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 -0.097 -0.074 -0.120 2 -0.136 -0.113 -0.159 3 -0.110 -0.087 -0.132 4 -0.021 0.002 -0.043 5 0.076 0.099 0.054 6 0.079 0.101 0.056 7 0.053 0.076 0.030 8 0.040 0.063 0.018 9 0.010 0.032 -0.013 10 0.050 0.072 0.027 11 0.069 0.092 0.046 12 -0.014 0.009 -0.036