Description based on: Vol. 82, no. 1 (Jan. 1979); title from caption.
Also available on the Internet but access is restricted. Policy as of April, 2006: Online data are now free for .gov, .edu, .k12, .mil, and a few other specific domains. For details see http://www.ncdc.noaa.gov/oa/nndc/freeaccess.html
Microfiche. <v.84:no.6>-198 Asheville, N.C. : National Climatic Center. microfiches : negative. Title from header, <Mar. 1991->: Montana, monthly climatological data.