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 -0.124 -0.101 -0.148 2 -0.106 -0.083 -0.130 3 -0.063 -0.040 -0.087 4 0.006 0.030 -0.018 5 0.054 0.077 0.030 6 0.020 0.043 -0.004 7 -0.041 -0.017 -0.065 8 0.000 0.024 -0.023 9 0.159 0.182 0.135 10 0.136 0.160 0.112 11 0.033 0.057 0.010 12 -0.073 -0.049 -0.096