UPDATED Thursday 17 January 2008 - Annual Climate Summary for Tasmania - Product code IDCKGC37R0
2007 was one of the warmest on record in Tasmania, with both daytime and overnight temperatures almost a degree above normal across the state and several sites setting records. It was also a generally dry year, although some significant rainfall events meant it was not as dry as 2006. The year fits with a pattern of relatively warm and dry years that Tasmania, and much of southeast Australia, has seen in recent decades.
A summary for all of Australia has also been prepared, as has one for each of the states. Monthly summaries are also routinely prepared.
This is an updated version of the summary originally issued on 3
January 2008. There have been some minor changes to rainfall figures.
Jump to: Extremes Records Summaries Notes the top
Dry, but not as dry as 2006: It was another drier-than-average year across Tasmania, but it was not quite as dry as the record-breaking 2006. Most months were drier than average in most places, but there were several marked rainfall events during 2007, including local thunderstorms, a wet May in the north, flooding rain in August, an exceptionally wet October in the west, and a wet December in the northwest. Overall, rainfall totals were below average for most of the state, and very much below average in parts of the East Coast and southern Midlands that missed out on the heavier rain events during the year.
Still no sustained wet: Although there were some significant rainfall events in 2007, there has not been an extended period of above-average rainfall in Tasmania since the end of 2005. The 24 months from January 2006 on reveal low rainfall records in many parts of the state. This is also part of a longer-term dry period affecting much of southeastern Australia, reaching back to at least late 1996.
Very warm days: Maximum (daytime) temperatures were above normal most of the time, and there were numerous individual monthly records set. A cold June countered some of this, but several sites (including some with a long period of records) had their highest mean daily maximum temperature. The first part of the year was particularly warm, with record runs of hot days in February. Perhaps fittingly, the last day of the year was hot: Ouse reached 38 °C and Tarraleah had its hottest day on record on the 31st. Averaged across the whole state, 2007 was 0.85 °C above normal, the third-warmest since records began in 1910.
Mostly warm nights: Despite some very cold events (in particular during June), minimum (overnight) temperatures were above average most of the time during 2007. A few sites (including Launceston) had their highest mean daily minimum temperature, and averaged across the state 2007 was the second-warmest on record, at 0.70 °C above normal. There was marked variability in minimum temperatures: Wynyard had its warmest night on record on 22 February and Eddystone Point had its coldest night on record on 22 June.
Very warm overall: The mean temperature (the average of the daily minimum and maximum temperatures) across Tasmania for the whole year was 0.77 °C warmer than normal, making 2007 Tasmania's second-warmest year (to 1988) since these records began in 1910. 2005 was also very warm, but 2006 was a bit cooler than normal, highlighting that although there is much variability from year to year most of the warmest years have been in recent decades. This Tasmania-wide average temperature has risen by almost one degree over the last century.
January was especially wet, with a combination of vigorous cold fronts, low pressure systems centred over the state and a few thunderstorms, including rainfall so intense in Hobart that it occurs about one every 50 years on average. Temperatures were above average.
February was very warm, with long periods of very warm temperatures: Launceston had an unprecedented nine straight days reaching 28 °C, and Hobart had three days in a row reaching 31 °C. It was record dry in the west, but several bursts of thunderstorms made it very wet in the northeast.
Summer (including December 2006) was warm overall, and despite the wet January was relatively dry in most areas, and particularly on the North-West Coast.
March had mostly cool days, but some especially hot ones, in particular on the 23rd. Westerlies brought plenty of rain to the western half, but the east was relatively dry.
April was very dry across the state, and some sites in the west, north coast and Midlands had their driest April on record. There were many warm days, with temperatures approaching 30 °C on the 9th and 10th.
May was the warmest on record in Tasmania, with Hobart's record of the last 125 years just one of those broken. Almost all the nights were warmer than average, and the temperature did not once drop below 5 °C in Hobart. It was very wet in the north and west, with Launceston among the sites having their wettest May on record.
Autumn was very warm overall, with several sites having their warmest autumn on record. Rainfall was average (or slightly above) across the state, apart from the southeast which missed out on most of the rain.
June was an exceptionally cold and dry month, and many sites had their coldest or driest June on record. Frosts were common across the state: an example was Grove with 25 nights, including 23 in a row, where the temperature dropped to 2 °C. Liawenee, a cold place at the best of times, had four nights below -8 °C. Many places in the northern and central parts of the state had record low rainfall for June.
July started cold with almost three weeks of below-average daytime temperatures, but a week of mild weather at the end helped restore some balance. Rain in the western two-thirds was below average again.
August was notable for the gale force winds and flooding rain that battered much of Tasmania around the 10th, but there was almost no rain in the last ten days of the month, and the central East Coast missed out on the heaviest falls during the flood event. Temperatures were again above normal.
Winter was relatively dry, despite the flooding rain of August. The cold of June and early July ensured temperatures were mostly below the winter averages.
September had rain close to average, mostly the result of a burst of westerly winds near the end of the month, but in the east it was yet another in the series of drier-than-usual months. Days were mostly warmer than normal, but there some quite cold nights.
October was dominated by westerly winds and cold fronts, above-average rain to the west but below-average to the east. There were also some very warm days but some very cold nights, along with strong wind gusts: typical spring weather for Tasmania.
November was among the driest and warmest Novembers on record for many parts of Tasmania, with a distinct shortage of rain-bearing systems and several very warm days.
Spring was another relatively dry season, despite the rains in the west in October. Warm days predominated, with several places having their warmest spring on record (or nearly so).
December was another warm month, with several outbreaks of thunderstorms. The highest temperature of the year was on the very last day. It was quite wet in some areas, but again relatively dry on the East Coast.
Hottest day Highest temperature |
38.0 °C at Ouse Fire Station on 31 Dec |
---|---|
Warmest days on average Highest mean daily maximum temperature |
19.2 °C at Launceston (Ti Tree Bend) |
Coolest days on average Lowest mean daily maximum temperature |
8.8 °C at Mount
Wellington |
Coldest day Lowest daily maximum temperature |
-2.2 °C at Mount
Wellington on 18 Jun |
Coldest night Lowest temperature |
-8.8 °C at Liawenee on
18 Jun |
Coolest nights on average Lowest mean daily minimum temperature |
2.0
°C at Liawenee |
Warmest nights on average Highest mean daily minimum temperature |
12.2 °C at Hogan Island |
Warmest night Highest daily minimum temperature |
21.4 °C at Flinders
Island Airport on 18 Feb |
Wettest overall Highest total rainfall |
at least 3450 mm at Mount Read (some days missing, but still wettest) |
Driest overall Lowest total rainfall |
261.2 mm at Tunbridge (Austin-Vale) |
Wettest day Highest daily rainfall |
110.8 mm at Strathgordon Village on 10 Aug |
Highest wind gust |
157 km/h at Maatsuyker Island
Lighthouse on 30 May |
Jump to: Extremes Records Summaries Notes the top
Record highest temperature | ||||||
---|---|---|---|---|---|---|
Highest temperature in 2007 (°C) |
Previous highest |
Years of record |
Normal annual |
|||
Tarraleah Village | 35.1 | on 31 Dec | 35.0 | on 24 Jan 1982 | 26 | 13.8 |
Record highest annual mean daily maximum temperature | |||||
---|---|---|---|---|---|
Mean daily maximum temperature for 2007 (°C) |
Previous annual highest |
Years of record |
Normal annual |
||
Cape Bruny Lighthouse | 15.9 | = 15.9 | in 1988 | 84 | 14.8 |
Bushy Park (Bushy Park Estates) | 19.1 | 19.0 | in 2000 | 70 | 17.6 |
Launceston Airport Comparison | 18.1 | 18.0 | in 1988 | 68 | 16.9 |
Hobart Airport | 18.4 | 18.3 | in 2005 | 49 | 17.4 |
Eddystone Point | 18.5 | 18.1 | in 2001 | 48 | 17.0 |
Grove (Comparison) | 18.0 | = 18.0 | in 2000 | 48 | 17.1 |
Strathgordon Village | 15.1 | 14.8 | in 1973 | 24 | 14.0 |
Launceston (Ti Tree Bend) | 19.2 | 18.8 | in 2000 | 23 | 18.4 |
Tarraleah Village | 15.0 | 14.7 | in 2000 | 22 | 13.8 |
Highest annual mean daily maximum temperature for at least 20 years | |||||
---|---|---|---|---|---|
Mean daily maximum temperature for 2007 (°C) |
Most recent higher annual |
Years since higher |
Normal annual |
||
Orford (Aubin Court) | 17.9 | 18.6 | in 1982 | 25 | 17.6 |
Record highest daily minimum temperature | ||||||
---|---|---|---|---|---|---|
Highest daily minimum temperature in 2007 (°C) |
Previous annual highest |
Years of record |
Normal annual |
|||
Wynyard Airport | 20.2 | on 22 Feb | 20.0 | on 24 Feb 1967 | 23 | 6.9 |
Record lowest temperature | ||||||
---|---|---|---|---|---|---|
Lowest temperature in 2007 (°C) |
Previous annual lowest |
Years of record |
Normal annual |
|||
Eddystone Point | -0.4 | on 22 Jun | 0.0 | on 10 Jul 1997 | 50 | 10.4 |
Record highest annual mean daily minimum temperature | |||||
---|---|---|---|---|---|
Mean daily minimum temperature for 2007 (°C) |
Previous annual highest |
Years of record |
Normal annual |
||
Maatsuyker Island Lighthouse | 9.5 | 9.4 | in 1999 | 70 | 8.5 |
Swansea Post Office | 8.8 | = 8.8 | in 1988 | 50 | 7.7 |
Launceston (Ti Tree Bend) | 8.1 | 7.8 | in 1981 | 23 | 7.1 |
Jump to: Extremes Records Summaries Notes the top
In this table, key sites have been highlighted to make them easier to find. This table is very wide and may not fit if printed.
Summary statistics for 2007 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
Mean for 2007 |
Diff from normal |
Highest for 2007 |
Mean for 2007 |
Diff from normal |
Lowest for 2007 |
Total for 2007 |
Normal annual total |
Rank of 2007 |
Fraction of annual normal |
|||
Northern (district 91) | ||||||||||||
Bridport | 17.8 | +0.4 | 27.9 | 22 Feb | 9.5 | +0.5 | -0.5 | 22 Jun | 647.2 | 703.5 | normal | 92% |
Burnie | 17.6 | +0.7 | 27.9 | 14 Jan | 10.6 | +1.4 | 2.2 | 18 Jun | 761.4 | 958.0 | low | 79% |
Cape Grim BAPS | 16.2 | +0.6 | 28.0 | 17 Feb | 10.9 | +0.3 | 3.0 | 14 Aug | 911.6 | 736.8 | high | 124% |
Cressy Research Station | 18.9 | 34.8 | 17 Feb | 6.2 | -5.2 | 20 Jun | 459.6 | |||||
Devonport Airport | 17.5 | +0.7 | 27.9 | 14 Jan | 8.9 | +0.8 | -1.8 | 20 Jun | 592.4 | 772.8 | low | 77% |
Launceston | 19.2 | +0.8 | 33.7 | 16 Jan | 8.1 | +1.0 | -4.1 | 22 Jun | 588.6 | 670.1 | low | 88% |
Launceston Airport | 18.8 | 34.8 | 17 Jan | 6.8 | -4.0 | 20 Jun | 471.8 | |||||
Launceston Airport Comparison | 18.1 | +1.1 | 33.6 | 17 Jan | 7.0 | +0.8 | -4.1 | 22 Jun | 541.2 | 678.0 | low | 80% |
Low Head | 17.0 | +0.4 | 25.9 | 22 Feb | 10.8 | +0.5 | 1.0 | 22 Jun | 550.8 | 645.4 | low | 85% |
Marrawah | 16.8 | +0.7 | 30.9 | 17 Feb | 9.9 | +0.6 | 1.5 | 4 Sep | 878.4 | 1063.3 | very low | 83% |
Powranna | 18.6 | +1.0 | 34.1 | 17 Feb | 6.7 | +0.7 | -4.0 | 18 Jun | 474.6 | 592.8 | low | 80% |
Scottsdale | 17.7 | +0.4 | 31.3 | 17 Jan | 7.7 | +0.6 | -2.5 | 22 Sep | 842.0 | 993.9 | low | 85% |
Sheffield School Farm | 16.8 | +0.7 | 31.6 | 17 Feb | 7.0 | +0.2 | -3.6 | 18 Jun | ||||
Smithton Aerodrome | 17.7 | +0.6 | 28.8 | 1 Mar | 8.1 | +0.5 | -2.8 | 18 Jun | 833.2 | |||
Wynyard Airport | 17.6 | +0.9 | 30.2 | 17 Jan | 7.5 | +0.7 | -3.5 | 18 Jun | 989.1 | 975.8 | normal | 101% |
East Coast (district 92) | ||||||||||||
Eddystone Point | 18.5 | +1.5 | 33.0 | 5 Jan | 11.2 | +0.8 | -0.4 | 22 Jun | 587.4 | 765.1 | low | 77% |
Fingal | 18.1 | +0.4 | 35.6 | 31 Dec | 6.1 | +0.9 | -4.5 | 23 Jun | 468.8 | 606.4 | low | 77% |
Friendly Beaches | 18.8 | +0.5 | 35.0 | 5 Jan | 9.9 | +0.6 | 0.9 | 24 Jun | ||||
Lake Leake | 14.5 | +0.7 | 31.2 | 17 Feb | 4.5 | +0.6 | -6.9 | 18 Jun | 543.8 | 830.8 | very low | 65% |
Maria Island | 17.6 | 28.3 | 18 Feb | 10.8 | 4.0 | 20 Jun | ||||||
Orford | 17.9 | +0.3 | 33.0 | 11 Jan | 8.3 | +0.6 | -1.3 | 5 Sep | 405.4 | 668.6 | very low | 61% |
Scamander | 18.6 | +0.6 | 33.0 | 20 Nov | -0.3 | 4 Aug | 576.2 | 661.0 | low | 87% | ||
St Helens Aerodrome | 18.3 | 31.8 | 11 Jan | 9.6 | -1.0 | 22 Jun | 595.0 | |||||
Swan Island | 17.3 | 27.0 | 23 Mar | 11.9 | 3.8 | 20 Jun | 711.2 | |||||
Swansea Post Office | 18.7 | +0.8 | 35.0 | 11 Jan | 8.8 | +1.0 | -1.5 | 18 Jun | 353.1 | 593.4 | very low | 60% |
Midlands (district 93) | ||||||||||||
Ross | 18.7 | +1.3 | 35.8 | 17 Feb | 6.3 | +0.8 | -6.0 | 18 Jun | 343.0 | 481.3 | very low | 71% |
Southeast (district 94) | ||||||||||||
Campania | 19.0 | 36.2 | 18 Feb | 7.8 | -2.8 | 18 Jun | 421.8 | |||||
Cape Bruny | 16.5 | +0.7 | 36.1 | 18 Feb | 9.6 | +0.4 | 2.4 | 14 Aug | 865.4 | |||
Cape Bruny Lighthouse | 15.9 | +1.1 | 35.0 | 18 Feb | 9.7 | +1.0 | 1.8 | 4 Aug | 1049.0 | 946.9 | high | 111% |
Dover | 16.9 | +0.5 | 36.8 | 18 Feb | 7.0 | +0.2 | -1.8 | 18 Jun | 761.4 | 877.0 | low | 87% |
Geeveston | 17.5 | +0.7 | 36.6 | 18 Feb | 6.6 | +0.5 | -3.9 | 14 Aug | 920.2 | 874.5 | normal | 105% |
Grove | 18.0 | +0.9 | 36.2 | 31 Dec | 6.3 | +0.5 | -4.8 | 18 Jun | 593.8 | 741.9 | low | 80% |
Grove | 17.9 | 35.5 | 31 Dec | 5.7 | -5.0 | 18 Jun | 610.4 | |||||
Hobart | 17.8 | +0.9 | 35.2 | 18 Feb | 9.2 | +0.9 | -0.4 | 18 Jun | 549.8 | 616.6 | normal | 89% |
Hobart Airport | 18.4 | +1.0 | 36.1 | 31 Dec | 8.8 | +0.8 | -0.7 | 18 Jun | 425.6 | 496.9 | low | 86% |
Maatsuyker Island Lighthouse | 14.5 | +0.6 | 31.8 | 16 Feb | 9.5 | +1.0 | 3.1 | 21 Jun | 992.2 | 1231.5 | low | 81% |
Melton Mowbray | 17.8 | +0.5 | 37.2 | 31 Dec | 6.5 | +0.6 | -6.4 | 18 Jun | 472.6 | 438.0 | normal | 108% |
Mount Wellington | 8.8 | +1.2 | 26.3 | 31 Dec | 2.1 | +0.9 | -5.6 | 18 Jun | ||||
Tasman Island | 14.7 | 28.0 | 17 Feb | 9.2 | 1.2 | 18 Jun | 813.0 | |||||
Tunnack Fire Station | 15.8 | +0.6 | 33.2 | 17 Feb | 5.5 | +0.4 | -6.3 | 18 Jun | 504.6 | 605.3 | low | 83% |
Derwent Valley (district 95) | ||||||||||||
Bushy Park | 19.1 | +1.5 | 36.2 | 18 Feb | 5.9 | 0.0 | -6.0 | 18 Jun | 477.0 | 575.9 | low | 83% |
Maydena Post Office | 16.8 | +0.7 | 35.0 | 31 Dec | 5.6 | +0.4 | -3.5 | 18 Jun | 1020.7 | 1198.0 | very low | 85% |
Moogara | 15.0 | +1.1 | 32.5 | 18 Feb | -1.5 | 24 Jun | 668.7 | 834.6 | very low | 80% | ||
Ouse Fire Station | 19.0 | 38.0 | 31 Dec | 5.6 | -6.1 | 18 Jun | ||||||
Tarraleah Village | 15.0 | +1.1 | 35.1 | 31 Dec | -4.9 | 18 Jun | 1005.8 | 1163.1 | low | 86% | ||
Central Plateau (district 96) | ||||||||||||
Lake St Clair National Park | 13.9 | +0.9 | 32.6 | 31 Dec | 3.1 | +0.4 | -5.5 | 18 Jun | 1819.3 | 1873.8 | normal | 97% |
Liawenee | 12.7 | 31.2 | 31 Dec | 2.0 | -8.8 | 18 Jun | 1014.0 | |||||
West Coast (district 97) | ||||||||||||
Hartz Mountain | 12.2 | 34.0 | 31 Dec | 4.3 | -3.0 | 21 Jun | 1017.8 | |||||
Mount Read | 9.5 | +0.8 | 27.2 | 16 Jan | 3.1 | +0.5 | -5.2 | 21 Jun | ||||
Scotts Peak Dam | 15.7 | 36.3 | 31 Dec | 6.6 | -1.5 | 10 Jul | 1743.8 | |||||
Strahan Aerodrome | 17.1 | +0.8 | 36.7 | 31 Dec | 8.2 | +0.4 | -1.8 | 15 Jul | 1540.0 | |||
Strathgordon Village | 15.1 | +1.1 | 35.0 | 31 Dec | -1.5 | 19 Jun | 2524.0 | 2524.8 | normal | 100% | ||
Warra | 14.2 | 34.1 | 31 Dec | 5.8 | -2.5 | 22 Aug | 1664.6 | |||||
King Island (district 98) | ||||||||||||
King Island Airport | 17.6 | +0.9 | 34.4 | 18 Feb | 10.4 | +0.6 | 0.5 | 21 Jul | 879.2 | 856.2 | normal | 103% |
Flinders Island (district 99) | ||||||||||||
Flinders Island Airport | 18.6 | +0.9 | 33.4 | 23 Mar | 10.6 | +0.8 | -1.2 | 23 Sep | 622.6 | 748.6 | low | 83% |
Hogan Island | 17.4 | 32.9 | 5 Jan | 12.2 | 5.6 | 13 Aug | 665.8 | |||||
Macquarie Island (district 300) | ||||||||||||
Macquarie Island | 6.6 | 0.0 | 12.2 | 31 Jan | 3.1 | +0.1 | -6.4 | 5 Jul | 963.0 | 962.4 | normal | 100% |
Jump to: Extremes Records Summaries Notes the top
This statement has been prepared based on information available at 2 pm on Thursday 14 January 2008. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
In the tables, normals 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 "normal" rain.
The normal for the state average statistics are calculated over the period from 1961 to 1990, the World Meteorological Organization standard.
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,
normal in decile 4 to 7, high in
decile 8 or 9 and very high is in decile 10).
The Fraction of normal shows how much rain has
fallen this time as a
percentage
of the long-term mean.