Monday, 2 July 2007 - Monthly Climate Summary for Tasmania - Product code IDCKGC17R0
Tasmania in June 2007:
Winter
with a blast
Summary
In stark contrast to May, June 2007 was an exceptionally cold and dry month; many sites had their coldest or driest June on record. The unusual conditions were caused by high pressure systems south of the Bight and cold air surges over the Southern Ocean directing very cold air over the state.
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Details
Very cold: A change on the 1st of the month set the scene for an exceptionally cold month, with both overnight and daytime temperatures well below average. Minimum (overnight) temperatures were down by about 2°C for most of the state, but some spots were over 3 °C below normal for June. Some places had their coldest mean minimum temperature on record or coldest mean maximum (daytime) temperature on record, while others had their coldest temperatures for at least 20 years.
Frosts: With such cold conditions and a lack of many windy days, frosts were common around the state. Frost was recorded in each district of the state on almost every day, with a particularly severe run occurring from the 18th to 22nd. Just one example of the extent of the cold was Grove, which had 25 nights – including 23 in a row – where the temperature dropped to 2°C; a typical June sees around 15 such cold nights, and in May there was only one. Liawenee, a cold place at the best of times, had four nights below −8°C compared to an average of only one every two years. Similar frosty stories were told across the state: Wynyard and Eddystone Point recorded their lowest-ever June temperatures.
Very dry: In contrast to last month where some sites had their wettest May on record, many places in the northern and central parts of the state had record low rainfall for June. A good example is Launceston which had its wettest May (with 141 mm) followed by its driest June (with less than 6 mm) on record. Slow moving high pressure systems sitting south of the Great Australian Bight were close enough to the state to generally keep skies clear with the passage of only a few fronts during the month, bringing light and patchy rain or showers to most districts.
Further information
Tom Delfatti or Ian Barnes-KeoghanTasmania and Antarctica Climate Services Centre
Bureau of Meteorology
Phone (03) 6221 2043
Email climate.tas@bom.gov.au
Extremes
| Hottest day Highest temperature |
19.1°C at Bicheno (Council Depot) on the 6th |
|---|---|
| Warmest days on average Highest mean daily maximum temperature |
13.6°C at Eddystone Point and Flinders
Island Airport |
| Coolest days on average Lowest mean daily maximum temperature |
2.1°C at Mount Wellington |
| Coldest day Lowest daily maximum temperature |
−2.2°C at Mount Wellington on the 18th |
| Coldest night Lowest temperature |
−8.8°C at Liawenee on the 18th |
| Coolest nights on average Lowest mean daily minimum temperature |
−3.6°C at Liawenee |
| Warmest nights on average Highest mean daily minimum temperature |
9.3°C at Hogan Island |
| Warmest night Highest daily minimum temperature |
11.6°C at Hogan Island on the 10th |
| Wettest overall Highest total rainfall |
181.6 mm at Mount Victoria |
| Driest overall Lowest total rainfall |
2.8 mm at Verwood (Isis River) |
| Wettest day Highest daily rainfall |
80.6 mm at Mount Victoria on the 2nd |
| Highest wind gust |
113 km/h at Hogan Island on the 27th |
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Records
| Record lowest total June rainfall | |||||
|---|---|---|---|---|---|
| Total
rainfall for June 2007 (mm) | Previous lowest for June |
Years of record |
Normal for June |
||
| Frankford (Rossville) | 8.2 | 13.7 | in 1930 | 115 | 122.5 |
| Launceston Airport Comparison | 8.6 | 11.7 | in 1934 | 75 | 61.9 |
| Burnie (Round Hill) | 22.2 | 27.3 | in 1949 | 63 | 104.0 |
| Cradle Valley (Waldheim) | 45.6 | 52.4 | in 1930 | 61 | 273.4 |
| Forthside Research Station | 27.0 | 29.0 | in 1969 | 42 | 99.9 |
| Barrington Post Office | 21.8 | 36.2 | in 1969 | 41 | 117.3 |
| Savage River Mine | 76.4 | 87.5 | in 2005 | 40 | 198.2 |
| Scottsdale (West Minstone Road) | 4.8 | 19.2 | in 2006 | 36 | 103.7 |
| Westbury (Birralee Road) | 7.0 | 24.4 | in 2006 | 30 | 77.0 |
| Launceston (Ti Tree Bend) | 5.8 | 10.4 | in 2006 | 28 | 65.7 |
| Lowest total June rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
| Total
rainfall for June 2007 (mm) | Most recent lower for June |
Years since lower |
Normal for June |
||
| Bushy Park (Bushy Park Estates) | 9.0 | 3.2 | in 1930 | 77 | 48.5 |
| Yolla (Sea View) | 36.0 | 13.8 | in 1930 | 77 | 158.1 |
| Mole Creek | 13.6 | 13.3 | in 1930 | 74 | 114.6 |
| Elliott Research Station | 30.6 | 11.2 | in 1930 | 70 | 132.3 |
| Latrobe (Coal Road) | 17.7 | 17.6 | in 1937 | 69 | 109.6 |
| Ulverstone (Knights Road) | 25.0 | 18.6 | in 1937 | 69 | 110.4 |
| Ringarooma (Fry Street) | 20.8 | 18.3 | in 1934 | 68 | 132.6 |
| Irishtown | 51.0 | 42.7 | in 1951 | 51 | 132.6 |
| Lorinna | 23.0 | 19.1 | in 1937 | 33 | 147.0 |
| Wynyard Airport | 32.8 | 31.9 | in 1949 | 33 | 111.8 |
| Cape Sorell | 51.8 | 30.6 | in 1951 | 32 | 143.3 |
| Record lowest June daily maximum temperature | ||||||
|---|---|---|---|---|---|---|
| Lowest
daily maximum temperature in June 2007 (°C) | Previous lowest for June |
Years of record |
Normal for June |
|||
| Scottsdale (West Minstone Road) | 7.0 | on the 21st | 7.1 | on the 7th in 1973 | 28 | 12.6 |
| Record lowest June mean daily maximum temperature | |||||
|---|---|---|---|---|---|
| Mean
daily maximum temperature for June 2007 (°C) | Previous lowest for June |
Years of record |
Normal for June |
||
| Orford (Aubin Court) | 11.6 | 11.8 | in 1992 | 37 | 13.3 |
| Mount Wellington | 2.1 | 2.2 | in 1968 | 27 | 3.5 |
| Launceston (Ti Tree Bend) | 11.9 | 12.0 | in 1985 | 24 | 13.0 |
| Tarraleah Village | 7.2 | 7.4 | in 1992 | 23 | 8.8 |
| Fingal (Legge Street) | 10.6 | 10.8 | in 1992 | 22 | 12.8 |
| Geeveston (Cemetery Road) | 11.0 | = 11.0 | in 1992 | 20 | 12.2 |
| Lowest June mean daily maximum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
| Mean
daily maximum temperature for June 2007 (°C) | Most recent lower for June |
Years since lower |
Normal for June |
||
| Hobart (Ellerslie Road) | 10.8 | 10.3 | in 1953 | 54 | 11.9 |
| Swansea Post Office | 12.5 | 12.3 | in 1978 | 29 | 13.8 |
| Grove (Comparison) | 10.4 | 10.2 | in 1978 | 26 | 12.1 |
| Strathgordon Village | 7.9 | 7.7 | in 1986 | 21 | 9.5 |
| Scamander | 13.3 | 12.6 | in 1978 | 20 | 14.4 |
| Record lowest June temperature | ||||||
|---|---|---|---|---|---|---|
| Lowest
temperature in June 2007 (°C) | Previous lowest for June |
Years of record |
Normal for June |
|||
| Eddystone Point | −0.4 | on the 22nd | 0.1 | on the 7th in 1973 | 50 | 7.9 |
| Wynyard Airport | −3.5 | on the 18th | = −3.5 | on the 11th in 2006 | 21 | 4.2 |
| Record lowest June mean daily minimum temperature | |||||
|---|---|---|---|---|---|
| Mean
daily minimum temperature for June 2007 (°C) | Previous lowest for June |
Years of record |
Normal for June |
||
| Bushy Park (Bushy Park Estates) | −1.0 | = −1.0 | in 1989 | 73 | 2.2 |
| Grove (Comparison) | 0.5 | 0.7 | in 1983 | 52 | 2.4 |
| Strathgordon Village | 1.5 | 1.9 | in 1973 | 36 | 3.8 |
| Wynyard Airport | 0.9 | 1.4 | in 2006 | 22 | 4.2 |
| Lowest June mean daily minimum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
| Mean
daily minimum temperature for June 2007 (°C) | Most recent lower for June |
Years since lower |
Normal for June |
||
| Hobart (Ellerslie Road) | 3.3 | 2.9 | in 1937 | 70 | 5.2 |
| Hobart Airport | 3.1 | 3.0 | in 1963 | 44 | 4.6 |
| Macquarie Island | 0.1 | −0.1 | in 1972 | 35 | 1.5 |
| Swansea Post Office | 3.2 | 3.1 | in 1985 | 22 | 4.4 |
| Burnie (Round Hill) | 5.7 | 5.5 | in 1986 | 21 | 6.7 |
| Orford (Aubin Court) | 3.0 | 2.8 | in 1986 | 21 | 4.1 |
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Summaries
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 June 2007 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum
temperatures for June (°C) |
Minimum temperatures for June (°C) |
Rainfall for June (millimetres) |
||||||||||
| Mean for June 2007 |
Diff from normal |
Highest for June 2007 |
Mean for June 2007 |
Diff from normal |
Lowest for June 2007 |
Total for June 2007 |
Normal for June |
Rank of June 2007 |
Fraction of June normal |
|||
| Northern (district 91) | ||||||||||||
| Bridport | 13.2 | −0.8 | 15.5 | 28th | 4.5 | −1.8 | −0.5 | 22nd | 24.9 | 89.2 | very low | 28% |
| Burnie | 13.3 | −0.1 | 16.4 | 6th | 5.7 | −1.0 | 2.2 | 18th | 22.2 | 104.0 | lowest | 21% |
| Cape Grim BAPS | 11.8 | −1.1 | 14.6 | 16th | 6.9 | −1.8 | 3.5 | 18th | 97.8 | 80.9 | high | 121% |
| Cressy Research Station | 11.0 | 13.7 | 22nd | −0.7 | −5.2 | 20th | 3.2 | |||||
| Devonport Airport | 12.6 | −0.7 | 16.3 | 6th | 2.9 | −2.1 | −1.8 | 20th | 15.8 | 79.8 | very low | 20% |
| Launceston | 11.9 | −1.1 | 14.2 | 5th | 1.0 | −1.8 | −4.1 | 22nd | 5.8 | 65.7 | lowest | 9% |
| Launceston Airport | 11.0 | 13.6 | 6th | 0.7 | −4.0 | 20th | 7.4 | |||||
| Launceston Airport Comparison | 10.4 | −1.1 | 13.2 | 6th | 0.8 | −2.0 | −4.1 | 22nd | 8.6 | 61.9 | lowest | 14% |
| Low Head | 12.5 | −1.0 | 15.1 | 6th | 5.0 | −2.6 | 1.0 | 22nd | 11.2 | 74.7 | very low | 15% |
| Luncheon Hill | 10.5 | −0.7 | 14.0 | 28th | 3.3 | −2.4 | −1.0 | 19th | 62.2 | 146.2 | low | 43% |
| Marrawah | 12.0 | −0.7 | 15.2 | 16th | 5.5 | −1.9 | 1.8 | 18th | 73.0 | 124.6 | very low | 59% |
| Powranna | 10.5 | −1.4 | 13.6 | 22nd | 0.1 | −2.2 | −4.0 | 18th | 6.0 | 47.0 | very low | 13% |
| Scottsdale | 12.0 | −0.7 | 14.6 | 22nd | 3.1 | −1.1 | −1.7 | 22nd | 4.8 | 103.7 | lowest | 5% |
| Sheffield School Farm | 10.5 | −1.1 | 15.2 | 6th | 1.3 | −2.6 | −3.6 | 18th | 20.4 | 111.1 | very low | 18% |
| Smithton Aerodrome | 12.5 | −1.2 | 15.5 | 28th | 1.6 | −3.6 | −2.8 | 18th | 55.6 | 97.8 | low | 57% |
| Wynyard Airport | 12.7 | −0.5 | 16.5 | 6th | 0.9 | −3.3 | −3.5 | 18th | 32.8 | 111.8 | very low | 29% |
| East Coast (district 92) | ||||||||||||
| Bicheno | 13.3 | −1.2 | 19.1 | 6th | 6.1 | −0.5 | 2.9 | 10th | 84.8 | 60.6 | high | 140% |
| Eddystone Point | 13.6 | −0.1 | 15.8 | 6th | 7.4 | −0.6 | −0.4 | 22nd | 62.8 | 74.6 | normal | 84% |
| Fingal | 10.6 | −2.2 | 17.0 | 6th | 0.1 | −0.9 | −4.5 | 23rd | 42.6 | 64.6 | normal | 66% |
| Friendly Beaches | 12.0 | −2.2 | 16.9 | 6th | 4.9 | −1.5 | 0.9 | 24th | 94.8 | 38.6 | very high | 246% |
| Lake Leake | 7.6 | −1.4 | 12.4 | 6th | −1.3 | −2.0 | −6.9 | 18th | 28.6 | 86.7 | very low | 33% |
| Maria Island | 12.0 | 15.8 | 6th | 6.7 | 4.0 | 20th | 28.8 | |||||
| Orford | 11.6 | −1.7 | 15.3 | 6th | 3.0 | −1.1 | −1.2 | 25th | 45.0 | 51.2 | normal | 88% |
| Scamander | 13.3 | −1.1 | 18.4 | 6th | 5.1 | −0.3 | 0.2 | 22nd | 65.4 | 49.7 | high | 132% |
| St Helens Aerodrome | 12.7 | 18.1 | 6th | 4.3 | −1.0 | 22nd | 56.8 | |||||
| Swan Island | 13.1 | 15.4 | 16th | 7.8 | 3.8 | 20th | 64.6 | |||||
| Swansea Post Office | 12.5 | −1.4 | 17.5 | 6th | 3.2 | −1.2 | −1.5 | 18th | 48.8 | 57.3 | normal | 85% |
| Midlands (district 93) | ||||||||||||
| Ross | 10.5 | −1.2 | 13.3 | 6th | −0.9 | −2.8 | −6.0 | 18th | 12.8 | 36.7 | very low | 35% |
| Southeast (district 94) | ||||||||||||
| Bull Bay | 11.2 | −1.4 | 15.0 | 6th | 4.3 | −2.0 | 1.5 | 18th | 39.4 | 44.8 | normal | 88% |
| Campania | 11.8 | 15.5 | 5th | 1.6 | −2.8 | 18th | 18.4 | |||||
| Cape Bruny | 11.2 | −1.3 | 14.1 | 6th | 5.9 | −1.3 | 3.5 | 18th | 86.0 | 68.7 | normal | 125% |
| Cape Bruny Lighthouse | 10.9 | −0.7 | 13.9 | 6th | 5.8 | −0.9 | 3.5 | 18th | 109.6 | 90.1 | high | 122% |
| Dover | 11.5 | −1.1 | 15.0 | 5th | 1.9 | −2.0 | −1.8 | 18th | 57.8 | 79.1 | normal | 73% |
| Geeveston | 11.0 | −1.2 | 15.1 | 5th | 0.2 | −1.9 | −3.1 | 10th | 42.4 | 70.7 | low | 60% |
| Grove | 10.4 | −1.8 | 14.4 | 6th | 0.5 | −2.0 | −4.8 | 18th | 37.4 | 60.8 | low | 62% |
| Grove | 10.2 | 14.3 | 6th | −0.1 | −5.0 | 18th | 35.6 | |||||
| Hobart | 10.8 | −1.1 | 15.1 | 6th | 3.3 | −1.9 | −0.4 | 18th | 29.6 | 54.0 | low | 55% |
| Hobart Airport | 11.7 | −1.2 | 16.1 | 6th | 3.1 | −1.5 | −0.7 | 18th | 21.6 | 30.3 | normal | 71% |
| Maatsuyker Island Lighthouse | 10.6 | −0.8 | 13.3 | 25th | 6.6 | −0.6 | 3.1 | 21st | 56.4 | 118.9 | very low | 47% |
| Melton Mowbray | 9.6 | −2.4 | 13.2 | 10th | −0.7 | −3.0 | −6.4 | 18th | 10.0 | 32.4 | low | 31% |
| Mount Wellington | 2.1 | −1.4 | 10.0 | 9th | −2.1 | −1.3 | −5.6 | 18th | 36.8 | 63.3 | normal | 58% |
| Tasman Island | 10.0 | 13.3 | 16th | 5.6 | 1.2 | 18th | 87.6 | |||||
| Tunnack Fire Station | 8.2 | −1.9 | 11.4 | 5th | −0.2 | −2.5 | −6.3 | 18th | 30.2 | 48.9 | normal | 62% |
| Derwent Valley (district 95) | ||||||||||||
| Bushy Park | 10.3 | −0.9 | 15.5 | 5th | −1.0 | −3.1 | −6.0 | 18th | 9.0 | 48.5 | very low | 19% |
| Maydena Post Office | 9.3 | −1.5 | 14.0 | 28th | 0.3 | −2.2 | −3.5 | 18th | 32.8 | 100.9 | very low | 33% |
| Moogara | 7.8 | −1.2 | 12.0 | 5th | 0.9 | −1.5 | −1.5 | 24th | 21.4 | 67.8 | very low | 32% |
| Ouse Fire Station | 10.0 | 15.4 | 5th | −1.7 | −6.1 | 18th | 5.0 | |||||
| Tarraleah Village | 7.2 | −1.6 | 11.0 | 10th | −1.6 | −2.2 | −4.9 | 18th | 33.6 | 102.2 | very low | 33% |
| Central Plateau (district 96) | ||||||||||||
| Lake St Clair National Park | 6.1 | −1.6 | 9.2 | 28th | −2.5 | −2.8 | −5.5 | 18th | 51.8 | 173.5 | very low | 30% |
| Liawenee | 5.2 | 13.8 | 9th | −3.6 | −8.8 | 18th | 13.0 | |||||
| West Coast (district 97) | ||||||||||||
| Hartz Mountain | 5.8 | −1.4 | 13.0 | 9th | 0.3 | −2.0 | −3.0 | 21st | 77.2 | |||
| Mount Read | 3.4 | −1.2 | 9.5 | 28th | −1.0 | −2.0 | −5.2 | 21st | 148.8 | 360.1 | very low | 41% |
| Scotts Peak Dam | 8.2 | 11.4 | 28th | 1.8 | −0.5 | 27th | 113.0 | |||||
| Strahan Aerodrome | 11.4 | −1.2 | 15.5 | 26th | 2.8 | −3.0 | −0.3 | 14th | 78.6 | 164.9 | very low | 48% |
| Strathgordon Village | 7.9 | −1.5 | 10.6 | 28th | 1.5 | −2.3 | −1.5 | 19th | 102.9 | 216.4 | very low | 48% |
| Warra | 7.5 | 10.6 | 26th | 1.3 | −2.2 | 18th | 65.6 | |||||
| King Island (district 98) | ||||||||||||
| King Island Airport | 13.1 | −0.7 | 16.6 | 16th | 6.9 | −1.3 | 2.9 | 14th | 54.4 | 95.8 | very low | 57% |
| Flinders Island (district 99) | ||||||||||||
| Flinders Island Airport | 13.6 | −0.4 | 16.5 | 16th | 5.5 | −1.6 | 0.0 | 20th | 69.2 | 72.7 | normal | 95% |
| Hogan Island | 12.9 | 15.6 | 16th | 9.3 | 6.4 | 18th | 67.0 | |||||
| Macquarie Island (district 300) | ||||||||||||
| Macquarie Island | 4.4 | −0.6 | 7.6 | 16th | 0.1 | −1.4 | −5.5 | 7th | 80.0 | 76.5 | normal | 105% |
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Notes
This statement has been prepared based on information available at 12 pm on Monday 2 July 2007. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
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 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.
Further information
Ian Barnes-Keoghan or Tom DelfattiTasmania and Antarctica Climate Services Centre
Bureau of Meteorology
Phone (03) 6221 2043
Email climate.tas@bom.gov.au