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Weather & Climate in Grasmere, Australia
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grasmere enjoys a temperate climate with an average annual temperature of 60°F (16°C). Winters average 65°F in January while summers reach 55°F in July / relatively mild seasonal variation. The area gets 314 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 23.2 inches (drier than the 38-inch national average). The city sits at an elevation of 20 feet.
Temperature
65°F Jan (18°C)
55°F Jul (13°C)
| Annual Average | 60.4°F |
| 12% above US avg | |
| January Average | 65°F (18°C) |
| July Average | 55°F (13°C) |
| Sunny Days | 314 days/yr |
Geography
| Elevation | 20 ft (6 m) |
| Area | 2.6 sq mi (6.6 km²) |
| Population Density | 598/sq mi |
| Coordinates | -35.0181°N, 117.7556°W |
| Timezone | Australia/Perth |
Precipitation & Snow
Air Quality
Earthquake History
7 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.
| Aug 5, 2023 | 64 km E of Katanning, Australia | M5.2 | 147 km | 10 km |
| Jan 5, 2023 | Western Australia | M4.7 | 149 km | 11 km |
| Dec 13, 1991 | 46 km N of Mount Barker, Australia | M4.4 | 89 km | 10 km |
| Jan 22, 1999 | 20 km S of Kojonup, Australia | M4.3 | 126 km | 33 km |
| Aug 1, 2019 | 2 km ENE of Mount Barker, Australia | M4.2 | 44 km | 10 km |
| Apr 8, 2009 | 43 km SW of Kojonup, Australia | M4.1 | 126 km | 0 km |
| Oct 26, 1996 | 65 km ESE of Katanning, Australia | M3.7 | 128 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 65°F (18°C) | 1.1 in | |
| February | 67°F (19°C) | 1.0 in | Warmest |
| March | 65°F (19°C) | 1.3 in | |
| April | 62°F (17°C) | 2.5 in | |
| May | 58°F (14°C) | 4.6 in | |
| June | 54°F (12°C) | 4.9 in | |
| July | 55°F (13°C) | 5.8 in | Wettest |
| August | 53°F (12°C) | 5.1 in | Coldest |
| September | 55°F (13°C) | 3.8 in | |
| October | 57°F (14°C) | 3.2 in | |
| November | 60°F (16°C) | 2.1 in | |
| December | 63°F (17°C) | 0.9 in | Driest |
Grasmere has a seasonal temperature swing of 14°F / from 53°F in August to 67°F in February. Total annual precipitation is 36.4 inches, with July being the wettest month (5.8") and December the driest (0.9").