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Current U.S. Drought Monitor Conditions for Wyoming

The U.S. Drought Monitor (USDM) is updated each Thursday to show the location and intensity of drought across the country. This map shows drought conditions across Wyoming using a five-category system, from Abnormally Dry (D0) conditions to Exceptional Drought (D4). The USDM is a joint effort of the National Drought Mitigation Center, USDA, and NOAA. Learn more.

The following state-specific drought impacts were compiled by the National Drought Mitigation Center. While these impacts are not exhaustive, they can help provide a clearer picture of drought in Wyoming. 

D0 - Abnormally Dry
  • Fishing restrictions are issued
94.6
of WY
D1 - Moderate Drought
  • Hay and forage yield is low; producers give supplemental feed to cattle
  • Fire danger is elevated; fire and firework restrictions are implemented
  • Fewer wildflowers bloom
81.7
of WY
D2 - Severe Drought
  • Pasture conditions are poor; overgrazing is reported; hay is scarce; producers are selling cattle; dust increases
  • Trees and vegetation are stressed
  • Water pressure is low; well levels decline
45.0
of WY
D3 - Extreme Drought
  • Snowpack is poor
  • Surface water is inadequate for ranching and farming
5.2
of WY
D4 - Exceptional Drought
  • Revenue losses are reported in all agricultural sectors
  • Ranchers reduce/sell herds, raise fewer cattle, and wean calves early
  • Sheep and lamb herds are reduced
0.0
of WY
D0 - Abnormally Dry
  • Fishing restrictions are issued
94.6
of WY
D1 - Moderate Drought
  • Hay and forage yield is low; producers give supplemental feed to cattle
  • Fire danger is elevated; fire and firework restrictions are implemented
  • Fewer wildflowers bloom
84.8
of WY
D2 - Severe Drought
  • Pasture conditions are poor; overgrazing is reported; hay is scarce; producers are selling cattle; dust increases
  • Trees and vegetation are stressed
  • Water pressure is low; well levels decline
44.9
of WY
D3 - Extreme Drought
  • Snowpack is poor
  • Surface water is inadequate for ranching and farming
6.0
of WY
D4 - Exceptional Drought
  • Revenue losses are reported in all agricultural sectors
  • Ranchers reduce/sell herds, raise fewer cattle, and wean calves early
  • Sheep and lamb herds are reduced
0.0
of WY
D0 - Abnormally Dry
  • Fishing restrictions are issued
98.6
of WY
D1 - Moderate Drought
  • Hay and forage yield is low; producers give supplemental feed to cattle
  • Fire danger is elevated; fire and firework restrictions are implemented
  • Fewer wildflowers bloom
72.5
of WY
D2 - Severe Drought
  • Pasture conditions are poor; overgrazing is reported; hay is scarce; producers are selling cattle; dust increases
  • Trees and vegetation are stressed
  • Water pressure is low; well levels decline
46.8
of WY
D3 - Extreme Drought
  • Snowpack is poor
  • Surface water is inadequate for ranching and farming
18.4
of WY
D4 - Exceptional Drought
  • Revenue losses are reported in all agricultural sectors
  • Ranchers reduce/sell herds, raise fewer cattle, and wean calves early
  • Sheep and lamb herds are reduced
0.0
of WY

Explore Drought Conditions by City and County

Summary

View up-to-date drought conditions down to the city and county level, including temperature, and precipitation conditions, key drought indicators, outlooks, historical conditions, and water supply, agriculture, and public health maps.

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Drought in Wyoming from 2000–Present

The U.S. Drought Monitor started in 2000. Since 2000, the longest duration of drought (D1–D4) in Wyoming lasted 435 weeks beginning on February 13, 2001, and ending on June 9, 2009. The most intense period of drought occurred the week of August 6, 2002, where D4 affected 39.72% of Wyoming land.

 

    The U.S. Drought Monitor (USDM) is a national map released every Thursday, showing parts of the U.S. that are currently in drought. The USDM relies on drought experts to synthesize the best available data and work with local observers to interpret the information. The USDM also incorporates ground truthing and information about how drought is affecting people, via a network of more than 450 observers across the country, including state climatologists, National Weather Service staff, Extension agents, and hydrologists. Learn more.

    The Standardized Precipitation Index (SPI) is an index to characterize meteorological drought on a range of timescales, ranging from 1 to 72 months. The SPI is the number of standard deviations that observed cumulative precipitation deviates from the climatological average. NOAA's National Centers for Environmental Information produce the 9-month SPI values below on a monthly basis, going back to 1895. Learn more.

    Tree rings are used to extend the instrumental record of drought to over 2,000 years. The Living Blended Drought Product (LBDP) is a recalibrated data series of June-July-August Palmer Modified Drought Index (PMDI) values in the lower 48 U.S. states. This dataset blends tree-ring reconstructions and instrumental data to estimate the average summer PMDI values, which extend over 2,000 years in some parts of the U.S. Learn more.