CIBOLA COUNTY, N.M. – Weeks of summer monsoon rainfall are beginning to make a light difference in Cibola County's drought, with most of the county improving from Extreme to Severe Drought after a wet stretch that brought repeated thunderstorms and flooding during July. The improvement is significant, but the county remains entirely in drought and Bluewater Lake continues to decline, illustrating the difference between short-term rainfall and recovery of the region's longer-term water supplies.
Bluewater Lake
According to provisional U.S. Geological Survey data, Bluewater Lake measured 7,364.86 feet on Aug. 11, down from 7,365.05 feet on Aug. 4. That represents a decline of 0.19 feet, or about 2.3 inches in one week.
Bluewater Lake has now fallen below 7,365 feet in elevation. For comparison, the lake stood at 7,368.77 feet on Jan. 1, meaning its surface elevation has declined 3.91 feet since the beginning of 2026.
Rio San Jose
The Rio San Jose at Acoma Pueblo moved in the opposite direction this week.
The river measured 1.93 feet on Aug. 11, according to provisional USGS data, up slightly from 1.92 feet on Aug. 4.
The change is small, but it continues a gradual increase seen during the monsoon. The gauge measured 1.88 feet on July 7, meaning the river has gained approximately 0.05 feet over the past five weeks.
Precipitation Across Cibola
Perhaps the most significant development this week comes from the U.S. Drought Monitor.
Data valid Aug. 4 shows 89.83% of Cibola County in Severe Drought, or D2, and 10.17% remaining in Extreme Drought, or D3. The entire county remains in drought, however, that represents a substantial improvement from early July.
On July 7, 95.37% of Cibola County was classified in Extreme Drought, with only 4.63% in Severe Drought. The latest map essentially reverses those proportions.
The improvement follows weeks of monsoon thunderstorms that brought substantial precipitation to portions of western and central New Mexico during July. Some storms also produced flash flooding, washed-out roads and dangerous conditions in Cibola County.
Cibola County remains entirely within either Severe or Extreme Drought, and the continued decline at Bluewater Lake demonstrates that longer-term hydrologic recovery can lag behind improvements produced by summer rainfall.
The latest precipitation maps capture the stop-andstart nature of this year's monsoon. Drought.gov data valid Aug. 7, show very little precipitation across much of the Grants and El Malpais area during the last seven days, generally less than one-half inch, with some locations receiving little or no measurable rainfall.
At the same time, temperatures surged. Average daily maximum temperatures were generally in the upper 80s to 90s across the region. More notably, the departure-from-normal map shows much of Cibola County running approximately 6 to 8 degrees or more above normal during the seven-day period.
Those conditions match what residents experienced over the weekend. Grants enjoyed warm and generally pleasant weather during the Rugged West Side-by-Side Adventure Rally and concert events, while conditions around Mount Taylor and Bluewater Lake were warm with occasional light rainfall and breezes.
The next seven days could look considerably different.
The National Weather Service's quantitative precipitation forecast for Aug. 10-17 shows another substantial surge of moisture across western New Mexico. Much of the Grants-El Malpais region is forecast to receive approximately 1 to 1.5 inches, while portions of western and southwestern Cibola County could receive 1.5 to 2 inches or more.
As with previous monsoon storms, actual rainfall totals can vary considerably over short distances.
The forecast offers the possibility of additional drought relief, but heavy rainfall over already affected areas can also create renewed flash-flooding concerns in arroyos, washes, low-water crossings and damaged roads.
This last week's numbers provide some of the clearest evidence yet that the 2026 monsoon is helping Cibola County. Extreme Drought has retreated dramatically, the Rio San Jose has risen modestly, and another round of significant rainfall is possible. Bluewater Lake, however, continues to lose elevation.
Water data courtesy of the United States Geological Survey. Temperature, precipitation and drought information courtesy of Drought.gov, the National Weather Service, the U.S. Drought Monitor, the Climate Prediction Center and the New Mexico Environment Department.