Thornleigh is a city of approximately 8,400 people in New South Wales, Australia. Located in the Australian Eastern time zone at 33.7°S latitude.
In 2025, Thornleigh recorded an average annual temperature of 63°F. The hottest temperatures reached 105°F in January; the coolest were 37°F in July. Total precipitation for the year was 43 inches, with the wettest month being January.
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