Wyoming drought

Share of state area in drought (D1-D4) or worse, week over week

Data through Sep 29, 2026 · source last checked Oct 1, 2026 · page revised Oct 1, 2026

Cite

Wyoming: 89% of area in drought (D1-D4) or worse as of Sep 29, 2026 (US Drought Monitor). The Waterline. https://the-waterline.com/drought/wyoming

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<p style="font-size:12px;margin:4px 0 0">Source: <a href="https://the-waterline.com/drought/wyoming?utm_source=embed&utm_medium=credit">The Waterline</a> · updates automatically</p>
<p style="font-size:11px;color:#6b6b6b;margin:2px 0 0">About this data: US Drought Monitor (National Drought Mitigation Center, USDA, NOAA) · Share of area in moderate drought (D1) or worse · Wyoming · % · Conditions as of the prior Tuesday · through Sep 29, 2026</p>

Free to republish with attribution. The chart updates automatically as new data lands.

About this data

Source: US Drought Monitor (National Drought Mitigation Center, USDA, NOAA)
Series: Share of area in moderate drought (D1) or worse
Geography: Wyoming
Unit: %
Calculation: Conditions as of the prior Tuesday
Last observation: Sep 29, 2026
Update frequency: Weekly, released Thursdays

Drought eased week over week (now 89%).

Drought in Wyoming eased to 89% of state area in D1 or worse, down 2 percentage points on the week. Month over month, the state shed 11 percentage points. Despite recent improvement, Wyoming remains 36 percentage points above its 5-year median and 45 points higher than a year ago.

The numbers
Period	Current	Prior	Change
Week over week	89%	91%	-2 pts
Month over month	89%	100%	-11 pts
Year over year	89%	44%	+45 pts
vs 5-yr median	89%	53%	+36 pts

Drought categories on the Sep 29, 2026 map
Category	Share of area in this category	At this level or worse
D0 abnormally dry	11%	100%
D1 moderate drought	29.5%	89%
D2 severe drought	38.1%	59.5%
D3 extreme drought	21.4%	21.4%
D4 exceptional drought	0%	0%

Previous weeks

Week of Sep 22, 2026

Wyoming drought coverage fell to 91% of the state, down 9 percentage points week over week. Coverage remains well above the 5-year median of 53%, and is up 42 percentage points from a year ago.

Week of Sep 8, 2026

Drought coverage in Wyoming remained at 100% as of 2026-09-08, unchanged from the prior week. Year over year, the area in moderate drought or worse has expanded 47 percentage points. Coverage stands 42 points above the 5-year median of 58%.

Week of Sep 1, 2026

Drought held 100% of Wyoming's area as of 2026-09-01, unchanged week over week. Year over year, coverage rose 47 percentage points from 53%. Current conditions stand 44 percentage points above the 5-year median of 56%.

Week of Aug 25, 2026

Drought covers 100% of Wyoming. Week-over-week there was no change, but coverage has worsened 47 percentage points year-over-year and runs 44 percentage points above the 5-year median.

Wyoming drought conditions

Wyoming has 89% of its area in drought (D1 or worse) on the US Drought Monitor map dated Sep 29, 2026, and 100% at least abnormally dry (D0 or worse). The most severe category present is D3, extreme drought, covering 21.4% of the state.

Over the last 52 weekly maps the share in drought ranged from 31.1% (Jan 6, 2026) to 100% (Jun 23, 2026), and every one of them showed at least some drought.

The Monitor sorts land into five categories, from D0, abnormally dry and not yet drought, to D4, exceptional drought, and this page counts D1 through D4 as drought. The guide to what D0 to D4 mean explains each class, who draws the weekly map and why it lags a fast-moving storm.