Houilles is a city of approximately 31,100 people in Ile-de-France, France. Located in the Central European time zone at 48.9°N latitude.
In 2025, Houilles recorded an average annual temperature of 55°F. The hottest temperatures reached 101°F in July; the coolest were 24°F in December. Total precipitation for the year was 28 inches, with the wettest month being January. Snowfall for the year totaled approximately 1 inches.
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