| Forecast Period | 90% Exceedance Volume | 50% Exceedance Volume | Percent Average | 10% Exceedance Volume | |
| Santa Clara | |||||
| Pine Valley, Nr | April-July | 5.5 | 6.7 | 134 | 8.1 |
| May-July | 4.5 | 5.4 | 135 | 6.8 | |
| Virgin | |||||
| Virgin | April-July | 63 | 72 | 124 | 81 |
| May-July | 41 | 50 | 132 | 59 | |
| Hurricane, Nr | April-July | 59 | 72 | 114 | 87 |
| May-July | 38 | 51 | 124 | 66 | |
| Littlefield | April-July | 63 | 78 | 120 | 95 |
| May-July | 37 | 52 | 121 | 69 |