Casias Creek
Streamflow, conditions and background by watershed segment. Data through November 1, 2026.
Data gaps and disparities
Found automatically in the gauge records behind this river, and notes from a reviewer who checked them against other sources. Gauges need at least 26 weeks of daily data to appear on the Flow tab.
Warnings (2)
- warning: seasonal Casias Creek Near Costilla, NM: No record in Nov–Mar most years: the gauge reports seasonally, so yearly and some monthly means are missing or cover only part of the year.
- warning: no yearly Upper Rio Grande: No year has the 45 weeks a yearly mean needs (most has 30), so the Year view is empty for this segment. Use Month or Week.
Context (1)
Show 1 notes
- gap Casias Creek Near Costilla, NM: 31 gaps of 60+ days inside the record (6,931 days in all). Longest: Oct 1, 1940 to Jun 30, 1941 (273 days); Oct 1, 1939 to May 31, 1940 (244 days); Oct 1, 1959 to May 31, 1960 (244 days).
Values removed (0)
A reading is removed automatically only when it is impossible (for example, a daily mean above the highest flow USGS recorded that water year). Low and zero flows are never removed: rivers here really do dry up.
None.
Gauges
Each row is one physical gauge; "published by" lists every agency copy that was merged into it.
| Gauge | Segment | Published by | First | Last | Weeks |
|---|---|---|---|---|---|
| Casias Creek Near Costilla, NM | Upper Rio Grande | codwr, usgs | 1937-05-03 | 2026-10-19 | 2130 |