Tasmania in September 2016: a wet and windy end to a mild month

A wet and windy end to September gave above-average rainfall totals to the east and much of the north, but fewer westerlies than usual meant the southwest had below-average rain. Temperatures were above average across Tasmania.

A wet and windy end to the month

  • Gusty easterly winds on the 29th as the low pressure system that had major impacts in South Australia passed close to Tasmania, with Tasman Island having an exceptional northeasterly wind gust of 113 km/h
  • Very heavy rain at the end of the month, with many sites in the east having their highest September daily rainfall on record, led to flash and riverine flooding

A wet month in the east and north

A mild month

  • The fourth-warmest September on record for Tasmania, with the State's mean maximum temperature 1.44 °C above average and the mean minimum temperature 1.43 °C above average
  • Launceston, Devonport and Butlers Gorge had their highest September mean temperature on record
  • Some cold nights despite the generally mild weather: Liawenee on the Central Plateau dropped below −4 °C on the 2nd, 7th, 12th and 26th, and Cape Grim had its equal-lowest September temperature on record when it dipped to 3.0 °C on the morning of the 13th

A mild and wet month for Hobart

  • Hobart's rain of 94.2 mm was the wettest September since 2009, with most falling around the 15th or in the last two days of the month
  • Daytime temperatures were 1.1 °C above the long-term average in Hobart, peaking at 22.5 °C on the 8th
  • Hobart's overnight temperatures were 1.6 °C above average; the temperature dropped below 4 °C only once, on the 12th, compared to an average of about six such cold nights in September

Further information

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Extremes in September 2016
Hottest day 22.8 °C at Bushy Park (Bushy Park Estates) and at Swansea (Francis Street) on the 8th
Warmest days on average 16.9 °C at Bushy Park (Bushy Park Estates) and Friendly Beaches
Coolest days on average 6.4 °C at Kunanyi (Mount Wellington Pinnacle)
Coldest day 1.9 °C at Mount Read on the 12th
Coldest night -6.8 °C at Liawenee on the 2nd
Coolest nights on average 0.3 °C at Liawenee
Warmest nights on average 10.0 °C at Hogan Island and Swan Island
Warmest night 14.5 °C at Flinders Island Airport on the 9th
Warmest on average overall 12.6 °C at Bicheno (Council Depot) and Larapuna (Eddystone Point)
Coolest on average overall 3.5 °C at Kunanyi (Mount Wellington Pinnacle)
Wettest overall 303.0 mm at Mount Read
Driest overall 30.4 mm at Cape Bruny Lighthouse
Wettest day 90.0 mm at Fern Tree (Grays Road) on the 30th
Strongest wind gust 120 km/h at Kunanyi (Mount Wellington Pinnacle) on the 6th

Maps
ObservedAnomalyDecile rank
Total
rainfall
Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
Mean
daily
maximum
temperatures
Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
Mean
daily
minimum
temperatures
Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

Click on a map to show it full size in a pop-up window


Record highest September daily rainfall
New record
(mm)
Old
record
Years of
record
Bushy Park (Bushy Park Estates) 35.0 on the 30th 29.2 on the 21st in 1923 112
Bothwell (Cluny) 56.4 on the 30th 32.3 on the 26th in 1971 103
Waterhouse(Barooga) 48.8 on the 30th 46.5 on the 17th in 1966 57
Rotherwood 75.6 on the 30th 45.6 on the 18th in 1984 45
Tooms Lake (Tooms River) 80.6 on the 30th 50.4 on the 12th in 2005 43
Lucaston (Bakers Creek Road) 53.0 on the 30th 52.8 on the 12th in 2005 38
Kunanyi (Mount Wellington Pinnacle) 81.6 on the 30th 73.8 on the 23rd in 2009 36
Loongana (Serendipity) 68.2 on the 30th 65.0 on the 23rd in 1998 33
Richmond (Strathayr) 40.0 on the 30th 27.4 on the 27th in 2009 29
Maydena Post Office 52.6 on the 30th 33.9 on the 18th in 2003 24
Three Hummock Island 54.4 on the 9th 24.1 on the 22nd in 1955 24
Bridport (Sea View Villas) 37.6 on the 30th 36.4 on the 23rd in 1998 22
Llewellyn (South Esk River) 57.0 on the 30th 52.0 on the 12th in 2005 22
Mount Morriston (Macquarie River) 45.6 on the 30th 42.8 on the 12th in 2005 22
Mount Seymour 56.0 on the 30th 36.2 on the 12th in 2005 22
Hermitage (Shannon River) 38.8 on the 30th 27.4 on the 6th in 2000 21
Luncheon Hill (Forestry) 64.6 on the 9th 51.0 on the 23rd in 1998 21
Mathinna (South Esk River) 63.8 on the 30th 37.4 on the 2nd in 2001 21
Meander (Meander River) 52.8 on the 30th 43.4 on the 29th in 2005 21
Molesworth (Glen Dhu Road) 56.0 on the 30th 42.0 on the 27th in 2009 21
Upper Esk (South Esk River) 61.2 on the 30th 41.8 on the 6th in 2012 21
Below Craigbourne Dam (Coal River) 40.6 on the 30th 40.4 on the 23rd in 2009 20
Hartz Mountain (Keoghs Pimple) 51.6 on the 30th 39.8 on the 5th in 2010 20
Melton Mowbray (North Stockman) 34.0 on the 30th 31.0 on the 12th in 2005 20
Smithton Aerodrome 55.0 on the 9th 45.2 on the 12th in 2005 20
Tunbridge (Austin-Vale) 42.0 on the 30th 31.8 on the 23rd in 1998 20



Record highest September total rainfall
New record
(mm)
Old
record
Years of
record
Average for
September
Tooms Lake (Tooms River) 175.6 160.4 in 2009 54 51.0
Cape Grim BAPS (Comparison) 138.0 128.2 in 1996 30 77.6
Three Hummock Island 174.8 125.8 in 2013 24 79.2
Llewellyn (South Esk River) 113.6 93.2 in 2009 22 46.5
Mathinna (South Esk River) 125.0 121.4 in 2002 20 64.6

Highest September total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
September
Coles Bay (Freycinet) 144.5 151.8 in 1966* 50.8
York Plains (Handroyd) 116.6 126.9 in 1984 44.5
Wynyard Airport 183.0 191.7 in 1964* 97.2
Yolla (Sea View) 210.6 240.8 in 1996 143.9

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




Record highest September mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
September
Macquarie Island 6.5 = 6.5 in 2000 68 5.4



Record lowest September temperature
New record
(°C)
Old
record
Years of
record
Average for
September
Cape Grim BAPS (Comparison) 3.0 on the 13th = 3.0 on the 4th in 1993 24 8.6



Record highest September mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
September
Maydena Post Office 5.1 4.8 in 2013 23 3.5
Ross (The Boulevards) 5.2 5.1 in 1998 22 3.7

Highest September mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
September
Bushy Park (Bushy Park Estates) 5.3 5.5 in 1987 3.9



Record highest September mean temperature
New record
(°C)
Old
record
Years of
record
Average for
September
Butlers Gorge 7.1 6.9 in 2013 55 5.6
Launceston (Ti Tree Bend) 11.8 = 11.8 in 2013 33 10.5
Devonport Airport 11.4 = 11.4 in 2013 24 10.2

Highest September mean temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
September
Bushy Park (Bushy Park Estates) 11.1 11.2 in 1950* 9.7

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




Summary statistics for September 2016
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
September
2016
Diff
from
average
Highest for
September
2016
Mean for
September
2016
Diff
from
average
Lowest for
September
2016
Total for
September
2016
Average
for
September
Rank of
September
2016
Fraction of
September
average
Northern (district 91)
Bridport (Sea View Villas) 15.6 +0.7 19.2 10th     2.0 20th 85.3 72.4 average 118%
Burnie (Round Hill) 15.3 +0.9 18.1 8th 7.0 +0.1 2.3 12th 135.0 88.2 high 153%
Cape Grim 13.5   16.4 8th 8.9   3.1 13th 143.2
Cape Grim BAPS (Comparison) 13.9 +0.4 17.0 21st 9.0 +0.4 3.0 13th 138.0 77.6 highest 178%
Cressy Research Station 15.4 +0.5 19.6 8th 5.2 +1.2 0.3 12th 101.6 63.3 high 161%
Devonport Airport 15.4 +1.1 18.8 10th 7.4 +1.3 2.5 12th 121.0 75.0 v high 161%
Launceston (Ti Tree Bend) 16.7 +1.0 21.3 8th 6.8 +1.6 2.5 12th 64.4 65.5 average 98%
Launceston Airport 15.7 +0.5 20.8 8th 5.3 +1.2 1.2 12th 64.4 58.7 average 110%
Low Head 14.6 +0.6 18.2 22nd 9.1 +0.6 5.3 16th 62.8 61.9 average 101%
Luncheon Hill (Forestry) 12.9 +0.4 18.6 21st 6.6 +1.2 1.7 12th 214.4 170.5 high 126%
Marrawah 14.1 +0.4 17.3 21st 8.1 +0.6 2.5 13th 134.4 103.6 high 130%
Scottsdale (West Minstone Road) 15.1 +0.8 19.4 10th 6.3 +1.5 1.9 12th 102.0 96.9 average 105%
Sheffield School Farm 13.7 +0.4 16.9 22nd 5.3 +0.6 1.4 2nd 172.2 125.7 high 137%
Smithton Aerodrome 15.0 +0.1 17.8 21st 7.1 +0.9 1.1 13th 157.6 99.7 v high 158%
Wynyard Airport 15.2 +0.7 18.5 22nd 6.4 +1.4 0.4 13th 183.0 97.2 v high 188%
East Coast (district 92)
Bicheno (Council Depot) 16.6 +0.4 20.2 6th 8.7 +1.3 4.8 16th 97.3 44.7 v high 218%
Fingal (Legge Street) 15.6 +0.2 20.5 8th 4.2 +0.9 0.5 12th 97.2 49.6 v high 196%
Friendly Beaches 16.9 +0.1 21.0 8th 8.1 +0.5 4.5 12th 122.2 42.7 v high 286%
Lake Leake (Elizabeth River) 12.3 +0.8 17.4 9th 3.4 +1.4 -2.1 2nd 137.8 70.9 v high 194%
Larapuna (Eddystone Point) 16.1 +1.3 18.1 5th 9.2 +1.3 6.0 13th 79.4 63.2 high 126%
Maria Island (Point Lesueur) 15.0 -0.3 19.4 8th 9.4 +0.9 6.1 12th 100.4 50.1 high 200%
Orford (Aubin Court) 16.4 +0.6 22.0 8th 7.0 +1.4 2.9 12th 132.3 52.0 v high 254%
St Helens Aerodrome 16.4 +0.3 19.6 8th 7.6 +0.9 3.9 27th 93.2 54.7 high 170%
Swan Island 14.9 +0.2 17.7 9th 10.0 +0.8 7.3 13th 96.0 57.4 high 167%
Swansea (Francis Street) 16.0   22.8 8th 6.9   2.1 2nd 106.4
Midlands (district 93)
Ross (The Boulevards) 15.4 +0.8 18.8 8th 5.2 +1.5 -0.8 2nd 92.4 52.9 v high 175%
Southeast (district 94)
Campania (Kincora) 16.4 +0.2 22.4 8th 6.2 +0.8 0.6 7th 92.0 48.8 high 189%
Cape Bruny (Cape Bruny) 15.0 +0.6 20.9 8th 8.6 +1.1 3.6 13th 38.6 70.4 v low 55%
Cape Bruny Lighthouse 14.5 +1.2 20.6 8th 8.9 +1.9 4.0 13th 30.4 80.9 v low 38%
Dennes Point 14.8   19.3 8th 8.5   4.4 13th 43.8
Dover 15.6 +0.9 22.2 8th 5.7 +0.7 -0.2 13th 49.6 83.1 low 60%
Dunalley (Stroud Point) 15.8   22.6 8th 8.8   5.3 7th 58.6
Grove (Research Station) 16.0 +0.6 22.1 8th 5.0 +0.6 -0.6 12th 105.4 82.3 high 128%
Hobart (Ellerslie Road) 16.2 +1.1 22.5 8th 8.0 +1.6 3.6 12th 94.2 53.3 high 177%
Hobart Airport 16.1 +0.7 22.4 8th 7.4 +1.3 1.9 14th 61.4 41.5 high 148%
Kunanyi (Mount Wellington Pinnacle) 6.4 +1.8 10.3 8th 0.6 +1.8 -3.9 13th 188.0 74.0 v high 254%
Maatsuyker Island Lighthouse 12.8 +0.6 18.8 8th 8.6 +1.7 4.5 13th 57.8 108.7 v low 53%
Melton Mowbray (North Stockman) 15.2 +0.5 20.2 8th 5.4 +1.0 0.1 2nd 64.2 49.8 high 129%
Tasman Island 12.9 +0.2 18.0 9th 8.3 +1.3 5.2 12th 45.8 80.1 low 57%
Tunnack Fire Station 13.2 +0.7 17.0 9th 4.6 +1.3 -2.3 12th 95.0 62.3 high 152%
Derwent Valley (district 95)
Bushy Park (Bushy Park Estates) 16.9 +1.4 22.8 8th 5.3 +1.4 -0.3 7th 50.0 53.8 average 93%
Maydena Post Office 14.7 +1.0 20.8 8th 5.1 +1.6 -1.0 13th 94.2 133.0 average 71%
Ouse Fire Station 16.3 +0.5 21.2 8th 5.2 +1.3 -0.4 27th 60.8 67.4 average 90%
Central Plateau (district 96)
Butlers Gorge 11.5 +1.3 16.0 8th 2.8 +1.8 -3.0 20th 95.0 167.4 low 57%
Lake St Clair National Park 11.1 +0.9 14.7 23rd 2.1 +1.2 -2.1 26th 102.6 208.5 low 49%
Liawenee 9.6 +0.6 12.2 27th 0.3 +0.8 -6.8 2nd 129.4 115.5 average 112%
West Coast (district 97)
Cape Sorell 14.8 +1.6 17.9 21st 9.0 +1.1 4.4 13th 114.8 121.2 average 95%
Hartz Mountain (Keoghs Pimple) 10.1 +1.4 15.7 27th 3.2 +1.3 -1.6 13th 94.6 97.0 average 98%
Low Rocky Point 14.4   19.6 8th 8.2   1.7 13th 106.0 130.4 average 81%
Mount Read 6.6 +0.9 11.4 21st 1.5 +1.0 -2.3 13th 303.0 359.7 average 84%
Scotts Peak Dam 14.4 +2.0 20.5 24th 5.2 +0.8 -1.1 13th 123.4 210.8 low 59%
Strahan Aerodrome 15.3 +0.9 20.6 24th 7.2 +0.9 -0.5 13th 151.2 150.7 average 100%
Warra 12.0 +0.4 17.2 8th 4.1 +0.5 -2.8 13th 98.8 190.2 low 52%
King Island (district 98)
King Island Airport 14.8 +0.1 18.3 8th 8.9 +0.5 4.6 3rd 121.4 86.6 high 140%
Flinders Island (district 99)
Flinders Island Airport 15.7 +0.6 22.5 8th 8.9 +1.3 1.9 27th 66.8 63.0 average 106%
Hogan Island 14.7 +0.1 19.2 8th 10.0 +0.8 8.0 13th 33.0 51.2 low 64%
Antarctica and Macquarie Island (district 300)
Macquarie Island 6.5 +1.1 8.1 28th 3.2 +1.7 0.3 3rd 66.8 74.5 average 90%

Notes

The Monthly climate summary lists the main features of the weather in Tasmania using the most timely and accurate information available on the date of publication; it will generally not be updated. Later information, including data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

A climate summary is generally published on the first working day of each month.

This statement has been prepared based on information available at 9 am on Monday 3 October 2016. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

Averages for individual sites are long-term means based on observations from all available years of record, which vary widely from site to site. They are not shown for sites with less than 10 years of record, as they cannot then be calculated reliably.
The median is sometimes more representative than the mean of long-term average rain.

The Rank indicates how rainfall this time compares with the climate record for the site, based on the decile ranking (very low rainfall is in decile 1, low in decile 2 or 3, average in decile 4 to 7, high in decile 8 or 9 and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a percentage of the long-term mean.

The ACORN-SAT dataset is used for temperature area averages.

Further information

Media
(03) 9669 4057
Enquiries