The average seasonal cycle of mean sea level. The values are in meters. Column values are the Month, Relative Sea Level, Upper 95% Confidence Interval, and Lower 95% Confidence Interval. Product of NOAA’s National Ocean Service / Center for Operational Oceanographic Products and Services (CO-OPS) Month Water Level Upper95% Lower95% 1 0.167 0.180 0.154 2 0.106 0.119 0.093 3 0.051 0.064 0.038 4 -0.026 -0.013 -0.040 5 -0.103 -0.090 -0.116 6 -0.175 -0.161 -0.188 7 -0.180 -0.167 -0.193 8 -0.159 -0.146 -0.172 9 -0.087 -0.074 -0.100 10 0.043 0.056 0.030 11 0.150 0.163 0.136 12 0.213 0.227 0.200