Climate almanac

Olney

Maryland, US · 39.15°, -77.07°

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What is the climate like in Olney?

Olney is warmest in July, when daily highs average 88°F (31°C), and coolest in January, when lows fall to about 30°F (-1°C). The wettest month is typically July and the driest is November; the year sees roughly 48 in of precipitation.

  • Warmest monthJuly — average high 88°F (31°C)
  • Coolest monthJanuary — average low 30°F (-1°C)
  • Wettest monthJuly (6.3 in)
  • Driest monthNovember (2.9 in)
  • Annual precipitation48 in