SolarHam.com launched on March 15, 2006 with the purpose of providing real time Space Weather news and data from various sources, all in one location for easy navigation.
To calculate the R12 index for July 2020, add half of the January 2020 value plus the sum of the February through December 2020 values plus half of the January 2021 value and then by dividing that sum by twelve.
Notice: The geomagnetic forecast below is provided by the NOAA Space Weather Prediction Center (SWPC) and is based on the latest available data and modelling.