Tasmania in autumn 2017: a mostly warm and dry season

Tasmania had a very warm autumn overall, with the State's mean temperature the fifth-warmest on record. Rainfall was below average overall, especially in the west.

Temperatures well above average

  • Tasmania's mean temperature for autumn was 0.84 °C above average, the fifth-warmest autumn on record (but a little cooler than autumn 2016)
  • Temperatures were unseasonably warm on 22 May, with 21.1°C at Hobart Airport the warmest temperature ever recorded there so late in the autumn
  • Overall, daytime temperatures were well above average across Tasmania, with some sites (mostly in the west) having their highest autumn mean daily maximum temperature on record
  • The State mean maximum temperature was 0.95 °C above average, the eighth-warmest autumn on record (and a little warmer than autumn 2016)
  • The morning of 16 March was especially warm, with several sites reporting their highest autumn daily minimum temperature on record on that day
  • Overnight temperatures were well above average, with a few sites (especially in the northwest) having their highest autumn mean daily minimum temperature on record
  • The State mean minimum temperature was 0.72 °C above average, the equal eighth-warmest autumn on record (but almost half a degree cooler than autumn 2016)
  • Despite the generally mild autumn, there were some cold nights and cool days scattered through the season: some sites reported mornings below -4 °C on 3 April, 4 May and 31 May; whilst 30 May was the coldest autumn day for many years in some places

Rain below average, especially in the west

  • Rainfall was below average over much of Tasmania during autumn, with the southwest highlands well below average
  • Total rain for the State was 25% below the autumn average; much drier than the wet autumn 2016 (which was mostly the result of a the very wet May 2016)

A mild, dry autumn for Hobart

  • Hobart's mean daily maximum temperature of 18.8 °C was 1.5 °C above the long-term average for autumn
  • Hobart's warmest day this autumn was 32.1 °C on 14 March; at the other extreme it reached just 9.0 °C on 30 May (Hobart's coldest autumn day in 17 years)
  • Hobart's mean daily minimum temperature of 10.1 °C was 1.1 °C above the long-term average for autumn, with nights as cold as 3.3 °C (on 27 April) but not dropping below 20.7 °C on 16 March
  • Total autumn rainfall in Hobart was 87.0 mm, below the long-term average of 142 mm; there were only four days with more than 5 mm of rain compared to an average of about seven such wet days in autumn

Further information

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Extremes in autumn 2017
Hottest day 33.2 °C at Bushy Park (Bushy Park Estates) on 14 Mar
Warmest days on average 20.2 °C at Launceston (Ti Tree Bend)
Coolest days on average 9.8 °C at Kunanyi (Mount Wellington Pinnacle)
Coldest day -0.6 °C at Kunanyi (Mount Wellington Pinnacle) on 30 May
Coldest night -4.6 °C at Liawenee on 3 Apr and 4 May
Coolest nights on average 2.5 °C at Liawenee
Warmest nights on average 13.4 °C at Hogan Island
Warmest night 21.1 °C at Flinders Island Airport and Launceston (Ti Tree Bend) on 16 Mar
Warmest on average overall 16.2 °C at Hogan Island
Coolest on average overall 6.7 °C at Kunanyi (Mount Wellington Pinnacle)
Wettest overall 640.8 mm at Mount Read
Wettest day 142.0 mm at Pyengana (Forest Lodge Road) on 21 May
Strongest wind gust 144 km/h at Maatsuyker Island Lighthouse on 27 Mar

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 autumn daily rainfall
New record
(mm)
Old
record
Years of
record
Smithton Aerodrome 61.6 on 20 May 49.0 on 12 Apr 2003 21



Highest autumn total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
autumn
Devonport Airport 228.5 297.8 in 1992 184.2



Record lowest autumn daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
autumn
Dover 8.1 on 30 May 8.2 on 29 May 2000 28 16.9



Record highest autumn mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
autumn
Cape Sorell 17.6 = 17.6 in 2013 76 15.6
Butlers Gorge 15.1 = 15.1 in 1985 54 13.2
Launceston (Ti Tree Bend) 20.2 = 20.2 in 2013 33 19.1
Cape Grim BAPS (Comparison) 17.8 17.6 in 2013 24 16.6
Lake St Clair National Park 14.5 14.4 in 2007 24 13.3
Strahan Aerodrome 18.3 18.1 in 2013 24 16.8
Hartz Mountain (Keoghs Pimple) 12.6 12.5 in 2013 20 11.4

Highest autumn mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
autumn
Marrawah 18.3 18.5 in 1989 17.0
Kunanyi (Mount Wellington Pinnacle) 9.8 10.8 in 1993 8.5



Record highest autumn daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
autumn
Hobart Airport 21.0 on 16 Mar 20.4 on 13 Mar 2013 59 8.7
Butlers Gorge 16.4 on 16 Mar 15.5 on 11 Mar 1971 56 3.4
Scottsdale (West Minstone Road) 18.8 on 16 Mar 18.5 on 8 Mar 2010 46 7.9
Launceston (Ti Tree Bend) 21.1 on 16 Mar 19.1 on 10 Mar 2013 36 7.6
Dover 19.0 on 16 Mar 17.8 on 21 Mar 2012 28 7.3
Lake St Clair National Park 15.8 on 16 Mar 15.3 on 18 Mar 2003 27 3.1
Devonport Airport 19.3 on 16 Mar 19.2 on 3 Mar 2007 26 8.8
Maydena Post Office 18.3 on 16 Mar 16.4 on 21 Mar 2012 25 5.7
Bridport (Sea View Villas) 19.8 on 16 Mar 18.5 on 12 Mar 2013 23 9.7
Sheffield School Farm 18.0 on 2 Mar 17.3 on 3 Mar 2007 21 7.2
Low Head 20.3 on 16 Mar 19.5 on 13 Mar 2013 20 11.3



Record lowest autumn temperature
New record
(°C)
Old
record
Years of
record
Average for
autumn
Low Head 3.1 on 31 May 3.3 on 29 May 2011 20 11.3



Record highest autumn mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
autumn
Maatsuyker Island Lighthouse 11.0 = 11.0 in 1974 80 9.5
Bridport (Sea View Villas) 11.0 = 11.0 in 2016 21 9.7
King Island Airport 11.8 = 11.8 in 2016 21 10.7
Luncheon Hill (Forestry) 9.8 9.5 in 2016 21 8.3
Hartz Mountain (Keoghs Pimple) 5.8 5.7 in 2007 20 4.7
Mount Read 4.9 4.5 in 2003 20 3.5
Sheffield School Farm 8.3 8.2 in 2016 20 7.2

Highest autumn mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
autumn
Burnie (Round Hill) 11.8 12.2 in 1989* 10.1

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




Record highest autumn mean temperature
New record
(°C)
Old
record
Years of
record
Average for
autumn
Cape Sorell 14.6 = 14.6 in 2016 76 13.0
Butlers Gorge 9.5 = 9.5 in 1956 54 8.3
Cape Grim BAPS (Comparison) 15.1 15.0 in 2016 24 14.1
Strahan Aerodrome 13.8 = 13.8 in 2016 24 12.7
King Island Airport 15.4 15.2 in 2013 21 14.3
Luncheon Hill (Forestry) 13.3 13.1 in 2016 21 12.0
Hartz Mountain (Keoghs Pimple) 9.2 9.0 in 2007 20 8.1
Mount Read 7.6 7.3 in 2007 20 6.3

Highest autumn mean temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
autumn
Marrawah 14.8 15.0 in 1988 13.7
Kunanyi (Mount Wellington Pinnacle) 6.7 7.3 in 1993 5.4



Summary statistics for autumn 2017
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
autumn
2017
Diff
from
average
Highest for
autumn
2017
Mean for
autumn
2017
Diff
from
average
Lowest for
autumn
2017
Total for
autumn
2017
Average
for
autumn
Rank of
autumn
2017
Fraction of
autumn
average
Northern (district 91)
Bridport (Sea View Villas)     27.1 13 Mar 11.0 +1.3 2.5 31 May 144.5 182.1 low 79%
Burnie (Round Hill) 18.5 +0.8 24.5 1 Mar 11.8 +1.7 3.2 31 May 213.4 219.0 average 97%
Cape Grim 17.7   25.5 2 Mar 12.3   6.2 27 Apr 182.6
Cape Grim BAPS (Comparison) 17.8 +1.2 25.1 2 Mar 12.3 +0.7 6.1 27 Apr 189.6 193.8 average 98%
Cressy Research Station 19.1 +0.5 30.8 1 Mar 6.8 +1.0 -2.8 3 May 181.8 134.7 high 135%
Devonport Airport 18.6 +0.8 25.5 13 Mar 10.1 +1.3 0.7 31 May 228.5 184.2 high 124%
Launceston (Ti Tree Bend) 20.2 +1.1 30.9 1 Mar 8.7 +1.1 -1.5 31 May 137.0 155.1 low 88%
Launceston Airport 19.1 +0.6 30.7 1 Mar 7.5 +0.7 -1.9 31 May 134.2 151.0 low 89%
Low Head 18.4 +0.7 25.7 13 Mar 11.9 +0.6 3.1 31 May   166.2    
Luncheon Hill (Forestry) 16.9 +1.1 29.4 1 Mar 9.8 +1.5 2.1 27 Apr 305.8 352.7 average 87%
Marrawah 18.3 +1.3 27.0 1 Mar 11.3 +0.9 4.5 27 Apr 297.6 259.4 high 115%
Scottsdale (West Minstone Road) 18.8 +0.8 28.9 1 Mar 9.0 +1.1 -1.7 31 May 140.8 230.7 v low 61%
Sheffield School Farm 17.2 +0.5 27.3 1 Mar 8.3 +1.1 0.0 31 May 295.0 227.5 high 130%
Smithton Aerodrome 18.6 +0.7 27.0 2 Mar 8.9 +1.1 -0.3 31 May 257.4 198.3 high 130%
Wynyard Airport 18.4 +0.8 26.5 2 Mar 8.7 +1.3 -1.1 31 May 257.4 220.1 high 117%
East Coast (district 92)
Bicheno (Council Depot) 19.1 +0.4 25.5 16 Mar 11.0 +0.7 3.6 29 May 128.6 171.9 average 75%
Fingal (Legge Street) 19.1 +0.7 30.4 2 Mar 5.9 +0.5 -3.7 4 May 168.8 146.3 high 115%
Friendly Beaches 19.2 +0.4 29.6 27 Mar 10.5 +0.5 2.9 4 May 130.6 161.5 average 81%
Lake Leake (Elizabeth River) 15.0 +0.6 27.3 14 Mar 4.8 +0.7 -2.7 4 May 183.4 203.1 average 90%
Larapuna (Eddystone Point) 19.1 +1.2 25.1 1 Mar 12.6 +1.4 3.7 31 May 157.8 189.8 average 83%
Maria Island (Point Lesueur) 17.6 -0.1 27.4 19 Mar 12.0 +0.7 6.9 31 May
Orford (Aubin Court) 18.4 +0.2 30.4 19 Mar 9.2 +0.8 2.6 3 May 112.4 158.9 average 71%
St Helens Aerodrome 18.9 +0.4 27.8 19 Mar 10.3 +0.8 1.5 3 May 166.4 168.4 average 99%
Swan Island 18.7 +0.5 26.2 19 Mar 13.3 +0.6 5.0 31 May 121.6 171.3 average 71%
Swansea (Francis Street) 18.9   30.6 19 Mar 8.9   1.6 4 May 165.4
Midlands (district 93)
Ross (The Boulevards) 18.8 +0.9 31.5 1 Mar 6.1 +0.4 -4.2 31 May 126.2 102.9 high 123%
Southeast (district 94)
Campania (Kincora) 19.6 +0.6 32.7 19 Mar 7.8 +0.1 0.6 17 May 92.4 99.7 average 93%
Cape Bruny (Cape Bruny) 17.4 +0.9 32.2 15 Mar 10.7 +0.6 5.7 12 May 145.4 175.8 low 83%
Cape Bruny Lighthouse 17.0 +1.5 31.0 15 Mar 11.1 +1.4 6.0 12 May 151.5 231.0 low 66%
Dennes Point 18.0   29.0 15 Mar 10.7   4.7 17 May 91.8
Dover 17.8 +0.9 32.7 15 Mar 7.4 +0.1 1.1 12 May 148.6 202.0 average 74%
Dunalley (Stroud Point) 18.4   30.1 27 Mar 11.1   5.5 12 May 120.2
Grove (Research Station) 18.6 +0.6 32.6 14 Mar 6.1 +0.1 -0.7 27 Apr   144.0    
Hobart (Ellerslie Road) 18.8 +1.5 32.1 14 Mar 10.1 +1.1 3.3 27 Apr 87.0 141.6 low 61%
Hobart Airport 19.0 +0.9 32.9 14 Mar 9.4 +0.7 2.3 27 May 73.8 112.7 low 65%
Kunanyi (Mount Wellington Pinnacle) 9.8 +1.3 21.8 19 Mar 3.6 +1.3 -3.0 27 Apr 212.2 229.7 average 92%
Maatsuyker Island Lighthouse 15.4 +0.9 30.2 15 Mar 11.0 +1.5 6.4 3 May 221.4 308.1 low 72%
Melton Mowbray (North Stockman) 18.5 +0.9 31.4 19 Mar 6.3 +0.1 -2.2 27 Apr 77.8 93.2 average 83%
Tasman Island 15.6 +0.5 25.2 19 Mar 10.8 +0.9 5.0 31 May 137.8 208.8 v low 66%
Tunnack Fire Station 16.6 +1.0 29.1 1 Mar 5.8 +0.4 -3.8 27 Apr 86.8 133.4 low 65%
Derwent Valley (district 95)
Bushy Park (Bushy Park Estates) 19.6 +1.5 33.2 14 Mar 6.2 0.0 -1.9 31 May   130.3    
Maydena Post Office 17.7 +1.5 31.0 14 Mar 6.3 +0.6 -1.0 27 Apr 140.8 248.5 v low 57%
Ouse Fire Station 19.2 +0.7 32.1 19 Mar 5.6 +0.1 -1.2 27 May 103.6 95.9 average 108%
Central Plateau (district 96)
Butlers Gorge 15.1 +1.9 27.8 1 Mar 4.0 +0.6 -2.0 27 May 219.6 403.3 v low 54%
Lake St Clair National Park 14.5 +1.2 27.1 1 Mar 3.7 +0.6 -2.5 27 Apr 264.2 413.7 v low 64%
Liawenee 13.5 +1.1 25.7 2 Mar 2.5 +0.6 -4.6 3 Apr 229.0 219.7 average 104%
West Coast (district 97)
Cape Sorell 17.6 +2.0 26.4 19 Mar 11.7 +1.4 5.7 31 May 253.6 320.3 low 79%
Hartz Mountain (Keoghs Pimple) 12.6 +1.2 26.4 1 Mar 5.8 +1.1 -0.4 31 May 165.4 223.0 low 74%
Low Rocky Point 17.1   28.7 15 Mar 10.7   5.0 12 May 291.2 333.7 low 87%
Mount Read 10.3 +1.3 22.9 1 Mar 4.9 +1.4 -1.6 27 Apr 640.8 973.4 v low 66%
Scotts Peak Dam 17.1 +2.2 32.0 15 Mar 7.7 +0.8 0.5 7 May 315.2 417.1 low 76%
Strahan Aerodrome 18.3 +1.5 30.8 14 Mar 9.3 +0.8 0.4 15 May 366.6 369.5 average 99%
Warra 14.7 +0.9 28.2 14 Mar 5.9 -0.1 -1.9 12 May 231.0 403.1 v low 57%
King Island (district 98)
King Island Airport 19.0 +1.2 29.5 15 Mar 11.8 +1.1 5.1 10 May 162.2 195.2 low 83%
Flinders Island (district 99)
Flinders Island Airport 19.7 +0.9 27.1 14 Mar 11.2 +0.4 2.9 27 Apr 241.8 187.7 high 129%
Hogan Island 18.9 +0.8 28.7 27 Mar 13.4 +0.4 7.7 29 May 131.0 152.8 average 86%
Note: From 2017, information about Macquarie Island can be found in the climate summary for the Remote Islands and Antarctica

Notes

The Seasonal climate summary, generally published on the first working day of each month, 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. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

This statement has been prepared based on information available at 12 pm on Thursday 1 June 2017. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.

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.

From 2017, information about Macquarie Island can be found in the climate summary for the Remote Islands and Antarctica

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.

Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.

Further information

Media
(03) 9669 4057
Enquiries