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 -0.036 -0.018 -0.054 2 -0.039 -0.021 -0.057 3 -0.027 -0.009 -0.045 4 -0.025 -0.007 -0.043 5 -0.027 -0.009 -0.045 6 -0.012 0.006 -0.030 7 -0.002 0.016 -0.020 8 0.011 0.029 -0.007 9 0.034 0.052 0.016 10 0.064 0.082 0.046 11 0.058 0.076 0.040 12 0.002 0.019 -0.016