Counties with the worst droughts in Montana

Written by:
September 27, 2024
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Counties with the worst droughts in Montana

Over one-third of the continental United States is currently experiencing moderate to exceptional drought, according to the U.S. Drought Monitor.

Storms during this past winter brought heavy (in some areas, record-setting) rainfall and flooding to California, offering the state an expected two-year reprieve from widespread droughts that covered nearly 100% of the state from 2020 to 2022. But in other parts of the country, especially dry conditions continue. West Virginia is currently the state with the most widespread drought, covering all of the state's area.

In periods of drought, levels of major reservoirs and rivers can fall dramatically. Groundwater systems are also affected as shrinking water supplies impact agriculture and hydropower generation while increasing wildfire risk.

Periods of drought have intensified and become more frequent in recent years due to climate change. Scientists predict that even in low-emissions scenarios, much of the U.S. will be drier by the end of the century.

Stacker cited data from the U.S. Drought Monitor to identify the counties in Montana with the worst droughts as of Sept. 24, 2024. Counties are listed in order of percent of the area in drought conditions. "Abnormally dry" is not considered to be a drought but is included as a separate data point. Additional data for the state overall is also included. Any counties not experiencing drought are not included in the list. Counties are listed in order of drought severity.

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Emma Rubin // Stacker

Montana statistics

- Abnormally dry: 48.8%
- Area in drought: 44.3% (#12 nationally)
--- Moderate drought: 23.5%
--- Severe drought: 11.5%
--- Extreme drought: 8.3%
--- Exceptional drought: 0.9%
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Dirk Wierenga // Shutterstock

Glacier County

- Abnormally dry: 37.0%
- Area in drought: 63.0%
--- Moderate drought: 63.0%
--- Severe drought: 0.0%
--- Extreme drought: 0.0%
--- Exceptional drought: 0.0%
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Laurens Hoddenbagh // Shutterstock

Valley County

- Abnormally dry: 33.5%
- Area in drought: 66.5%
--- Moderate drought: 66.5%
--- Severe drought: 0.0%
--- Extreme drought: 0.0%
--- Exceptional drought: 0.0%
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Carbon County

- Abnormally dry: 32.4%
- Area in drought: 67.6%
--- Moderate drought: 67.6%
--- Severe drought: 0.0%
--- Extreme drought: 0.0%
--- Exceptional drought: 0.0%
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Toole County

- Abnormally dry: 11.9%
- Area in drought: 88.1%
--- Moderate drought: 88.1%
--- Severe drought: 0.0%
--- Extreme drought: 0.0%
--- Exceptional drought: 0.0%
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Powder River County

- Abnormally dry: 6.7%
- Area in drought: 93.3%
--- Moderate drought: 18.1%
--- Severe drought: 50.5%
--- Extreme drought: 24.7%
--- Exceptional drought: 0.0%
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Drew Halverson // Shutterstock

Sanders County

- Abnormally dry: 5.8%
- Area in drought: 94.2%
--- Moderate drought: 84.6%
--- Severe drought: 9.6%
--- Extreme drought: 0.0%
--- Exceptional drought: 0.0%
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Broadwater County

- Abnormally dry: 3.8%
- Area in drought: 96.2%
--- Moderate drought: 94.6%
--- Severe drought: 1.6%
--- Extreme drought: 0.0%
--- Exceptional drought: 0.0%
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Richland County

- Abnormally dry: 2.8%
- Area in drought: 97.2%
--- Moderate drought: 58.2%
--- Severe drought: 38.9%
--- Extreme drought: 0.0%
--- Exceptional drought: 0.0%
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Beaverhead County

- Abnormally dry: 2.2%
- Area in drought: 97.8%
--- Moderate drought: 31.3%
--- Severe drought: 26.5%
--- Extreme drought: 40.0%
--- Exceptional drought: 0.0%
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Madison County

- Abnormally dry: 1.8%
- Area in drought: 98.2%
--- Moderate drought: 66.9%
--- Severe drought: 26.4%
--- Extreme drought: 4.9%
--- Exceptional drought: 0.0%
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Lewis and Clark County

- Abnormally dry: 0.9%
- Area in drought: 99.1%
--- Moderate drought: 25.8%
--- Severe drought: 48.4%
--- Extreme drought: 21.1%
--- Exceptional drought: 3.8%
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Daniels County

- Abnormally dry: 0.0%
- Area in drought: 100.0%
--- Moderate drought: 100.0%
--- Severe drought: 0.0%
--- Extreme drought: 0.0%
--- Exceptional drought: 0.0%
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Fallon County

- Abnormally dry: 0.0%
- Area in drought: 100.0%
--- Moderate drought: 76.2%
--- Severe drought: 23.8%
--- Extreme drought: 0.0%
--- Exceptional drought: 0.0%
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Wibaux County

- Abnormally dry: 0.0%
- Area in drought: 100.0%
--- Moderate drought: 61.6%
--- Severe drought: 38.4%
--- Extreme drought: 0.0%
--- Exceptional drought: 0.0%
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Mineral County

- Abnormally dry: 0.0%
- Area in drought: 100.0%
--- Moderate drought: 0.0%
--- Severe drought: 100.0%
--- Extreme drought: 0.0%
--- Exceptional drought: 0.0%
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Ravalli County

- Abnormally dry: 0.0%
- Area in drought: 100.0%
--- Moderate drought: 12.2%
--- Severe drought: 82.4%
--- Extreme drought: 5.4%
--- Exceptional drought: 0.0%
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Roosevelt County

- Abnormally dry: 0.0%
- Area in drought: 100.0%
--- Moderate drought: 64.0%
--- Severe drought: 26.1%
--- Extreme drought: 9.9%
--- Exceptional drought: 0.0%
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Jefferson County

- Abnormally dry: 0.0%
- Area in drought: 100.0%
--- Moderate drought: 25.8%
--- Severe drought: 50.5%
--- Extreme drought: 23.7%
--- Exceptional drought: 0.0%
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Sheridan County

- Abnormally dry: 0.0%
- Area in drought: 100.0%
--- Moderate drought: 15.8%
--- Severe drought: 33.6%
--- Extreme drought: 50.5%
--- Exceptional drought: 0.0%
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Carter County

- Abnormally dry: 0.0%
- Area in drought: 100.0%
--- Moderate drought: 2.1%
--- Severe drought: 45.0%
--- Extreme drought: 52.9%
--- Exceptional drought: 0.0%
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Silver Bow County

- Abnormally dry: 0.0%
- Area in drought: 100.0%
--- Moderate drought: 0.0%
--- Severe drought: 2.1%
--- Extreme drought: 97.9%
--- Exceptional drought: 0.0%
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Deer Lodge County

- Abnormally dry: 0.0%
- Area in drought: 100.0%
--- Moderate drought: 0.0%
--- Severe drought: 0.0%
--- Extreme drought: 100.0%
--- Exceptional drought: 0.0%
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Granite County

- Abnormally dry: 0.0%
- Area in drought: 100.0%
--- Moderate drought: 0.0%
--- Severe drought: 8.2%
--- Extreme drought: 88.0%
--- Exceptional drought: 3.8%
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Missoula County

- Abnormally dry: 0.0%
- Area in drought: 100.0%
--- Moderate drought: 6.1%
--- Severe drought: 60.4%
--- Extreme drought: 24.8%
--- Exceptional drought: 8.7%
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Powell County

- Abnormally dry: 0.0%
- Area in drought: 100.0%
--- Moderate drought: 0.0%
--- Severe drought: 5.4%
--- Extreme drought: 56.0%
--- Exceptional drought: 38.6%

This story features data reporting and writing by Emma Rubin and is part of a series utilizing data automation across 45 states.

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