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 -0.001 0.014 -0.015 2 -0.032 -0.018 -0.047 3 -0.064 -0.049 -0.078 4 -0.064 -0.049 -0.078 5 -0.058 -0.043 -0.073 6 -0.028 -0.013 -0.042 7 -0.004 0.011 -0.018 8 0.019 0.033 0.004 9 0.047 0.062 0.033 10 0.067 0.082 0.053 11 0.071 0.085 0.057 12 0.046 0.061 0.032