Take the The North American Drought Monitor Use Assessment Survey which is being conducted to help identify users' needs.

Map for January 31, 2021

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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.



  • Trevor Hadwen
  • Alyssa Klein


  • Minerva Lopez
  • Reynaldo Pascual


  • David Miskus*
  • Brad Rippey

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

Intensity and Impacts

  • None
  • D0 (Abnormally Dry)
  • D1 (Moderate Drought)
  • D2 (Severe Drought)
  • D3 (Extreme Drought)
  • D4 (Exceptional Drought)
  • - Delineates dominant impacts
  • S - Short-Term impacts, typically less than 6 months (e.g. agriculture, grasslands)
  • L - Long-Term impacts, typically greater than 6 months (e.g. hydrology, ecology)