Mount Morris Threshold Days by Year

4 fixed thresholds counted per year at Mount Morris (ASN00044052): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mount Morris Thresholds

Mount Morris: days with 10 mm (0.39 in) or more of precipitation in 83 years, most in 1950 with 38.
Mount Morris: days with 25 mm (0.98 in) or more of precipitation in 80 years, most in 1950 with 15.
Mount Morris: days with 50 mm (1.97 in) or more of precipitation in 57 years, most in 1950 with 5.
Mount Morris: days with 100 mm (3.94 in) or more of precipitation in 10 years, most in 1906 with 1.
4 fixed thresholds have at least one qualifying day at Mount Morris.

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

83 years with a qualifying day

Days per year at Mount Morris with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1950.

Days with 10 mm (0.39 in) or more of precipitation per year at Mount Morris
Year	Days	Decade average
1900	9	13.8
1901	10	13.8
1903	10	13.8
1906	24	13.8
1908	19	13.8
1909	11	13.8
1910	17	16.5
1911	16	16.5
1912	10	16.5
1913	20	16.5
1914	12	16.5
1915	8	16.5
1916	21	16.5
1917	28	16.5
1918	21	16.5
1919	12	16.5
1920	25	13.4
1921	21	13.4
1922	5	13.4
1923	11	13.4
1924	24	13.4
1925	12	13.4
1926	5	13.4
1927	11	13.4
1928	12	13.4
1929	8	13.4
1931	14	13.9
1932	9	13.9
1933	17	13.9
1934	9	13.9
1935	9	13.9
1936	23	13.9
1937	7	13.9
1938	13	13.9
1939	24	13.9
1940	15	12
1941	17	12
1942	8	12
1943	12	12
1944	11	12
1945	10	12
1946	6	12
1947	16	12
1948	12	12
1949	13	12
1950	38	16.8
1951	5	16.8
1952	11	16.8
1953	12	16.8
1954	20	16.8
1955	24	16.8
1956	24	16.8
1957	10	16.8
1958	10	16.8
1959	14	16.8
1960	14	13.1
1961	17	13.1
1962	22	13.1
1963	21	13.1
1964	10	13.1
1965	3	13.1
1966	11	13.1
1967	11	13.1
1968	9	13.1
1969	13	13.1
1970	8	16
1971	16	16
1972	10	16
1973	21	16
1974	20	16
1975	19	16
1976	21	16
1977	17	16
1978	20	16
1979	8	16
1980	9	14.1
1981	16	14.1
1982	13	14.1
1983	22	14.1
1984	18	14.1
1985	14	14.1
1986	9	14.1
1987	12	14.1

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

First to last qualifying date each year at Mount Morris
Year	First date	Last date
1900	1900-03-06	1900-12-21
1901	1901-03-10	1901-11-21
1903	1903-01-27	1903-12-11
1906	1906-01-28	1906-12-22
1908	1908-02-11	1908-12-21
1909	1909-01-16	1909-08-28
1910	1910-01-12	1910-12-09
1911	1911-01-10	1911-12-17
1912	1912-02-26	1912-12-24
1913	1913-01-03	1913-12-22
1914	1914-02-02	1914-12-26
1915	1915-01-22	1915-12-26
1916	1916-03-12	1916-12-31
1917	1917-01-03	1917-12-29
1918	1918-01-02	1918-12-30
1919	1919-01-20	1919-12-23
1920	1920-01-26	1920-12-06
1921	1921-01-04	1921-12-26
1922	1922-10-17	1922-12-21
1923	1923-02-12	1923-12-27
1924	1924-01-06	1924-12-14
1925	1925-01-12	1925-12-12
1926	1926-05-10	1926-12-07
1927	1927-01-06	1927-12-22
1928	1928-01-18	1928-12-29
1929	1929-02-04	1929-11-09
1931	1931-03-21	1931-12-07
1932	1932-02-07	1932-11-01
1933	1933-01-27	1933-12-14
1934	1934-02-21	1934-11-27
1935	1935-02-23	1935-12-30
1936	1936-01-06	1936-12-24
1937	1937-01-01	1937-11-21
1938	1938-01-10	1938-11-06
1939	1939-01-20	1939-12-20
1940	1940-01-30	1940-12-31
1941	1941-01-01	1941-12-24
1942	1942-04-26	1942-12-10
1943	1943-01-22	1943-11-13
1944	1944-02-11	1944-11-23
1945	1945-02-24	1945-12-07
1946	1946-01-18	1946-12-02
1947	1947-02-10	1947-12-12
1948	1948-01-01	1948-12-31
1949	1949-01-08	1949-11-13
1950	1950-01-02	1950-12-31
1951	1951-01-07	1951-12-24
1952	1952-03-01	1952-11-26
1953	1953-01-07	1953-10-31
1954	1954-01-17	1954-12-05
1955	1955-01-21	1955-11-30
1956	1956-01-12	1956-12-20
1957	1957-01-07	1957-12-31
1958	1958-01-01	1958-12-27
1959	1959-01-02	1959-12-18
1960	1960-01-22	1960-11-18
1961	1961-01-02	1961-12-12
1962	1962-01-02	1962-12-31
1963	1963-01-12	1963-11-29
1964	1964-01-13	1964-12-28
1965	1965-09-06	1965-12-14
1966	1966-01-06	1966-09-30
1967	1967-02-27	1967-12-29
1968	1968-01-06	1968-08-28
1969	1969-01-16	1969-12-22
1970	1970-01-28	1970-12-19
1971	1971-01-14	1971-12-27
1972	1972-01-06	1972-12-08
1973	1973-01-01	1973-12-18
1974	1974-01-01	1974-10-06
1975	1975-01-03	1975-12-31
1976	1976-01-12	1976-12-23
1977	1977-01-17	1977-11-21
1978	1978-01-16	1978-12-04
1979	1979-01-21	1979-10-24
1980	1980-02-03	1980-12-02
1981	1981-02-10	1981-12-24
1982	1982-01-08	1982-12-30
1983	1983-01-02	1983-12-31
1984	1984-01-01	1984-12-20
1985	1985-02-05	1985-12-08
1986	1986-02-04	1986-11-30
1987	1987-01-01	1987-11-18

Every Fixed Threshold

Fixed thresholds at Mount Morris
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	38	1950	12
25 mm (0.98 in): Days with 25 mm or more rain	80	15	1950	5
50 mm (1.97 in): Days with 50 mm or more rain	57	5	1950	3
100 mm (3.94 in): Days with 100 mm or more rain	10	1	1906	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1900.

Download the Data

Data for Mount Morris 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

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

Mount Morris Threshold Days by Year

Key Facts for Mount Morris Thresholds

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

Every Fixed Threshold

Download the Data

Related