Weather & Climate in Merredin, Australia

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Merredin enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 78°F in January while summers reach 52°F in July / relatively mild seasonal variation. The area gets 313 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 12.6 inches (drier than the 38-inch national average). The city sits at an elevation of 1,050 feet.

Temperature

78°F Jan (26°C) 52°F Jul (11°C)

Annual Average	64.4°F
	19% above US avg
January Average	78°F (26°C)
July Average	52°F (11°C)
Sunny Days	313 days/yr

Geography

Elevation	1,050 ft (320 m)
Area	96.6 sq mi (250.1 km²)
Population Density	30/sq mi
Coordinates	-31.4809°N, 118.2745°W
Timezone	Australia/Perth

Precipitation & Snow

Annual Rainfall 12.6"

67% below US avg

Snowfall 0.0"

Wettest Month (Jun) 1.81"

Driest Month (Jan) 0.47"

Air Quality

Earthquake History

104 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.

Jan 17, 1990	30 km E of Northam, Australia	M5.2	123 km	7 km
Mar 5, 2002	113 km E of Moora, Australia	M4.8	149 km	10 km
Sep 28, 2001	133 km E of Moora, Australia	M4.7	141 km	10 km
Aug 18, 2024	62 km WNW of Merredin, Australia	M4.6	62 km	8 km
Mar 23, 2002	117 km E of Moora, Australia	M4.6	149 km	10 km
Mar 27, 1997	37 km W of Merredin, Australia	M4.6	38 km	10 km
Mar 5, 2009	149 km NNW of Merredin, Australia	M4.6	149 km	0 km
Mar 5, 2002	129 km NNW of Merredin, Australia	M4.6	130 km	10 km
Jan 3, 2017	98 km N of Merredin, Australia	M4.5	99 km	10 km
Aug 18, 2024	70 km WNW of Merredin, Australia	M4.4	71 km	10 km
Sep 15, 2019	133 km NNW of Merredin, Australia	M4.4	134 km	10 km
Jan 31, 2009	147 km NNW of Merredin, Australia	M4.3	148 km	0 km
Jun 12, 2005	102 km NNE of Northam, Australia	M4.3	134 km	2 km
Jan 31, 2009	146 km NNW of Merredin, Australia	M4.2	147 km	2 km
Mar 27, 2025	57 km WNW of Merredin, Australia	M4.2	58 km	10 km
Jun 30, 2007	107 km NNE of Northam, Australia	M4.2	133 km	8 km
Jun 25, 2009	122 km NW of Merredin, Australia	M4.2	123 km	0 km
Mar 16, 2005	122 km NW of Merredin, Australia	M4.2	123 km	0 km
Oct 2, 2024	50 km NW of Merredin, Australia	M4.1	50 km	10 km
Aug 21, 2022	117 km NW of Merredin, Australia	M4.1	117 km	10 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	78°F (26°C)	0.5 in	Warmest, Driest
February	78°F (25°C)	0.7 in
March	73°F (23°C)	0.9 in
April	66°F (19°C)	1.0 in
May	59°F (15°C)	1.5 in
June	53°F (12°C)	1.8 in	Wettest
July	52°F (11°C)	1.8 in	Coldest
August	52°F (11°C)	1.6 in
September	56°F (14°C)	1.0 in
October	62°F (17°C)	0.6 in
November	68°F (20°C)	0.7 in
December	75°F (24°C)	0.5 in

Merredin has a seasonal temperature swing of 27°F / from 52°F in July to 78°F in January. Total annual precipitation is 12.6 inches, with June being the wettest month (1.8") and January the driest (0.5").

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