This document summarizes the differences between weather and climate, defines meteorology and climatology, and describes common weather instruments. It explains that weather refers to short-term atmospheric conditions in a place, while climate describes average conditions over a long period of time. It then lists and describes common weather instruments like thermometers, barometers, anemometers, and rain gauges; and explains their purposes in measuring temperature, air pressure, wind speed, humidity, and precipitation. It concludes by identifying PAGASA as the Philippine weather station responsible for weather forecasts and advisories.