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Unity Reservoir water level

Reservoir, Oregon, United States

Directions

Right now

Normal for mid-October

Surface elevation

3,786.18ft Down 0.13 ft over the last 7 days

Water stored
2,373 acre‑ft
3,785 3,790 3,795

History

History
3,7853,7903,795ftOct 11Oct 12Oct 13Oct 14Oct 163,7853,7903,795ftOct 11Oct 13Oct 16
3,7853,7903,795ftSep 18Sep 25Oct 2Oct 9Oct 163,7853,7903,795ftSep 18Oct 2Oct 16
3,7803,8003,820ftOct 2025Jan 2026Apr 2026Jul 2026Oct 20263,7803,8003,820ftOct 2025Apr 2026Oct 2026
3,7903,8003,8103,820ftOct 2016Apr 2019Oct 2021Apr 2024Oct 20263,7903,8003,8103,820ftOct 2016Oct 2021Oct 2026
3,7803,8003,820ftJanMarMayJulSepNov20263,7803,8003,820ftJanAprJulOct2026

202120222023202420252026

Surface elevation Normal range (10–90 %)

What this means

The lake level at Unity Reservoir reads 3,786.18 ft, about where it usually sits at this time of year.

The median for mid-October is 3,787.79 ft, based on 36 years of readings, so the lake level is 1.61 ft below typical. On the same day last year the reading was 3,787.80 ft, a difference of −1.62 ft.

It is still going down, by 0.13 ft over the past week. The 30-day range is 3,786.14 ft – 3,786.31 ft.

Many reservoirs are drawn down through summer and fall; most of the refill comes later, with winter rain or spring snowmelt.

Compared with 36 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
3,787.79 ft1.61 ft below the median for this date
Normal for this date
3,782.52 ft – 3,795.95 ft8 years in 10 fall in this range (36 years of records)
Same day last year
3,787.80 ft−1.62 ft
Lowest and highest in 30 days
3,786.14 ft – 3,786.31 ft
Lowest and highest in 12 months
3,786.14 ft – 3,814.09 ft

Boating and fishing at Unity Reservoir

A lake in its usual range is what most ramps, docks and swimming areas are built for.

Conditions at the shore change with the level, so check with the agency that runs the lake before a trip.

Weather at the gauge

No rain in the last 3 days.

17 Sat 70° 38° – Wind 8 mph
18 Sun 67° 38° – Wind 12 mph
19 Mon 68° 43° – Wind 14 mph
20 Tue 64° 44° – Wind 6 mph
21 Wed 63° 45° 0.02 in Wind 13 mph
22 Thu 59° 41° 0.01 in, 43% Wind 7 mph
23 Fri 67° 37° – Wind 15 mph

Forecast: Open-Meteo

Sunrise 07:11 AM Sunset 06:06 PM Daylight 10 hr, 55 min First quarter 43%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Phillips Lake and MasonReservoir 3,983.22 ft Very low 15 mi
John Day River at Blue Mountain Hot Springs near Prairie CityRiver gauge, John Day River 23.7 cfs Very low −1.0 cfs 22 mi
Mf John Day River above Camp Creek, near GalenaRiver gauge, Mf John Day River 15.5 cfs Very low −0.4 cfs 33 mi
John Day River near John DayRiver gauge, John Day River 3.54 ft Below flood stage −0.01 ft 36 mi
Thief Valley ReservoirReservoir 3,096.44 ft Very low 40 mi
Beulah Reservoir and Agency ValleyReservoir 3,289.72 ft Normal 41 mi
Bully Creek ReservoirReservoir 2,479.49 ft Normal 51 mi

Questions and answers

Is Unity Reservoir higher than last year?

No, it is 1.62 ft lower than on the same day last year, when the reading was 3,787.80 ft.

What is a normal level for Unity Reservoir in mid-October?

The median for mid-October is 3,787.79 ft. In 8 years out of 10 the reading falls between 3,782.52 ft and 3,795.95 ft, based on 36 years of records.

Is Unity Reservoir really 3,786.18 ft deep?

No. 3,786.18 ft is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of Unity Reservoir today?

On Oct 16, 2026, the surface elevation was 3,786.18 ft. Down 0.13 ft over the last 7 days.

Is Unity Reservoir rising or falling?

Down 0.13 ft over the last 7 days.

Is the level of Unity Reservoir normal?

Normal for mid-October. Compared with 36 years of daily readings for this time of year.

How often is this data updated?

The U.S. Bureau of Reclamation publishes a new reading once a day. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Bureau of Reclamation
Station code
usbr:3671 (Agency page)
Coordinates
44.50420, -118.18060 (WGS84)
Update interval
once a day
Licence
Public domain. Data: U.S. Bureau of Reclamation (RISE), provisional data subject to revision

Published series

ParameterLast valueTime (UTC)Quality
Surface elevation 3,786.18 ft 2026-10-16 07:00 Provisional
Water stored 2,373 acre‑ft 2026-10-16 07:00 Provisional

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How to cite

U.S. Bureau of Reclamation: Unity Reservoir (usbr:3671). Accessed October 17, 2026 via Nivelmap, https://nivelmap.com/en/united-states/oregon/unity-reservoir

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.