Historical weather data, all-time temperature records, and monthly climate averages for Highlands Ranch, CO. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5 in Highlands Ranch swings wide — the date's all-time range stretches from a balmy 82° back in 1943 to a brutal 3° low as recently as 2023. Historically, expect a cool spring day around 61°/31°, with about a 1-in-9 chance you'll wake up to snow.
Highlands Ranch has seen genuine extremes over its 108-year record, from a scorching 105° in June 1994 to a bone-snapping -32° in January 1930. And one storm in March 2003 did double duty — dropping both 5.08 inches of rain and 28 inches of snow on the same day.
Summer peaks in early July with average highs of 88°, while January sits at the cool end around 45°. If you're rain-averse, late April is historically the wettest stretch of the year, averaging 0.68 inches in a single week — plan accordingly.