Drought in Arizona
Every drought event the National Weather Service has filed in Arizona, year by year, with the most significant episodes. A drought reaching severe (D2) or worse on the US Drought Monitor, or with notable impacts.
The most significant on the map
The most significant drought episodes in Arizona.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 633
- Deaths
- 0
- Injuries
- 0
- Damage
- None recorded
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Drought in Arizona, November 1 to 30, 2011Extreme drought conditions continued across southern Arizona in November.
- Drought in Arizona, December 1 to 20, 2011Drought conditions across southern Arizona eased somewhat toward the end of December.
- Drought in Arizona, September 1 to 30, 2011Long term drought conditions continued during September with some improvement during the beginning of the month, mostly across eastern Pima County. Dry conditions returned the later half of the month as the Monsoon began to wind down.
- Drought in Arizona, August 1 to 31, 2011Long term drought conditions continued in August although minor improvement due to beneficial monsoon rain, occurred across parts of Cochise, Graham and Greenlee Counties.
- Drought in Arizona, November 1 to 30, 2020The exceptional drought (D4) category, which began in eastern portions of Pima and Pinal counties and western Graham County in October, expanded across all of Graham and Greenlee counties, northern Cochise and Santa Cruz counties and central Pima County during November.
- Drought in Arizona, December 1 to 31, 2020The exceptional (D4) and extreme (D3) drought categories continued across a large part of southeast Arizona during December, with the exception of western Pima County.
- Drought in Arizona, January 1 to 31, 2021The exceptional (D4) and extreme (D3) drought categories continued across a large part of southeast Arizona during January, with the exception of western Pima County.
- Drought in Arizona, April 1 to 30, 2021The exceptional (D4) and extreme (D3) drought categories continued across a large part of southeast Arizona during April, with the exception of western Pima County.
- Drought in Arizona, February 1 to 28, 2021The exceptional (D4) and extreme (D3) drought categories continued across a large part of southeast Arizona during February, with the exception of western Pima County.
- Drought in Arizona, March 1 to 31, 2021The exceptional (D4) and extreme (D3) drought categories continued across a large part of southeast Arizona during March, with the exception of western Pima County.
- Drought in Arizona, May 1 to 31, 2021The exceptional (D4) and extreme (D3) drought categories continued across a large part of southeast Arizona during May, with the exception of western Pima County. Rain for the month totaled less than 0.10 inch in most areas with spotty amounts of 0.25 to 0.50 inch on May 20-21.
- Drought in Arizona, July 1 to 31, 2021A wet July caused the exceptional (D4) drought category and extreme (D3) drought category to cease across nearly all of southeast Arizona, with exceptional drought only remaining in far southeast Cochise County by the end of the month.
- Drought in Arizona, June 1 to 30, 2021The exceptional (D4) and extreme (D3) drought categories continued across a large part of southeast Arizona during June, with the exception of western Pima County. Most areas only tallied 0.5 or less for the month, which is close to normal.
- Drought in Arizona, June 1 to 30, 2025The extreme (D3) drought category continued in the western, southern, and eastern sections of Southeastern Arizona. The total area from much of Pima County into Graham and Greenlee counties and portions of Santa Cruz and Cochise counties.
- Drought in Arizona, July 1 to 31, 2011Long term drought conditions continued in July with some improvement due to beneficial monsoon rain.
- Drought in Arizona, October 1 to 31, 2011Long term drought conditions continued during October with very little improvement during the month due to very little rainfall.
- Drought in Arizona, June 1 to 30, 2011Long term drought conditions continued during the month of June, expanding in coverage and intensity as southern Arizona received little to no rain.
- Drought in Arizona, July 1 to 31, 2025The extreme (D3) drought category continued in the western, southern, and eastern sections of Southeastern Arizona. The total area from much of Pima County into Graham and Greenlee counties and portions of Santa Cruz and Cochise counties.
- Drought in Arizona, May 1 to 31, 2011A long term drought continued across southeast Arizona during the month of May.
- Drought in Arizona, June 1 to 30, 2018Extreme drought (D3 category), which began in January, changed little in areal extent during June across sections of southeast Arizona. Expansion of extreme drought farther southeast was inhibited by a significant precipitation event resulting from the remnants of Hurricane Bud.
- Drought in Arizona, July 1 to 31, 2018Extreme drought (D3 category), which began in January, began to decrease in areal coverage across parts of southeast Arizona toward the end of July.
- Drought in Arizona, October 1 to 31, 2020The extreme drought (D3) category, which began in late August and expanded in September, expanded further in October to include all of the Tohono O'odham Nation and all of Santa Cruz and Cochise counties, except for the Huachuca Mountains.
- Drought in Arizona, May 1 to 31, 2025The extreme (D3) drought category continued in northeastern sections, western sections and eastern sections of Southeastern Arizona. The total area from much of Pima County into Graham and Greenlee counties and portions of Santa Cruz and Cochise counties.
- Drought in Arizona, March 1 to 31, 2011Long term drought continued into March resulting in an upgrade to D3 conditions across southeast Arizona.
- Drought in Arizona, April 1 to 30, 2011Severe to extreme drought conditions continued through the month of April across southeast Arizona.
More
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.