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MONTHLY CLIMATE SUMMARY - TASMANIA
Record dry June in some areas: Rainfall was very low over
most of the state during June, with totals below 10 mm common in the
Midlands, the East Coast and the Derwent Valley. Several sites in the
central north (including Launceston) and some around Hobart
(including Sorell and Mangalore, both with over 100 years of
record) had their driest-ever June and many more had their driest June for several decades.
Hobart's 6.6 mm was almost 50 mm less than normal for June. It was
Hobart's second-driest June since observations began in 1882 (the
driest was in 1979), and its driest month since November 2003.
There was rain scattered through the month in most areas, but falls
were generally light. Apart from some falls in the northwest at the
very start of the month, and through the north around the 23rd, most of
the heavier rain was confined to the western highlands.
An extended "cold and dry spell": The spell of mostly patchy or light
rain and cold temperatures in many areas extends back to about 11 May. The six or so weeks prior to that
had been cold but very wet; some places had their wettest or coldest ever April or their coldest ever May. Rainfall
totals for the first half of the year are below normal in almost all
parts of the state, and especially so in the north and east.
Record cold nights: Minimum (overnight) temperatures were
below normal in all but the far southwest, and by up to 2.5 degrees in the
central north. Several sites, including Launceston, recorded their coldest-ever June mean daily minimum temperatures, sometimes by a significant margin.
Almost all nights were colder than normal, often by several degrees. Despite may cold mornings, only Wynyard recorded its coldest-ever June night.
Cool, but not cold, days: Most days were cooler than normal,
but often by not very much. The first week was quite cold, but a few
warmer days scattered through the month helped to balance these.
Averaged across the month, maximum (daytime) temperatures were mostly
between 0.1 and 0.5 degrees below normal. At just a handful of sites
(Strathgordon, Grove, Maatsuyker Island and Ross) mean June maxima were
the coldest they had been since 1995.
High pressure systems the cause: Since about mid-May, Tasmania's weather has often been under the influence of strong high pressure systems. These have suppressed the westerly winds and cold fronts that usually bring a great deal of our rain at this time of year. They have also allowed for light winds and clear skies overnight - especially in the north - and so provided the cold and frosty nights. The same highs have been at the heart of one of the coldest and driest Junes in many parts of Australia.
Included in this summary are a table of extremes, some new records, and summaries for sites across Tasmania.
Weather extremes during June 2006 | ||
|---|---|---|
| Highest temperature Hottest day |
18.2 °C | Scamander on 15th |
| Highest mean daily maximum temperature Warmest days on average |
14.3 °C | Bicheno (Council Depot) |
| Lowest mean daily maximum temperature Coolest days on average |
3.2 °C | Mount Wellington |
| Lowest daily maximum temperature Coldest day |
0.0 °C | Mount Read on 11th |
| Lowest temperature Coldest night |
-9.0 °C | Liawenee on 7th |
| Lowest mean daily minimum temperature Coldest nights on average |
-2.9 °C | Liawenee |
| Highest mean daily minimum temperature Mildest nights on average |
9.4 °C | Hogan Island |
| Highest daily minimum Warmest night |
12.7 °C | Eddystone Point on 23rd |
| Highest total rainfall Wettest overall |
213.8 mm | Mount Read |
| Lowest total rainfall Driest overall |
2.8 mm | Bothwell (Clyde River) |
| Highest daily rainfall Wettest day |
63.8 mm | Stanley (Marine Parade) on 1st |
Lowest Mean Daily Minimum Temperature for at least 20 years for June |
|||
|---|---|---|---|
|
Mean daily minimum temperature for June 2006 (°C) |
Most recent lower for June |
||
| Swansea Post Office | 3.2 | 3.1 | in 1985 |
| Burnie (Round Hill) | 5.9 | 5.5 | in 1986 |
| Eddystone Point | 6.7 | 6.6 | in 1986 |
Record Lowest Temperature for June |
||||||
|---|---|---|---|---|---|---|
|
Lowest temperature in June 2006 (°C) |
Previous lowest for June |
Years of record |
||||
| Wynyard Airport | -3.5 | on 11th |
-3.3 | on 18th in 2002 |
21 | |
Summary statistics for June 2006 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures for June (°C) |
Minimum temperatures for June (°C) |
Rainfall for June (mm) |
|||||||
| Mean for 2006 | Difference from normal | Highest for 2006 | Mean for 2006 | Difference from normal | Lowest for 2006 | Total for 2006 | Normal total | Ranking | |
| Hobart | 11.9 | -0.1 | 15.0 | 4.9 | -0.3 | 0.8 | 6 | 54 | very low |
| Launceston | 13.0 | -0.1 | 16.5 | 0.2 | -2.7 | -3.0 | 10 | 68 | lowest |
| Burnie | 13.4 | 0 | 16.2 | 5.9 | -0.8 | 1.7 | 30 | 105 | very low |
| Devonport |
12.8 | -0.5 | 15.5 | 3.4 | -1.8 | -1.9 | 14 | 81 | lowest |
| Swansea | 13.6 | -0.3 | 16.6 | 3.2 | -1.2 | -1.7 | 6 | 57 | very low |
| Strahan |
12.4 | -0.2 | 15.5 | 5.3 | -0.5 | -0.7 | 81 | 169 | very low |
| Strathgordon |
9.2 | -0.3 | 12.3 | 4.1 | +0.3 | 0.2 | 167 | 219 | normal |
| King Island Airport | 13.3 | -0.6 | 14.7 | 6.5 | -1.9 | 1.7 | 53 | 97 | very low |
| Flinders Island Airport | 13.4 | -0.7 | 15.8 | 4.6 | -2.5 | -0.9 | 19 | 73 | very low |
| Bicheno | 14.3 | -0.2 | 17.7 | 5.1 | -1.6 | 0.8 | 34 | 60 | normal |
| Bridport | 13.5 | -0.5 | 15.7 | 5.0 | -1.4 | 0.0 | 12 | 95 | lowest |
| Bull Bay | 12.4 | -0.3 | 15.5 | 5.5 | -0.9 | 2.4 | 15 | 45 | lowest |
| Bushy Park | 12.4 | +1.2 | 15.9 | 1.2 | -0.9 | -3.8 | 7 | 49 | very low |
| Campania | 13.2 | 16.2 | 2.3 | -2.4 | 4 | ||||
| Cape Bruny | 11.7 | -0.8 | 15.4 | 6.7 | -0.6 | 3.9 | 38 | ||
| Cape Bruny Lighthouse | 11.6 | 0 | 14.9 | 6.6 | -0.1 | 4.1 | 36 | 90 | very low |
| Cape Grim |
12.8 | -0.2 | 14.3 | 7.8 | -1.0 | 3.1 | 67 | 80 | low |
| Cressy | 11.7 | 15.3 | -1.7 | -6.1 | 14 | ||||
| Dover | 12.4 | -0.2 | 15.7 | 3.3 | -0.6 | -1.1 | 39 | 79 | low |
| Eddystone Point | 14.0 | +0.3 | 16.5 | 6.7 | -1.3 | 2.6 | 14 | 75 | very low |
| Fingal | 12.0 | -0.8 | 15.4 | -1.5 | -2.6 | -5.6 | 20 | 65 | very low |
| Friendly Beaches | 13.8 | -0.5 | 16.6 | 4.4 | -2.3 | 0.5 | 16 | ||
| Geeveston | 12.0 | -0.3 | 15.2 | 2.2 | 0 | -3.2 | 29 | 72 | very low |
| Grove | 12.4 | +0.2 | 15.6 | 1.8 | -0.6 | -2.6 | 13 | 61 | very low |
| Grove | 12.3 | 15.7 | 1.3 | -3.1 | 13 | ||||
| Hartz Mountain | 5.8 | -1.6 | 9.4 | 1.4 | -1.0 | -1.9 | 50 | ||
| Hobart Airport | 13.2 | +0.4 | 16.6 | 4.2 | -0.4 | -0.7 | 6 | 31 | very low |
| Hogan Island | 13.2 | 14.4 | 9.4 | 7.1 | 21 | ||||
| Lake Leake | 8.5 | -0.5 | 10.7 | -1.2 | -2.0 | -5.7 | 18 | 87 | very low |
| Lake St Clair | 7.2 | -0.5 | 9.6 | -0.9 | -1.3 | -6.2 | 91 | 181 | low |
| Launceston Airport | 11.8 | 15.9 | 0.0 | -4.9 | 9 | ||||
| Launceston Airport Comparison | 11.3 | -0.1 | 15.3 | 0.2 | -2.7 | -3.8 | 11 | 63 | lowest |
| Liawenee | 6.3 | 9.4 | -2.9 | -9.0 | 32 | ||||
| Low Head | 12.7 | 14.1 | 5.5 | 2.4 | 15 | ||||
| Luncheon Hill | 10.6 | -0.5 | 13.0 | 5.1 | -0.8 | 0.0 | 138 | 154 | normal |
| Maatsuyker Island |
10.8 | -0.7 | 13.9 | 7.4 | +0.2 | 4.3 | 83 | 120 | low |
| Maria Island | 12.8 | 16.3 | 6.9 | 4.0 | 9 | ||||
| Macquarie Island | 4.9 | -0.1 | 7.6 | 1.2 | -0.3 | -4.5 | 79 | 76 | normal |
| Marrawah | 12.7 | -0.1 | 14.8 | 7.0 | -0.4 | 3.5 | 92 | 126 | low |
| Maydena | 10.4 | -0.5 | 13.1 | 2.4 | -0.1 | -4.2 | 47 | 106 | low |
| Melton Mowbray | 11.4 | -0.7 | 13.9 | 1.0 | -1.4 | -6.8 | 6 | 35 | lowest |
| Moogara | 8.6 | -0.4 | 11.2 | 2.2 | -0.3 | -2.0 | 28 | 71 | low |
| Mount Read | 3.8 | -0.9 | 8.1 | 0.3 | -0.8 | -3.8 | 214 | 381 | low |
| Mount Wellington | 3.2 | -0.3 | 6.8 | -1.0 | -0.2 | -4.6 | 37 | 64 | normal |
| Orford | 12.7 | -0.7 | 16.3 | 3.3 | -0.8 | -2.0 | 13 | 51 | very low |
| Ouse | 11.9 | 15.3 | 0.1 | -6.1 | 5 | ||||
| Powranna | 11.5 | -0.4 | 15.5 | 0.3 | -2.2 | -4.8 | 13 | 50 | lowest |
| Ross | 11.0 | -0.8 | 14.5 | -1.3 | -3.4 | -6.4 | 9 | 39 | lowest |
| Scamander | 14.0 | -0.5 | 18.2 | 4.1 | -1.3 | 0.8 | 24 | 49 | low |
| Scottsdale | 12.2 | -0.5 | 14.3 | 2.6 | -1.6 | -1.1 | 19 | 107 | lowest |
| Sheffield | 11.5 | -0.2 | 14.8 | 2.2 | -2.0 | -1.6 | 48 | 120 | lowest |
| Smithton |
13.2 | -0.6 | 14.9 | 2.9 | -2.5 | -1.9 | 78 | ||
| St Helens |
13.4 | 17.3 | 3.2 | 0.0 | 15 | ||||
| Swan Island | 13.0 | 15.2 | 7.6 | 3.6 | 16 | ||||
| Tarraleah |
8.5 | -0.3 | 11.4 | -0.4 | -1.0 | -5.6 | 59 | 103 | low |
| Tasman Island | 10.5 | 13.0 | 6.7 | 2.5 | 38 | ||||
| Tunnack |
9.3 | 12.1 | 0.6 | -4.8 | 11 | ||||
| Warra | 8.6 | 11.7 | 2.9 | -0.9 | 88 | ||||
| Wynyard |
13.1 | -0.1 | 15.5 | 1.4 | -2.9 | -3.5 | 38 | 114 | very low |
This statement has been prepared based on information available at 9 am on Monday 3 July 2006 . Although every effort has been made to check them, it is possible that results will change as new information becomes available.
"Normals" are based on all available years of record, which vary widely from site to site . Sites without normals shown do no have sufficient record for them to be calculated reliably.
The "Ranking" indicates about where rainfall this time ranks in the climate record for the site.
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