| Oak Opening 044717 Sierra Foothills 3240' | June | July | August |
| Minimum Humidity | |||
| Mean monthly minimum RH% | 34 | 30 | 27 |
| Days 1-10 mean minimum RH% | 39 | 31 | 26 |
| Days 10-20 mean minimum RH% | 33 | 30 | 29 |
| Days 20-30 mean minimum RH% | 31 | 28 | 28 |
| Days 1-10 lowest mean minimum RH% | 22 | 15 | 18 |
| Days 10-20 lowest mean minimum RH% | 19 | 18 | 15 |
| Days 20-30 lowest mean minimum RH% | 20 | 20 | 18 |
| Days 1-10 highest mean minimum RH% | 65 | 45 | 35 |
| Days 10-20 highest mean minimum RH% | 53 | 42 | 43 |
| Days 20-30 highest mean minimum RH% | 47 | 36 | 37 |
| Maximum Humidity | |||
| Mean monthly maximum RH% | 68 | 60 | 57 |
| Days 1-10 mean maximum RH% | 75 | 63 | 53 |
| Day 10-20 mean maximum RH% | 67 | 60 | 58 |
| Days 20-30 mean maximum RH% | 63 | 58 | 60 |
| Days 1-10 lowest mean maximum RH% | 49 | 34 | 34 |
| Days 10-20 lowest mean maximum RH% | 42 | 45 | 32 |
| Days 20-30 lowest mean maximum RH% | 48 | 39 | 39 |
| Days 1-10 highest mean maximum RH% | 100 | 91 | 75 |
| Days 10-20 highest mean maximum RH% | 92 | 75 | 81 |
| Days 20-30 highest mean maximum RH% | 86 | 83 | 86 |
| Maximum temperatures | |||
| Mean monthly maximum temperature | 83 | 89 | 90 |
| Days 1-10 mean maximum temperature | 78 | 88 | 92 |
| Days 10-20 mean maximum temperature | 83 | 89 | 90 |
| Days 20-30 mean maximum temperature | 86 | 90 | 89 |
| Days 1-10 lowest mean maximum temperature | 64 | 78 | 84 |
| Days 10-20 lowest mean maximum temperature | 73 | 83 | 80 |
| Days 20-30 lowest mean maximum temperature | 73 | 80 | 80 |
| Ddays 1-10 highest mean maximum temperature | 90 | 102 | 99 |
| Days 10-20 highest mean maximum temperature | 96 | 100 | 100 |
| Days 20-30 highest mean maximum temperature | 94 | 97 | 97 |
| Highest daily maximum temperature | 102 | 114 | 106 |
| Lowest daily maximum temperature | 52 | 68 | 70 |
| Mimimum temperatures | |||
| Mean monthly minimum temperature | 60 | 66 | 66 |
| Days 1-10 mean minimum temperature | 56 | 65 | 68 |
| Days 10-20 mean minimum temperature | 60 | 67 | 66 |
| Days 20-30 mean minimum temperature | 63 | 67 | 64 |
| Days 1-10 lowest mean minimum temperature | 45 | 52 | 59 |
| Days 10-20 lowest mean minimum temperature | 52 | 53 | 60 |
| Days 20-30 lowest mean minimum temperature | 55 | 58 | 54 |
| Days 1-10 highest mean minimum temperature | 67 | 73 | 74 |
| Days 10-20 highest mean minimum temperature | 72 | 74 | 73 |
| Days 20-30 highest mean minimum temperature | 72 | 74 | 72 |
| Highest daily minimum temperature | 81 | 86 | 86 |
| Lowest daily minimum temperature | 35 | 30 | 43 |
| 1300P Wind Speed | |||
| Days 1-10 mean wind speed | 6 | 7 | 7 |
| Days 10-20 mean wind speed | 7 | 7 | 7 |
| Days 20-30 mean wind speed | 7 | 7 | 7 |
| Days 1-10 max average wind speed | 10 | 10 | 9 |
| Days 10-20 max average wind speed | 9 | 9 | 9 |
| Days 20-30 max average wind speed | 10 | 10 | 10 |
| Period of Record: 23 years | |||