Portland, Oregon, United States Historical Air Quality Analysis

20°C12/30°C

22°C15/32°C

18°C13/25°C

18°C11/27°C

23°C14/34°C

25°C16/36°C

24°C16/34°C

18°C14/25°C

16°C12/22°C

14°C12/16°C

15°C13/20°C

15°C11/18°C

15°C13/18°C

15°C10/20°C

17°C10/25°C

20°C14/27°C

18°C14/27°C

20°C12/28°C

22°C13/32°C

20°C14/29°C

19°C15/28°C

19°C12/29°C

20°C13/28°C

19°C15/27°C

18°C12/25°C

21°C12/30°C

23°C14/33°C

23°C16/32°C

18°C15/23°C

18°C13/25°C