Welcome to the North American Drought Monitor (NADM) supplemental website. This website provides additional maps and statistics for the NADM. The NADM is a cooperative effort between drought experts in Canada, Mexico and the United States to monitor drought across the continent on an ongoing basis.

This a supplemental website for the North American Drought Monitor. Please visit the official North American Drought Monitor website. Other data for North America can also be found at drought.gov.

Map for December 31, 2022



  • Trevor Hadwen
  • Alyssa Klein


  • Minerva Lopez
  • Yenifeer Loranca


  • Brad Pugh
  • Brad Rippey
  • Mark Brusberg*

* Responsible for collecting analysts' input and assembling the NA-DM map

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Intensity and Impacts

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


  • - Delineates dominant impacts
  • S - Short-term impacts, typically less than 6 months (agriculture, grasslands)
  • L - Long-term impacts, typically greater than 6 months (hydrology, ecology)
  • SL - Short- and long-term impacts