Arvayheer, in OEvoerhangay, Mongolia, is home to roughly 29,400 people in the Asia/Ulaanbaatar time zone at 46.3°N latitude.
In 2025, Arvayheer recorded an average annual temperature of 35°F. The hottest temperatures reached 90°F in July; the coolest were -15°F in December. Total precipitation for the year was 12 inches, with the wettest month being July. Snowfall for the year totaled approximately 6 inches.
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