Welcome to the climate and weather data research guide!
If you're not sure where to start, one of the best sites to consult is NOAA's Frequently Asked Questions page. This page explains how to find climate and weather data and provides links to most of the major databases.
The next best place to start is the National Climate Data Center (NCDC), a major data repository for climate data in the U.S.
If you're looking for more specific regional datasets in the United States the best place to start is the NOAA Regional Climate Centers web site.
Alternatively, if you're looking specifically at water data (groundwater, aquifers, etc.) try the U.S. Geological Service's (USGS) National Water Information System (NWIS).
If your climate or weather data needs are Northfield specific, try the Carleton College Weather Database.
This guide developed by Maddy Menard '17 and Ann Zawistoski.