MRCC maintains climate data for the states of Illinois, Indiana, Iowa, Kentucky, Michigan, Minnesota, Missouri, Ohio, and Wisconsin. The example provided here uses wget to download all available hourly data for Yellowknife A, from 1998 to 2008, in. MRCC is a cooperative program between NCEI and Purdue University in West Lafayette, IN. For Canada, you can download historical data by city in bulk csv or xml files from Environment & Climate Change Canada. One problem: most of the data is in HTML tables instead of the CSV format that we like. WU has a bunch of weather data (current and historical) from established weather stations, like at airports, and home stations setup by hobbyists. Midwestern Regional Climate Center (MRCC): youll be able to set custom alerts, view data history, share devices with. Weather Underground is a useful site and a fun place for weather enthusiasts. NCEI is our nation's primary authority for environmental data and maintains one of the world's largest archives of atmospheric, coastal, geophysical, and oceanic data. National Centers for Environmental Information (NCEI): Weather Service Forecast Offices (including NWS Chicago) are responsible for archiving daily weather conditions for their areas of responsibility and then transmitting that information to the climate centers, where the official archives for weather observations are maintained. These centers are responsible for monitoring and maintaining a large number of data sets for the National Weather Service and other organizations. The algorithm then scrapes the historical hourly data from. The National Centers for Environmental Information and the Midwestern Regional Climate Center fill various requests for climate data. The user inputs a specified historical time period, and up to 5 zip codes into a base excel file. How to Obtain Official Historical Climate Data

Wunderground download historical data