Monthly Streamflow Volume (1000s of Acre-Feet)
Data Updated: Feb 06 2026 at 7:23 AM PST |
| Prob | Feb* | Mar | Apr | May | Jun | Jul |
| 10% | 842.0 | 1370.9 | 1066.5 | 769.8 | 397.8 | 264.0 |
| 25% | 631.4 | 1131.1 | 779.6 | 576.9 | 324.0 | 232.4 |
| 50% | 466.6 | 850.7 | 523.1 | 392.0 | 251.8 | 210.2 |
| 75% | 358.9 | 544.1 | 384.8 | 312.6 | 218.2 | 184.5 |
| 90% | 339.1 | 348.5 | 319.1 | 251.9 | 202.2 | 171.5 |
|
| Mean | 802.6 | 912.1 | 642.8 | 500.1 | 310.7 | 227.3 |
| %Mean | 58.1 | 93.3 | 81.4 | 78.4 | 81.0 | 92.5 |
| Prob | Aug | Sep | Oct | Nov | Dec | Jan |
| 10% | 229.7 | 218.0 | 253.8 | 524.3 | 1196.9 | 1507.2 |
| 25% | 209.5 | 201.2 | 220.3 | 337.0 | 865.0 | 879.6 |
| 50% | 191.6 | 183.0 | 200.4 | 228.4 | 400.4 | 608.8 |
| 75% | 171.1 | 167.7 | 181.5 | 204.3 | 273.0 | 351.2 |
| 90% | 161.1 | 158.1 | 164.3 | 179.1 | 208.4 | 259.9 |
|
| Mean | 201.8 | 194.4 | 227.4 | 304.7 | 543.0 | 700.7 |
| %Mean | 94.9 | 94.1 | 88.1 | 75.0 | 73.7 | 86.9 |
| Note 1: %Mean is the "Median forecast monthly value (50%)" divided by the "monthly mean" (displayed as a %) |
| Note 2: For current month, graphic represents remaining forecast only, text represents observed + remaining forecast. |
