December 11, 2025
Category: AZ Surface Water Status
The following table summarizes the status of Arizona’s key surface water supplies for the month of December.
| 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|
| COLORADO RIVER SYSTEM | |||||
| Lake Powell (% full) | 28 | 38 | 37 | 24 | 28 |
| Lake Mead (% full) | 32 | 33 | 34 | 28 | 34 |
| Total Colorado System (% full) | 40 | 42 | 42 | 33 | 37 |
| Lake Mead Elevation (ft msl) | 1,060 | 1,062 | 1,067 | 1,044 | 1,065 |
| Tier 1 Shortage Declaration Elevation (ft msl) | 1,075 | 1,075 | 1,075 | 1,075 | 1,075 |
| Tier 2a Shortage Declaration Elevation (ft msl) | 1,050 | 1,050 | 1,050 | 1,050 | 1,050 |
| Tier 2b Shortage Declaration Elevation (ft msl) | 1,045 | 1,045 | 1,045 | 1,045 | 1,045 |
| Tier 3 Shortage Declaration Elevation (ft msl) | 1,025 | 1,025 | 1,025 | 1,025 | 1,025 |
| Lake Powell Elevation (ft msl) | 3,543 | 3,574 | 3,570 | 3,527 | 3,540 |
| Minimum Power Generation Elevation (ft msl) | 3,490 | 3,490 | 3,490 | 3,490 | 3,490 |
| Upper Basin Water Year Precipitation to Date (% of average) | 111 | 92 | 81 | 97 | 95 |
| Upper Basin Current Snowpack (% of average) | 74 | 90 | 75 | 115 | 73 |
| SALT / VERDE RIVER SYSTEM | |||||
| Salt River Reservoirs (% full) | 54 | 75 | 85 | 68 | 72 |
| Verde River Reservoirs (% full) | 74 | 52 | 52 | 38 | 34 |
| Total Salt / Verde System (% full) | 57 | 72 | 81 | 64 | 67 |
| Salt/Verde Water Year Precipitation to Date (% of average) | 182 | 42 | 33 | 130 | 68 |
| Salt/Verde Current Snowpack Level (% of average) | 69 | 8 | 25 | 35 | 62 |
| CAP STORAGE | |||||
| Lake Pleasant (% full) | 53 | 60 | 68 | 61 | 71 |
Data compiled from Central Arizona Water Conservation District, U.S. Bureau of Reclamation, and Salt River Project
