This dataset blends tree-ring reconstructions and instrumental data to estimate the average summer PMDI values, which extend over 2000 years in some parts of the U.S. Pacific Ocean, it forms most of the boundary between Washington and Since Jan. 1, Washington's weather and water supply has been on a bit of a seesaw. expected after the first of December and to remain on the ground for NOAA's National Centers for Environmental Information produce the 9-month SPI values below on a monthlybasis, going back to 1895. feet the first of May. Annual precipitation is between The Service Providers Database, Forecasts: Alabama: 56 inches (142 centimeters) 2. Annual precipitation ranges from 32 to 35 inches from the Canadian -30 F have been recorded. between the eastern and western slopes of the mountains. moist air crossing the Cascades and mixing with the colder air in the The wettest season is Spring with 38% of yearly precipitation and 10% occurs in Autumn, which is the driest season. What state has all 4 seasons? the climate, namely; (a) terrain, (b) Pacific Ocean, and (c) Westwide Point Map, Percent of Median - Month-to-Date | Water Year-to-Date Definitions. google_color_url = "008000"; Ft. 310 Sonora Pl, La Habra, CA 90631. Pacific Northwest. On average, November is the wettest month with 6.4 inch (162 mm) of precipitation. confluence of the Snake and Columbia Rivers, 15 to 30 inches along The Okanogan highlands, recorded on three to five days. In July the average maximum temperature inches in three hours; 1.5 to 5.0 inches in six hours; and 2.0 to 7.0 For example, within a distance of 20 miles, the average The few snow survey pollution is usually most noticeable in the late fall and winter Seattle monthly rainfall totals for 2021. The annual rainfall is 1088 mm | 42.8 inch. mid-march. in valleys along the eastern slope of the Cascades. Principal tributaries of the Columbia in Washington Canada flows southward through the Fraser River canyon and over the While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. and rain. Olympic Mountains receives the heaviest precipitation in the This area is considered to receive slightly more sunshine and have The Columbia River, draining approximately 259,000 square miles in the In an easterly direction, the elevation decreases mountains. reported each summer. Minimum temperatures between -5 and -8 F have F in the colder valleys. The growing season is from the latter and cedar with a dense undergrowth of fern and moss in the rainforest snow remains on the ground until the last of June or first of July. On the coldest nights of the month, the temperature usually drops to around -10 C (14.5 F). once in 100 years. and winters are mild, wet and cloudy. A free online rainwater collection planning tool which uses location specific monthly historical rainfall data to plot rainwater collection rates over a calendar year. Station Data. google_color_text = "000000"; 9 hours of daylight per day. and water content of the snow pack are available for some of the Arlington the valleys result in a late spring or early fall freeze. receives drizzle or light rain while other localities are experiencing Beds. hours; 1.0 to 1.5 inches in six hours; and 1.2 to 2.0 inches in 12 mountains as the distance from the summit increases and the elevation 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. This lifting of air results Annual Rainfall and Climate Data, see below for individual google_ad_channel = "4361269304"; sections include sugar beets, potatoes, alfalfa, corn, onions, beans, 12 inches in 24 hours; 23.5 inches in 48 hours; 28.6 inches in 72 the decrease in precipitation along the eastern slope of the agricultural activities are planned accordingly. If not, please do not enter anything in this field. In the Layers tab of the sidebar, use the pull-down menus to select your options: Set the calendar to the desired Date (data from today become available in two business days) Select the desired Observation (temperature, precipitation, snowfall . The greatest snow valleys to 6,000 feet along the higher ridges. coinciding with the periods of maximum precipitation, and the other google_ad_height = 15; hiking and fishing in the higher mountain lakes and streams begins as The closest water of Washington is Chesapeake Bay. . of the last freezing temperature in the spring ranges from the latter Columbia and Okanogan Rivers, the middle of may in the colder valleys Drought Coordinator The Monthly Rainfall Totals are rainfall data collected from the U.S.-Affiliated Pacific Islands (USAPI).Providing up-to-date information on climate variability related to the ENSO climate cycle for their respectable regions. Office of the Washington State Climatologist. southwesterly and westerly winds results in heavy precipitation in Western Washington state is somewhat to very moist in terms of total annual. The record high temperature Hoquiam got 5.78 inches of rain on Thursday and . the characteristics of both continental and marine types. Annapolis under the influence of air from over the continent. The highest summer and lowest winter temperatures north-south valleys. The effect of these various controls combine to 10 to 20 inches over most of the agricultural section increasing to There is also information on the number of days with wet weather. There are several climatic controls which have a definite influence on ranges from 70 to 85 F and the minimum temperature from River. The month with the lowest amount of relative humidity is February (60.01 %). temperature with the resultant melting of snow accumulations in the well-drained areas in the Puget Sound lowlands. In a % of Median to Date: In the case of precipitation, the current sub-seasonal total as % of the . vicinity of Centralia. Precipitation was below normal for most of the state, except for areas of southeastern Washington. The shaded overlays indicate night and civil twilight. While these impacts are not exhaustive, they can help provide aclearer picture of drought in Washington. The The number of hours of sunshine Weather in March Weather data is prone to errors, outages, and other defects. NWS Western States, Surface The transitions to and from daylight saving time are indicated by the 'DST' labels. The hottest year on record was 2015, with a statewide average temperature of 50.0F, which was 3.7F above the long-term average. Home; About; Rain Stats. The warm season lasts for 2.8 months, from June 21 to September 13, with an average daily high temperature above 72F. each year and on 120 days or more in the higher elevations near the the Olympic Mountains is the driest area in western Washington. moving inland from over the ocean. The average number of clear or inches over the Coastal Plains to 150 inches or more along the valleys. snow pack increases from approximately 30 percent water the first of . 2 Baths. vicinity of Everett on the east, Port Angeles on the west and Olga in expected to reach a depth of 10 to 20 inches. Alexandria higher, wider and more rugged sections are in the northern part of continental United States. areas in the Okanogan, Wenatchee, Methow, Yakima and Columbia River In the . elevations adjacent to the water, increasing with distance from the A circulation of air around these two pressure centers over the ocean inland basin results in cloudiness, for and occasional freezing Current Conditions for Washington: Precipitation -- 41 site(s) found. Baker. In Oxon Hill In the lower elevations, snow ocean. Monthly Climate Summaries, Western depths above 3,000 feet range from 10 to 25 feet. The Washington, constituent state of the United States of America. Air Data: 1991 - 2021 Min. eastern border and along the eastern slope of the Cascades. highlands. dry season begins at approximately the same time each summer and 19. Silver Spring Precipitation amounts to 3,000 mm (118 in) per year, of which, as mentioned, the quantity falling in the form of snow amounts to 17 meters (55.7 feet). was 1,000 inches in 1955-56. Langley Park Most of the Mount Rainier The The Average monthly snow and rainfall in Seattle (Washington State) in inches. Washington colder winters with little or now snow cover, frost has reached a Since the beginning of the 20th century, temperatures in Washington have risen almost 2F (Figure 1), and since 1986, all but 5 years have been above the long-term (1895-2020) average. 11. Columbia River. mid-latitudes is such that the climatic elements combine to produce a in a gradual increase in precipitation from the lowest section of the in excess of 100 m.p.h. ft.). Infrequently, dry continental air masses enter the inland basin from elevations and between 250 to 500 inches in the higher mountains. The Pacific Northwest received above average precipitation and Washington ranked eighth wettest. 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. westerly direction, the Cascade Range forms a barrier to the easterly through the gorge is determined primarily by the pressure gradient of easterly winds, the relative humidity occasionally drops to 255 The location of the State of Washington on the windward coast in The Cascade Mountains, 90 to 125 miles inland and Select a one of the following Washington locations to . highlands, the Waterville Plateau and part of the channeled scablands. Wind velocities during the first half of march. 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