Find your station
Search by station name or enter its three-character SSC code.
Daily weather types · Global coverage
Weather patterns, made comparable.
The Spatial Synoptic Classification organizes each day into an intuitive weather type, connecting local conditions with climate variability, long-term change, health, and environmental impacts.
—stations
—countries
—reporting in 2026
1940s–2026longest station records
Current SSC
See recent U.S. classifications and the forecast for today and tomorrow.
Analyze change
Explore frequencies, climatology, record years, trends, precipitation, and air quality.
Global station coverage
Click a station to open its visual calendar. Colors indicate data status through September 30, 2026.
What is an SSC type?
Each type describes a holistic combination of temperature, moisture, pressure, wind, and cloud cover relative to a station and season.
Learn about DP, DM, DT, MP, MM, MT, and TR →For researchers
Daily classifications are freely available for noncommercial research with appropriate credit.
Interpret and download the data →Applications
SSC research spans climate variability, human health, air quality, precipitation, tourism, and ecosystem impacts.
Browse SSC research →