Published: April 14, 2020
Snow cover percent, March
Snow cover days, March

April 14, 2020

  • Snow-covered area continued to decline in March 2020 from its peak in February.
  • Both snow-covered area and snow cover days for March were just below average.
  • Through March, snow cover percent and snow cover days were higher in continental locations and lower in California and Southwest United States.
  • February patterns in Snow Water Equivalent (SWE) held through March, with low snowpack persisting in California and above average snow in locations farther inland.
  • By the end of March, some regions no longer had a snowpack, such as monitoring sites in Arizona.
  • April 1 is historically viewed as nearing the maximum SWE. The Rockies show less than a 50 percent probability of reaching maximum SWE in March while the Sierra Nevada, Arizona, New Mexico, and localized sites in the Pacific Northwest show greater than a 50 percent probability of reaching maximum.

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