By Rod Hill on 2010-09-21
September has set or tied a total of six records to date at PDX:
Sept. 7, 1.55" daily rain record
Sept. 7, 1.03" between 8:00 & 9:00 pm. All-time Portland one-hour rain record
Sept. 9, High of 65 ties the daily record for low-high temperature
Sept. 16, Low of 61 record for high-low temperature
Sept. 17, Low of 62 record for high-low temperature
Sept. 18, .97" daily rain record
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Normal September rainfall at PDX is 1.65 inches. To date, the airport has received 3.18". The all-time September record at PDX is 4.30" back in 1986. Heavy rain possible next Monday and could push the rain total close to the monthly record. The all-time record for Portland, dating to 1871 is 5.52" back in 1927.
The rain outlook calls for above normal precipitation October, November and December.