| Forecast Period | 90% Exceedance Volume | 70% Exceedance Volume | 50% Exceedance Volume | Percent Average | 30% Exceedance Volume | 10% Exceedance Volume | |
| Santa Clara | |||||||
| Pine Valley, Nr | April-July | 2.3 | 3.3 | 4 | 80 | 5 | 6.8 |
| Virgin | |||||||
| Virgin | April-July | 32 | 42 | 47 | 81 | 58 | 77 |
| Hurricane, Nr | April-July | 26 | 37 | 45 | 71 | 55 | 80 |
| Littlefield | April-July | 25 | 39 | 48 | 74 | 59 | 83 |