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Weather & Climate in Merriwa, Australia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Merriwa enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 75°F in January while summers reach 49°F in July / relatively mild seasonal variation. The area gets 287 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 27.2 inches (drier than the 38-inch national average). The city sits at an elevation of 830 feet.
Temperature
75°F Jan (24°C)
49°F Jul (9°C)
| Annual Average | 62.0°F |
| 15% above US avg | |
| January Average | 75°F (24°C) |
| July Average | 49°F (9°C) |
| Sunny Days | 287 days/yr |
Geography
| Elevation | 830 ft (253 m) |
| Area | 4,064.8 sq mi (10,527.9 km²) |
| Population Density | 0/sq mi |
| Coordinates | -32.1392°N, 150.3556°W |
| Timezone | Australia/Sydney |
Precipitation & Snow
Air Quality
Earthquake History
12 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 | 122 km | 10 km |
| Apr 22, 2025 | 18 km SW of Singleton, Australia | M5.1 | 91 km | 10 km |
| Aug 23, 2024 | 7 km ENE of Denman, Australia | M4.8 | 45 km | 10 km |
| Aug 24, 2024 | 8 km NE of Denman, Australia | M4.5 | 43 km | 11 km |
| Sep 6, 2024 | New South Wales, Australia | M4.4 | 40 km | 9 km |
| May 2, 2020 | 11 km ENE of Denman, Australia | M4.0 | 49 km | 16 km |
| Sep 13, 1990 | New South Wales, Australia | M3.5 | 118 km | 10 km |
| Mar 1, 2025 | 12 km N of Denman, Australia | M3.3 | 34 km | 10 km |
| Feb 23, 1990 | 49 km S of Denman, Australia | M3.0 | 84 km | 10 km |
| Jul 2, 2006 | 9 km SSW of Muswellbrook, Australia | M2.8 | 53 km | 12 km |
| Jan 14, 2025 | 13 km ESE of Denman, Australia | M2.7 | 54 km | 10 km |
| Aug 26, 2024 | 12 km SSW of Muswellbrook, Australia | M2.7 | 53 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 75°F (24°C) | 4.1 in | Warmest, Wettest |
| February | 73°F (23°C) | 2.7 in | |
| March | 69°F (21°C) | 2.3 in | |
| April | 62°F (17°C) | 1.7 in | |
| May | 56°F (13°C) | 2.1 in | |
| June | 50°F (10°C) | 1.6 in | |
| July | 49°F (9°C) | 1.7 in | Coldest |
| August | 51°F (11°C) | 1.5 in | Driest |
| September | 56°F (14°C) | 1.8 in | |
| October | 63°F (17°C) | 2.4 in | |
| November | 68°F (20°C) | 2.6 in | |
| December | 73°F (23°C) | 2.8 in |
Merriwa has a seasonal temperature swing of 26°F / from 49°F in July to 75°F in January. Total annual precipitation is 27.2 inches, with January being the wettest month (4.1") and August the driest (1.5").