The following table summarizes the status of Arizona’s key surface water supplies for the month of March.
| 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|
| COLORADO RIVER SYSTEM | |||||
| Lake Powell (% full) | 25 | 38 | 49 | 38 | 54 |
| Lake Mead (% full) | 34 | 41 | 44 | 41 | 41 |
| Total Colorado System (% full) | 36 | 45 | 52 | 45 | 53 |
| Elevation (Lake Mead; ft msl) | 1,066 | 1,087 | 1,096 | 1,089 | 1,088 |
| DCP “Tier Zero” Declaration Elevation (ft msl) | 1,090 | 1,090 | 1,090 | NA | NA |
| First Shortage Declaration Elevation (ft msl) | 1,075 | 1,075 | 1,075 | 1,075 | 1,075 |
| Elevation (Lake Powell; ft msl) | 3,526 | 3,570 | 3,602 | 3,571 | 3,613 |
| 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) | 100 | 73 | 88 | 123 | 68 |
| Upper Basin Current Snowpack (% of average) | 92 | 82 | 101 | 132 | 73 |
| SALT / VERDE RIVER SYSTEM | |||||
| Salt River Reservoirs (% full) | 77 | 83 | 85 | 65 | 65 |
| Verde River Reservoirs (% full) | 37 | 30 | 64 | 98 | 30 |
| Total Salt / Verde System (% full) | 72 | 77 | 82 | 69 | 61 |
| Salt/Verde Water Year Precipitation to Date (% of average) | 73 | 47 | 95 | 124 | 32 |
| Salt/Verde Current Snowpack Level (% of average) | 92 | 21 | 46 | 94 | 7 |
| CAP STORAGE | |||||
| Lake Pleasant (% full) | 85 | 92 | 91 | 92 | 87 |
Data compiled from Central Arizona Water Conservation District, U.S. Bureau of Reclamation, and Salt River Project