Map released: Thurs. February 22, 2024
Data valid: February 20, 2024 at 7 a.m. EST


  • None
  • D0 (Abnormally Dry)
  • D1 (Moderate Drought)
  • D2 (Severe Drought)
  • D3 (Extreme Drought)
  • D4 (Exceptional Drought)
  • No Data


United States and Puerto Rico Author(s):

Pacific Islands and Virgin Islands Author(s):

The Drought Monitor focuses on broad-scale conditions. Local conditions may vary. See accompanying text summary for forecast statements.


Statistics type ?
Week Date None D0-D4 D1-D4 D2-D4 D3-D4 D4 DSCI

Estimated Population in Drought Areas:

West Drought Summary

Five inches or more of precipitation fell along the California coast, across much of northern California, and in southwestern coastal Oregon, with 2 inches or more inland to the Sierra Nevada, Oregon Cascade mountain range, and over southwestern coastal Washington. Half an inch to an inch of precipitation fell across southern parts of the Pacific Northwest inland to the Rockies and a few areas to the north, with up to 2 inches falling from the Great Salt Lake area to Yellowstone National Park. Another area of 1 to 2 inches of precipitation occurred over the Colorado Rockies into adjacent Wyoming. Parts of California have received over 10 inches of precipitation during February and the Sierra Nevada range has received 1 to 3 feet of new snow since the end of January. But even with a wet February, much of the Sierra Nevada still has a below-normal snowpack. As of February 16, the northern Sierra snow water content (SWE) was 83% of normal, the central Sierra SWE was 74% of normal, and the southern Sierra SWE was 72% of normal. So, the D0 along the California-Nevada border was left unchanged.

While this week was dry across New Mexico, precipitation from the last 2 weeks to 3 months prompted the elimination of the D4 in southwestern New Mexico and the northwest D2, and contraction of the D3 in north central and D2 in southwestern parts of the state.

In northern parts of the West, precipitation for the water year to date (October 1, 2023-February 18, 2024) has been largely below normal and the winter snowpack is significantly below normal. Parts of the northern Rockies have record low SWE values, according to SNOTEL data. D0 expanded in parts of Idaho, Oregon, and Washington; spots of severe drought (D2) were added in north central and northeast Wyoming; and D2 was expanded and new D3 added in parts of Montana, especially the western and southern mountains, where the last 3 to 4 months have been dry and SWE values are record low.

Full Summary

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