Climate almanac

Altadena

California, US · 34.19°, -118.13°

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What is the climate like in Altadena?

The best time to visit Altadena is typically April – November, with trip comfort peaking in July (9.4/10). Altadena is warmest in August, when daily highs average 90°F (32°C), and coolest in January, when lows fall to about 45°F (7°C). The wettest month is typically January and the driest is July; the year sees roughly 17 in of precipitation.

  • Best time to visitApril – November — comfort peaks in July (9.4/10)
  • Warmest monthAugust — average high 90°F (32°C)
  • Coolest monthJanuary — average low 45°F (7°C)
  • Wettest monthJanuary (3.5 in)
  • Driest monthJuly (0.0 in)
  • Annual precipitation17 in