Weather history · Portland, US

Explore the daily humidity history for Portland.

Humidity in Portland from 1 Jul 2026 to 29 Aug 2026, based on completed daily observations.

Daily mean relative humidity 7869605041 1 Jul11 Jul21 Jul31 Jul9 Aug19 Aug29 Aug % 3 Jul 2026: 66.5 %4 Jul 2026: 64.9 %5 Jul 2026: 61 %6 Jul 2026: 54.9 %7 Jul 2026: 60.5 %8 Jul 2026: 63.5 %9 Jul 2026: 53.1 %10 Jul 2026: 58.4 %11 Jul 2026: 63.5 %12 Jul 2026: 57.3 %13 Jul 2026: 49.3 %14 Jul 2026: 48.9 %15 Jul 2026: 53.3 %16 Jul 2026: 71.1 %17 Jul 2026: 64.8 %18 Jul 2026: 65.2 %19 Jul 2026: 62.8 %20 Jul 2026: 60.5 %21 Jul 2026: 50.7 %22 Jul 2026: 56.5 %23 Jul 2026: 69.5 %24 Jul 2026: 66.8 %25 Jul 2026: 66.7 %26 Jul 2026: 65.3 %27 Jul 2026: 60.4 %28 Jul 2026: 63.4 %29 Jul 2026: 61.1 %30 Jul 2026: 57.9 %31 Jul 2026: 52.9 %1 Aug 2026: 64.5 %2 Aug 2026: 61.5 %3 Aug 2026: 55 %4 Aug 2026: 43.6 %5 Aug 2026: 47.3 %6 Aug 2026: 51.7 %7 Aug 2026: 55.9 %8 Aug 2026: 51.3 %9 Aug 2026: 56.5 %10 Aug 2026: 64.2 %11 Aug 2026: 64.5 %12 Aug 2026: 70.3 %13 Aug 2026: 70.7 %14 Aug 2026: 71.1 %15 Aug 2026: 75.5 %16 Aug 2026: 66.7 %17 Aug 2026: 68.3 %18 Aug 2026: 65.9 %19 Aug 2026: 63 %20 Aug 2026: 60 %21 Aug 2026: 69.9 %22 Aug 2026: 71.9 %23 Aug 2026: 66 %24 Aug 2026: 59 %25 Aug 2026: 59.3 %26 Aug 2026: 67.6 %27 Aug 2026: 62.5 %28 Aug 2026: 66.1 %29 Aug 2026: 62.6 %