Annual Washington rainfall, sevrere weather and climate data

Driest location ranked by lowest annual average precipitation: Priest Rapids Dam , central Washington, 6.84"

Wettest location ranked by highest annual average precipitation: Quinault Ranger Station, western Washington, 137.21"

Snowiest location ranked by highest annual average snowfall: Rainier Paradise Ranger Station, western Washington, 680.0"

State precipitation record for 24 hours - Mount Mitchell, southwestern Washington, 11/23-24/1986, 14.26"

State precipitation record for 1 year - Wynoochee Oxbow, western Washington, 1931, 184.56"

State snowfall record for 24 hours - Crystal Mountain, western Washington, 1/23-24/1994, 65.0"

State snow record for 1 season - Mount Baker, northern Washington, 1998-1999, 1140.0" (95 feet, U.S. record)

Quillayute, Washington and Astoria, Oregon are the cloudiest cities in the United States with 240 cloudy days per year

During July and August in western Washington, it is not unusual for two to four weeks to pass with only a few showers
but during the wettest months of December and January, precipitation is frequently recorded on 20 to 25 days or more
each month

Centralia, Washington holds the state record with 55 consecutive days with measurable precipitation

Washington temperature averages and extremes, Seattle climate extremes/averages, precipitation and temperature data for all U.S. states and Top 10 U.S. climate extremes
Data sources: National Climatic Data Center, Severe thunderstorm / tornado watch data period is 1999 - 2008, NOAA Storm Prediction Center, Tornado climate data - NOAA Storm Prediction Center, State lightning flash density average - 1997-2011, Vaisala

City	Avg Annual Precip	Avg Annual Snow	Avg # days of Precip	Avg # thunderstorm days	Avg # hail days	Avg # severe thunderstorm watches per year	Avg # tornado watches per year	# of tornadoes reported in county, 1960-2010
Olympia	50.79	16.7	162	4	1	0	0	4
Quillayute	101.72	13.1	209	7	1	0	0	0
Seattle	38.25	11.4	154	8	1	0	0	5
Spokane	16.67	48.0	154	11	1	0	1	9
Walla Walla	20.88	17.3	107	10	0	0	2	3
Yakima	8.26	24.4	69	6	0	0	1	7
Washington Annual Precipitation Average - 38.78", 29th wettest in the U.S. Washington Tornado Average - 1.2 per year - 43rd most in the U.S. Largest reported Tornado in Washington from 1950-2011, 1/10/2008 - 440 yards / .25 miles wide Date with highest number of reported Tornadoes in Washington from 1950-2011, June 6th - 6 tornadoes Average time of occurrence of reported Tornadoes in Washington from 1950-2011 - 2:38 pm Washington Annual Lightning Density - 1.5 flashes per square mile - 43rd highest in U.S. Record Driest year in Washington from 1895-2012 - 1929, avg precipitation 24.16 inches Record Wettest year in Washington from 1895-2012 - 1996, avg precipitation 49.20 inches