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 -0.138 -0.103 -0.173 2 -0.097 -0.062 -0.131 3 -0.031 0.004 -0.066 4 0.026 0.060 -0.009 5 0.052 0.085 0.019 6 0.049 0.083 0.015 7 0.014 0.049 -0.021 8 0.050 0.084 0.016 9 0.112 0.146 0.079 10 0.073 0.105 0.040 11 -0.026 0.008 -0.060 12 -0.083 -0.049 -0.118