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Historical Seattle 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 | 64 | 45.8 | 35.9 | 0 | 5.13 | 4.9 |
| February | 70 | 49.5 | 37.2 | 1 | 4.18 | 1.6 |
| March | 78 | 53.2 | 39.1 | 11 | 3.75 | 1.3 |
| April | 85 | 58.2 | 42.1 | 29 | 2.59 | 0.1 |
| May | 93 | 64.4 | 47.2 | 28 | 1.78 | T |
| June | 96 | 69.6 | 51.7 | 38 | 1.49 | 0 |
| July | 100 | 75.3 | 55.3 | 43 | 0.79 | T |
| August | 99 | 75.6 | 55.7 | 44 | 1.02 | 0 |
| September | 98 | 70.2 | 51.9 | 35 | 1.63 | T |
| October | 89 | 59.7 | 45.7 | 28 | 3.19 | 0 |
| November | 74 | 50.5 | 39.9 | 6 | 5.9 | 1.1 |
| December | 64 | 45.5 | 35.9 | 6 | 5.62 | 2.4 |
