Weekly Drought Monitor for the Week ending 4/7/26

Drought in the Lower 48 States increased 0.2% since last week and 9.2% since last month.

This Week's Drought Summary…

This U.S. Drought Monitor (USDM) week saw degradations across the areas of the West, Southeast, and Mid-Atlantic, while rainfall during the past week led to improvements in drought-affected areas of the South, Plains, and Midwest. In the Midwest, widespread improvements were made after another round of precipitation during the past week leading to removal of areas of drought on the map in Iowa, Missouri, Illinois, Indiana, and Ohio. In these areas, precipitation totals ranged from 2 to 5 inches. Similarly, significant rainfall was observed in portions of Texas, Oklahoma, and Louisiana leading to targeted improvements. Out West, generally dry conditions prevailed across much of the region, although modest precipitation totals were observed in areas of the Pacific Northwest, Northern California, Intermountain West, and Southwest with the highest totals logged in California. Despite the much-needed precipitation, conditions deteriorated on the map in Oregon, California, Nevada, Wyoming, Montana, and New Mexico. In the Hawaiian Islands, conditions have improved significantly during the past two months due to historic rainfall events observed across the island chain. Elsewhere, dry conditions continued across much of the Southeast and Mid-Atlantic, leading to degradation in conditions from Virginia to Florida.
According to the latest U.S. temperature and precipitation analysis by NOAA’s Center for Environmental Information, March 2026 was the warmest March on record for the contiguous U.S. (CONUS) with average temperatures reaching 9.4 °F above the 20th-century average. For the month, 1,432 counties observed their single warmest March day on record (1950-present). Moreover, the April 2025 to March 2026 period was the warmest 12-month span recorded for CONUS since 1895. In terms of precipitation, the January to March period was the driest on record for CONUS, breaking the previous record set in 1910.
Coming into April, mountain snowpack conditions remain well below normal despite this week’s precipitation across the higher elevations of the Cascades, Sierra, and Rockies. According to the Natural Resources Conservation Service (NRCS) SNOw TELemetry (SNOTEL) network (April 7), region-level (2-digit HUC) snow water equivalent (SWE) values (percent of median) are as follows: Pacific Northwest 50%, Missouri 58%, Upper Colorado 26%, Great Basin 18%, Lower Colorado 17%, Rio Grande 13%, and Arkansas-White-Red 10%. In California, statewide snowpack is 16% of normal (April 7), with the Southern Sierra at 27%, Central Sierra at 19%, and Northern Sierra at 5%.

 

Looking Ahead...

The NWS Weather Prediction Center 7-Day Quantitative Precipitation Forecast calls for precipitation accumulations generally ranging from 1 to 4 inches across eastern portions of the Southern Plains, Midwest, and Northeast, with the heaviest totals (locally 3 to 4 inches) along a corridor extending from eastern Oklahoma and Arkansas through the Mid-Mississippi Valley into eastern portions of the Upper Midwest. Across the Southeast and Mid-Atlantic, very dry conditions are expected, with little or no precipitation across most areas. The highest totals in the region are expected in isolated areas of eastern Florida, where accumulations may reach 2 to 3 inches. Across the High Plains, light-to-moderate precipitation accumulations ranging from 0.25 to 1.5 inches are expected, with the greatest totals across the eastern extent of the region. In the West, moderate-to-heavy liquid precipitation accumulations are expected across areas of California, particularly along the central and northern Sierra Nevada and coastal ranges, as well as portions of the central and northern Rockies, with lighter to moderate totals across portions of the Pacific Northwest. Dry conditions are expected to prevail across much of the Southwest, including areas of the southeastern California deserts, southern Nevada, Arizona, and New Mexico.
The NWS 6–10-Day Temperature Outlook (valid April 14–18, 2026) calls for above-normal temperatures across nearly all of the contiguous U.S., with the highest probabilities across the eastern half of the country, including the Midwest, Southeast, Mid-Atlantic, and Northeast. Below-normal temperatures are limited to areas along the broader U.S.–Canada border region in the Northern Plains and Upper Midwest, while near-normal temperatures are expected across parts of the Pacific Northwest.
In terms of precipitation, the 6–10-Day Outlook calls for above-normal precipitation across the Far West, northern Rockies, New Mexico, Texas, the South (eastern extent), portions of the central and southern Plains, Midwest, and Northeast. Near-normal precipitation is expected across the Intermountain West, Desert Southwest, areas of the South, Mid-Atlantic, and coastal New England. Below-normal precipitation is favored across the Southeast and portions of the Mid-Atlantic.