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 -0.144 -0.133 -0.156 2 -0.161 -0.150 -0.173 3 -0.132 -0.121 -0.144 4 -0.083 -0.072 -0.095 5 -0.015 -0.003 -0.026 6 0.071 0.082 0.059 7 0.132 0.144 0.120 8 0.191 0.202 0.179 9 0.167 0.179 0.155 10 0.088 0.100 0.076 11 -0.008 0.004 -0.020 12 -0.104 -0.093 -0.116