Overwater

NCDC provides Unedited Local Climatological Data (ULCD) at ~1,600 U.S.

Locations and Quality Controlled Local Climatological Data (QCLCD) at ~700 U.S. locations. Consists of hourly, daily, and monthly summaries.

https://www.ncdc.noaa.gov/?prior=N

https://www.ncdc.noaa.gov/

Overwater Data

National Data Buoy Center (NDBC)

http://www.ndbc.noaa.gov/

National Oceanographic Data Center (NODC)

https://www.nodc.noaa.gov/BUOY/