The long-term average value of a meteorological element for a certain area. For example, "temperatures are normal for this time of year" Usually averaged over 30 years.
« Back to Glossary Index Tweet Vote on HN Absolutely stunning supercell developed just prior to sunset as I was […]
« Back to Glossary Index Tweet Vote on HN Nature is definitely something majestic and completely unpredictable. Tornadoes are probably […]