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Weather & Climate in Glen Iris, Australia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Glen Iris enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 73°F in January while summers reach 57°F in July / relatively mild seasonal variation. The area gets 337 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 22.0 inches (drier than the 38-inch national average). The city sits at an elevation of 16 feet.
Temperature
73°F Jan (23°C)
57°F Jul (14°C)
| Annual Average | 63.8°F |
| 18% above US avg | |
| January Average | 73°F (23°C) |
| July Average | 57°F (14°C) |
| Sunny Days | 337 days/yr |
Geography
| Elevation | 16 ft (5 m) |
| Area | 1.9 sq mi (4.9 km²) |
| Population Density | 1,540/sq mi |
| Coordinates | -33.3371°N, 115.6743°W |
| Timezone | Australia/Perth |
Precipitation & Snow
Air Quality
Earthquake History
8 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Jan 24, 2022 | 23 km W of Wagin, Australia | M4.9 | 132 km | 7 km |
| Feb 5, 2023 | 24 km WSW of Wagin, Australia | M4.4 | 132 km | 10 km |
| Jan 22, 2022 | 32 km WSW of Wagin, Australia | M4.2 | 124 km | 10 km |
| Apr 8, 2009 | 43 km SW of Kojonup, Australia | M4.1 | 144 km | 0 km |
| Mar 4, 2006 | 9 km ESE of Donnybrook, Australia | M2.7 | 38 km | 0 km |
| Mar 15, 2005 | 46 km NE of Boddington, Australia | M2.7 | 142 km | 0 km |
| Apr 23, 2001 | 19 km WNW of Narrogin, Australia | M2.7 | 131 km | 10 km |
| Feb 18, 2002 | 22 km SE of Collie, Australia | M2.5 | 62 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 73°F (23°C) | 0.5 in | |
| February | 74°F (23°C) | 0.6 in | Warmest |
| March | 71°F (22°C) | 0.8 in | |
| April | 65°F (19°C) | 1.8 in | |
| May | 60°F (15°C) | 4.9 in | |
| June | 56°F (13°C) | 6.7 in | |
| July | 57°F (14°C) | 6.7 in | Wettest |
| August | 54°F (12°C) | 4.8 in | Coldest |
| September | 57°F (14°C) | 3.6 in | |
| October | 59°F (15°C) | 2.1 in | |
| November | 64°F (18°C) | 1.4 in | |
| December | 69°F (21°C) | 0.5 in | Driest |
Glen Iris has a seasonal temperature swing of 20°F / from 54°F in August to 74°F in February. Total annual precipitation is 34.4 inches, with July being the wettest month (6.7") and December the driest (0.5").