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: April 2024

April 2024 Short Term Drought

While April starts the first of the three climatologically driest months of the year, April 2024 brought largely above average precipitation across most of central and southern Arizona. Temperature statewide was average to cooler than average, with late April snow events in both the Verde and Little Colorado River basins. 
Short-term drought improved in April, with Extreme (D3) short-term drought fully removed. Severe (D2) short-term drought decreased to only eastern Cochise County and small areas of southern Graham and Greenlee counties (3% of the total state). Moderate (D1) short-term drought remained along the Grand Canyon and Hualapai Indian Reservation into eastern Yavapai and Maricopa counties, as well as portions of Gila, Navajo, Apache, Graham, Greenlee, and Cochise counties (22% of the total state). Abnormally dry (D0) and areas without drought covered the remaining 75% of the state.
El Nino continues to decay in the tropical Pacific with ENSO neutral conditions expected by the end of spring. There is better than a 60% chance of La Nina materializing during the summer with odds tilted slightly towards better chances of drier than normal weather across the state during the second half of the year.

 

This report was prepared by the Arizona Drought Monitoring Technical Committee on May 9, 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: January-March 2024

July 2023 to March 2024 was the 7th warmest July to March in the past 130 years, which plays a significant role in the long-term drought; statewide precipitation was the 49th driest July to March on record. Long-term drought slightly improved across northern counties, including portions of Mohave, Yavapai, and Coconino counties. Long-term drought expanded somewhat in Santa Cruz and Cochise counties, as well as portions of Graham, Greenlee, southern Apache and Navajo counties. Extreme(D3) long-term drought remained largely in Maricopa and southeastern Coconino counties.
El Nino conditions are currently decaying across the tropical Pacific with a better than 60% chance of a La Nina phase developing over the summer. As a result, there is a slight shift in odds that any given location in the state would have below normal rainfall during the monsoon.

This report was prepared by the Arizona Drought Monitoring Technical Committee, April 10, 2024. Arizona's long-term drought status map is updated quarterly and the next update will take place in early June, it will reflect the conditions of  April, May, and June. 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

 

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