Mount Isa Mine Threshold Days by Year

13 fixed thresholds counted per year at Mount Isa Mine (ASN00029126): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mount Isa Mine Thresholds

Mount Isa Mine: days with 10 mm (0.39 in) or more of precipitation in 89 years, most in 2011 with 30.
Mount Isa Mine: days with 25 mm (0.98 in) or more of precipitation in 88 years, most in 1977 with 12.
Mount Isa Mine: days with 50 mm (1.97 in) or more of precipitation in 58 years, most in 1997 with 5.
Mount Isa Mine: days with a maximum temperature at or above 30 C (86 F) in 43 years, most in 2002 with 258.
13 fixed thresholds have at least one qualifying day at Mount Isa Mine.

Days at or above 30 C (86 F)

43 years with a qualifying day

Days per year at Mount Isa Mine with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 258 in 2002.

Days at or above 30 C (86 F) per year at Mount Isa Mine
Year	Days	Decade average
1965	231	228
1966	211	228
1967	242	228
1968	228	228
1969	228	228
1970	230	209.7
1971	194	209.7
1972	219	209.7
1973	233	209.7
1974	178	209.7
1975	209	209.7
1976	199	209.7
1977	193	209.7
1978	216	209.7
1979	226	209.7
1980	251	233.6
1981	240	233.6
1982	215	233.6
1983	220	233.6
1984	212	233.6
1985	228	233.6
1986	250	233.6
1987	246	233.6
1988	248	233.6
1989	226	233.6
1990	250	247.5
1991	245	247.5
2000	213	234.2
2001	217	234.2
2002	258	234.2
2003	253	234.2
2004	241	234.2
2005	232	234.2
2007	227	234.2
2008	249	234.2
2009	218	234.2
2010	218	226.2
2011	186	226.2
2012	225	226.2
2013	244	226.2
2014	247	226.2
2018	237	226.2
2022	228	228

For each year, a bar from the first to the last day at Mount Isa Mine meeting 30 C (86 F).

First to last qualifying date each year at Mount Isa Mine
Year	First date	Last date
1965	1965-01-01	1965-12-31
1966	1966-01-01	1966-12-31
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-01	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-31
1975	1975-01-03	1975-12-31
1976	1976-01-01	1976-12-31
1977	1977-01-01	1977-12-31
1978	1978-01-01	1978-12-31
1979	1979-01-01	1979-12-30
1980	1980-01-01	1980-12-31
1981	1981-01-01	1981-12-31
1982	1982-01-01	1982-12-31
1983	1983-01-01	1983-12-31
1984	1984-01-01	1984-12-31
1985	1985-01-01	1985-12-31
1986	1986-01-01	1986-12-30
1987	1987-01-01	1987-12-31
1988	1988-01-01	1988-12-31
1989	1989-01-01	1989-12-31
1990	1990-01-01	1990-12-31
1991	1991-01-01	1991-12-31
2000	2000-01-01	2000-12-30
2001	2001-01-01	2001-12-30
2002	2002-01-01	2002-12-31
2003	2003-01-01	2003-12-31
2004	2004-01-01	2004-12-31
2005	2005-01-01	2005-12-31
2007	2007-01-02	2007-12-31
2008	2008-01-01	2008-12-31
2009	2009-01-05	2009-12-31
2010	2010-01-01	2010-12-31
2011	2011-01-02	2011-12-31
2012	2012-01-01	2012-12-31
2013	2013-01-01	2013-12-31
2014	2014-01-01	2014-12-31
2018	2018-01-02	2018-12-31
2022	2022-01-01	2022-12-31

Every Fixed Threshold

Fixed thresholds at Mount Isa Mine
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	43	258	2002	228
35 C (95 F): Days	43	175	2013	142
40 C (104 F): Days	43	65	2018	34
45 C (113 F): Days	2	1	1990	1
90 F (32.2 C): Days	43	228	2002	193
100 F (37.8 C): Days	43	119	2013	69
110 F (43.3 C): Days	11	5	2014	2
20 C (68 F): Tropical nights (min	27	230	1988	210
25 C (77 F): Days with min	27	117	1988	49
10 mm (0.39 in): Days with 10 mm or more rain	89	30	2011	15
25 mm (0.98 in): Days with 25 mm or more rain	88	12	1977	4
50 mm (1.97 in): Days with 50 mm or more rain	58	5	1997	2
100 mm (3.94 in): Days with 100 mm or more rain	11	1	1936	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1965.

Download the Data

Data for Mount Isa Mine 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Mount Isa Mine Threshold Days by Year

Key Facts for Mount Isa Mine Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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