Friday, 12 September 2014

Temperatures drop after a warm few days

Warmer spring temperatures finally arrived in Sydney on Tuesday. It reached 24.2C at Sydney Airport during Tuesday afternoon, the warmest temperature in over a week. Unfortunately, as predicted, rain made an unwelcome return on Wednesday. The Airport saw 5.6mm recorded, with most of it falling around 6am. Temperatures still managed to get above 23C during the day though.

Yesterday and today have remained dry. It's been a long time coming, but that makes it the first instance of two consecutive days without rain since August 14 and 15.

In addition to the dry conditions, yesterday also continued the spring warmth from the two days prior. This time temperatures at the Airport climbed to 26.5C. May 22 and 23 also recorded a daily maximum at that figure, but to find a temperature higher you have to go back to the 30.1C recording from April 24, which is just over four and a half months ago.

A gradual southerly change occurred late yesterday evening, dropping temperatures. As a result, today has been much cooler. In fact, today's maximum of 16.8C is almost 10C colder than yesterday. The 9.7C difference makes it the third biggest drop between two consecutive days so far this year. The highest in 2014 is the 12.9C difference between the 34.9C top from February 26 and the 27th's 22.0C.

Another odd statistic from today was that the 2.5C difference between the low of 14.3C and the maximum of 16.8C is the smallest fluctuation this year and lowest since November 18 last year.

Despite early fog on a few mornings in Jyväskylä this week, the weather has been quite good. As my September 7 post mentioned, Tikkakoski only saw six September days above 20C between 2009 and 2013. Tuesday the 9th made it this September's fifth occurrence. This, however, should be the last day above 20C for this year. Wednesday and Thursday came very close also, getting to 19.4C and 19.8C respectively. The current average maximum for the month of 18.8C is the highest respective figure since 2009. It also sits 5C higher than that of 2012.

Like Sydney, Jyväskylä saw a drop in temperatures today. It barely got above 15C this afternoon making it the coldest day in almost a week and a half. Minimums have also been down - the previous two days have had figures just above 5C. This is fairly normal for this time of year though.

Dry weather also continued up until today. Other than a measly 0.1mm recorded on September 2, no other rain had been seen at Jyväskylä Airport until 4pm this afternoon. Tikkakoski registered a total of 1.5mm between 4pm and 7pm. Current forecasts suggest the monthly rainfall total will be well below average by the time September ends. Current forecasts don't predict any rain until September 21.

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