2
1954	15	15.2
1955	19	15.2
1956	29	15.2
1957	8	15.2
1958	17	15.2
1959	12	15.2
1960	16	13.3
1961	9	13.3
1962	12	13.3
1963	18	13.3
1964	13	13.3
1965	11	13.3
1966	16	13.3
1967	9	13.3
1968	15	13.3
1969	14	13.3
1970	15	16.1
1971	12	16.1
1972	6	16.1
1973	31	16.1
1974	21	16.1
1975	19	16.1
1976	9	16.1

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

First to last qualifying date each year at Merrigum
Year	First date	Last date
1887	1887-02-15	1887-12-24
1888	1888-05-04	1888-12-29
1889	1889-01-03	1889-11-17
1890	1890-03-18	1890-12-29
1891	1891-01-09	1891-11-20
1892	1892-02-16	1892-12-11
1893	1893-05-02	1893-12-28
1903	1903-03-05	1903-12-29
1904	1904-01-02	1904-12-15
1905	1905-04-09	1905-09-10
1925	1925-01-13	1925-11-20
1926	1926-01-05	1926-09-04
1927	1927-05-11	1927-12-10
1928	1928-01-19	1928-10-20
1929	1929-04-03	1929-12-01
1930	1930-03-12	1930-12-25
1931	1931-03-19	1931-11-16
1932	1932-03-08	1932-12-16
1933	1933-01-20	1933-12-15
1934	1934-01-08	1934-12-30
1936	1936-01-10	1936-12-17
1937	1937-01-25	1937-10-18
1938	1938-01-16	1938-06-24
1939	1939-02-17	1939-11-04
1940	1940-03-19	1940-11-12
1941	1941-01-04	1941-11-05
1942	1942-01-20	1942-11-22
1943	1943-01-22	1943-09-17
1944	1944-03-10	1944-12-12
1945	1945-01-14	1945-10-27
1946	1946-01-18	1946-11-08
1947	1947-03-30	1947-12-25
1948	1948-02-14	1948-12-28
1949	1949-02-21	1949-11-22
1950	1950-03-17	1950-12-21
1951	1951-01-07	1951-10-11
1952	1952-04-17	1952-12-11
1953	1953-01-15	1953-11-07
1954	1954-01-29	1954-12-11
1955	1955-01-29	1955-12-04
1956	1956-01-19	1956-11-16
1957	1957-03-01	1957-10-23
1958	1958-01-30	1958-11-25
1959	1959-01-26	1959-12-25
1960	1960-01-09	1960-12-03
1961	1961-01-01	1961-12-14
1962	1962-01-17	1962-12-30
1963	1963-01-02	1963-12-06
1964	1964-04-09	1964-10-17
1965	1965-05-31	1965-12-07
1966	1966-03-16	1966-12-25
1967	1967-01-29	1967-10-14
1968	1968-01-21	1968-12-24
1969	1969-02-10	1969-12-02
1970	1970-01-03	1970-11-16
1971	1971-01-31	1971-12-23
1972	1972-01-13	1972-11-03
1973	1973-01-13	1973-12-30
1974	1974-01-04	1974-11-27
1975	1975-03-19	1975-12-29
1976	1976-01-13	1976-12-24

Every Fixed Threshold

Fixed thresholds at Merrigum
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	61	31	1973	9
25 mm (0.98 in): Days with 25 mm or more rain	53	9	1973	2
50 mm (1.97 in): Days with 50 mm or more rain	15	3	1955	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1887.

Download the Data

Data for Merrigum 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).

Merrigum Threshold Days by Year

Key Facts for Merrigum Thresholds

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

Every Fixed Threshold

Download the Data

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