Newcastle, Texas — City Overview

Living in Newcastle, summers are intense — Aug highs average 99.3°F, while winters are chilly, with Feb lows around 34.8°F. With 1984 heating degree days annually, heating costs are moderate. With 25.5 inches annually, the climate is relatively dry. Median household income: $55,625. With a 12.8% poverty rate and 70.1% homeownership, the community reflects a stable residential mix. Air quality is Good — avg AQI 44 over the past week.

View Newcastle city guide

Updated August 10, 2026.

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