2011 precipitation at SeaTac Airport

December 2011 precipitation at SeaTac Airport of 2.24 inches was 38% of the 1948-2010 63-year mean of 5.86 inches. It was the 4th driest in the past 64 years. The 3 drier Decembers were 1976 with 1.86 inches, 1978 with 1.37 inches, and 1985 with 1.78 inches. The 2011 annual total at SeaTac of 37.06 inches was -1.14 inches below the 1949-2010 62-year mean total of 38.20 inches.

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