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Weather & Climate in Jamestown, Australia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Jamestown enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 71°F in January while summers reach 47°F in July / relatively mild seasonal variation. The area gets 301 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 19.3 inches (drier than the 38-inch national average). The city sits at an elevation of 1,496 feet.
Temperature
71°F Jan (22°C)
47°F Jul (8°C)
| Annual Average | 59.0°F |
| 9% above US avg | |
| January Average | 71°F (22°C) |
| July Average | 47°F (8°C) |
| Sunny Days | 301 days/yr |
Geography
| Elevation | 1,496 ft (456 m) |
| Area | 860.8 sq mi (2,229.5 km²) |
| Population Density | 2/sq mi |
| Coordinates | -33.2053°N, 138.6050°W |
| Timezone | Australia/Adelaide |
Precipitation & Snow
Air Quality
Earthquake History
46 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.9.
| Mar 22, 2023 | 60 km ENE of Peterborough, Australia | M4.9 | 90 km | 9 km |
| Jan 11, 2025 | 74 km ENE of Quorn, Australia | M4.9 | 131 km | 10 km |
| May 3, 1997 | 32 km WNW of Burra, Australia | M4.8 | 36 km | 33 km |
| Mar 5, 1997 | 5 km ESE of Burra, Australia | M4.8 | 64 km | 10 km |
| Oct 15, 2011 | 73 km E of Quorn, Australia | M4.6 | 104 km | 0 km |
| Jan 26, 2009 | 25 km NE of Peterborough, Australia | M4.6 | 60 km | 17 km |
| Apr 29, 2014 | 68 km ENE of Peterborough, Australia | M4.6 | 98 km | 13 km |
| Oct 10, 2010 | 105 km E of Peterborough, Australia | M4.5 | 131 km | 0 km |
| May 14, 2020 | 15 km WSW of Burra, Australia | M4.4 | 57 km | 7 km |
| Apr 17, 2024 | 8 km ENE of Jamestown, Australia | M4.3 | 8 km | 10 km |
| Feb 8, 2025 | 83 km NE of Quorn, Australia | M4.3 | 148 km | 14 km |
| Jul 30, 2010 | 21 km NNE of Quorn, Australia | M4.2 | 123 km | 10 km |
| Aug 18, 1999 | 24 km W of Peterborough, Australia | M4.2 | 30 km | 10 km |
| Nov 13, 1995 | 30 km E of Quorn, Australia | M4.2 | 101 km | 10 km |
| Aug 17, 1991 | 21 km NE of Kapunda, Australia | M4.1 | 119 km | 33 km |
| Sep 4, 2011 | 16 km SW of Peterborough, Australia | M4.1 | 17 km | 2 km |
| Mar 5, 1997 | 40 km NNE of Burra, Australia | M4.0 | 50 km | 10 km |
| Apr 24, 2017 | 29 km ENE of Quorn, Australia | M4.0 | 104 km | 24 km |
| Jan 22, 1999 | 36 km SSE of Burra, Australia | M3.8 | 96 km | 10 km |
| Dec 17, 1992 | 1 km SE of Peterborough, Australia | M3.5 | 34 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 71°F (22°C) | 0.9 in | |
| February | 72°F (22°C) | 0.9 in | Warmest |
| March | 67°F (20°C) | 0.8 in | Driest |
| April | 60°F (16°C) | 1.3 in | |
| May | 53°F (12°C) | 1.7 in | |
| June | 48°F (9°C) | 2.2 in | |
| July | 47°F (8°C) | 2.5 in | Coldest, Wettest |
| August | 48°F (9°C) | 2.3 in | |
| September | 52°F (11°C) | 2.3 in | |
| October | 57°F (14°C) | 2.2 in | |
| November | 63°F (17°C) | 1.4 in | |
| December | 68°F (20°C) | 1.0 in |
Jamestown has a seasonal temperature swing of 25°F / from 47°F in July to 72°F in February. Total annual precipitation is 19.3 inches, with July being the wettest month (2.5") and March the driest (0.8").