North American Drought Monitor

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, 2021

Authors

Canada

  • Trevor Hadwen
  • Alyssa Klein

Mexico

  • Yenifeer Loranca
  • Reynaldo Pascual

U.S.A.

  • Brad Pugh*
  • Richard Tinker

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

Map Download

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Previous Map:    Download pngDownload pdfDownload jpg

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