Mount Helena, Australia

Full City Profile

2.6 /5.0

C+ Fair

3,070 Population 277/sq mi density

925 ft Elevation 282 meters

64°F Avg Temperature 18°C

C+

Overall

2.6 / 5.0

Fair overall score based on economy, affordability, safety and education

C+

Economy

2.8 / 5.0

$27,851 median income, 4.5% unemployment

Affordability

2.3 / 5.0

$214,000 home value, $1,070/mo rent

Mount Helena enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 76°F in January while summers reach 53°F in July. The area gets 343 sunny days per year. Annual precipitation totals 22.0 inches. The area receives 0.0 inches of snow annually.

Temperature

76°F Jan (24°C) 53°F Jul (12°C)

Annual Average	63.7°F
	18% above US avg
January Average	76°F (24°C)
July Average	53°F (12°C)
Sunny Days	343 days/yr

Geography

Elevation	925 ft (282 m)
Area	11.1 sq mi (28.7 km²)
Population Density	277/sq mi
Coordinates	-31.8761°N, 116.2103°W
Timezone	Australia/Perth

Precipitation & Snow

Annual Rainfall 22.0"

42% below US avg

Snowfall 0.0"

Wettest Month (Jul) 6.57"

Driest Month (Dec) 0.43"

Air Quality

Earthquake History

24 earthquakes (M2.5+) within 150 km since 1990. Strongest: M5.2. Most recent: M4.0 on Jan 25, 2025.

Jan 17, 1990	30 km E of Northam, Australia	M5.2	78 km
Dec 20, 1996	61 km N of Toodyay, Australia	M4.5	103 km
Jun 12, 2005	102 km NNE of Northam, Australia	M4.3	147 km
Mar 24, 2003	36 km NE of York, Australia	M4.0	85 km
Jan 25, 2025	59 km ENE of York, Australia	M4.0	110 km
Jan 20, 1993	45 km E of Northam, Australia	M3.9	93 km
May 3, 2008	84 km NE of Northam, Australia	M3.7	135 km
Mar 15, 1999	35 km NE of York, Australia	M3.7	83 km
Jan 5, 1998	41 km ENE of Northam, Australia	M3.6	91 km
Apr 23, 1992	68 km NNE of Toodyay, Australia	M3.3	112 km
Jan 5, 1994	40 km ENE of Beverley, Australia	M3.2	107 km
Jun 2, 2005	52 km ENE of Northam, Australia	M3.0	103 km
Mar 25, 2005	74 km NE of Northam, Australia	M2.9	124 km
Sep 4, 2004	Western Australia	M2.8	133 km
Jul 18, 2003	42 km N of Toodyay, Australia	M2.8	85 km
May 6, 2005	5 km NW of Bullsbrook, Australia	M2.8	36 km
Jun 12, 2002	30 km SSE of Beverley, Australia	M2.7	99 km
Apr 23, 2001	19 km WNW of Narrogin, Australia	M2.7	134 km
Mar 15, 2005	46 km NE of Boddington, Australia	M2.7	94 km
May 12, 2005	31 km ENE of Beverley, Australia	M2.6	94 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

1 hurricane (Cat 1+) within 500 km since 1980. Strongest: Category 1. Most recent: Seroja (2021).

Year	Name	Category	Closest
2021	Seroja	Category 1	277 km

Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	76°F (24°C)	0.6 in	Warmest
February	74°F (24°C)	0.7 in
March	71°F (22°C)	0.8 in
April	65°F (18°C)	1.6 in
May	58°F (15°C)	4.1 in
June	54°F (12°C)	6.3 in
July	53°F (12°C)	6.6 in	Wettest
August	53°F (11°C)	5.2 in	Coldest
September	55°F (13°C)	3.6 in
October	58°F (15°C)	2.1 in
November	64°F (18°C)	1.1 in
December	70°F (21°C)	0.4 in	Driest

Mount Helena has a seasonal temperature swing of 23°F / from 53°F in August to 76°F in January. Total annual precipitation is 33.2 inches, with July being the wettest month (6.6") and December the driest (0.4").

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