http://www.programmableweb.com/api/noaa-climate-data-online http://www.programmableweb.com/api/noaa-climate-data-online https://catalog.data.gov/dataset/u-s-ho

http://www.programmableweb.com/api/noaa-climate-data-online http://www.programmableweb.com/api/noaa-climate-data-online https://catalog.data.gov/dataset/u-s-hourly-precipitation-data https://catalog.data.gov/dataset/u-s-hourly-precipitation-da... http://www.wunderground.com/weather/api/d/docs http://www.wunderground.com/weather/api/d/docs http://www.ncdc.noaa.gov/cdo-web/webservices/ncdcwebservices http://www.ncdc.noaa.gov/cdo-web/webservices/ncdcwebservices https://data.noaa.gov/dataset/u-s-15-minute-precipitation-data https://data.noaa.gov/dataset/u-s-15-minute-precipitation-da... Note some maybe datasets, so you may have to import them into a db and then just use something like http://www.slashdb.com/ http://www.slashdb.com/ to quickly publish your own api.