Like the meteorological seasons, they are grouped into three-monthly periods, though they are offset by about 20 days. The seasons start on the longest day of the year (summer solstice), shortest day of the year (winter solstice), and the days when daylight and darkness are of equal length (equinoxes).įigures: Images representing the equinox (top), winter solstice (left) and summer solstice (right). Huh?!Ī definition that dates back a couple thousand years is the “astronomical seasons” and is the most common seasonal definition currently. This means that seasons begin at different times in different parts of the country. Summer: Temperature permanently above 10☌Īutumn: Temperature permanently below 10☌ They are defined by the “permanent” exceedance of certain temperature thresholds. Similarly, in countries like Sweden and Finland, seasonal changes are a blurry line thanks to their proximity to the north pole. This means that locations with extreme climates, such as Tibet, can have one season year-round, based on this definition. Summer: Period when temperatures are above 22☌ on average Winter: Period when temperatures are below 10☌ on average Post-monsoon: October 1st – November 30thĪ common method for season determination in China is using average temperature thresholds to define seasons. Winter: December 1st – February 28th/29th (depending on leap-year) In India, the seasons are similar to the meteorological seasons, but monsoon considerations have been inputted. Interestingly, Aboriginal nations around the country have many different seasonal interpretations, ranging from 2-6 distinct seasons. The Aboriginal people of D’harawal, the nation that encompasses part of the Sydney basin and slightly south, define their own six seasons based on the seasonal adapting of flora and fauna. Summer: December 1st – February 28th/29th (depending on leap-year) In Australia, for example, June, July, and August are the coldest months of the year. These are known as the “meteorological seasons” and are based on the annual temperature cycle. Here in Australia as well as New Zealand, Pakistan and Russia, people tend to group whole months together and call them seasons, as defined by our 12-month calendar. Turns out, nobody really agrees on when the seasons start and end. And you’ve probably felt it too, if you happen to be in the southern or eastern part of the country, like when we saw a QLD town dropping below freezing, cold fronts crossing the country, or thundersnow gracing the alps. You’ve probably heard that winter is finally here, or less likely, it’s ‘just around the corner’. , 5:20PM UTC The winter conundrum: June 1st, June 21st, or other? Unfortunately for them it’s going to turn wintery as the cold front barrels through overnight into tomorrow, increasing cloud cover and showers, with maximum temperatures forecast to reach only 11 and 12☌ from Monday to at least Friday. But for those who live in Melbourne it’s a real treat. So, 7 and 8 hours of sunshine for three days in Melbourne isn’t newsworthy to sunny Sydney. Source: Bureau of Meteorology.īesides two days, Sydney has had over 9 hours of sunshine each day since Friday the 9th. The following map shows the June average sunshine hours across Australia. During June, Melbourne averages about 3.5 hours of sunshine each day compared to Sydney’s average of close to 6 hours. So, what makes people think that? That would be because of the cloudier conditions with more days of light rain and drizzle during the cooler months. Melbourne is often thought of as a rainier place than Sydney, even though it receives only half the average annual rainfall of Sydney each year. Image: Himawari-9 visible satellite imagery and BoM radar at 12pm Sun 18th This is very fortunate given southeast Australia is currently between two cold fronts. Today marks a third sunny day with a forecast of 8 hours of sunshine but a cooler top of 15☌. On Friday, people were pleasantly surprised with a glorious 8.8 hours of sunshine with a top of 16.5☌. Yesterday, despite the howling wind, Melbourne basked in 7.4 hours of sunshine with a top of 17.6☌. Melbourne has just experienced some wonderful sunny June days. Today, 1:28PM UTC Melbourne enjoys some sunny June days
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