Every flood and every drought since Denison Dam closed. Lake Texoma’s record high is 645.72 ft; its record low isn’t formally published, so we don’t quote one. Today’s 618.46 ft is higher than 73% of all months on record.
Monthly mean (line) with monthly min–max band. Dashed teal line = full pool (617 ft).
Record high
645.72 ft
2015-05-31
Flood pool
640 ft
top of flood control
Full pool
617 ft
conservation pool
Daily record aggregated here to monthly min/mean/max. Lake level and streamflow from USGS (Denison project data courtesy of USACE Tulsa); reference elevations from USACE and TWDB in NGVD29 — the live gauge reports in NAVD88, so comparisons carry a small datum offset (~½ ft). Historical daily values are agency-reviewed; recent values are provisional.