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Why Boulder’s official weather station has moved so much over the last 130 years—and why it matters today

January 6, 2026 / BoulderCAST Team

Boulder’s “official” climate record has never lived in one place for long. Over the past 130 years, the instruments that track our temperature, precipitation, and snowfall have been relocated again and again—sometimes only a few blocks, other times miles away into landscapes with completely different quirks and microclimates. Each move left its own imprint on the long‑term dataset we use today, subtly shaping how we compare modern conditions with the Boulder of decades past.

Premium BoulderCAST Daily – Tue 01/06/26 | Critical Fire Conditions Today

January 6, 2026 / Andy

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This Week in Colorado Weather: January 5, 2025

January 5, 2026 / Andy

Warm, gusty weather is kicking off the first full week of 2026, but the atmosphere has a few twists lined up as we move toward the weekend. A stubborn ridge will keep us mild early on as downslope winds ramp up fire concerns. However, a developing trough later in the week will turn us much colder — with even the possibility of snow for Boulder and Denver if the storm track cooperates. The details are still evolving, but there’s plenty to watch in the days ahead.