“How often does it really rain?”

By Kevin E. Trenberth* and Yongxin Zhang**, Published Online: 2 August 2017 *National Center for Atmospheric Research1 (NCAR) Boulder, CO, USA https://doi.org/10.1175/BAMS-D-17-0107.1 Abstract Hourly precipitation observations at 0.25° allow much improved estimates of the frequency of rain or snow. Precipitation