Weather stations of Montana, obtained from the Meso West web site at ftp://ftp.met.utah.edu/pub/mesonet/data.
MesoWest (http://www.met.utah.edu/mesowest) is a cooperative project between researchers at the University of Utah, forecasters at the Salt Lake City National Weather Service Office, the NWS Western Region Headquarters, and personnel of participating agencies, universities, and commercial firms. The goal of this project is to provide access to current weather observations in the western states. Support for this project is being provided by the National Weather Service.
MesoWest relies upon weather observing networks that are managed by federal, state, and local agencies and private firms. Weather observations of temperature, relative humidity, wind speed and direction, precipitation, and other weather parameters are available at thousands of locations across the United States.