By Rod Hill on 2015-12-09
What began Sunday overnight, ended this morning, (Wednesday), with a cold front passage around 3:30 a.m. Left behind are countless areas of flooding, mudslides, power outages and closures. Here is the record list of rainfall at PDX:
1. Monday Dec. 7th: 2.67" of rain. The most all-time at PDX for a calendar day in December.
2. Tuesday Dec. 8th: 1.66" of rain. A record for the day.
3. 24-Hour Period of Rainfall: 3.22" - the most all-time for December.
4. Total Event Rainfall: 4.75" PDX
___________________________________
Total December rainfall to date is 7.50 inches. The December average for the entire month is 5.49". The all-time record for December at PDX is 13.35" back in 1996. There is an old downtown location record of 20.14" dating back to 1882.
With more heavy rain to come, it is likely that Portland will see more than 10.00" of total rainfall this month. Portland has not see a month with 10.00" of rainfall since November of 2006 when 11.92" fell. In other words, getting dumped on by 10.00" of rain in one month has not happened in 9 years!
Rod Hill
Strong Winds, Heavy Rain Through Wednesday & Thursday