Official Meteorological Data in Japan since the start of JMA Observatories.
Tables of Monthly Climate Statistics
Typhoon/Cyclone Tracks and Intensities since 1907 (National Institute Information, Japan).
Digital Typhoon: Record of Past Typhoon/Cyclones
The Monsoon Asia Hydro-Atmosphere Scientific Research and Prediction Initiative (MAHASRI) at Tokyo Metropolitan University.
Research Center for Climatology
Daily Weather Mapping of Japan in Historical Times (Created by M.Yoshimura: Emeritus Professor at Yamanashi University)
Historical Weather Database on the Web
Historical references and documentary evidence (NOAA/NCDC USA).
List of Historical and Documentary Data-sets by Title and Investigator
Tempearture and Pressure Data in Japan during the 19th century (Climatic Research Unit, UEA, UK).
International ACRE (Atmospheric Circulation Reconstructions over the Earth) Initiative.