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 0.044 0.069 0.018 2 -0.006 0.019 -0.032 3 -0.097 -0.072 -0.123 4 -0.109 -0.083 -0.134 5 -0.125 -0.100 -0.151 6 -0.046 -0.021 -0.072 7 0.047 0.072 0.021 8 0.057 0.083 0.032 9 0.061 0.087 0.036 10 0.048 0.073 0.022 11 0.050 0.076 0.025 12 0.077 0.103 0.052