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Millerton Lake water level

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

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

Millerton Lake is 44% full as of Sep 20, 2026, per CDEC data; 75.2 ft below full pool.

44 % full
low 75.2 ft below full pool
CDEC 230,164 acre-ft · updated Sep 20, 2026
44%
percent full
504.8
water level (ft msl)
75.2
ft below full pool
+0.31
24-hour change (ft)
580
full pool (ft ref.)
0.52M
capacity (acre-ft)

At 504.84 ft, Millerton Lake is lower than 54% of Septembers in 40 years of daily record. Full Millerton Lake almanac, $19 → what is in it

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
509.4 504.8 now 504.2

Is that normal for the date?

At 504.84 ft, Millerton Lake is lower than 54% of Septembers in 40 years of daily record.

The full Millerton Lake almanac, $1940 years of daily record, the normal band for all 366 days, and a tool that tells you how often the lake has been below your ramp or dock elevation. Instant download. See a sample almanac (Lake Powell)or all 19 lakes for $79Checkout runs on Stripe under our parent company, BeLikeNative (Autom8 LLC). That name appears on the receipt and card statement.

The median for this date across 40 years is 506.77 ft, so this is -1.93 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.

How the level compares lately

Over the roughly 30-day series the gage fell 4.6 ft; the last 24 hours moved it up 0.3 ft. For readers outside the U.S., the surface is about 153.9 m above sea level.

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

Going to Millerton Lake?

Recreation-booking links (charters, boat rentals) appear here once partner accounts are wired. See the disclosure page.

Where these numbers come from

Every figure on this page is recomputed in code from a public government feed, never typed by hand. The live elevation is a CDEC gage reading; feet below full pool, the operating-band gaps, the ~30-day change, and the meter conversion are all derived from that one validated reading and the published reference elevations. The reading is timestamped in the gauge above, and LakeLevelNow pulls the same feed the operator reports to.

Questions about Millerton Lake

How full is Millerton Lake right now?
Millerton Lake is about 44% full as of Sep 20, 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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