Climate & Weather in Newcastle
Newcastle has a real, genuine mid-latitude steppe (Köppen BSk) climate, shaped directly by its edge-of-the-Black-Hills setting in northeast Wyoming.
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Learn moreLong, cold, snowy winters
Newcastle's winters run long, freezing, snowy, and windy -- December lows run approximately 18°F (highs ~36°F), with average annual snowfall of approximately 40 inches, concentrated in January, February, and March.
Short, warm summers
Summers run short, warm, and mostly clear -- July highs run approximately 83°F (lows ~58°F).
A substantial cold-weather stretch
Temperatures fall below 50°F for approximately 220 days per year in Newcastle -- a real, genuinely long cold-weather stretch.
Key takeaways
- Newcastle's winters run long, cold, and genuinely snowy -- ~40 inches average annual snowfall.
- Summers run short and warm, with July highs around 83°F.
- Temperatures stay below 50°F for roughly 220 days per year.
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