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Millerton Lake water level

43%
full
503.3 ft
elevation, 76.7 ft below full
−0.6 ft
30-day trend, falling

San Joaquin River · California · operated by USBR (Friant Dam)

By Michael, independent developer behind zovo.one. Readings pulled live from the same CDEC feed the operator reports to.

Millerton Lake is 43% full as of Nov 4, 2026, per CDEC data; 76.7 ft below full pool.

43 % full
low 76.7 ft below full pool
CDEC 225,482 acre-ft · updated Nov 4, 2026
43%
percent full
503.3
water level (ft msl)
76.7
ft below full pool
−0.18
24-hour change (ft)
580
full pool (ft ref.)
0.52M
capacity (acre-ft)
Can I launch? Yes, most ramps usable.
Lake is lower than normal; some ramps may be out of the water. Check ramp status before launching.
~30-day trend · reservoir elevation
505.6 503.3 now 501.9

Is that normal for the date?

At 503.30 ft, Millerton Lake is higher than 54% of Novembers in 40 years of daily record.

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The median for this date across 40 years is 501.24 ft, so this is +2.06 ft against the lake’s own history. Placed on a quantile ladder built from 11,838 daily readings published by CDEC for site MIL, 1985-01-01 to 2026-08-06. This reservoir typically peaks in June and bottoms out in October.

Millerton Lake today: level, trend, source and access

Level against full pool

On Nov 4, 2026 the surface sat at 503.3 ft, 76.7 ft below the full-pool mark of 580 ft. It held 225,482 acre-feet of its 520,528 acre-foot capacity (43% full), so it needs about 295,000 acre-feet more to fill. CDEC put its storage at 100% of the historical average for Nov 4, at or above a normal year for the date. Of the 12 California lakes on this site with a live percent-full reading, it ranks 8 of 12.

Trend

Between Oct 6 and Nov 4 (29 days) the level fell 0.6 ft, about 0.2 ft a week. The high in that window was 505.6 ft on Oct 10 and the low was 501.9 ft on Oct 27. In the last 7 days it rose 1.2 ft. That reverses the earlier decline. The last 24 hours moved it down 0.18 ft.

Data source

The elevation comes from California Data Exchange Center (CDEC) station MIL (California Department of Water Resources), last reported Nov 4, 2026. Percent full is CDEC storage divided by the capacity CDEC lists for the dam. Feet from full pool, the trend and the figures above are computed from that reading and the published full-pool elevation; none is typed by hand. USBR (Friant Dam) runs the dam on the San Joaquin River.

Recreation status

Status: low. At 43% full it is 17.0 points under 60%, the line above which most ramps stay in the water. Expect some ramps to be short of water and check the one you plan to use with USBR (Friant Dam).

To see where today sits against every monthly reading since 1941, the Millerton Lake water level chart plots the whole CDEC storage record and ranks the latest month against the same month in every year.

Check an elevation against full pool

For readers outside the U.S., the surface of Millerton Lake is about 153.4 m above sea level, and full pool is about 176.8 m.

Check any elevation yourself. Type a level in feet above sea level (a ramp cutoff, a marina mark) to see how far it sits below full pool and in meters.

About Millerton Lake

Full pool
580 ft
Capacity
520,528 AF
Dam / operator
USBR (Friant Dam)
River / basin
San Joaquin River
State
California
Data feed
CDEC

Questions about Millerton Lake

How full is Millerton Lake right now?
Millerton Lake is about 43% full as of Nov 4, 2026.
Can I launch a boat at Millerton Lake?
Lake is lower than normal; some ramps may be out of the water. Check ramp status before launching. Individual ramps open and close on their own schedules and on local hazards.
Where does Millerton Lake's level come from?
LakeLevelNow pulls it from the CDEC public water-data feed (California Data Exchange). The reading is timestamped in the gauge above.
Who operates Millerton Lake?
Millerton Lake, on the San Joaquin River, is operated by USBR (Friant Dam). Reservoir releases, flood-control drawdowns, and water-supply decisions are theirs.

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