Thursday, 1 October 2015 - Monthly Climate Summary for Tasmania - Product code IDCKGC17R0

Tasmania in September 2015: very dry overall; above-average maximum temperatures

For most of Tasmania rainfall in September was very much below average, with large areas in the west of the State observing the lowest September rainfall on record. Maximum temperatures were above average across Tasmania, while minimum temperatures were generally slightly above average, tending below-average in the northwest of the State.

• 5th lowest September rainfall on record
• Above-average temperatures overall
• Highest September temperature at several sites on the 14th

For Tasmania, rainfall was the 5th lowest September rainfall on record and lowest since 1977. Most of the State received less than 60% of the long-term monthly mean and some sites recorded their lowest total September rainfall on record. Rain that fell was associated with several cold fronts that crossed Tasmania during the month. A low pressure system that passed north of the State on the 7th resulted in rainfall totals in the 10-20 mm range with only locally higher falls. Another low pressure system crossed the State at the end of the month bringing rainfall mostly to eastern parts of Tasmania. The highest registered total for the month was 191 mm at Mount Read in the West Highlands, while the highest daily rainfall (52 mm) was recorded at Loongana on the 7th. Hobart saw 15 days with rain, most of which were light falls; the monthly total was 25 mm, about half of its long-term average, while the highest fall (10 mm) was registered on the 29th.

The statewide average maximum temperature was 0.83 °C above the September mean. The highest maximum temperatures for the month were recorded on the 13th and 14th, associated with a northerly airstream preceding an approaching cold front. Across southern parts of Tasmania maximum daily temperatures on the 14th were more than 10 °C above the September average. The highest daily maximum temperature recorded in the State during September was 27.8 °C at Bushy Park on the 14th; this was also an early season record (warmest day before 15th September anywhere in Tasmania). On the same day Hobart saw a maximum temperature of 26.9 °C, while some sites had their highest September temperature on record.

The monthly mean minimum temperature was 0.15 °C above the average for a state as a whole, the lowest for September since 2008. Most of Tasmania recorded minimum temperatures slightly above average, with below-average temperatures in parts of the north and northwest of the State. There were several cool spells during the month, most notably on the 22nd and 23rd. The lowest daily minimum temperature recorded during the month was -5.8 °C at Liawenee on the 2nd, while in Hobart it was 2.3 °C on the 4th. Mid-month saw some high minimum temperatures, associated with a warm northerly airstream, when both Hobart and Friendly Beaches recorded 15 °C, the highest daily minimum temperature during the month.

Extremes Maps Records Summaries Important notes the top

Extremes Maps Records Summaries Important notes the top

Maps
	Observed	Anomaly	Decile rank
Total rainfall
Mean daily maximum temperatures
Mean daily minimum temperatures

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* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported.

* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported.

Extremes Maps Records Summaries Important notes the top

Extremes Maps Records Summaries Important notes the top