Reservoir · Montana · United States · BOR RISE
Lima Reservoir Upstream of Clark Canyon Reservoir
32.4% full
Capacity
92.73 hm³
Volume stored
30 hm³
Vs month average
83% of normal
Coordinates
44.656°N, 112.371°W
Last updated
2026-10-27
Current fill
32.4%vs 7 days ago
+1.0 ppgaining
vs 1 year ago
+0.7 ppyear-over-year
7-day trend
↑rising
Drought context
Storage vs October average
83%of normal
32.4% full on 2026-10-27, against an average of 39.1% for October across 6 years of readings (-6.7 points).
Drought Monitor at this site · 20 October 2026
D0abnormally dry
The ground at Lima Reservoir Upstream of Clark Canyon Reservoir's coordinates falls inside the D0 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Montana drought figures →
Data source: BOR RISE — US Bureau of Reclamation — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-10-27.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 44.656°N, 112.371°W · Open in Google Maps
About Lima Reservoir Upstream of Clark Canyon Reservoir
As of October 27, 2026, Lima Reservoir Upstream of Clark Canyon Reservoir is filled to 32.4% of its total capacity, holding 30.06 hm³ of water out of a maximum 92.73 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has risen by 1.0 percentage points, and it sits close to where it was a year earlier.
Across the readings we hold for Lima Reservoir Upstream of Clark Canyon Reservoir — 1797 data points between October 29, 2021 and October 27, 2026 — the level has ranged from a low of 18.1% (September 5, 2022) to a high of 105.0% (May 28, 2023). On average the reservoir is fullest around May and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It is at 44.656°N, 112.371°W.
Key facts
- Current fill level
- 32.4% of total capacity
- Water stored
- 30.06 hm³
- Total capacity
- 92.73 hm³
- 7-day change
- ▲ 1.0 pp
- Year-on-year
- ▲ 0.7 pp
- Primary use
- Multipurpose
- Operator
- BOR
- Coordinates
- 44.656°N, 112.371°W
- Last updated
- October 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Oct 2026 | 32.4% | 30.06 |
| 26 Oct 2026 | 32.3% | 29.93 |
| 25 Oct 2026 | 32.0% | 29.71 |
| 24 Oct 2026 | 31.9% | 29.6 |
| 23 Oct 2026 | 31.7% | 29.44 |
| 22 Oct 2026 | 31.6% | 29.3 |
| 21 Oct 2026 | 31.5% | 29.2 |
| 20 Oct 2026 | 31.4% | 29.14 |
| 19 Oct 2026 | 31.4% | 29.09 |
| 18 Oct 2026 | 31.3% | 29.03 |
| 17 Oct 2026 | 31.3% | 28.98 |
| 16 Oct 2026 | 31.2% | 28.93 |