The charts on this page depict the progression of the Solar Cycle. The charts and tables are updated by the Space Weather Prediction Center monthly using the latest ISES predictions. Observed values are initially the preliminary values which are replaced with the final values as they become available.

Description of Solar Cycle Progression displays
Table of Recent Solar Indices (Preliminary) of Observed Monthly Mean Values
Table of Predicted Values With Expected Ranges -- High Prediction Table -- Low Prediction Table

Solar Cycle 24 Prediction Issued April 2007, updated May 2008

For additional information or comments, contact SWPC.CustomerSupport@noaa.gov

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