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Weather & Climate in Wilmington, Australia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Wilmington enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 72°F in January while summers reach 46°F in July / relatively mild seasonal variation. The area gets 339 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 14.1 inches (drier than the 38-inch national average). The city sits at an elevation of 1,079 feet.
Temperature
72°F Jan (22°C)
46°F Jul (8°C)
| Annual Average | 58.7°F |
| 9% above US avg | |
| January Average | 72°F (22°C) |
| July Average | 46°F (8°C) |
| Sunny Days | 339 days/yr |
Geography
| Elevation | 1,079 ft (329 m) |
| Area | 506.1 sq mi (1,310.7 km²) |
| Population Density | 1/sq mi |
| Coordinates | -32.6499°N, 138.0981°W |
| Timezone | Australia/Adelaide |
Precipitation & Snow
Air Quality
Earthquake History
45 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Jan 11, 2025 | 74 km ENE of Quorn, Australia | M4.9 | 91 km | 10 km |
| Mar 22, 2023 | 60 km ENE of Peterborough, Australia | M4.9 | 131 km | 9 km |
| May 3, 1997 | 32 km WNW of Burra, Australia | M4.8 | 109 km | 33 km |
| Mar 5, 1997 | 5 km ESE of Burra, Australia | M4.8 | 141 km | 10 km |
| Jan 26, 2009 | 25 km NE of Peterborough, Australia | M4.6 | 87 km | 17 km |
| Apr 29, 2014 | 68 km ENE of Peterborough, Australia | M4.6 | 136 km | 13 km |
| Oct 15, 2011 | 73 km E of Quorn, Australia | M4.6 | 79 km | 0 km |
| May 14, 2020 | 15 km WSW of Burra, Australia | M4.4 | 132 km | 7 km |
| Feb 8, 2025 | 83 km NE of Quorn, Australia | M4.3 | 105 km | 14 km |
| Apr 17, 2024 | 8 km ENE of Jamestown, Australia | M4.3 | 81 km | 10 km |
| Jul 30, 2010 | 21 km NNE of Quorn, Australia | M4.2 | 53 km | 10 km |
| Aug 18, 1999 | 24 km W of Peterborough, Australia | M4.2 | 55 km | 10 km |
| Nov 13, 1995 | 30 km E of Quorn, Australia | M4.2 | 44 km | 10 km |
| Sep 4, 2011 | 16 km SW of Peterborough, Australia | M4.1 | 75 km | 2 km |
| Jun 14, 2001 | 56 km N of Quorn, Australia | M4.1 | 90 km | 10 km |
| Apr 24, 2017 | 29 km ENE of Quorn, Australia | M4.0 | 46 km | 24 km |
| Mar 5, 1997 | 40 km NNE of Burra, Australia | M4.0 | 123 km | 10 km |
| Oct 3, 2002 | 65 km NNE of Quorn, Australia | M3.8 | 94 km | 10 km |
| Nov 29, 1991 | 75 km N of Quorn, Australia | M3.7 | 109 km | 10 km |
| Feb 26, 1998 | 50 km NNW of Cowell, Australia | M3.6 | 142 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 72°F (22°C) | 1.0 in | |
| February | 75°F (24°C) | 0.9 in | Warmest |
| March | 70°F (21°C) | 0.8 in | Driest |
| April | 63°F (17°C) | 0.9 in | |
| May | 56°F (13°C) | 1.4 in | |
| June | 50°F (10°C) | 1.6 in | |
| July | 46°F (8°C) | 1.9 in | Coldest, Wettest |
| August | 51°F (10°C) | 1.8 in | |
| September | 55°F (13°C) | 1.7 in | |
| October | 61°F (16°C) | 1.7 in | |
| November | 67°F (19°C) | 1.1 in | |
| December | 72°F (22°C) | 1.0 in |
Wilmington has a seasonal temperature swing of 29°F / from 46°F in July to 75°F in February. Total annual precipitation is 15.8 inches, with July being the wettest month (1.9") and March the driest (0.8").