| 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 | 2.5 | 4.2 | 4.8 | 96 | 5.5 | 9.8 |
| Virgin | |||||||
| Virgin | April-July | 33 | 49 | 58 | 100 | 70 | 99 |
| Hurricane, Nr | April-July | 26 | 45 | 55 | 87 | 68 | 102 |
| Littlefield | April-July | 26 | 50 | 63 | 97 | 80 | 124 |