[dazmiller]

http://www.programmableweb.com/api/noaa-climate-data-online

https://catalog.data.gov/dataset/u-s-hourly-precipitation-da...

http://www.wunderground.com/weather/api/d/docs

http://www.ncdc.noaa.gov/cdo-web/webservices/ncdcwebservices

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/

to quickly publish your own api.

[ob1gman]

Good call! Didn't think about importing them into a lightweight database.

[agilevic]

Actually here is a more detailed writeup http://apievangelist.com/2015/11/04/slashdb-created-the-rank...

[agilevic]

I recently did something similar with corporate accountability data. Here's how: http://www.slashdb.com/2015/11/14/slashdb-api-evangelist-twi...