Tasmania in January 2015: above-average rainfall

January began with high temperatures across the State, with most stations reporting their highest daily maximum temperatures since early 2014 on the 3rd, and some recording their warmest day for two years. Temperatures peaked at 39.7 °C at Friendly Beaches and 39.5 °C at Swansea (Francis Street) on the east coast, both on 3 January.

January rainfall was generally above average, except in the northwest and Flinders Island. A significant rainfall event on the 13th and 14th saw 12 stations in the southeast observe their wettest January day on record when a complex low pressure system brought tropical moisture and rain to Tasmania. The highest daily rainfall total was 153.4 mm at Mount Wellington on the 14th, a January record for the site. Heavy rain in the middle of the month resulted in nine stations in the southeast recording their highest January total rainfall. Hobart (Ellerslie Road) recorded 71.6 mm on the 14th: its wettest day since 13 April 2011 and highest January daily total since 1916.

The middle of the month was windy across much of Tasmania. Maximum wind gusts between 16 and 18 January were the strongest recorded since spring 2014 for many locations. Wind gusts peaked at 128 km/h at both Hogan Island on the 14th and Maatsuyker Island Lighthouse on the 17th.

  • Rainfall generally above average, but near-average for the northwest
  • Record daily and monthly rainfall in the southeast
  • Warm nights in the east

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Extremes in January 2015
Hottest day 39.7 °C at Friendly Beaches on the 3rd
Warmest days on average 24.5 °C at Launceston (Ti Tree Bend)
Coolest days on average 12.4 °C at Mount Wellington
Coldest day 4.1 °C at Mount Wellington on the 28th
Coldest night -2.5 °C at Liawenee on the 27th
Coolest nights on average 4.7 °C at Mount Wellington
Warmest nights on average 15.0 °C at Swan Island
Warmest night 19.4 °C at Hobart (Ellerslie Road) on the 22nd
19.4 °C at Launceston (Ti Tree Bend) on the 22nd
Warmest on average overall 18.7 °C at Launceston (Ti Tree Bend)
Coolest on average overall 8.5 °C at Mount Wellington
Wettest overall 331.6 mm at Mount Read
Driest overall 15.6 mm at Westmoore
Wettest day 153.4 mm at Mount Wellington on the 14th
Strongest wind gust 128 km/h at Hogan Island on the 14th
128 km/h at Maatsuyker Island Lighthouse on the 17th

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 January daily rainfall
New record
(mm)
Old
record
Years of
record
Eaglehawk Neck (Jetty Road) 115.0 on the 14th 97.0 on the 25th in 1996 90
Opossum Bay 100.6 on the 14th 76.2 on the 22nd in 1997 83
Macquarie Island 63.4 on the 17th 34.0 on the 4th in 1985 67
Fort Direction 98.0 on the 14th 68.0 on the 22nd in 1997 65
Woodbridge 83.4 on the 14th 78.6 on the 22nd in 1997 64
Hobart Airport 61.0 on the 14th 53.6 on the 22nd in 1997 57
Taroona (Taroona Crescent) 102.4 on the 14th 76.0 on the 22nd in 1997 52
Fern Tree (Grays Road) 146.0 on the 14th 117.3 on the 3rd in 1970 48
Margate (Sunnyside) 123.2 on the 14th 79.5 on the 3rd in 1970 46
Rotherwood 47.0 on the 14th 39.4 on the 30th in 2004 43
Mount Wellington 153.4 on the 14th 128.2 on the 30th in 2004 34
Nierinna (Cuthberts Road) 99.8 on the 14th 61.8 on the 30th in 2004 23
Mount Seymour 37.0 on the 14th 35.6 on the 29th in 2004 21



Record highest January total rainfall
New record
(mm)
Old
record
Years of
record
Average for
January
Opossum Bay 145.4 134.4 in 1949 82 43.6
Dover 185.4 174.4 in 1970 79 54.1
Macquarie Island 187.2 153.7 in 1956 67 86.9
Woodbridge 160.8 129.6 in 2004 64 56.6
Taroona (Taroona Crescent) 140.6 128.8 in 1970 50 49.6
Margate (Sunnyside) 184.0 138.5 in 1970 47 53.0
Lucaston (Bakers Creek Road) 128.8 122.0 in 1986 37 57.8
Nierinna (Cuthberts Road) 181.0 161.8 in 2004 22 68.2
Fentonbury (Hamlet Downs) 93.3 91.2 in 1997 20 42.9

Highest January total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Years since
higher
Average for
January
Hobart (Ellerslie Road) 121.6 138.3 in 1924 91 47.6
Eaglehawk Neck (Jetty Road) 182.8 192.7 in 1893* 88 63.0
Wattle Hill 141.4 171.6 in 1986 29 52.2
Lunawanna 130.2 131.8 in 1986* 28 54.9
Huonville (Tutton Avenue) 112.8 131.1 in 1986* 23 44.1

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




Record highest January daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
January
Bicheno (Council Depot) 19.0 on the 4th 18.9 on the 31st in 2009 40 12.9



Summary statistics for January 2015
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
January
2015
Diff
from
average
Highest for
January
2015
Mean for
January
2015
Diff
from
average
Lowest for
January
2015
Total for
January
2015
Average
for
January
Rank of
January
2015
Fraction of
January
average
Northern (district 91)
Bridport (Sea View Villas) 21.7 -0.1 29.5 3rd 11.1 -1.9 4.7 19th 52.7 52.3 average 101%
Burnie (Round Hill) 21.5 +0.4 26.1 4th 13.1 +0.5 7.4 19th 41.9 44.0 average 95%
Cape Grim 19.0   27.3 3rd 12.9   8.5 2nd 45.4
Cape Grim BAPS (Comparison) 19.2 +0.3 27.7 3rd 13.0 -0.1 8.8 2nd 44.4 36.4 high 122%
Cressy Research Station 24.2 -1.0 34.1 3rd 10.9 +0.8 3.2 19th 47.4 31.3 high 151%
Devonport Airport 22.2 +0.9 29.6 14th 12.4 +0.2 5.1 19th 37.8 41.7 average 91%
Launceston (Ti Tree Bend) 24.5 +0.2 31.9 3rd 12.9 +0.6 5.5 26th 65.2 44.7 high 146%
Launceston Airport 23.8 -1.4 32.3 3rd 10.6 -0.1 1.8 26th 48.8 26.9 high 181%
Low Head 20.7 +0.4 27.0 14th 14.4 +0.2 9.2 19th 51.2 46.8 average 109%
Luncheon Hill (Forestry) 20.7 -0.6 32.4 3rd 10.1 -0.4 5.7 19th 61.6 76.0 average 81%
Marrawah 20.2 +0.1 30.0 3rd 11.9 0.0 8.2 24th
Scottsdale (West Minstone Road) 22.3 -0.6 31.7 3rd 11.5 +0.7 4.0 26th 76.8 56.6 average 136%
Sheffield School Farm 22.0 0.0 31.3 3rd 10.3 -0.3 3.5 19th 27.8 46.4 average 60%
Smithton Aerodrome 21.4 -0.2 29.4 3rd 10.4 -0.7 2.7 27th 40.2 41.0 average 98%
Wynyard Airport 21.8 +0.4 26.4 3rd 11.1 +0.1 4.3 19th 34.4 43.9 average 78%
East Coast (district 92)
Bicheno (Council Depot) 22.0 +0.6 37.4 3rd 13.7 +0.8 9.1 26th 98.5 53.0 high 186%
Fingal (Legge Street) 22.7 -0.8 36.2 3rd 10.8 +0.5 1.5 26th 48.0 43.5 average 110%
Friendly Beaches 23.1 0.0 39.7 3rd 13.4 +0.3 7.4 26th 110.4 58.4 high 189%
Lake Leake (Elizabeth River) 18.7 -0.8 31.4 3rd 8.7 +0.4 1.6 19th 52.6 54.3 average 97%
Larapuna (Eddystone Point) 21.6 +0.6 31.0 3rd 14.3 +0.7 8.2 26th 70.2 45.4 high 155%
Maria Island (Point Lesueur) 20.4 -1.2 30.7 3rd 13.7 +0.2 10.0 26th 84.8 33.1 v high 256%
Orford (Aubin Court) 21.6 -0.4 37.3 3rd 12.5 +0.7 7.2 26th 115.8 48.9 v high 237%
St Helens Aerodrome 22.5 -0.2 34.7 3rd 13.6 +0.5 7.7 26th 63.6 50.1 high 127%
Swan Island 20.8 0.0 31.2 3rd 15.0 +0.3 9.6 19th 55.2 44.6 high 124%
Swansea (Francis Street) 22.9   39.5 3rd 12.7   7.1 26th 93.2
Midlands (district 93)
Ross (The Boulevards) 23.3 -1.2 34.2 3rd 10.7 +0.2 2.7 19th 58.5 44.2 high 132%
Southeast (district 94)
Campania (Kincora) 22.8 -1.6 37.6 3rd 12.1 +0.8 6.6 28th 67.2 37.8 high 178%
Cape Bruny (Cape Bruny) 19.1 -0.6 28.5 21st 12.0 -0.1 6.9 18th 87.0 45.8 high 190%
Cape Bruny Lighthouse 18.3 0.0 27.2 21st     9.1 26th 91.8 62.0 high 148%
Dennes Point 20.2   26.3 3rd 13.1   9.2 18th 147.6
Dover 20.2 -0.5 27.1 3rd 10.2 0.0 5.0 20th 185.4 54.1 highest 343%
Dunalley (Stroud Point) 21.0   32.6 3rd 13.6   9.5 17th 108.0
Geeveston (Cemetery Road) 20.8 -1.0 34.5 3rd 10.4 +0.5 4.2 20th 127.6 57.2 v high 223%
Grove (Research Station) 21.4 -2.0 35.5 3rd 10.2 +0.7 4.7 20th 122.0 48.2 v high 253%
Hobart (Ellerslie Road) 21.5 -0.2 34.2 3rd 13.2 +1.3 8.9 17th 121.6 47.6 v high 255%
Hobart Airport 21.9 -0.7 34.1 3rd 13.0 +1.0 9.1 11th 96.4 40.8 v high 236%
Maatsuyker Island Lighthouse 17.1 +0.1 25.5 20th 11.2 +0.5 7.1 17th 102.6 79.4 high 129%
Melton Mowbray (North Stockman) 22.1 -1.9 37.9 3rd 10.7 +0.4 5.9 19th 67.4 32.3 v high 209%
Mount Wellington 12.4 -1.0 26.8 3rd 4.7 0.0 -1.1 19th 293.8 91.2 v high 322%
Tasman Island 17.6 -0.4 28.2 3rd 11.3 0.0 7.7 26th 122.0 75.3 high 162%
Tunnack Fire Station 20.1 -1.6 33.4 3rd 9.3 +0.5 3.8 19th 77.4 44.6 high 174%
Derwent Valley (district 95)
Bushy Park (Bushy Park Estates) 23.3 -0.6 37.6 3rd 10.6 +0.5 4.5 20th 72.0 41.0 high 176%
Maydena Post Office 20.7 -1.4 32.9 3rd 8.8 -0.1 4.0 2nd 116.2 63.1 high 184%
Ouse Fire Station 23.6 -1.9 38.9 3rd 9.9 -0.2 3.5 20th 72.4 29.0 v high 250%
Central Plateau (district 96)
Butlers Gorge 18.3 -0.6 31.4 3rd 6.4 0.0 0.4 2nd 156.2 97.2 high 161%
Lake St Clair National Park 18.6 -0.8 31.8 3rd 5.9 -0.4 -0.6 2nd 179.8 105.0 high 171%
Liawenee 16.7 -2.2 28.2 3rd 5.2 -0.1 -2.5 27th 83.4 49.6 high 168%
West Coast (district 97)
Cape Sorell 18.8 +0.6 25.9 21st 11.9 +0.1 8.5 2nd 95.4 69.3 high 138%
Hartz Mountain (Keoghs Pimple) 15.4 -2.4 29.7 3rd 6.6 -0.5 1.1 18th 153.2 68.6 v high 223%
Low Rocky Point 18.8   27.0 20th 11.4   5.6 2nd 90.8 81.7 average 111%
Mount Read 13.7 -0.6 26.2 3rd 5.3 -0.5 0.4 18th 331.6 208.8 high 159%
Scotts Peak Dam 19.9 -0.9 32.7 3rd 9.2 -0.1 4.8 2nd 157.8 109.8 high 144%
Strahan Aerodrome 21.1 +0.3 30.6 21st 10.3 -0.4 3.5 2nd 130.2 86.3 v high 151%
Warra 18.1 -1.4 31.4 3rd 7.9 -0.4 3.3 20th 202.4 113.1 v high 179%
King Island (district 98)
King Island Airport 20.7 -0.2 33.5 3rd 12.4 0.0 5.5 5th 61.0 38.5 high 158%
Flinders Island (district 99)
Flinders Island Airport 22.8 +0.7 37.1 3rd 13.7 +0.4 4.6 19th 30.1 44.7 average 67%
Hogan Island 21.6   36.4 3rd 14.6   12.0 19th 32.8 31.8 average 103%
Antarctica and Macquarie Island (district 300)
Macquarie Island 9.4 +0.6 11.1 29th 5.8 +0.5 3.6 19th 187.2 86.9 highest 215%

Notes

A Monthly Climate Summary is prepared to list 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, usually published in the fourth week of the month.

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 February 2015. 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
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Enquiries