Jacup Dam Threshold Days by Year (ASN00010689)

4 fixed thresholds counted per year at Jacup Dam (ASN00010689): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Jacup Dam Thresholds

Jacup Dam: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1977 with 18.
Jacup Dam: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 1955 with 6.
Jacup Dam: days with 50 mm (1.97 in) or more of precipitation in 11 years, most in 1955 with 3.
Jacup Dam: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1959 with 1.
4 fixed thresholds have at least one qualifying day at Jacup Dam.

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

44 years with a qualifying day

Days per year at Jacup Dam with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 18 in 1977.

Days with 10 mm (0.39 in) or more of precipitation per year at Jacup Dam
Year	Days	Decade average
1955	17	10
1956	4	10
1957	6	10
1958	13	10
1959	10	10
1960	14	10.7
1961	10	10.7
1962	7	10.7
1963	15	10.7
1964	15	10.7
1965	10	10.7
1966	8	10.7
1967	7	10.7
1968	14	10.7
1969	7	10.7
1970	7	10.7
1971	12	10.7
1972	6	10.7
1973	13	10.7
1974	13	10.7
1975	8	10.7
1976	10	10.7
1977	18	10.7
1978	10	10.7
1979	10	10.7
1980	6	8.9
1981	6	8.9
1982	7	8.9
1983	14	8.9
1984	11	8.9
1985	9	8.9
1986	9	8.9
1987	11	8.9
1988	6	8.9
1989	10	8.9
1990	11	9.8
1991	11	9.8
1992	17	9.8
1993	12	9.8
1994	5	9.8
1995	9	9.8
1996	8	9.8
1997	11	9.8
1999	4	9.8

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

First to last qualifying date each year at Jacup Dam
Year	First date	Last date
1955	1955-02-05	1955-10-28
1956	1956-02-29	1956-07-08
1957	1957-01-21	1957-10-27
1958	1958-02-13	1958-12-22
1959	1959-02-25	1959-11-27
1960	1960-01-01	1960-12-17
1961	1961-01-27	1961-12-16
1962	1962-05-13	1962-09-22
1963	1963-02-10	1963-10-17
1964	1964-01-30	1964-12-19
1965	1965-03-02	1965-11-29
1966	1966-01-02	1966-10-22
1967	1967-05-09	1967-10-08
1968	1968-01-27	1968-11-05
1969	1969-02-19	1969-11-04
1970	1970-02-17	1970-11-03
1971	1971-01-01	1971-11-24
1972	1972-05-31	1972-11-30
1973	1973-04-10	1973-11-14
1974	1974-03-04	1974-11-19
1975	1975-03-09	1975-11-17
1976	1976-01-07	1976-11-08
1977	1977-02-11	1977-12-29
1978	1978-02-24	1978-10-03
1979	1979-01-14	1979-09-23
1980	1980-01-16	1980-12-31
1981	1981-02-17	1981-11-07
1982	1982-01-21	1982-11-28
1983	1983-02-27	1983-12-31
1984	1984-05-20	1984-11-11
1985	1985-01-20	1985-10-15
1986	1986-02-22	1986-09-11
1987	1987-03-28	1987-12-25
1988	1988-03-24	1988-07-24
1989	1989-01-13	1989-11-19
1990	1990-01-29	1990-10-05
1991	1991-02-26	1991-12-12
1992	1992-03-18	1992-12-09
1993	1993-05-01	1993-11-17
1994	1994-05-24	1994-10-15
1995	1995-02-25	1995-12-19
1996	1996-05-31	1996-11-07
1997	1997-02-08	1997-09-29
1999	1999-01-06	1999-12-30

Every Fixed Threshold

Fixed thresholds at Jacup Dam
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	44	18	1977	4
25 mm (0.98 in): Days with 25 mm or more rain	35	6	1955	1
50 mm (1.97 in): Days with 50 mm or more rain	11	3	1955	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1959	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1955.

Download the Data

Data for Jacup Dam 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).

Jacup Dam Threshold Days by Year (ASN00010689)

Key Facts for Jacup Dam Thresholds

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

Every Fixed Threshold

Download the Data

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