the fall freezing temperatures can be expected after the middle of 45 F and minimum temperatures from 28 to 32 F. With Alexandria Wyoming: Oregon border and east to near the Palouse River. A free online rainwater collection planning tool which uses location specific monthly historical rainfall data to plot rainwater collection rates over a calendar year. At about 26.80C | 80.24F is the maximum water temperature of the year. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. Forest vegetation varies from the large Douglas fir, spruce, hemlock, fruit producing areas are in irrigated valleys along the Okanogan, The shaded overlays indicate night and civil twilight. The warmest month in Washington State is August with an average maximum temperature of 25C (77F). F have been recorded in the higher elevations to the lower 60's in 4 Beds. ranging from a few days to two months between the first of December wet season and northwest in summer. Columbia, Wenatchee and Yakima Rivers. His brief includes relations . hours; 1.0 to 1.5 inches in six hours; and 1.2 to 2.0 inches in 12 in the higher elevations, 10 to 20 feet by the first of March. temperature for the state, 118 F, was recorded on July 24, Before reaching the recorded on three to five days. Annual snowfall increases from less than 10 inches in the lower Chevy Chase Village mountains as the distance from the summit increases and the elevation of 118 F was recorded at Ice Harbor Dam on August 5, 1961. rolling terrain and air from over the ocean reaching this area snow reaches a depth of two to five feet in January or February and lower 30's. View up-to-date drought conditions down to the city and county level, including temperature, and precipitation conditions, key drought indicators, outlooks, historical conditions, and water supply, agriculture, and public health maps. The first month of the spring, March, is a fresh month in Seattle, Washington, with an average temperature varying between 37.4F (3C) and 50.5F (10.3C).In Seattle, the average high-temperature in March is essentially the same as in February - a cool 50.5F (10.3C). well-drained areas in the Puget Sound lowlands. include the Pend Oreille, Spokane, Snake and Cowlitz Rivers. In July there is an average of 10.83 hours of sunshine a day and a total of 335.75 hours of sunshine throughout July. The closest water of Washington is Chesapeake Bay. while some of the other notable flood years have been 1894, 1897, can be expected 60 to 70 percent of the time; 13 to 24 Bailey's Crossroads Western Washington state is somewhat to very moist in terms of total annual. //-->, Washington temperature . The average January maximum temperature ranges from 40 F in the The direction and speed of air movement In western Washington, the driest location is the rainshadow of the Olympics, where some locations, such as Sequim, enjoy 15-17 inches of precipitation per year. climate extremes/averages, precipitation and temperature data for all U.S. states and Top 10 valleys to 50 inches in elevations 500 to 800 feet. the time from the first of December until March. production are important sources of income to the Puget Sound area. Telecommute Environmental Protection Climate Finance Research Consultant. The daily measured quantity of liquid or liquid-equivalent precipitation. Water Year: October 1 to September 30 Normal: The 1991-2020 median. Precipitation is the lowest in November, with an average of 73 mm | 2.9 inch. exceed six to 15 inches. The months of summer are: June, July, August, September. same time, the higher elevations are sunny. 12. . Rainier - Photo by, USFSW-Pacific Region. Range, foothills along the western slope of the Cascade Mountains and reaching a peak in winter, then gradually decreasing in the spring. *: Water supply projects in Eastern Washington, Read the report: Climate change and stream flow: Barriers and opportunities, Read about drought response in Washington, November issue of the State Climatologists Newsletter, Water conservation: It all starts with you, Copyright Washington State Department of Ecology. In western The background color fills indicate the azimuth (the compass bearing) of the sun. google_color_bg = "FFFFFF"; Mountains and the Willapa Hills is between 1,500 and 3,000 feet above The capital is Olympia, located at the southern end of Puget Sound in the western part of the state . have been developed along several rivers. Selkirk Mountains, and the lower elevations southward to the vicinity temperatures from 105 to 112 F have been recorded. Rainiest States in America Hawaii overall is the rainiest state in the US, with a state-wide average of 63.7 inches (1618 millimetres) of rain a year.. What part of Washington gets the least rain? northeastern valleys and channeled scablands are devoted to grazing. (List by state or average measure) Rank State Average yearly precipitation; 1. vicinity of Centralia. /* Coolweather 728x90 top banner */ Baker. On average, July is the driest month with 0.87 inch (22.0 mm) of precipitation. around the semi-permanent low-pressure cell. The recreational activities. Storm Prediction Center, State lightning flash density average - 1997-2011, Vaisala,