Weekly Map - Drought Conditions

The Arizona Drought Monitoring Technical Committee confers weekly to advise the U.S. Drought Monitor authors on the current drought conditions in Arizona, and makes recommendations about the position of the drought boundaries for Arizona. The U.S. Drought Monitor is the official record of drought for Federal drought relief claims. Information used by the MTC in advising the Drought Monitor authors includes numerous drought indices, precipitation and stream flow data, and impacts data. Every Thursday, the Drought Status web page automatically updates with the latest U.S. Drought Monitor map of Arizona.

Short-term Drought Conditions

Monthly Drought Status Summary: February 2024

Short term drought conditions.

February was a wetter month across the state, with Pinal and Cochise counties as well as portions of central Coconino and southern Pima counties with much above normal precipitation. The majority of the state was also much warmer than normal. The total Salt-Verde reservoir system was 84% full at the end of the month, with statewide snow water equivalent slightly above median by the end of February (105%).

Areas without drought or with Abnormally dry (D0) conditions expanded in Coconino, Yavapai, and Pinal counties (52% of state). Extreme (D3) short-term drought remained in eastern Cochise County and small areas of southern Graham and Greenlee counties (2% of state), while Severe (D2) short-term drought fully retreated from Pima and Santa Cruz counties and improved in Gila and Apache counties (15% of state). Moderate (D1) short-term drought decreased to 31% of the state, largely remaining in northwestern, central, eastern, and southeastern counties.

El Nino conditions will rapidly deteriorate this spring, then better than a 50% chance exists of La Nina developing during the summer. As a result, there is no tilt in precipitation odds through the summer, however chances for a dry autumn have increased with the expected La Nina phase.

 

This report was prepared by the Arizona Drought Monitoring Technical Committee on March 14, 2024. Arizona's short-term drought status map is updated during the first week of each month.

Long-term Drought Conditions

Quarterly Drought Status Update: OCTOBER-DECEMBER 2023

Long term drought map

Arizona experienced its 5th warmest and 26th driest October to December (since 1895). Exceptional (D4) long-term drought expanded in Maricopa and east-central Coconino counties, while continuing in areas of La Paz and Pima counties. Extreme (D3) long-term drought increased in Mohave, Maricopa, and portions of Coconino, Yavapai, Pinal, and Pima counties. Severe (D2) long-term drought escalated in Mohave, La Paz, Pinal, Pima, and Coconino counties, as well as portions along the Mogollon Rim to the White Mountains. Moderate (D1) long-term drought developed in Gila, Graham, Greenlee, Apache, and Cochise counties. Portions of northern and southeastern counties continued supporting small areas of Abnormally Dry (D0) conditions or no long-term drought.

A strong El Nino is currently reaching its peak with better than a 70% chance of neutral conditions developing by the middle of the spring. As a result, there is only a slight chance precipitation amounts will be in an above normal category over the next couple of months with no tilt in odds beyond that time.

 

This report was prepared by the Arizona Drought Monitoring Technical Committee, January 17, 2024. Arizona's long-term drought status map is updated quarterly and the next update in early December, it will reflect the conditions of  January, February, and March. The long-term drought status for each watershed is determined by comparing the precipitation and streamflow percentiles for the past 24, 36, 48 and 60 months to a 40-year historical record.

 


REPORTS FOR 2024

  • December*
  • November
  • October
  • September*
  • August
  • July
  • June*
  • May
  • April

 

*Long-term drought status reports are represented with an asterisk