https://www.ncdc.noaa.gov/cdo-web/

Climate Data Online (CDO) provides free access to NCDC's archive
of global historical weather and climate data in addition to station history
information. These data include quality controlled daily, monthly, seasonal, and
yearly measurements of temperature, precipitation, wind, and degree days as well
as radar data and 30-year Climate Normals. Customers can also order most of
these data as certified hard copies for legal use.