Climate almanac

Allentown

Pennsylvania, US · 40.61°, -75.49°

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What is the climate like in Allentown?

Allentown is warmest in July, when daily highs average 87°F (31°C), and coolest in January, when lows fall to about 27°F (-3°C). The wettest month is typically July and the driest is November; the year sees roughly 48 in of precipitation.

  • Warmest monthJuly — average high 87°F (31°C)
  • Coolest monthJanuary — average low 27°F (-3°C)
  • Wettest monthJuly (5.0 in)
  • Driest monthNovember (3.2 in)
  • Annual precipitation48 in