Lake levels › South Dakota

Calamus Reservoir water level today

Normal for this time of year

2,234.50ft

feet above sea level ·

vs normal for Oct 9+1.2 ft
24 hours±0.00 ft
7 days+0.1 ft
30 days+0.8 ft

Is Calamus Reservoir low right now?

Calamus Reservoir was at 2,234.50 ft on October 9, 2026. That is 1.15 ft above the typical level for October 9, within the normal range. Over the past week the lake has been steady.

Last 12 monthsDaily level Normal range (10–90% of past years)
2,2272,2322,2362,2412,246NovDecJanFebMarAprMayJunJulAugSepOct

Calamus Reservoir on Oct 9 in past years

20252,236.1−1.6
20242,228.5+6.0
20232,228.6+5.9
20222,227.2+7.3
20212,231.2+3.3
20202,233.4+1.1

Level on the same date each year, and how today compares.

Daily levels, last two weeks

DateLevel (ft)Change
Oct 92,234.50±0.00
Oct 82,234.50+0.02
Oct 72,234.48±0.00
Oct 62,234.48+0.03
Oct 52,234.45+0.02
Oct 42,234.43+0.01
Oct 32,234.42+0.04
Oct 22,234.38+0.03
Oct 12,234.35+0.05
Sep 302,234.30+0.06
Sep 292,234.24+0.09
Sep 282,234.15+0.03
Sep 272,234.12+0.05
Sep 262,234.07+0.08

Daily means of the operator's readings (midnight to midnight, local time).

About Calamus Reservoir

10-year range
2,226.7 ft (September 18, 2022) to 2,245.1 ft (May 24, 2019)
Operated by
U.S. Bureau of Reclamation
Data
U.S. Bureau of Reclamation — Calamus Reservoir and Virginia Smith Dam
Datum
NGVD29

Lakes near Calamus Reservoir

Questions

Is Calamus Reservoir low right now?

Calamus Reservoir was at 2,234.50 ft on October 9, 2026. That is 1.15 ft above the typical level for October 9, within the normal range. Over the past week the lake has been steady.

How often is the Calamus Reservoir level updated?

The operator reports once a day, a day or two behind. This page refreshes several times a day; the time of the latest reading is shown next to the level.

Where does this data come from?

U.S. Bureau of Reclamation (Calamus Reservoir and Virginia Smith Dam). Readings are provisional and can be revised.