Weather Glossary - Y

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Year

The interval required for the earth to complete one revolution around the sun. A sidereal year, which is the time it takes for the earth to make one absolute revolution around the sun, is 365 days, 6 hours, 9 minutes and 9.5 seconds. The calendar year begins at 12 o'clock midnight local time on the night of December 31st-January 1st. Currently, the Gregorian calendar of 365 days is used, with 366 days every four years, a leap year. The tropical year, also called the mean solar year, is dependent on the seasons. It is the interval between two consecutive returns of the sun to the vernal equinox. In 1900, that took 365 days, 5 hours, 48 minutes, and 46 seconds, and it is decreasing at the rate of 0.53 second per century. This decrease is due to the slow precession of the Earth's axis of rotation.

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New Agriculture Minister, Senator Bridget McKenzie, considers practical drought responses

18:48 EST

Australia's new agriculture minister has distanced herself from the National Party leader's policy to pray for rain.

Japan sets new May temperature record

18:14 EST

A brief burst of early-season heat in northern Japan set a new national maximum temperature record for the month of May on Sunday.

Snowy end to autumn transforms Australia's ski resorts

11:57 EST

Australia's alps are being covered with fresh snow just two weeks out from the start of the 2019 ski season.