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Weather & Climate in Portland, Australia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Portland experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 63°F in January while summers reach 44°F in July / relatively mild seasonal variation. The area gets 323 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 21.3 inches (drier than the 38-inch national average). The city sits at an elevation of 3,087 feet.
Temperature
63°F Jan (17°C)
44°F Jul (6°C)
| Annual Average | 53.9°F |
| 0% below US avg | |
| January Average | 63°F (17°C) |
| July Average | 44°F (6°C) |
| Sunny Days | 323 days/yr |
Geography
| Elevation | 3,087 ft (941 m) |
| Area | 1,987.2 sq mi (5,146.9 km²) |
| Population Density | 1/sq mi |
| Coordinates | -33.3571°N, 149.9815°W |
| Timezone | Australia/Sydney |
Precipitation & Snow
Air Quality
Earthquake History
29 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.3.
| Aug 6, 1994 | 9 km WSW of Ellalong, Australia | M5.3 | 124 km | 10 km |
| Apr 22, 2025 | 18 km SW of Singleton, Australia | M5.1 | 124 km | 10 km |
| Aug 23, 2024 | 7 km ENE of Denman, Australia | M4.8 | 133 km | 10 km |
| Aug 24, 2024 | 8 km NE of Denman, Australia | M4.5 | 135 km | 11 km |
| Sep 6, 2024 | New South Wales, Australia | M4.4 | 133 km | 9 km |
| Apr 13, 2017 | 23 km WSW of Millthorpe, Australia | M4.2 | 97 km | 15 km |
| May 2, 2020 | 11 km ENE of Denman, Australia | M4.0 | 135 km | 16 km |
| Feb 14, 2002 | 1 km NNW of Yerrinbool, Australia | M3.9 | 122 km | 10 km |
| Mar 17, 1999 | 2 km SE of Picton, Australia | M3.8 | 110 km | 10 km |
| May 28, 2025 | 3 km WNW of Cobbitty, Australia | M3.6 | 95 km | 10 km |
| Sep 13, 1990 | New South Wales, Australia | M3.5 | 132 km | 10 km |
| Mar 8, 2024 | 14 km SSW of Woodford, Australia | M3.5 | 70 km | 9 km |
| May 20, 1991 | 23 km S of Cowra, Australia | M3.4 | 138 km | 10 km |
| Mar 1, 2025 | 12 km N of Denman, Australia | M3.3 | 137 km | 10 km |
| Aug 18, 2007 | 10 km NW of Mittagong, Australia | M3.2 | 119 km | 18 km |
| Apr 11, 2007 | 3 km SE of Stanwell Park, Australia | M3.1 | 138 km | 20 km |
| Jul 27, 2003 | 36 km NE of Crookwell, Australia | M3.1 | 99 km | 6 km |
| Jun 18, 2006 | 8 km W of Oakdale, Australia | M3.0 | 89 km | 12 km |
| Feb 23, 1990 | 49 km S of Denman, Australia | M3.0 | 88 km | 10 km |
| Feb 20, 2005 | 19 km S of Cowra, Australia | M2.9 | 141 km | 12 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 63°F (17°C) | 4.0 in | Wettest |
| February | 64°F (18°C) | 3.2 in | Warmest |
| March | 60°F (16°C) | 2.8 in | |
| April | 53°F (12°C) | 2.2 in | |
| May | 47°F (8°C) | 2.5 in | |
| June | 42°F (6°C) | 2.2 in | Coldest, Driest |
| July | 44°F (6°C) | 2.7 in | |
| August | 42°F (6°C) | 3.2 in | |
| September | 47°F (8°C) | 3.0 in | |
| October | 52°F (11°C) | 3.1 in | |
| November | 57°F (14°C) | 3.0 in | |
| December | 62°F (16°C) | 2.8 in |
Portland has a seasonal temperature swing of 22°F / from 42°F in June to 64°F in February. Total annual precipitation is 34.5 inches, with January being the wettest month (4.0") and June the driest (2.2").