Tasmania in August 2019: cold nights, dry in the northeast

Low pressure systems brought several wet days to southeastern Tasmania during August, and westerly winds brought rain to the west, but the northeast had a mostly dry month. Cold nights were common, especially in the northeast and inland, and most days were cooler than average.

Wet in the southeast, but dry in the northeast

  • Westerly winds and cold fronts were dominant for much of the month, bringing rain and some snow to the western highlands
  • Low pressure systems brought several wet days to the southeast of Tasmania, including Hobart; some sites in the southeast had their wettest August for several years
  • Much of the north of the State, and especially the northeast, was drier than average
  • Overall total rainfall for Tasmania was about 3% below average
  • So far this year, rainfall has been well below average near the East Coast but above average in the western highlands

Cold nights, cool days

  • Cold nights were common during August, especially inland and in the north; Devonport Airport equalled its lowest August mean daily minimum temperature on record
  • Most days were cooler than average for August, especially in the northwest
  • On a few days temperatures struggled to reach double digits; on the 8th, Launceston had its coldest August day on record
  • Despite the generally cool weather, there were a few relatively mild days and nights, mostly in the east in windy weather ahead of cold fronts
  • Tasmania's mean maximum temperature was 0.06 °C above average, but its mean minimum temperature was 0.52 °C below average
  • Overall, Tasmania's mean temperature was 0.22 °C below average; cooler than August 2018 but warmer than August 2017
  • So far this year, temperatures have been above average across Tasmania, with days in the east especially warm

Wet with cold nights for Hobart

  • Total rainfall for Hobart (Ellerslie Road) was 98.6 mm, the wettest month since May 2018 and the wettest August since 2010
  • The mean daily maximum temperature for Hobart (Ellerslie Road) was 13.7 °C, which is 0.6 °C above the long-term average
  • Hobart's warmest day was 18.5 °C on the 15th, and the coolest day was on the 10th when the temperature reached just 8.8 °C
  • The mean daily minimum temperature for Hobart (Ellerslie Road) was 5.0 °C, which is 0.2 °C below the long-term average
  • The coldest morning was 1.2 °C on the 9th, and the warmest morning was on the 24th when the minimum temperature was 7.9 °C
  • Hobart's mean maximum temperature for the first eight months of 2019 is the highest on record, with the mean minimum temperature also well aboave average but rainfall down on average

Further information

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Extremes in August 2019
Hottest day 20.1 °C at Friendly Beaches on the 31st
Warmest days on average 14.7 °C at Swansea (Francis Street)
Coolest days on average 2.9 °C at kunanyi (Mount Wellington Pinnacle)
Coldest day -1.2 °C at kunanyi (Mount Wellington Pinnacle) on the 21st
Coldest night -8.5 °C at Liawenee on the 23rd
Coolest nights on average -2.3 °C at kunanyi (Mount Wellington Pinnacle)
Warmest nights on average 8.2 °C at Hogan Island
Warmest night 11.7 °C at Flinders Island Airport on the 16th
Warmest on average overall 10.5 °C at Hogan Island
Coolest on average overall 0.2 °C at kunanyi (Mount Wellington Pinnacle)
Wettest overall 484.9 mm at Lake Margaret Dam
Wettest day 81.2 mm at Mount Read on the 20th
Strongest wind gust 148 km/h at Maatsuyker Island Lighthouse on the 21st

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


Highest August total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
August
Seven Mile Beach (Royal Hobart Golf Club 83.4 86.2 in 1991* 48.3
Woodbridge 167.8 187.2 in 1994 94.8
Dover 155.2 161.8 in 1995 91.5

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




Record lowest August daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Launceston (Ti Tree Bend) 7.9 on the 8th 8.1 on the 2nd in 2004 37 13.8



Record lowest August temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Friendly Beaches -0.4 on the 5th -0.3 on the 30th in 2018 23 6.1



Record lowest August mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Devonport Airport 3.5 = 3.5 in 2015 27 5.0
Mount Read -1.1 -0.9 in 2017 21 0.0



Record lowest August mean temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Mount Read 0.9 1.0 in 1997 21 2.0



Summary statistics for August 2019
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
August
2019
Diff
from
average
Highest for
August
2019
Mean for
August
2019
Diff
from
average
Lowest for
August
2019
Total for
August
2019
Average
for
August
Rank of
August
2019
Fraction of
August
average
Northern (district 91)
Cape Grim 11.7   14.0 31st 7.6   4.8 9th 120.2
Cape Grim BAPS (Comparison) 12.0 -0.7 14.6 31st 7.6 -0.6 4.7 9th 134.4 100.8 high 133%
Cressy Research Station 12.9 0.0 16.1 20th 1.2 -1.2 -4.0 23rd 20.8 63.6 v low 33%
Devonport Airport 13.2 +0.1 16.2 1st 3.5 -1.5 -1.1 23rd 33.0 89.4 v low 37%
Launceston (Ti Tree Bend) 13.9 +0.1 17.2 1st 1.9 -1.7 -2.7 23rd 31.6 83.5 low 38%
Launceston Airport 12.6 -0.3 15.7 20th 1.2 -1.6 -3.2 30th 25.8 74.7 low 35%
Low Head 12.7 -0.3 14.6 24th 5.9 -1.3 1.8 30th 44.6 77.9 average 57%
Luncheon Hill (Forestry) 10.1 -1.1 14.7 31st 3.9 -0.9 0.8 11th 153.6 209.8 low 73%
Marrawah 12.2 -0.5 15.8 31st 6.4 -0.6 3.5 29th 126.0 134.4 average 94%
Scottsdale (West Minstone Road) 12.2 -0.3 14.7 13th 2.6 -1.3 -2.8 23rd 56.6 118.2 low 48%
Sheffield School Farm 11.4 -0.1 14.5 13th 2.5 -1.1 -1.0 30th 61.2 128.2 low 48%
Smithton Aerodrome 12.9 -0.7 15.2 31st 4.0 -1.1 -1.1 29th 116.6 124.4 average 94%
Wynyard Airport 13.3 +0.1 17.2 13th 2.7 -1.2 -1.6 30th 87.6 116.6 low 75%
East Coast (district 92)
Fingal (Legge Street) 13.6 +0.3 17.9 24th 0.1 -1.1 -5.2 23rd 37.6 59.3 average 63%
Friendly Beaches 14.6 0.0 20.1 31st 4.5 -1.6 -0.4 5th 49.4 51.1 average 97%
Lake Leake (Elizabeth River) 9.5 +0.1 15.1 18th -0.9 -1.5 -5.4 5th 50.2 77.9 average 64%
larapuna (Eddystone Point) 13.9 +0.4 15.8 26th 6.4 -0.5 2.8 12th 51.8 70.3 average 74%
Maria Island (Point Lesueur) 13.2 -0.2 17.8 20th 6.6 -0.8 4.2 8th 46.2 39.9 average 116%
Orford (Aubin Court) 13.9 -0.1 18.5 24th 3.3 -0.9 -0.8 23rd 64.2 60.7 average 106%
St Helens Aerodrome 14.1 -0.1 17.0 30th 4.2 -1.0 -0.6 23rd 30.2 56.4 average 54%
Swan Island 13.2 -0.3 15.6 18th 7.6 -0.7 4.0 4th 35.0 60.3 low 58%
Swansea (Francis Street) 14.7   19.6 20th 3.5   -1.9 23rd 27.8
Midlands (district 93)
Ross (The Boulevards) 12.2 -0.3 16.6 20th 0.3 -1.8 -5.0 23rd 30.8 45.1 average 68%
Southeast (district 94)
Campania (Kincora) 14.1 0.0 18.5 31st 3.7 -0.2 -2.0 9th 58.4 50.8 average 115%
Cape Bruny (Cape Bruny) 12.7 -0.1 18.0 31st 6.1 -0.5 3.0 19th 111.6 89.2 high 125%
Cape Bruny Lighthouse 12.4 +0.5 17.2 18th 6.5 +0.2 3.7 19th 118.3 92.9 high 127%
Dennes Point 13.0   18.3 24th 6.2   3.6 8th 76.0
Dover 13.1 0.0 18.7 31st 3.4 -0.5 0.2 8th 155.2 91.5 v high 170%
Dunalley (Stroud Point) 13.1   18.3 31st 5.8   2.4 5th 64.8
Grove (Research Station) 13.4 +0.1 17.6 24th 2.1 -0.5 -2.3 23rd 112.8 86.7 high 130%
Hobart (Ellerslie Road) 13.7 +0.6 18.5 15th 5.0 -0.2 1.2 9th 98.6 53.8 high 183%
Hobart Airport 13.9 +0.4 18.8 31st 4.6 -0.1 0.4 8th 77.6 46.6 high 167%
kunanyi (Mount Wellington Pinnacle) 2.9 +0.1 7.1 31st -2.3 -0.6 -4.6 19th 55.0 80.5 average 68%
Maatsuyker Island Lighthouse 10.6 -0.6 15.2 31st 6.1 -0.4 4.0 19th 111.2 123.5 average 90%
Melton Mowbray (North Stockman) 12.3 -0.3 17.0 31st 2.1 -0.4 -5.0 9th 37.6 49.5 average 76%
Tasman Island 11.0 -0.4 15.4 24th 5.6 -0.8 2.1 20th 112.4 77.7 high 145%
Tunnack Fire Station 10.6 +0.1 14.8 24th 0.9 -0.9 -4.5 9th 44.0 58.0 average 76%
Derwent Valley (district 95)
Bushy Park (Bushy Park Estates) 14.0 +0.8 19.3 24th 2.4 +0.1 -2.5 5th 63.4 54.4 average 117%
Maydena Post Office 11.1 -0.7 16.3 18th 2.6 +0.1 -0.9 5th 141.4 152.0 average 93%
Ouse Fire Station 13.4 -0.1 17.3 24th 1.8 -0.1 -4.2 9th 55.8 63.5 average 88%
Central Plateau (district 96)
Butlers Gorge 7.9 -0.1 14.8 30th 0.1 +0.1 -4.7 9th 245.0 185.9 high 132%
Lake St Clair National Park 7.6 -0.5 14.6 30th -0.6 -0.7 -3.7 23rd 281.4 240.4 average 117%
Liawenee 6.3 -0.2 14.7 30th -2.2 -0.8 -8.5 23rd 59.8 128.8 low 46%
West Coast (district 97)
Cape Sorell 12.3 +0.1 15.1 31st 7.1 -0.2 3.9 11th 124.0 148.3 average 84%
Hartz Mountain (Keoghs Pimple) 5.8 -0.8 12.5 31st 0.3 -1.0 -1.9 19th 156.6 121.9 high 128%
Low Rocky Point 11.8   16.9 31st 6.6   3.5 9th
Mount Read 3.0 -1.0 7.5 31st -1.1 -1.1 -3.2 20th 451.0 356.7 high 126%
Scotts Peak Dam 9.9 -0.5 15.0 31st 3.2 -0.2 0.7 9th 298.8 228.3 high 131%
Strahan Aerodrome 12.5 -0.5 17.6 31st 5.4 -0.3 0.0 9th 179.4 181.1 average 99%
Warra 9.0 -0.4 14.3 31st 2.5 +0.1 -0.1 8th 288.8 240.3 high 120%
King Island (district 98)
King Island Airport 13.1 -0.5 17.2 31st 7.4 -0.3 1.2 30th 84.2 115.4 average 73%
Flinders Island (district 99)
Flinders Island Airport 13.4 -0.4 16.9 18th 6.2 -0.4 -1.5 30th 49.4 75.5 average 65%
Hogan Island 12.8 -0.5 16.3 24th 8.2 -0.5 5.6 19th 66.8 73.4 average 91%
Note: From 2017, information about Macquarie Island can be found in the climate summary for the Remote Islands and Antarctica

Notes

The Monthly 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 Monday 2 September 2019. 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.

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