Boonara Romley Threshold Days by Year

4 fixed thresholds counted per year at Boonara Romley (ASN00040721): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Boonara Romley Thresholds

Boonara Romley: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1983 with 34.
Boonara Romley: days with 25 mm (0.98 in) or more of precipitation in 42 years, most in 1971 with 18.
Boonara Romley: days with 50 mm (1.97 in) or more of precipitation in 31 years, most in 1968 with 4.
Boonara Romley: days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1970 with 1.
4 fixed thresholds have at least one qualifying day at Boonara Romley.

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

42 years with a qualifying day

Days per year at Boonara Romley with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1983.

Days with 10 mm (0.39 in) or more of precipitation per year at Boonara Romley
Year	Days	Decade average
1962	23	23
1963	19	23
1964	21	23
1965	21	23
1966	20	23
1967	31	23
1968	24	23
1969	25	23
1970	22	25
1971	30	25
1972	19	25
1973	22	25
1974	28	25
1975	26	25
1976	26	25
1977	18	25
1978	31	25
1979	28	25
1980	25	22.9
1981	22	22.9
1982	20	22.9
1983	34	22.9
1984	23	22.9
1985	18	22.9
1986	19	22.9
1987	19	22.9
1988	20	22.9
1989	29	22.9
1990	26	23.1
1991	25	23.1
1992	20	23.1
1993	25	23.1
1994	17	23.1
1995	23	23.1
1996	21	23.1
1997	17	23.1
1998	34	23.1
1999	23	23.1
2000	21	19
2001	18	19
2002	19	19
2003	18	19

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

First to last qualifying date each year at Boonara Romley
Year	First date	Last date
1962	1962-01-08	1962-12-31
1963	1963-01-01	1963-12-13
1964	1964-01-03	1964-12-28
1965	1965-01-28	1965-12-15
1966	1966-01-01	1966-12-31
1967	1967-01-06	1967-12-20
1968	1968-01-05	1968-12-19
1969	1969-02-06	1969-12-31
1970	1970-01-14	1970-12-27
1971	1971-01-01	1971-12-27
1972	1972-01-01	1972-12-10
1973	1973-01-08	1973-12-21
1974	1974-01-05	1974-12-07
1975	1975-01-04	1975-12-23
1976	1976-01-09	1976-12-31
1977	1977-01-06	1977-12-16
1978	1978-01-05	1978-12-18
1979	1979-01-19	1979-12-21
1980	1980-01-06	1980-12-31
1981	1981-01-02	1981-12-25
1982	1982-01-09	1982-12-11
1983	1983-01-01	1983-12-18
1984	1984-01-01	1984-12-29
1985	1985-01-19	1985-12-22
1986	1986-01-07	1986-12-30
1987	1987-01-05	1987-12-13
1988	1988-01-20	1988-12-28
1989	1989-01-06	1989-11-20
1990	1990-01-16	1990-12-25
1991	1991-01-20	1991-12-22
1992	1992-01-01	1992-12-09
1993	1993-01-09	1993-12-24
1994	1994-01-09	1994-12-11
1995	1995-01-20	1995-12-24
1996	1996-01-04	1996-12-19
1997	1997-01-27	1997-12-22
1998	1998-01-29	1998-12-30
1999	1999-01-02	1999-12-28
2000	2000-01-03	2000-12-30
2001	2001-01-28	2001-12-30
2002	2002-01-09	2002-12-25
2003	2003-02-05	2003-12-28

Every Fixed Threshold

Fixed thresholds at Boonara Romley
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	42	34	1983	18
25 mm (0.98 in): Days with 25 mm or more rain	42	18	1971	5
50 mm (1.97 in): Days with 50 mm or more rain	31	4	1968	2
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1970	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1962.

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Data for Boonara Romley 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

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

Boonara Romley Threshold Days by Year

Key Facts for Boonara Romley Thresholds

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

Every Fixed Threshold

Download the Data

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