263.34 ft NGVD29
level Reading is typical for early October.
Reading comes straight from U.S. Geological Survey National Water Information System (USGS gauge 01396790) and updates live when you load this page.
Spruce Run Reservoir through the year
The band is the lake's own normal: where the level has run on each calendar day, 2013–2026. The summer drawdown — and how this year sits in it — shows up without reading a single number.
This year vs the years that matter
This year's trace against last year and the driest and wettest years on record — the drought-context question every lake regular asks.
- 2026 (this year)
- 2025 (last year, driest on record)
- 2021 (wettest on record)
Spruce Run Reservoir water temperature
73° as of August 25, 2026
Read from the USGS gauge on the reservoir at Clinton. It has been reading temperature again since April 2026 and has climbed from the mid-fifties then to the low seventies in August, so it is reading the surface — but it has no winter behind it yet. One sensor is one spot on the lake. A shallow cove on a still afternoon runs warmer than this, and the water a few feet down runs colder.
Water temperature is not water safety. A warm surface says nothing about what is under it — colder water a few feet down, currents near the dam or the spillway, or a bacteria advisory — so check with the lake office before you get in.
Full pool, datum, and the gauge
"Full pool" here means the conservation pool — the level the lake is designed to hold for water supply and recreation, not the flood-control space above it. The full explainer covers flood pool and dead pool too.
| Full pool | not published by the operator |
|---|---|
| Gauge | USGS gauge 01396790 · U.S. Geological Survey National Water Information System |
| Datum | NGVD29 |
| Last verified | August 20, 2026 |
LakeDates reports lake level, not ramp status. Whether a given ramp or marina is usable at this level varies ramp by ramp — call the marina before you tow.
Quick answers
What is the lake level for Spruce Run Reservoir today?
Spruce Run Reservoir is at 263.34 ft (NGVD29) as of October 1, 2026 — Reading is typical for early October.
Is Spruce Run Reservoir full?
New Jersey Water Supply Authority doesn't publish a conservation-pool figure for Spruce Run Reservoir, so this page shows the reading against the lake's own seasonal history instead.
What is full pool for Spruce Run Reservoir?
New Jersey Water Supply Authority doesn't publish a single conservation-pool elevation for Spruce Run Reservoir. The seasonal chart shows the range the lake actually runs instead.
What is the water temperature at Spruce Run Reservoir?
Spruce Run Reservoir was 73° on August 25, 2026. Read from the USGS gauge on the reservoir at Clinton. It has been reading temperature again since April 2026 and has climbed from the mid-fifties then to the low seventies in August, so it is reading the surface — but it has no winter behind it yet. One sensor is one spot on the lake. A shallow cove on a still afternoon runs warmer than this, and the water a few feet down runs colder.