The coldest it has ever been at the Portland Airport in the 80 years of records was 33° F. Friday night we got down to 33° F, and even lower at the Troutdale Airport. Radiative cooling under clear skies left a white frosty landscape by morning.

Atmospheric carbon dioxide did not save us.

And the record cold did not stop there. Here is the Weather Service Record Event report for our area:

686
SXUS76 KPQR 111629
RERPQR

RECORD EVENT REPORT
NATIONAL WEATHER SERVICE PORTLAND OREGON
900 AM PDT SUN APR 11 2021

...RECORD LOW TEMPERATURES SUNDAY APR 11TH 2021...

LOCATIONS	LOW	OLD RECORD (YEAR)
ASTORIA	30°	31° (1991)
EUGENE	30°	31° (1991)
HILLSBORO	26°	30° (1947)
PORTLAND AIRPORT	32°	33° (1991)
SALEM	29° TIED	29° (1991)
TROUTDALE	29°	31° (1965)
VANCOUVER	28° TIED	28° (1980)

And for good measure, here are the record lows set on Friday morning:

Record Report


RECORD EVENT REPORT
NATIONAL WEATHER SERVICE
632 PM PST FRI APR 9 2021

...RECORD LOW TEMPERATURES IN NORTHWEST OREGON THIS MORNING...

LOCATION	LOW TEMP	APRIL 9 RECORD
ASTORIA	30°	32°/1982
TROUTDALE	31°	32°/1975

--Staff Reports with Dr. Gordon Fulks

Post Date: 2021-04-12 10:44:11

Last Update: 2021-04-12 12:07:02