Merredin Threshold Days by Year (ASN00010092)

13 fixed thresholds counted per year at Merredin (ASN00010092): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Merredin Thresholds

Merredin: days with 10 mm (0.39 in) or more of precipitation in 117 years, most in 1917 with 20.
Merredin: days with 25 mm (0.98 in) or more of precipitation in 80 years, most in 1978 with 5.
Merredin: nights with a minimum temperature at or above 20 C (68 F) in 59 years, most in 1978 with 48.
Merredin: days with a maximum temperature at or above 30 C (86 F) in 58 years, most in 2019 with 142.
13 fixed thresholds have at least one qualifying day at Merredin.

Days at or above 30 C (86 F)

58 years with a qualifying day

Days per year at Merredin with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 142 in 2019.

Days at or above 30 C (86 F) per year at Merredin
Year	Days	Decade average
1966	88	92.5
1967	98	92.5
1968	74	92.5
1969	110	92.5
1970	104	100.3
1971	92	100.3
1973	101	100.3
1974	97	100.3
1975	95	100.3
1976	108	100.3
1977	108	100.3
1978	97	100.3
1979	101	100.3
1980	109	94.5
1981	77	94.5
1982	104	94.5
1983	99	94.5
1984	77	94.5
1985	101	94.5
1986	88	94.5
1987	103	94.5
1988	97	94.5
1989	90	94.5
1990	93	104.2
1991	117	104.2
1992	85	104.2
1993	100	104.2
1994	122	104.2
1995	90	104.2
1996	102	104.2
1997	108	104.2
1998	122	104.2
1999	103	104.2
2000	96	104.2
2001	84	104.2
2002	112	104.2
2003	112	104.2
2004	105	104.2
2005	96	104.2
2006	102	104.2
2007	110	104.2
2008	101	104.2
2009	124	104.2
2010	124	120.4
2011	115	120.4
2012	117	120.4
2013	129	120.4
2014	131	120.4
2015	122	120.4
2016	113	120.4
2017	103	120.4
2018	108	120.4
2019	142	120.4
2020	109	97.2
2021	112	97.2
2022	102	97.2
2023	137	97.2
2026	26	97.2

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

First to last qualifying date each year at Merredin
Year	First date	Last date
1966	1966-01-01	1966-12-31
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-30
1969	1969-01-01	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-31
1975	1975-01-01	1975-12-31
1976	1976-01-01	1976-12-30
1977	1977-01-01	1977-12-31
1978	1978-01-03	1978-12-30
1979	1979-01-01	1979-12-30
1980	1980-01-01	1980-12-29
1981	1981-01-01	1981-12-28
1982	1982-01-02	1982-12-30
1983	1983-01-01	1983-12-28
1984	1984-01-02	1984-12-30
1985	1985-01-02	1985-12-31
1986	1986-01-01	1986-12-31
1987	1987-01-01	1987-12-29
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
1992	1992-01-01	1992-12-31
1993	1993-01-01	1993-12-31
1994	1994-01-01	1994-12-31
1995	1995-01-01	1995-12-23
1996	1996-01-01	1996-12-31
1997	1997-01-01	1997-12-31
1998	1998-01-01	1998-12-31
1999	1999-01-01	1999-12-31
2000	2000-01-01	2000-12-31
2001	2001-01-01	2001-12-31
2002	2002-01-01	2002-12-28
2003	2003-01-01	2003-12-31
2004	2004-01-01	2004-12-31
2005	2005-01-01	2005-12-30
2006	2006-01-04	2006-12-31
2007	2007-01-01	2007-12-31
2008	2008-01-01	2008-12-31
2009	2009-01-01	2009-12-31
2010	2010-01-01	2010-12-31
2011	2011-01-01	2011-12-31
2012	2012-01-01	2012-12-31
2013	2013-01-01	2013-12-31
2014	2014-01-01	2014-12-31
2015	2015-01-01	2015-12-31
2016	2016-01-01	2016-12-26
2017	2017-01-05	2017-12-31
2018	2018-01-01	2018-12-31
2019	2019-01-01	2019-12-31
2020	2020-01-01	2020-12-31
2021	2021-01-01	2021-12-31
2022	2022-01-01	2022-12-31
2023	2023-01-01	2023-12-31
2026	2026-01-04	2026-10-06

Every Fixed Threshold

Fixed thresholds at Merredin
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	58	142	2019	26
35 C (95 F): Days	58	73	2019	18
40 C (104 F): Days	58	21	2019	7
45 C (113 F): Days	9	2	2010	1
90 F (32.2 C): Days	58	113	2019	22
100 F (37.8 C): Days	58	39	2019	7
110 F (43.3 C): Days	27	4	1997	1
0 C (32 F): Frost days (min	55	17	1968	8
20 C (68 F): Tropical nights (min	59	48	1978	15
25 C (77 F): Days with min	53	9	2015	7
10 mm (0.39 in): Days with 10 mm or more rain	117	20	1917	2
25 mm (0.98 in): Days with 25 mm or more rain	80	5	1978	1
50 mm (1.97 in): Days with 50 mm or more rain	17	1	1917	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1966.

Download the Data

Data for Merredin 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Merredin Threshold Days by Year (ASN00010092)

Key Facts for Merredin Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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