« Back to Glossary IndexThe amount of water vapor in the atmosphere.Related Articles:'Tourist weather' breaking to possible stormsFire Spread Prediction for Saturday 4 January 2020 There are a number of danger...Big fire day unfortunately - and it seems a high temperature day with low humidity 31st December 2019Bushfires Western Sydney Winamalee 10th September 2013Severe Storms smash Sydney Suburbs 14th January 2016« Back to Glossary Index