Climate normals and volcanic unrest
Weather & Science Observer
Last updated 5/5/2021 at 8:15am
Climatologists with the National Oceanic and Atmospheric Administration’s office of National Centers for Environmental Information are recalculating the nation’s Climate Normals covering the span of 1991-2020. This process occurs every 30 years.
It started in 1935 when the International Meteorological Organization, now called World Meteorological Organization, asked its nation members to c...