As part of the McMurdo Dry Valleys Long Term Ecological Research program (MCM LTER), meteorological data is collected from various locations throughout the McMurdo Dry Valleys of Antarctica. This package contains monthly averages from the Beacon Valley Meteorological Station (BENM), located in Beacon Valley. These data were derived from 15-minute data. BENM was established in January 2000 and removed in December 2012.