Western River Threshold Days by Year (ASN00022812)

3 fixed thresholds counted per year at Western River (ASN00022812): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Western River Thresholds

Western River: days with 10 mm (0.39 in) or more of precipitation in 54 years, most in 1971 with 30.
Western River: days with 25 mm (0.98 in) or more of precipitation in 50 years, most in 1942 with 6.
Western River: days with 50 mm (1.97 in) or more of precipitation in 8 years, most in 1955 with 2.
3 fixed thresholds have at least one qualifying day at Western River.

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

54 years with a qualifying day

Days per year at Western River with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1971.

Days with 10 mm (0.39 in) or more of precipitation per year at Western River
Year	Days	Decade average
1931	23	17.8
1932	22	17.8
1933	13	17.8
1934	16	17.8
1935	21	17.8
1936	9	17.8
1937	15	17.8
1938	22	17.8
1939	19	17.8
1940	19	18.3
1941	10	18.3
1942	23	18.3
1943	21	18.3
1944	16	18.3
1945	12	18.3
1946	19	18.3
1947	26	18.3
1948	21	18.3
1949	16	18.3
1950	21	20.4
1951	27	20.4
1952	22	20.4
1953	24	20.4
1954	16	20.4
1955	21	20.4
1956	24	20.4
1957	20	20.4
1958	22	20.4
1959	7	20.4
1960	19	16.9
1961	10	16.9
1962	14	16.9
1963	14	16.9
1964	20	16.9
1965	18	16.9
1966	24	16.9
1969	16	16.9
1970	16	19.6
1971	30	19.6
1972	20	19.6
1973	15	19.6
1974	24	19.6
1975	22	19.6
1976	16	19.6
1977	12	19.6
1978	20	19.6
1979	21	19.6
1980	18	21.1
1981	21	21.1
1982	15	21.1
1983	28	21.1
1984	22	21.1
1988	24	21.1
1989	20	21.1

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

First to last qualifying date each year at Western River
Year	First date	Last date
1931	1931-03-03	1931-11-16
1932	1932-02-05	1932-10-12
1933	1933-04-10	1933-10-05
1934	1934-01-06	1934-11-08
1935	1935-03-21	1935-11-22
1936	1936-01-07	1936-10-18
1937	1937-02-17	1937-11-30
1938	1938-02-19	1938-12-27
1939	1939-01-25	1939-10-31
1940	1940-01-05	1940-11-09
1941	1941-01-23	1941-09-20
1942	1942-02-07	1942-11-21
1943	1943-02-11	1943-12-16
1944	1944-04-07	1944-12-21
1945	1945-02-18	1945-12-16
1946	1946-01-17	1946-12-25
1947	1947-03-26	1947-11-08
1948	1948-04-09	1948-12-16
1949	1949-02-20	1949-11-21
1950	1950-04-04	1950-12-19
1951	1951-01-04	1951-10-25
1952	1952-01-24	1952-11-26
1953	1953-01-27	1953-12-09
1954	1954-04-06	1954-12-12
1955	1955-04-24	1955-12-03
1956	1956-04-15	1956-09-19
1957	1957-03-13	1957-09-15
1958	1958-03-07	1958-10-15
1959	1959-02-12	1959-10-28
1960	1960-01-17	1960-11-12
1961	1961-04-04	1961-10-20
1962	1962-02-20	1962-10-09
1963	1963-04-25	1963-09-04
1964	1964-04-08	1964-11-18
1965	1965-05-07	1965-11-24
1966	1966-03-16	1966-12-03
1969	1969-01-11	1969-09-13
1970	1970-01-01	1970-09-27
1971	1971-03-31	1971-12-21
1972	1972-01-11	1972-10-10
1973	1973-03-18	1973-12-02
1974	1974-01-29	1974-10-31
1975	1975-01-25	1975-11-24
1976	1976-01-09	1976-12-23
1977	1977-01-15	1977-09-12
1978	1978-05-11	1978-09-18
1979	1979-05-26	1979-11-15
1980	1980-04-18	1980-12-14
1981	1981-01-27	1981-11-09
1982	1982-01-07	1982-08-11
1983	1983-03-01	1983-12-31
1984	1984-03-11	1984-11-01
1988	1988-01-14	1988-11-20
1989	1989-05-05	1989-09-11

Every Fixed Threshold

Fixed thresholds at Western River
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	54	30	1971	20
25 mm (0.98 in): Days with 25 mm or more rain	50	6	1942	2
50 mm (1.97 in): Days with 50 mm or more rain	8	2	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 1931.

Download the Data

Data for Western River 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).

Western River Threshold Days by Year (ASN00022812)

Key Facts for Western River Thresholds

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

Every Fixed Threshold

Download the Data

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