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 -0.100 -0.089 -0.111 2 -0.101 -0.090 -0.112 3 -0.069 -0.058 -0.080 4 -0.037 -0.026 -0.048 5 0.003 0.014 -0.008 6 0.036 0.047 0.025 7 0.042 0.053 0.031 8 0.071 0.082 0.060 9 0.108 0.119 0.097 10 0.079 0.090 0.068 11 0.022 0.033 0.011 12 -0.055 -0.044 -0.066