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  • BoulderCAST Daily – Tue 11/04/25 | Soaring into the 70s today, but a tad cooler tomorrow behind another dry cold front

    BoulderCAST Daily – Tue 11/04/25 | Soaring into the 70s today, but a tad cooler tomorrow behind another dry cold front

    6 hours ago
    🌡️ Morning temperature split:  Thanks to weak downslope winds, some areas are waking …
  • This Week in Colorado Weather: November 3, 2025

    This Week in Colorado Weather: November 3, 2025

    1 day ago
    Sunday’s record-breaking November heat will give way to a dramatic cooldown on Monday, …
  • BoulderCAST Daily – Sun 11/02/25 | Highs reach the 70s on this Sunday

    BoulderCAST Daily – Sun 11/02/25 | Highs reach the 70s on this Sunday

    2 days ago
    🌞 Sunny and great to end the weekend: Middle 70s engulf the Front …

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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 Week in Colorado Weather: November 3, 2025
    This Week in Colorado Weather: November 3, 2025
  • BoulderCAST Daily – Tue 11/04/25 | Soaring into the 70s today, but a tad cooler tomorrow behind another dry cold front
    BoulderCAST Daily – Tue 11/04/25 | Soaring into the 70s today, but a tad cooler tomorrow behind another dry cold front
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    November begins warm and dry; Boulder may challenge its latest first snowfall record
  • The 2013 Boulder Flood: Ten years and three billion dollars later
    The 2013 Boulder Flood: Ten years and three billion dollars later

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