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      • Daily Temperature Records & Normals
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      • GFS & NAM
    • Ensembles
      • 15-day Precipitation
      • 10-day Temperature
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  • Featured
    • 2013 Flood
    • Freezing Drizzle Explained
    • 2017 Solar Eclipse
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  • This Weekend in Colorado Weather: Autumn on Hold as Warm, Dry Pattern Dominates Early October

    This Weekend in Colorado Weather: Autumn on Hold as Warm, Dry Pattern Dominates Early October

    3 hours ago
    🌧️ Southern Colorado drenched, Front Range bone‑dry: The upper‑low parked in SE Colorado …
  • BoulderCAST Daily – Sun 09/27/26 | A Mild Sunday, Followed by Wet Weather This Week

    BoulderCAST Daily – Sun 09/27/26 | A Mild Sunday, Followed by Wet Weather This Week

    4 days ago
    ☀️ Mild Sunday — Highs well into the lower 80s with a few …
  • BoulderCAST Daily – Sat 09/26/26 | Quiet Weather, But Wet Weather Is Brewing Next Week Tied To A Tropical System

    BoulderCAST Daily – Sat 09/26/26 | Quiet Weather, But Wet Weather Is Brewing Next Week Tied To A Tropical System

    5 days ago
    ☀️ Weekend calm — Weather is quiet this weekend in the lower 80s …

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Did You Know?

The largest hailstone in terms of diameter and weight ever recorded in the United States fell on July 23, 2010 in Vivian, South Dakota. It measured 7.9 inches in diameter and 18.62 inches in circumference, weighing in at 1.94 pounds.

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  • This Weekend in Colorado Weather: Autumn on Hold as Warm, Dry Pattern Dominates Early October
    This Weekend in Colorado Weather: Autumn on Hold as Warm, Dry Pattern Dominates Early October
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