Wolfram Data Repository
Immediate Computable Access to Curated Contributed Data
US city temperatures
NYC Emergency Response Incidents from 2013 to 2015
Ozone concentrations by city and date
New York City rat sighting service requests, 2010-2016
Data on family income and costs of housing and transportion in U.S. cities
2006-2010 data on daytime commuting patterns in the U.S.