More than 61% of the Lower 48 states are now in drought, federal monitors confirmed this week, as the aftermath of the hottest March ever recorded across the contiguous United States continues to drain moisture from soils, streams, and mountain snowpack heading into summer.
The U.S. Drought Monitor reported that 61.68% of the contiguous states and 51.54% of the full United States including Puerto Rico met drought criteria as of April 29, 2026. The updated map reflecting those conditions was released on Thursday, May 1, 2026. That places the country in one of its most widespread spring droughts in the monitor’s 26-year history, with conditions spanning from the southern Plains through the interior West and into parts of the Upper Midwest.
Record March heat set the stage
The warmth that preceded this drought was not subtle. March 2026 averaged 9.4 degrees Fahrenheit above the 20th-century mean across the contiguous states, making it the warmest March in NOAA’s records, which stretch back to 1895. According to the agency’s national climate report for the month, 1,432 counties recorded their hottest March day on record. That county-level record count is drawn from the same NCEI report, which uses daily temperature observations dating to 1950.
That kind of heat does not just feel uncomfortable. It accelerates evaporation from reservoirs and cropland, pulls moisture out of topsoil before plants can use it, and triggers early snowmelt in the mountains. In a landscape already running dry, the March temperatures acted as an accelerant.
Western snowpack hit historic lows
Water managers across the West rely on April 1 snowpack measurements as their primary forecast tool for spring and summer water supply. This year, those numbers were grim. The USDA’s Natural Resources Conservation Service reported record-low April 1 snow water equivalent across the western states, based on readings from its SNOTEL automated stations and manual snow course surveys.
“We have never seen basin-wide numbers this low on April 1 in the 40-plus years of the SNOTEL network,” said Karl Wetlaufer, a hydrologist with the NRCS National Water and Climate Center, describing the readings during a spring water supply briefing.
The 2026 snow season arrived late, peaked early, and then collapsed under the March heat wave. For river basins that depend on slow, steady snowmelt to fill reservoirs through May and June, the implications are severe. Irrigators in the Colorado River basin, ranchers in the northern Rockies, and municipal utilities from Denver to Sacramento are all working with a sharply reduced water budget.
Farmers and water managers brace for a difficult season
“I have been farming this ground for 30 years and I have never gone into May with soil this dry,” said a wheat grower in western Kansas, speaking during a recent county extension meeting about planting decisions. Across the southern Plains, producers are weighing whether to plant full acreage or hold back, knowing that without timely rain the investment in seed and fuel may not pay off.
In the Colorado River basin, water managers are recalculating allocation forecasts downward. “Our inflow projections for Lake Powell dropped by nearly a third between March 1 and April 15,” said a Bureau of Reclamation spokesperson during a stakeholder call in late April. Municipal utilities in several western cities have begun urging voluntary conservation ahead of what could become mandatory restrictions later in the summer.
A feedback loop of heat and dryness
These three forces are not operating independently. Record warmth speeds evaporation and snowmelt, which depletes the moisture reserves that would otherwise buffer against drought. Drier soils, in turn, absorb less rainfall when storms do arrive, because parched ground tends to shed water as runoff rather than storing it. The result is a compounding cycle: heat deepens drought, and drought amplifies the effect of heat.
“What we are seeing is the textbook definition of a flash drought amplified by background warming,” said a climatologist at the National Drought Mitigation Center. “The speed at which conditions deteriorated between mid-March and late April is striking even by historical standards.”
The Drought Monitor itself reflects this complexity. It is not a single sensor reading but a composite assessment that synthesizes precipitation, temperature, soil moisture, streamflow, and satellite vegetation data through a weekly expert review. The 61.68% figure represents professional judgment layered on top of multiple observational inputs, which is why it is widely treated as the authoritative national snapshot.
Key gaps in the picture
Despite the alarming headline numbers, several important questions remain unanswered. No published federal analysis has broken down how much of the current drought footprint is driven by rainfall deficits versus heat-driven evaporation. NOAA’s Climate at a Glance tool provides temperature and precipitation rankings by region, but translating those into a causal split requires work that has not yet appeared in agency reports.
Detailed reservoir storage levels and streamflow data from the U.S. Geological Survey would help quantify the real-world water supply impact, but those figures have not been aggregated at the national scale in the weekly drought narrative. That leaves a gap between the broad red-and-orange shading on the drought map and the concrete status of the infrastructure that delivers water to taps and fields.
The forward outlook carries its own uncertainty. The Climate Prediction Center’s Seasonal Drought Outlook projects where drought is expected to persist, worsen, or improve over the next three months, but seasonal precipitation forecasts for the West carry wide confidence intervals. A single sustained wet pattern could shift the trajectory in ways models struggle to capture months ahead.
What history and climate trends suggest
Long-term temperature records show that both average warmth and the frequency of extreme heat events have increased across the United States over recent decades. That background trend means the atmosphere is more efficient at pulling moisture from the landscape than it was a generation ago, raising the baseline risk of rapid drought development even in years with near-normal rainfall.
Formal attribution studies linking this specific season’s drought to long-term climate change have not yet been published. But the pattern fits a trajectory that climate scientists have warned about for years: as temperatures rise, droughts arrive faster, bite harder, and require more precipitation to break.
Comparisons to recent severe drought years offer some context. The 2012 drought, which devastated Midwest corn and soybean crops, peaked with about 65% of the Lower 48 in drought during late summer. The current 61.68% figure, reached in late April before the hottest months have even begun, suggests the country could be on a similar or worse trajectory if summer rains do not materialize.
Drought-strained West faces a narrowing window for relief
The verified data establishes a stark starting point for the months ahead. The United States enters summer 2026 with record warmth behind it, historically low mountain snow in the West, and a majority of the Lower 48 already classified in drought. Agricultural losses, wildfire risk, municipal water restrictions, and strain on hydroelectric generation are all on the table if conditions do not improve.
For farmers planting spring crops, the window for meaningful soil moisture recovery is narrowing. For western water managers, the reservoirs that were supposed to be filling right now are instead watching their inflow forecasts shrink. And for the millions of Americans living in drought-affected counties, the question is no longer whether this spring is abnormal. It is whether the summer will offer relief or push an already historic dry spell into uncharted territory.
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*This article was researched with the help of AI, with human editors creating the final content.
