Victoria in June 2011: Rainfall less than that usually received

Highlights:

  • Overnight temperatures near to those in most years
  • Daytime temperatures slightly warmer than those in most years
  • Rainfall less than that in most years

Summary

Bureau of Meteorology data show that across the State of Victoria, overnight minimum temperatures were near to those usually experienced. Daytime maximum temperatures at most localities were slightly warmer than those registered in the past. Total rainfall for the month was generally less than that usually recorded.

Specifically over the northern plains, minimum temperatures were slightly cooler than those usually experienced  By contrast, daytime maximum temperatures at most localities were warmer than those registered in the past. Total rainfall for the month was generally much less than that usually recorded.

However, in southern districts, minimum temperatures were near to those usually experienced. Daytime maximum temperatures at most localities were slightly warmer than those registered in the past. Total rainfall for the month was generally slightly less than that usually recorded.

Records

Some sites had their highest total June rainfall on record.

Some sites had their lowest total June rainfall on record.

Some sites had their lowest total June rainfall for at least 10 years.

Some sites had their coldest June day (lowest maximum temperature) on record.

Some sites had their highest June mean daily maximum temperature for at least 10 years.

Maps

There is a map of total rainfall below.

There is a map of rainfall deciles below.

Drivers

The powerful La Nia event of the past year or so has finally ended, and sea surface temperatures across the tropical Pacific Ocean have largely returned to normal (bringing an exceptionally wet period to a conclusion). The Southern Oscillation Index, which had been strongly positive during the La Nia event, is now also close to normal (zero). However, sea surface temperatures across waters to the south of the continent are mostly slightly above normal.

The pressure patterns during June were driven by a combination of strong high pressure systems over west Indian Ocean high latitudes and a trough of low pressure over Australian longitudes. This resulted in a series of fast moving frontal systems amplifying as they approached Western Australia, and then weakening before passing across southeastern Australia - hence, these were mostly not accompanied by very much rain falling in Victoria (but several of them retained sufficient strength to be associated with strong northerly winds ahead of their passage).

Further information

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Extremes in June 2011
Hottest day 21.2 C at Swan Hill Aerodrome on the 1st
Warmest days on average 17.1 C at Mildura Airport
Coolest days on average 0.7 C at Mount Hotham
Coldest day -4.1 C at Mount Hotham on the 7th
Coldest night -7.3 C at Mount Hotham on the 8th
Coolest nights on average -2.9 C at Mount Hotham
Warmest nights on average 10.0 C at Wilsons Promontory Lighthouse
Warmest night 13.5 C at Cape Otway Lighthouse on the 3rd
Wettest overall 265.4 mm at Weeaproinah
Highest wind gust 135 km/h at Wilsons Promontory Lighthouse on the 7th
135 km/h at Mount Hotham on the 21st

Maps

Rainfall deciles

Map of Rainfall deciles

Rainfall totals

Map of Rainfall totals


Record highest total June rainfall
Total rainfall
for June 2011 (mm)
Previous highest
for June
Years of
record
Average for
June
Foster Hoddle 141.4 119.0 in 2002 16 88.0
Bullumwaal 73.4 54.0 in 2010 10 34.6



Record lowest total June rainfall
Total rainfall
for June 2011 (mm)
Previous lowest
for June
Years of
record
Average for
June
Boonah 21.8 33.8 in 2006 11 81.0
Moorabool River at Lal Lal 17.2 20.6 in 2006 11 42.7
Myrrhee (Boggy Ck at Angleside) 22.2 25.2 in 2008 11 75.9

Lowest total June rainfall for at least 10 years
Total rainfall
for June 2011 (mm)
Most recent June
this low or lower
Years since
lower
Average for
June
Nagambie (Goulburn Weir) 12.8 12.5 in 1944 61 53.4
Cairn Curran Reservoir 8.4 4.9 in 1958 52 43.5
Kinglake West (Wallaby Creek) 28.4 24.4 in 1969 42 129.3
Toorourrong Reservoir (Toorourrong) 18.8 15.1 in 1969 42 66.3
Eppalock Reservoir 13.0 8.6 in 1974 37 47.3
Elmore 8.9 4.8 in 1975 36 48.7
Murchison 7.6 4.1 in 1975 32 60.1
Canary Island 10.8 1.8 in 1984 26 36.0
Red Cliffs (Post Office) 1.8 0.0 in 1984 26 23.1
Birchip (Woodlands) 10.4 8.4 in 1986 25 35.6
Korong Vale (Burnbank) 14.6 9.0 in 1986 25 40.6
Dunolly 17.8 11.2 in 1986 24 52.7
Ultima (Post Office) 6.2 3.0 in 1984 24 32.7
Boort 12.6 10.2 in 1986 16 38.6
Warracknabeal Museum 14.8 11.6 in 1997 14 37.3
Avoca (Homebush) 22.0 21.6 in 1997 13 60.5
Kerang 15.8 13.8 in 1998 13 35.5
Swan Hill Aerodrome 8.4 0.0 in 1997 13 23.2



Record lowest June daily maximum temperature
Lowest daily maximum
temperature
in June 2011 (C)
Previous lowest
for June
Years of
record
Average for
June
Edi Upper 5.8 on the 7th 6.2 on the 28th in 2010 24 13.1
Mount Baw Baw -2.6 on the 21st -2.1 on the 10th in 2009 13 3.5
Colac (Mount Gellibrand) 7.4 on the 21st 8.0 on the 28th in 2002 11 12.3



Highest June mean daily maximum temperature for at least 10 years
Mean daily maximum
temperature
for June 2011 (C)
Most recent June
this high or higher
Years since
higher
Average for
June
Horsham Polkemmet Rd 15.7 16.6 in 1967 39 14.0



Summary statistics for June 2011
Maximum temperatures
for June
(C)
Minimum temperatures
for June
(C)
Rainfall
for June
(millimetres)
Mean for
June
2011
Diff
from
average
Highest for
June
2011
Mean for
June
2011
Diff
from
average
Lowest for
June
2011
Total for
June
2011
Average
for
June
Rank of
June
2011
Fraction of
June
average
Southwest Slopes (South) (district 72)
Albury Airport AWS 14.5 +0.5 19.8 1st 2.8 -1.0 -1.4 11th 33.4 60.5 low 55%
Hume Reservoir 14.5 +1.5 20.4 1st 4.5 -0.3 -0.6 11th 43.6 67.4 average 65%
North Mallee (district 76)
Mildura Airport 17.1 +1.1 21.0 2nd 4.6 -0.6 -0.5 15th 10.2 22.6 low 45%
Ouyen (Post Office) 16.2 +0.5 20.2 2nd 5.2 +0.1 0.8 9th 14.9 29.3 average 51%
Walpeup Research 16.3 +1.2 20.7 2nd 5.4 -0.2 0.0 9th 18.4 29.6 average 62%
South Mallee (district 77)
Hopetoun Airport 16.7   21.0 2nd 3.9   -0.6 6th 13.6
Swan Hill Aerodrome 16.6 +1.3 21.2 1st 3.8 -0.5 -0.1 16th 8.4 23.2 v low 36%
North Wimmera (district 78)
Nhill Aerodrome 15.9   20.8 2nd 4.4   -0.2 1st 18.4
Warracknabeal Museum 16.1 +1.5 19.6 2nd 4.7 +0.2 0.0 1st 14.8 37.3 low 40%
South Wimmera (district 79)
Edenhope Airport 14.6   20.2 2nd 5.3   -1.0 15th 47.4
Grampians (Mount William) 5.9   13.3 15th 1.8   -2.2 8th 110.0
Horsham Aerodrome 15.4 +1.0 19.7 2nd 3.0 -0.6 -2.7 15th 21.6 36.3 low 60%
Horsham Polkemmet Rd 15.7 +1.7 20.0 2nd 3.8 -0.6 -3.5 15th 22.4 49.2 low 46%
Kanagulk 14.2   18.6 2nd 4.6   -1.2 1st 41.8
Longerenong 15.5 +1.7 19.5 2nd 3.4 -0.7 -1.7 1st 18.8 44.1 low 43%
Pyrenees (Ben Nevis) 8.5   13.9 1st 3.5   -0.8 8th 45.8
Stawell Aerodrome 13.8 +0.5 17.6 2nd 5.2 +0.6 -0.8 1st 19.2 53.7 v low 36%
Lower North (district 80)
Charlton 15.9   19.8 1st 4.4   -0.3 16th 17.2
Echuca Aerodrome 15.9 +1.7 20.5 1st 2.9 -1.8 -1.0 16th 17.0 42.4 low 40%
Kerang 16.4 +1.8 21.0 1st 4.4 -0.2 1.1 16th 15.8 35.5 low 45%
Kyabram DPI 15.6 +1.7 20.3 1st 3.1 -0.7 -1.5 16th 19.8 39.7 low 50%
Upper North (district 81)
Bendigo Airport 14.5 +1.3 19.3 1st 3.0 -0.6 -1.8 11th 22.6 50.1 low 45%
Shepparton Airport 14.9 +0.7 19.2 1st 2.7 -1.2 -1.7 15th 22.2 35.7 low 62%
Tatura Inst Sustainable Ag 15.1 +1.1 19.5 1st 3.2 -0.5 -1.6 16th 25.8 43.8 average 59%
Yarrawonga 15.5 +0.9 20.5 1st 3.3 -0.9 -1.8 11th 24.8 40.6 low 61%
Lower Northeast (district 82)
Benalla Airport 15.0   20.3 1st 2.7   -0.3 7th 34.4
Corryong Airport 12.2   16.8 1st 0.9   -3.8 12th 47.0
Dartmouth Reservoir 12.6 +0.1 18.0 1st 3.9 +0.9 -0.6 7th 68.2 103.3 low 66%
Hunters Hill 8.8 +0.5 14.8 1st 2.9 -0.1 -2.1 8th 95.6 132.6 average 72%
Rutherglen Research 14.9 +1.6 20.0 1st 1.0 -1.6 -4.0 11th 27.4 57.2 low 48%
Strathbogie 11.9 +0.7 18.0 1st 1.5 -0.6 -3.1 16th 68.2 115.0 low 59%
Wangaratta Aero 14.7 +0.7 20.0 1st 1.8 -1.3 -3.6 11th 32.0 69.4 low 46%
Upper Northeast (district 83)
Dinner Plain (Mount Hotham Airport) 7.1 -0.4 14.1 1st -1.2 -0.5 -4.9 6th 49.0 61.7 low 79%
Edi Upper 13.6 +0.5 20.2 1st 3.9 -0.6 0.4 7th 62.8 119.1 low 53%
Falls Creek 1.9 -0.9 10.0 2nd -2.1 -0.5 -6.6 8th 64.0 141.9 low 45%
Mount Buller 1.9 -1.4 8.3 1st -2.0 -0.8 -6.6 8th 134.0 146.2 average 92%
Mount Hotham 0.7 -0.6 7.7 1st -2.9 -0.5 -7.3 8th 92.6 130.6 average 71%
Omeo 11.6   16.9 1st 0.1   -4.5 29th 30.8
East Gippsland (district 84)
Combienbar AWS 11.5 -0.4 16.9 2nd 5.7 -0.1 1.2 9th 164.0 83.8 high 196%
Gabo Island Lighthouse 15.5 +0.7 18.6 2nd 9.3 0.0 6.3 7th 83.0 101.5 average 82%
Gelantipy 9.8 -0.4 13.7 3rd 3.2 0.0 -1.6 7th 96.8 56.4 high 172%
Lakes Entrance (Eastern Beach Road) 15.6   20.8 3rd 5.7   2.0 30th 90.6
Mallacoota 15.4 0.0 19.6 20th 6.9 -0.4 2.1 7th 118.2 87.0 high 136%
Mount Nowa Nowa 13.1 -0.4 17.9 2nd 6.6 -0.5 3.3 8th 104.0 74.9 high 139%
Orbost 15.3 -0.2 20.4 1st 6.4 -0.2 1.3 7th 107.0 77.4 high 138%
Orbost (Comparison) 15.6 +0.4 20.4 1st 5.2 0.0 -0.1 7th 106.2 85.0 high 125%
Point Hicks (Lighthouse) 15.0 +0.2 19.5 2nd 9.4 +0.3 5.1 9th 173.9 105.2 high 165%
West Gippsland (district 85)
Bairnsdale Airport 15.3 +0.3 20.1 3rd 4.2 -0.6 -1.2 29th 63.2 58.6 high 108%
East Sale Airport 15.0 +0.7 18.5 25th 3.6 -0.6 -1.1 7th 23.6 45.7 low 52%
Morwell (Latrobe Valley Airport) 14.9 +0.8 20.4 2nd 4.2 -0.2 -0.3 26th 48.0 59.4 average 81%
Mount Baw Baw 2.8 -0.7 10.3 2nd -1.0 -0.5 -5.4 8th 142.6 101.3 high 141%
Mount Moornapa 12.4 -0.1 17.2 2nd 5.9 -0.3 1.9 8th 43.8 81.9 average 53%
Noojee (Slivar) 13.5 +0.9 18.9 2nd 3.9 0.0 -0.6 16th 94.8 102.3 average 93%
Pound Creek 14.6   18.9 2nd 5.5   -1.0 15th 101.6
Willow Grove (Blue Rock Reservoir) 14.1 +0.4 18.5 5th 4.9 -0.6 2.0 29th 50.3 58.7 average 86%
Wilsons Promontory Lighthouse 13.6 +0.6 16.9 3rd 10.0 +0.7 5.8 8th 114.2 119.5 average 96%
Yarram Airport 14.8   18.3 3rd 3.8   -1.1 16th 36.2
East Central (district 86)
Bundoora (Latrobe University) 14.5 +0.6 18.2 2nd 5.9 -0.2 0.7 16th 38.3 55.2 low 69%
Cerberus 14.4 +0.3 19.1 2nd 6.3 -0.5 0.3 16th 53.8 70.2 average 77%
Coldstream 14.6 +0.6 20.9 1st 3.2 -0.9 -2.1 16th 74.6 65.5 average 114%
Coldstream Comparison 14.5   20.6 1st 3.1   -2.2 16th 74.4
Cranbourne Botanic Gardens 14.3 +0.3 19.0 2nd 5.9 -0.8 1.0 1st 64.9 76.4 average 85%
Essendon Airport 14.7 +1.1 18.6 2nd 6.1 +0.2 0.4 29th 23.0 38.8 low 59%
Ferny Creek 10.8   16.2 1st 5.9   0.6 8th 88.6
Ferny Creek (Dunns Hill) 10.2 +0.6 16.5 1st 5.6 -0.1 0.4 8th 73.2 90.4 average 81%
Frankston AWS 14.2 +0.6 17.8 2nd 8.9 +0.2 4.4 29th
Melbourne Airport 14.6 +1.0 18.8 2nd 6.2 0.0 1.0 1st 19.8 37.3 low 53%
Melbourne Regional Office 15.8 +1.8 19.5 2nd 7.8 +0.9 3.4 1st 32.2 49.0 low 66%
Moorabbin Airport 14.9 +0.7 19.4 2nd 6.3 -0.4 0.7 29th 38.0 55.4 low 69%
Phillip Island Penguin Reserve 14.2 -0.2 18.7 2nd     4.7 5th 71.3 78.7 average 91%
Rhyll 14.2 +0.4 18.2 2nd 8.4 -0.5 5.9 8th 71.4 58.3 average 122%
Scoresby Research Institute 14.7 +1.2 19.2 1st 5.5 -0.8 0.8 1st 45.4 68.7 low 66%
Viewbank (ARPANSA) 14.8 +0.4 18.9 2nd 5.7 -0.7 0.9 16th 46.2 50.5 average 91%
Wallan (Kilmore Gap) 10.5 +0.7 15.8 1st 4.7 -0.2 1.0 8th 30.6 64.4 low 48%
Wonthaggi 14.7 +0.5 19.5 2nd 6.6 0.0 1.7 13th 107.6 95.9 average 112%
West Central (district 87)
Avalon Airport 15.1 +0.3 20.5 2nd 5.2 -0.6 -1.3 1st 37.8 35.3 average 107%
Breakwater (Geelong Racecourse) 14.9   20.0 2nd 6.7   1.5 16th 32.8
Laverton RAAF 14.9 +0.7 19.5 2nd 5.5 -0.3 -1.0 1st 24.2 37.8 low 64%
Sheoaks 13.3 +0.5 17.8 2nd 5.5 -0.1 -0.9 1st 39.6 34.1 average 116%
North Central (district 88)
Castlemaine Prison 13.2 +0.6 18.4 1st 4.2 +0.8 -1.2 6th 31.8 55.7 low 57%
Eildon Fire Tower 10.7 +0.6 16.3 1st 4.7 -0.1 0.1 8th 50.0 68.8 low 73%
Lake Eildon 13.1 +0.5 17.8 2nd 3.6 -0.5 -0.5 11th 95.4 93.5 average 102%
Mangalore Airport 14.4 +1.0 18.6 1st 3.6 -0.3 -3.0 8th 22.8 53.7 low 42%
Maryborough 14.5 +1.7 18.4 1st 3.8 -0.4 -0.2 6th 23.4 55.4 low 42%
Redesdale 13.7 +1.1 18.9 1st 3.4 -0.5 -1.0 5th 28.4 59.2 low 48%
Western Plains (district 89)
Ararat Prison 13.6 +1.3 17.3 2nd 4.6 +0.8 -2.6 1st 25.3 55.2 low 46%
Ballarat Aerodrome 11.6 +0.8 16.2 1st 3.9 -0.1 -2.9 1st 41.0 62.8 low 65%
Westmere 13.2   16.8 2nd 5.0   -0.9 1st 38.2
West Coast (district 90)
Aireys Inlet 13.8 0.0 18.5 2nd 7.9 -0.2 4.8 6th 39.0 53.9 low 72%
Cape Nelson Lighthouse 14.5 +0.2 19.1 2nd 9.0 0.0 4.2 16th 87.4 86.6 average 101%
Cape Otway Lighthouse 14.0 +0.4 18.2 2nd 9.2 +0.7 5.3 13th 84.8 97.0 average 87%
Casterton 13.8   18.6 2nd 4.8   -0.4 1st 88.4
Colac (Mount Gellibrand) 12.7 +0.4 17.3 2nd 5.7 -0.4 2.2 8th 67.8 48.6 high 140%
Dartmoor 14.4   18.7 2nd 5.2   -0.9 1st 99.0
Hamilton Airport 13.3 +0.4 17.4 2nd 4.6 -0.4 -0.5 6th 57.0 65.1 average 88%
Mortlake Racecourse 14.2 +0.8 18.9 2nd 4.6 -0.4 -1.5 1st 59.6 48.4 average 123%
Port Fairy AWS 15.1 +0.5 19.6 2nd 7.2 -0.3 2.2 1st 88.0 75.5 average 117%
Portland (Cashmore Airport) 14.2 +0.5 18.4 2nd 7.0 +0.1 1.4 1st 104.2 106.5 average 98%
Portland NTC AWS 14.4   18.1 2nd 8.8   2.9 1st
Warrnambool Airport NDB 14.2 0.0 18.9 2nd 5.8 0.0 0.3 13th 94.2 75.8 high 124%
Weeaproinah 10.0 +0.4 14.4 2nd 5.4 -0.1 1.8 8th 265.4 211.7 high 125%

Notes

A Monthly Climate Summary is prepared to list the main features of the weather in Victoria 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.

This statement has been prepared based on information available at 10 am on Friday 1 July 2011. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

Averages 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.

Further information

Media
(03) 9669 4057
Enquiries