All-Time Rain Record Just Set

Breaking Weather News!  A shower sat almost directly over PDX between 8:10 & 9pm…1.03″ rainfall fell in just 1 hour.  That is the heaviest rain that has ever fallen in 1 hour at PDX!  But 1-2 miles away the rain was far lighter.  Talk about a freak event eh? 

The previous record was set just 2 years ago with thunderstorms on Memorial Day Weekend.  That was .93″ in one hour.

11pm Update:

Looks like we probably broke the record for 1/2 hour as well.  As Brian up in Clark County points out…it appears that .96″ fell between 8:21 & 8:53pm.  That would be .96″ in 32 minutes.  The all-time 30 minute record is .82″ in August, 1968.

The short-term rainfall records are here:  http://www.wrh.noaa.gov/pqr/pdxclimate/pg83.pdf

Chief Meteorologist Mark Nelsen

117 Responses to All-Time Rain Record Just Set

  1. W7ENK says:

    [Milwaukie] 9/8/2010
    68.5°F High ◄▬ +0.1°/KORMILWA5; KORMILWA3 is stuck at 60.4
    50.5°F Low
    WNW 10.5 mph at 2:35p
    Trace

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