| 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 | 4.2 | 4.9 | 5.7 | 114 | 6.6 | 7.7 |
| Virgin | |||||||
| Virgin | April-July | 48 | 54 | 59 | 102 | 65 | 73 |
| Hurricane, Nr | April-July | 48 | 53 | 58 | 92 | 65 | 73 |
| Littlefield | April-July | 55 | 62 | 67 | 103 | 72 | 80 |