Weather data, research and learning

Historical weather data, climate trends, Sky Watchers, meteorology for classrooms.

Services and information

Historical climate data

Historical weather data, radar images, climate datasets.

Climate cycles and trends

Bulletin of climate trends and variations.

Top 10 weather stories

Top weather stories each year, historical weather events.

Climate research

Climate research, data, modelling, analysis, science, publications.

El Niño

El Niño

La Niña

La Nina

Sky Watchers

Interactive meteorology for students and teachers, lesson plans, ideas for activities.

Climate impacts and outlook

Gulf of Maine, Great Lakes and Saint-Lawrence, Alaska and northwestern Canada.

What we are doing

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