May weather forecast and climate
Bethlehem, PA

Average temperature in May - Bethlehem, PA
  • Average high temperature in May: 72°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in May: 48°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average rainfall in May - Bethlehem, PA
  • Average rainfall in May: 4.1"

The wettest month (with the highest rainfall) is July (5").
The driest month (with the lowest rainfall) is February (2.8").

Average daylight in May - Bethlehem, PA
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.3h).

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