Tasmania in April 2016: another warm month, and very dry in the east

April saw a continuation of unseasonably warm temperatures in Tasmania, with some sites having their warmest April on record. Rainfall was well below average in the east of the State, but closer to average in parts of the west.

  • Very warm days
  • Record warm mean maximum for Hobart
  • Mostly mild nights
  • Dry for most areas

Rainfall during April was very much below average over much of Tasmania, with some sites having their driest April on record. Many other sites had their driest April for several decades; along the northwest coast, some sites had their driest April since 1963. Some active cold fronts brought significant rain to the western highlands – Mount Read had 389.4 mm for the month – but often little if any rain reached the east, or even the northwest coast. Rainfall has been below average in most areas of Tasmania since at least June 2015, and in parts of the west total rain for those 10 months is the lowest on record.

Daytime temperatures were above the April average for most of the month, with very few cold days. Even though there were no especially hot days several sites in the east (including Hobart) had their highest April mean daily maximum temperature on record. Overall, temperatures were about one or two degrees above average for April, making them more typical of late summer than mid-autumn. The highest temperature was 27.1 °C at Friendly Beaches on the 20th, which is quite late in autumn for Tasmania to get such a warm day. Overnight temperatures were also above average, typically by about half to one degree, although cool mornings were common from the 17th to 25th. Mean monthly temperatures have mostly been above average in Tasmania since August 2015.

Hobart

Hobart's mean daily maximum temperature was a record for April at 20.4 °C, more than three degrees above the long-term average. There were three days over 25 °C (including the 26th); typically the city records only about one day each April that warm. The mean minimum temperature of 10.8 °C was about 1.8 °C above average. There was just 8.8 mm of rain in the city during the month, well down on the April average of about 51 mm.

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Extremes in April 2016
Hottest day 27.1 °C at Friendly Beaches on the 20th
Warmest days on average 21.3 °C at Flinders Island Airport
Coolest days on average 9.5 °C at Mount Read
Coldest day 3.8 °C at Mount Read on the 16th
Coldest night -4.9 °C at Liawenee on the 22nd
Coolest nights on average 3.1 °C at Liawenee
Warmest nights on average 13.9 °C at Hogan Island
13.9 °C at Swan Island
Warmest night 18.2 °C at Bicheno (Council Depot) on the 28th
Warmest on average overall 16.8 °C at Hogan Island
16.8 °C at Swan Island
Coolest on average overall 6.6 °C at Kunanyi (Mount Wellington Pinnacle)
Wettest overall 389.4 mm at Mount Read
Driest overall 2.6 mm at Westmoore
Wettest day 52.6 mm at Mount Read on the 11th
Strongest wind gust 133 km/h at Kunanyi (Mount Wellington Pinnacle) on the 10th

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 lowest April total rainfall
New record
(mm)
Old
record
Years of
record
Average for
April
Fort Direction 7.6 8.0 in 2002 68 42.1
Forthside Research Station 8.0 12.0 in 1977 51 71.4
Kimberley (Siding) 9.7 13.5 in 1967 51 66.5
Margate (Sunnyside) 9.8 13.0 in 2000 49 53.9
Rotherwood 7.6 9.4 in 2002 44 45.3
Nugent (Twilight Valley) 10.2 11.4 in 2000 33 66.5
Nierinna (Cuthberts Road) 15.4 24.6 in 2000 22 74.0
Llewellyn (South Esk River) 4.4 9.4 in 1996 21 31.4

Lowest April total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Average for
April
Premaydena Hatchery 15.4 4.8 in 1923 68.8
Ringarooma (Main Street) 8.6 0.5 in 1923* 88.3
Lilydale Post Office 9.4 7.4 in 1927* 76.8
Richmond (Brookbank) 6.0 1.0 in 1923* 45.7
Colebrook (The Meadows) 7.2 5.8 in 1941* 52.5
Lake Leake (Elizabeth River) 15.4 10.2 in 1967 68.3
Fingal (Legge Street) 3.0 1.4 in 1967* 51.3
Woodbridge 23.2 18.0 in 1945* 77.4
St Marys (Cullenswood) 5.2 1.6 in 1967* 74.8
Ormley 4.6 =4.6 in 1977* 47.3
Gladstone (Old Post Office) 26.4 10.1 in 1987 72.7
Lewis Hill (St Pauls River) 6.8 5.4 in 1987 54.0
Lady Barron (Franklin Parade) 16.2 13.8 in 1987* 62.3
Chain of Lagoons 10.0 6.1 in 1949* 65.8
Hobart Airport 8.0 7.4 in 1993 41.2
Wattle Hill 11.6 11.4 in 1993 55.7

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




Record highest April mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
April
Hobart (Ellerslie Road) 20.4 19.6 in 2012 134 17.3
Cape Bruny Lighthouse 18.3 17.7 in 1971 93 15.5
Cape Sorell 17.8 = 17.8 in 1904 75 15.5
Hobart Airport 20.6 20.0 in 2005 57 18.1
Flinders Island Airport 21.3 20.5 in 2005 53 18.7
Orford (Aubin Court) 20.6 20.5 in 1972 47 18.3
Bicheno (Council Depot) 20.4 = 20.4 in 2005 41 18.8
Fingal (Legge Street) 20.5 20.4 in 1987 30 18.2
Wynyard Airport 19.2 = 19.2 in 2007 30 17.5
Dover 19.4 18.5 in 2005 26 16.8
Lake Leake (Elizabeth River) 16.0 15.8 in 2005 26 14.1
Cape Grim BAPS (Comparison) 18.1 18.0 in 2005 24 16.5
Ross (The Boulevards) 19.7 19.2 in 2002 22 17.5



Record highest April daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
April
Friendly Beaches 17.5 on the 28th = 17.5 on the 10th in 2005 20 9.8



Record highest April mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
April
Cape Bruny Lighthouse 11.5 = 11.5 in 1989 92 9.6
Marrawah 11.6 = 11.6 in 1989 45 10.3
Cape Grim BAPS (Comparison) 12.7 12.6 in 2010 24 11.4
Strahan Aerodrome 10.1 10.0 in 2010 23 8.4
Luncheon Hill (Forestry) 9.7 = 9.7 in 2010 20 8.1

Highest April mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
April
Hobart (Ellerslie Road) 10.8 11.3 in 1989 9.0
Maatsuyker Island Lighthouse 11.1 11.6 in 1989 9.5



Record highest April mean temperature
New record
(°C)
Old
record
Years of
record
Average for
April
Hobart (Ellerslie Road) 15.6 15.1 in 1989 133 13.1
Cape Bruny Lighthouse 14.9 14.4 in 1989 92 12.6
Hobart Airport 15.3 15.0 in 1989 57 13.4
Flinders Island Airport 16.6 16.4 in 2005 53 14.7
Orford (Aubin Court) 15.3 14.7 in 1989 47 13.4
Dover 13.7 13.2 in 1990 26 11.9
Cape Grim BAPS (Comparison) 15.4 15.0 in 2005 24 13.9
Strahan Aerodrome 14.2 13.9 in 2010 23 12.5

Highest April mean temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
April
Bicheno (Council Depot) 15.8 16.0 in 1973* 14.6
Fingal (Legge Street) 13.1 13.4 in 1989 11.8
Maatsuyker Island Lighthouse 13.4 14.2 in 1989 12.0
Marrawah 15.0 15.3 in 1989 13.5

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




Summary statistics for April 2016
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
April
2016
Diff
from
average
Highest for
April
2016
Mean for
April
2016
Diff
from
average
Lowest for
April
2016
Total for
April
2016
Average
for
April
Rank of
April
2016
Fraction of
April
average
Northern (district 91)
Bridport (Sea View Villas) 19.7 +1.6 22.2 20th 11.0 +1.6 5.4 7th 36.1 60.5 low 60%
Burnie (Round Hill) 19.2 +1.5 21.8 27th 9.5 -0.5 6.1 7th 31.0 73.1 low 42%
Cape Grim 17.7   21.3 27th 12.8   9.2 14th 33.8
Cape Grim BAPS (Comparison) 18.1 +1.6 21.6 27th 12.7 +1.3 9.8 14th 32.4 65.0 low 50%
Cressy Research Station 19.7 +1.5 24.8 20th 6.5 +1.1 -0.8 7th 21.4 41.3 low 52%
Devonport Airport 19.0 +1.3 21.8 27th 9.7 +1.1 3.1 7th 31.4 59.7 low 53%
Launceston (Ti Tree Bend) 20.3 +1.4 24.6 20th 8.5 +1.0 1.8 7th 25.8 51.2 low 50%
Launceston Airport 19.3 +1.2 24.1 20th 7.4 +0.8 0.2 7th 18.2 43.7 low 42%
Low Head 18.9 +1.2 20.9 5th 12.3 +1.2 8.0 7th 30.4 55.0 low 55%
Luncheon Hill (Forestry) 17.2 +1.6 25.2 20th 9.7 +1.6 4.4 7th 70.8 99.0 low 72%
Marrawah 18.4 +1.6 23.7 26th 11.6 +1.3 8.0 17th 55.4 83.5 low 66%
Scottsdale (West Minstone Road) 19.4 +1.5 23.5 20th 8.9 +1.0 2.4 7th 34.0 78.4 low 43%
Sheffield School Farm 17.7 +1.2 22.4 20th 7.9 +0.9 2.1 7th 42.4 64.8 low 65%
Smithton Aerodrome 19.2 +1.4 23.2 5th 8.1 +0.5 1.9 7th 42.6 57.8 average 74%
Wynyard Airport 19.2 +1.7 23.0 5th 7.4 +0.3 2.7 24th 29.8 71.1 low 42%
East Coast (district 92)
Bicheno (Council Depot) 20.4 +1.6 24.1 28th 11.3 +1.0 5.2 7th 11.3 58.7 v low 19%
Fingal (Legge Street) 20.5 +2.3 25.5 20th 5.8 +0.4 0.0 24th 3.0 51.3 v low 6%
Friendly Beaches 21.1 +2.5 27.1 20th 11.1 +1.3 6.2 18th 7.2 48.7 v low 15%
Lake Leake (Elizabeth River) 16.0 +1.9 21.2 20th 4.8 +0.7 -1.2 24th 15.4 68.3 v low 23%
Larapuna (Eddystone Point) 20.2 +2.4 23.1 5th 12.6 +1.5 6.5 7th 12.2 65.3 v low 19%
Maria Island (Point Lesueur) 19.2 +1.6 23.8 20th 12.7 +1.5 8.4 7th 3.0 36.2 v low 8%
Orford (Aubin Court) 20.6 +2.3 25.8 20th 9.6 +1.2 4.0 18th 10.6 55.8 v low 19%
St Helens Aerodrome 20.4 +2.0 25.1 20th 10.3 +0.7 4.0 7th 26.2 56.2 low 47%
Swan Island 19.6 +1.4 22.2 20th 13.9 +1.2 7.5 7th 16.4 49.1 v low 33%
Swansea (Francis Street) 20.6   26.7 20th 8.9   3.9 7th 9.4
Midlands (district 93)
Ross (The Boulevards) 19.7 +2.2 25.2 20th 6.3 +0.8 -0.8 24th 10.6 34.6 v low 31%
Southeast (district 94)
Campania (Kincora) 20.9 +2.0 26.6 5th 8.9 +1.6 1.3 17th 10.2 32.0 low 32%
Cape Bruny (Cape Bruny) 18.8 +2.4 24.3 5th 11.2 +1.3 7.5 7th 45.8 53.4 average 86%
Cape Bruny Lighthouse 18.3 +2.8 24.2 5th 11.5 +1.9 8.0 7th 46.8 79.1 low 59%
Dennes Point 19.3   26.2 5th 11.4   7.5 23rd 10.8
Dover 19.4 +2.6 26.0 20th 8.0 +0.9 2.2 7th 34.6 66.4 low 52%
Dunalley (Stroud Point) 19.6   26.1 5th 11.5   7.7 7th 13.4
Grove (Research Station) 19.9 +2.2 26.2 5th 6.5 +0.9 0.1 7th 21.6 45.3 low 48%
Hobart (Ellerslie Road) 20.4 +3.1 25.8 5th 10.8 +1.8 5.8 17th 8.8 50.5 v low 17%
Hobart Airport 20.6 +2.5 26.4 5th 9.9 +1.1 5.2 17th 8.0 41.2 v low 19%
Kunanyi (Mount Wellington Pinnacle) 9.8 +1.5 16.2 20th 3.5 +1.3 -1.1 7th 29.2 85.9 low 34%
Maatsuyker Island Lighthouse 15.8 +1.3 23.1 27th 11.1 +1.6 8.1 7th 102.2 107.8 average 95%
Melton Mowbray (North Stockman) 19.7 +2.4 25.2 5th 7.1 +1.3 1.0 18th 9.6 27.9 low 34%
Tasman Island 16.9 +2.0 22.3 20th 11.2 +1.4 7.7 7th 20.4 64.3 v low 32%
Tunnack Fire Station 17.7 +2.4 23.5 20th 6.3 +1.2 -1.8 17th 11.2 41.9 v low 27%
Derwent Valley (district 95)
Bushy Park (Bushy Park Estates) 20.6 +2.6 26.1 27th 6.0 -0.1 0.3 25th 13.4 45.8 v low 29%
Maydena Post Office 17.6 +1.7 24.0 27th 5.6 +0.1 0.3 24th 46.6 79.0 low 59%
Ouse Fire Station 20.0 +1.7 26.2 27th 5.7 +0.8 -1.1 24th 8.2 28.4 low 29%
Central Plateau (district 96)
Butlers Gorge 14.4 +1.3 20.7 20th 3.8 +0.4 -3.1 24th 81.8 141.3 low 58%
Lake St Clair National Park 14.2 +1.2 20.0 20th 4.0 +1.2 -2.3 24th 91.6 132.2 low 69%
Liawenee 13.6 +1.5 19.1 20th 3.1 +1.5 -4.9 22nd 25.0 64.2 low 39%
West Coast (district 97)
Cape Sorell 17.8 +2.3 22.7 20th 11.8 +1.5 8.6 24th 77.4 108.2 low 72%
Hartz Mountain (Keoghs Pimple) 11.9 +0.9 18.7 27th 5.7 +1.3 1.6 7th 70.0 68.9 average 102%
Low Rocky Point 17.2   25.0 27th 11.3   6.8 7th 105.8 109.1 average 97%
Mount Read 9.5 +0.7 17.1 20th 4.5 +1.2 0.2 7th 389.4 280.8 high 139%
Scotts Peak Dam 16.2 +1.5 22.9 27th 8.1 +1.4 4.2 7th 124.8 125.5 average 99%
Strahan Aerodrome 18.2 +1.5 25.6 27th 10.1 +1.7 5.1 22nd 143.0 114.7 high 125%
Warra 14.7 +1.3 21.5 27th 7.0 +1.3 2.2 14th 78.6 127.0 low 62%
King Island (district 98)
King Island Airport 19.2 +1.5 26.2 20th 11.6 +1.2 5.8 25th 38.8 56.7 low 68%
Flinders Island (district 99)
Flinders Island Airport 21.3 +2.6 26.9 20th 12.0 +1.3 4.8 23rd 20.8 58.0 low 36%
Hogan Island 19.8 +1.6 25.0 20th 13.9 +0.9 11.2 7th 20.6 51.9 v low 40%
Antarctica and Macquarie Island (district 300)
Macquarie Island 6.9 -0.1 9.1 5th 3.4 -0.3 -0.2 24th 120.6 93.8 high 129%

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 2 May 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
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