| Los Prietos 045203 Cntrl Cst Mtns & Vlys 1020' | September | October | November |
| Minimum Humidity | |||
| Mean monthly minimum RH% | 25 | 26 | 28 |
| Days 1-10 mean minimum RH% | 26 | 26 | 28 |
| Days 10-20 mean minimum RH% | 22 | 23 | 28 |
| Days 20-30 mean minimum RH% | 28 | 28 | 29 |
| Days 1-10 lowest mean minimum RH% | 11 | 15 | 23 |
| Days 10-20 lowest mean minimum RH% | 11 | 13 | 18 |
| Days 20-30 lowest mean minimum RH% | 19 | 11 | 20 |
| Days 1-10 highest mean minimum RH% | 35 | 37 | 35 |
| Days 10-20 highest mean minimum RH% | 30 | 30 | 42 |
| Days 20-30 highest mean minimum RH% | 45 | 36 | 44 |
| Maximum Humidity | |||
| Mean monthly maximum RH% | 84 | 80 | 83 |
| Days 1-10 mean maximum RH% | 84 | 77 | 83 |
| Day 10-20 mean maximum RH% | 84 | 79 | 84 |
| Days 20-30 mean maximum RH% | 85 | 82 | 82 |
| Days 1-10 lowest mean maximum RH% | 57 | 55 | 63 |
| Days 10-20 lowest mean maximum RH% | 64 | 64 | 69 |
| Days 20-30 lowest mean maximum RH% | 68 | 62 | 71 |
| Days 1-10 highest mean maximum RH% | 95 | 95 | 93 |
| Days 10-20 highest mean maximum RH% | 99 | 91 | 94 |
| Days 20-30 highest mean maximum RH% | 95 | 91 | 99 |
| Maximum temperatures | |||
| Mean monthly maximum temperature | 92 | 85 | 76 |
| Days 1-10 mean maximum temperature | 95 | 89 | 80 |
| Days 10-20 mean maximum temperature | 91 | 86 | 74 |
| Days 20-30 mean maximum temperature | 90 | 81 | 72 |
| Days 1-10 lowest mean maximum temperature | 74 | 79 | 70 |
| Days 10-20 lowest mean maximum temperature | 78 | 78 | 64 |
| Days 20-30 lowest mean maximum temperature | 76 | 72 | 63 |
| Ddays 1-10 highest mean maximum temperature | 104 | 104 | 88 |
| Days 10-20 highest mean maximum temperature | 103 | 98 | 85 |
| Days 20-30 highest mean maximum temperature | 102 | 92 | 86 |
| Highest daily maximum temperature | 112 | 111 | 99 |
| Lowest daily maximum temperature | 68 | 56 | 55 |
| Mimimum temperatures | |||
| Mean monthly minimum temperature | 54 | 50 | 44 |
| Days 1-10 mean minimum temperature | 55 | 53 | 46 |
| Days 10-20 mean minimum temperature | 53 | 49 | 44 |
| Days 20-30 mean minimum temperature | 54 | 48 | 42 |
| Days 1-10 lowest mean minimum temperature | 50 | 47 | 40 |
| Days 10-20 lowest mean minimum temperature | 48 | 43 | 35 |
| Days 20-30 lowest mean minimum temperature | 49 | 39 | 34 |
| Days 1-10 highest mean minimum temperature | 65 | 66 | 54 |
| Days 10-20 highest mean minimum temperature | 65 | 60 | 48 |
| Days 20-30 highest mean minimum temperature | 61 | 58 | 47 |
| Highest daily minimum temperature | 82 | 70 | 64 |
| Lowest daily minimum temperature | 36 | 32 | 26 |
| 1300P Wind Speed | |||
| Days 1-10 mean wind speed | 6.3 | 5.7 | 4.9 |
| Days 10-20 mean wind speed | 6.2 | 5.7 | 4.5 |
| Days 20-30 mean wind speed | 5.5 | 5 | 4.5 |
| Days 1-10 max average wind speed | 10.1 | 9.3 | 8.7 |
| Days 10-20 max average wind speed | 9.6 | 8.1 | 8.6 |
| Days 20-30 max average wind speed | 9 | 7.6 | 7.3 |
| Period of Record: Temp and Wind 23 years and RH 5 years | |||