Meteorological statistics during the past 90 years from 1918 to 2007 at Tohkamachi in Niigata Prefecture, Japan

Meteorological observations have been carried out at Tohkamachi Experimental Station (37° 08' N, 138° 46' E), Niigata Prefecture, since 1918 in order to obtain data for use in disaster prevention and studies on earth science. In this report, we present data such as the air temperature, relative humidity, precipitation, wind speed, snowfall depth, snow depth, and snow-water equivalent obtained over a period of 90 years, i.e., from 1918 to 2007.