Trinity Dam · Trinity River · California — updated daily from official gauges
Latest reading
Trinity Lake is 78.6% full as of — surface elevation 2,335.59 feet, storage 1,923,374 acre-feet (capacity basis 2,447,650 acre-feet).
That elevation is its lowest July reading since 2023, and 156.45 feet above its record low of 2,179.14 ft (), in a daily record going back to January 1, 1980 (start of CDEC's daily record).
Storage is 106% of the July 23 average across 45 years of record.
Water level change: -1.36 ft over the past week, -8.56 ft over the past month, and -13.26 ft over the past year.
Percent full
78.6%
of 2,447,650 AF
Vs date average
106%
of the Jul 23 storage average since 1980
Elevation
2,335.59 ft
full pool 2,370.0 ft
Storage
1,923,374 AF
-193 KAF vs 1 yr ago
1-week change
-1.36 ft
elevation
1-year change
-13.26 ft
elevation
Trinity Lake vs its record low
In the daily record used by this site (going back to January 1, 1980 (start of CDEC's daily record)), Trinity Lake's lowest surface elevation was 2,179.14 feet on , when storage was 470,176 acre-feet. As of , Trinity Lake is at 2,335.59 feet — 156.45 feet above that record. The record high in the same series was 2,370.40 ft on .
Trinity Lake storage in context
Reading
Elevation (ft)
Storage (AF)
% full
Today (July 23, 2026)
2,335.59
1,923,374
78.6%
One year ago
2,348.85
2,116,636
86.5%
Five years ago
2,260.19
1,045,767
42.7%
Record low (December 8, 2015)
2,179.14
470,176
19.2%
Capacity basis
2,370.00
2,447,650
100.0%
Trinity Lake water level, past 12 months
Trinity Lake daily surface elevation (feet above sea level), past 12 months. Source: California DWR CDEC. Rendered at build time from the official gauge record — no JavaScript.
Trinity Lake elevation, full record
Trinity Lake month-end surface elevation, 1980–2026 — the full daily record fetched from California DWR CDEC, one point per month.
Last 14 daily readings
Date
Elevation (ft)
Day change
Storage (AF)
July 23, 2026
2,335.59
-0.07 ft
1,923,374
July 22, 2026
2,335.66
-0.09 ft
1,924,334
July 21, 2026
2,335.75
-0.06 ft
1,925,605
July 20, 2026
2,335.81
-0.16 ft
1,926,494
July 19, 2026
2,335.97
-0.31 ft
1,928,725
July 18, 2026
2,336.28
-0.33 ft
1,933,080
July 17, 2026
2,336.61
-0.34 ft
1,937,877
July 16, 2026
2,336.95
-0.34 ft
1,942,660
July 15, 2026
2,337.29
-0.34 ft
1,947,536
July 14, 2026
2,337.63
-0.31 ft
1,952,402
July 13, 2026
2,337.94
-0.32 ft
1,956,839
July 12, 2026
2,338.26
-0.30 ft
1,961,353
July 11, 2026
2,338.56
-0.35 ft
1,965,712
July 10, 2026
2,338.91
—
1,970,660
Frequently asked questions
What is the water level of Trinity Lake today?
As of July 23, 2026, Trinity Lake's surface elevation is 2,335.59 feet, with 1,923,374 acre-feet in storage — 78.6% of the 2,447,650 acre-foot capacity basis. Source: California DWR CDEC daily gauge data.
How full is Trinity Lake?
Trinity Lake is 78.6% full as of July 23, 2026. Its storage is 106% of the July 23 average across its record since 1980.
Is Trinity Lake rising or falling?
Trinity Lake is falling: its elevation changed -1.36 feet over the week ending July 23, 2026, -8.56 ft over the past month, and -13.26 feet over the past year. Source: California DWR CDEC daily gauge data.
What was Trinity Lake's lowest water level on record?
Trinity Lake's lowest surface elevation in the daily record since January 1, 1980 was 2,179.14 feet on December 8, 2015, per the daily record used by this site. As of July 23, 2026 the reservoir is 156.45 feet above that record low.
About this gauge
Trinity Lake (formerly Clair Engle Lake) on the Trinity River stores water for the Central Valley Project's Trinity River Division in far-northern California.
Data: California DWR CDEC station CLE, daily reservoir elevation (sensor 6) and storage (sensor 15). Percent full uses the 2,447,650 acre-foot capacity from the CDEC daily reservoir storage summary. Updated daily.