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The amount of snow received at weather stations varies substantially from year to year. For example, the annual snowfall at Paradise Ranger Station in Mount Rainier National Park has been as little as 266 inches (680 cm) in 2014-2015 and as much as 1,122 inches (2,850 cm) in 1971–1972. [2]
Glaciers remain year-round on some Cascade peaks higher than 7,000 feet (2,100 m) above sea level. [3] Annual snowfall along the coastal plain averages 1 to 3 inches (2.5 to 7.6 cm) a year, including years with none. Further inland, between the Coast Range and the Cascades, snowfall generally averages from 5 to 10 inches (13 to 25 cm) a year.
The 6.1 in (15 cm) of snowfall in Portland, Oregon on February 12 ties the airport monthly record of 6.1 in (15 cm) set Feb 19, 1993. [106] The event proved to be historic for the Portland metropolitan area in the month of February. Some areas in Oregon saw up to 1.5 in (38 mm) of ice accretion. [107]
These live maps from the FOX Forecast Center show the latest information on the historic winter storm expected to blanket the Gulf Coast and South with ice and record snow this week.
The snowstorm unloaded 10.8 inches of snow across the city on Wednesday, making Feb. 22 the second-snowiest day in Portland history, only behind the 14.4 inches that fell on Jan. 21, 1943.
Snowfall data is much less reliable before the 1970s, but starting the data in the 1970s also meant the analysis included some exceptionally snowy years for that part of the US.
Winter storms can produce both ice and snow, but are usually more notable in one of these two categories. The "Maximum accumulation" sections reflect the more notable category which is represented in inches of snow unless otherwise stated. Only category 1 and higher storms as defined by their regional snowfall index are included here.
A deadly winter storm that swept across much of the nation at the end of last week is now impacting the mid-Atlantic, where cities like Washington, Baltimore and Richmond, Virginia, brace for ...