Heavy Rain in Oregon

Events

325

Deaths

3

Injuries

2

Damage

$9.6 million

• Flooding and Heavy Rain in Oregon, December 1 to 6, 20072 deaths · $76 million · 49 eventsTwo very powerful storms with origins in the Tropics brought hazardous weather to the Pacific Northwest. The entire forecast area experienced heavy rainfall for an extended period of time.
• Debris Flows and Flooding in Oregon, January 1 to 5, 20091 death · 5 injured · $1.3 million · 26 eventsHeavy rainfall drenched the region to begin the new year. The heavy rainfall combined with snowmelt runoff caused flooding along multiple rivers in northwest Oregon.
• Debris Flow and Flooding in Oregon, December 3 to 4, 20232 deaths · 4 eventsA pair of moderate atmospheric rivers brought heavy rain leading to minor river and urban flooding to portions of northwest Oregon.
• Flooding and Heavy Rain in Oregon, December 17 to 19, 20151 death · 1 injured · $2.9 million · 8 eventsAn atmospheric rain event resulted in river flooding, urban flooding, land slides and sink holes across Northwest Oregon causing catastrophic damage.
• Tornadoes and Hail in Oregon, October 14, 2016$1.0 million · EF2 · 8 eventsBehind the front that moved through on October 13, unstable airmass generated strong convective showers and thunderstorms. A few of these thunderstorms produced tornadoes, strong winds, hail, and heavy rain.
• Heavy Rain in Oregon, January 18, 20191 death · 1 eventA moderately strong atmospheric river brought heavy rain to the area Friday, January 19. Heavy rain fell during the afternoon through Friday night.
• Flooding and Heavy Rain in Oregon, December 7 to 8, 2015$7.9 million · 13 eventsA moist pacific front produced heavy rainfall across Northwest Oregon which resulted in river flooding, urban flooding, small stream flooding, land slides, and a few sink holes.
• Heavy Rain in Oregon, June 1 to 10, 2010$3.5 million · 1 eventPersistent rainfall damaged the ripening cherry crop in northeast Umatilla County between June 1 and 10.
• Flooding and Heavy Rain in Oregon, December 8 to 10, 2015$1.8 million · 4 eventsA moist front produced heavy rain across Northwest Oregon on December 8th through December 9th resulting in river flooding, urban flooding, and sink holes. This rain occurred around 24 hours after another moist front that resulted in flooding across the area.
• Flash Flooding and Debris Flow in Oregon, July 16 to 20, 2012$232,000 · 2 in hail · 29 eventsA nearly stationary upper level low pressure area parked near Brookings, Oregon brought abundant moisture across eastern Oregon. This combined with daytime heating to produce a few severe thunderstorms and locally heavy rainfall.
• Heavy Rain in Oregon, October 31, 2015$200,000 · 2 eventsA slow moving cold front associated with an atmospheric river of subtropical moisture produced heavy rain across Northwest Oregon that resulted in urban flooding for the Portland metro area.
• Flash Flooding and Hail in Oregon, April 23, 2012$100,000 · 1 in hail · 13 eventsAn upper level disturbance moving north on the back side of an upper level ridge combined with a very moist atmosphere to produce local severe thunderstorms and flooding.
• Heavy Rain in Oregon, June 25, 2014$140,000 · 1 eventA shortwave trough combined with favorable upper level dynamics, mid-level instability and plenty of sub tropical moisture resulted in convective showers over the Portland metro area. Heavy rain from these showers resulted in significant flooding for the Beaverton/Hillsdale.
• Flood and Hail in Oregon, September 17 to 18, 2020$41,000 · 50 kt wind · 22 eventsAn eastward-moving upper level trough and associated area of surface low pressure moved across northwest Oregon and southwest Washington September 17-18, resulting in fairly widespread showers and thunderstorms beginning late in the afternoon of the 17th through most of the day…
• Hail and Damaging Winds in Oregon, July 8, 2012$51,000 · 1.5 in hail · 13 eventsAn upper level disturbance moved north across the area during the afternoon and evening. Triple digit temperatures provided ample heating for thunderstorms with gusty damaging winds and locally large hail.
• Heavy Rain in Oregon, November 20 to 21, 2024$75,000 · 1 eventHeavy rain resulted in damage to Highway 6 around 15 minutes west of Banks in Washington County.
• Heavy Rain in Oregon, June 10 to 11, 2022$50,000 · 2 eventsAn atmospheric river brought heavy rain to the area.
• Flood and Heavy Rain in Oregon, September 28 to 30, 2013$30,000 · 2 eventsHeavy rain resulted in flooding of the the Wilson River near Tillamook as well as urban flooding in the Portland metro area.
• Heavy Rain in Oregon, October 14, 2016$30,000 · 1 eventWarm front moving north across the area brought heavy rain to the Willamette Valley. Rainfall totals of 1 to 1.5 inches were recorded in the North Willamette Valley causing urban flooding in the Portland Metro area.
• Flooding and Heavy Rain in Oregon, January 2 to 6, 200716 eventsA strong warm Pacific frontal system brought widespread steady rain to the forecast area over a period of 36 hours.
• Heavy Rain in Oregon, March 13, 2016$20,000 · 1 eventHeavy rain from a convective shower resulted in a large landslide that closed Oregon State Route 36 around 2 miles west of Triangle Lake for several days.
• Flooding and Heavy Rain in Oregon, November 24 to 27, 2016$13,000 · 9 eventsA moist Pacific front moving slowly across the area produced heavy rainfall, resulting in flooding of several rivers across Northwest Oregon and at least two landslides.
• Heavy Rain in Oregon, August 22 to 23, 200114 eventsAn unseasonably wet weather system brought heavy rain to Northwest Oregon. Storm totals from the Coast Range were in the 2 to 4 inch range, while along the coast totals were in the 1 to 3 inch range. In the Cascades, storm totals ranged from 0.75 inches to 2 inches.
• Heavy Rain in Oregon, December 12 to 14, 200314 eventsA strong very moist Pacific system moved into the area producing heavy rains. During a 54-hour period, Detroit Dam measured 5.40 inches of rain, Mapleton 5.20 inches, Three Lynx Creek 3.90, Cottage Grove 3.60, Scotts Mills 3.50, Bonneville Dam 3.20 , Rainbow 3.20, Florence 3.37…
• Heavy Rain in Oregon, January 29 to 31, 200314 eventsHeavy rains associated with a strong Pacific weather system brought 2 days of heavy rains to the area. Lees Camp received 9.49 inches of rain, Jewell 6.75 inches, Falls City 6.71 inches, Mapleton 6.51 inches, and Carlton 6.26 inches.

Heavy Rain everywhereEvery kind of event in Oregon

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.