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Historical Walla Walla Weather Data
| Record High Temp (°F) |
Normal High Temp (°F) |
Normal Low Temp (°F) |
Record Low Temp (°F) |
Normal Monthly Precipitation (in.) |
Normal Monthly Snowfall (in.) |
|
|---|---|---|---|---|---|---|
| January | 67 | 40.6 | 28.8 | -4 | 2.25 | 4 |
| February | 75 | 46.9 | 32.5 | -13 | 1.97 | 5 |
| March | 77 | 56 | 36.9 | 4 | 2.2 | 1.1 |
| April | 87 | 64.1 | 41.3 | 29 | 1.83 | T |
| May | 99 | 72 | 47.6 | 34 | 1.95 | 0 |
| June | 107 | 80.3 | 54.3 | 39 | 1.15 | 0 |
| July | 112 | 89.9 | 60.7 | 46 | 0.73 | T |
| August | 109 | 89.1 | 61.2 | 42 | 0.84 | 0 |
| September | 99 | 79.3 | 52.9 | 32 | 0.83 | 0 |
| October | 87 | 65.8 | 43.6 | 15 | 1.77 | 0.2 |
| November | 81 | 50.1 | 36 | -11 | 2.85 | 2.3 |
| December | 65 | 40.8 | 29.3 | -14 | 2.51 | 4.7 |
