Summer Weather Data
This should give you an idea as to what you should expect for conditions on the summit during Summer months.
| June | July | August | September | |
|---|---|---|---|---|
| Normal Daily Max °F | 50.3 | 54.1 | 53.0 | 46.1 |
| Highest Daily Max °F | 72 | 71 | 72 | 69 |
| Normal Daily Min °F | 38.5 | 43.3 | 42.1 | 34.6 |
| Lowest Daily Min °F | 8 | 24 | 20 | 9 |
| Mean Number of Days with Heavy Fog | 25.0 | 27.2 | 27.3 | 258 |
| Mean Wind Speed MPH | 27.3 | 25.7 | 24.7 | 28.7 |
| Peak Gust MPH | 136 | 154 | 142 | 174 |
| Normal Precipitation " | 8.36 | 8.02 | 8.08 | 8.55 |
| Days with => .01" | 16.0 | 15.9 | 15.4 | 15.2 |
| Normal Snowfall " | 1.3 | Trace | 0.2 | 2.2 |
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