Victoria in July 2018: mild days, below average rainfall

July rainfall was lower than average across most of the northern and eastern Victoria. Daytime temperatures were warmer than average, while night time temperatures were mostly close to average.

A dry July across much of the State

  • Statewide rainfall was 33% below the long-term July mean of 70 mm, the driest July since 2002
  • Large areas in the north and east of Victoria, and to the north of Melbourne had rainfall totals in the driest 10 per cent on record for July
  • Several areas in Victoria's southwest had above average July rainfall
  • The highest daily total in the State, 48.2 mm, was recorded at Wilsons Promontory on the 26th; this was also the wettest place during the month, recording 199.2 mm
  • Some sites had their lowest total July rainfall for at least 20 years

A mild month

  • Days were warmer than average across the State, except in the far-southwest where daytime temperatures were close to average
  • Victoria's mean daytime temperature was 1.18 °C above the long-term July average, sixth-warmest on record
  • It was particularly warm across the State on the 4th and 5th, and many sites had their early season daytime temperature records
  • The highest daytime temperature in Victoria during July, 24.2 degC, was recorded at Mildura on the 5th
  • The 27th and 28th saw again warm daytime temperatures, and Portland and Warrnambool Airport had their record highest July temperature on these days
  • Although daytime temperatures were generally mild, there were some cold days in July, for example between the 10th and 12th, and the 19th and 21st; the lowest daytime temperature in Victoria during month, -4.1 °C, was recorded at Mt Hotham on the 20th, while Ballarat Aerodrome had its record lowest July maximum temperature on the 11th
  • Night time temperatures were generally close to average across the State, except in parts of the south where night time temperatures were warmer than average
  • Victoria's mean night time temperature was 0.23 °C above the long-term average
  • Bundoora and Combienbar had their record highest daily minimum temperature on the 5th

Strong winds

  • A succession of frontal systems moving across Victoria brought strong winds on a number of days in July
  • The strongest wind gusts for the month were recorded on the 8th and 20th, with gusts of 146 km/h reported at Wilsons Promontory Lighthouse on both days
  • Strong winds were recorded across Victoria on the 17th, when a fast moving cold front accompanied with thunderstorms swept across the State, downing trees, damaging properties, and causing power outages. The strongest wind gust recorded during this event was 141 km/h, at Wilsons Promontory lighthouse

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Extremes in July 2018
Hottest day 24.2 °C at Mildura Airport on the 5th
Warmest days on average 17.5 °C at Mildura Airport
Coolest days on average -0.1 °C at Mount Hotham
Coldest day -4.1 °C at Mount Hotham on the 20th
Coldest night -7.6 °C at Falls Creek on the 21st
Coolest nights on average -4.3 °C at Mount Hotham
Warmest nights on average 9.3 °C at Wilsons Promontory Lighthouse
Warmest night 13.3 °C at Bundoora (Latrobe University) on the 5th
Warmest on average overall 11.5 °C at Lakes Entrance (Eastern Beach Road)
Coolest on average overall -2.2 °C at Mount Hotham
Wettest overall 199.2 mm at Wilsons Promontory Lighthouse
Wettest day 48.2 mm at Wilsons Promontory Lighthouse on the 26th
Strongest wind gust 146 km/h at Wilsons Promontory Lighthouse on the 8th
146 km/h at Wilsons Promontory Lighthouse on the 20th

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


Lowest July total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Average for
July
Eltham 20.4 18.8 in 1943* 57.0
Milawa Brown Bros 27.4 10.4 in 1982* 71.4
Mooroopna 13.6 9.0 in 1982* 49.4
Mildura Airport 3.4 2.8 in 1992 24.9
Annuello 6.8 5.4 in 1997 28.1
Barnawartha 18.0 17.0 in 1997 58.6
Mangalore Airport 16.8 12.8 in 1997 57.2
Shepparton Airport 12.0 8.0 in 1997 41.5
Essendon Airport 14.6 14.2 in 1982* 43.2
Wangaratta Aero 23.6 12.4 in 1997* 64.7

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




Record highest July temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Portland (Cashmore Airport) 18.7 on the 27th = 18.7 on the 8th in 1994 37 13.1
Warrnambool Airport NDB 18.5 on the 28th 18.0 on the 5th in 2003 20 13.5



Record lowest July daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Ballarat Aerodrome 4.2 on the 11th 4.4 on the 30th in 1994 60 10.1



Highest July mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
July
East Sale 15.3 15.6 in 1975 13.8



Record highest July daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Bundoora (Latrobe University) 13.3 on the 5th 12.9 on the 19th in 2013 36 5.6
Combienbar AWS 12.5 on the 5th 11.9 on the 18th in 2016 25 4.9



Record highest July mean temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Bairnsdale Airport 10.4 = 10.4 in 2005 37 9.3

Highest July mean temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
July
Mildura Airport 11.1 12.3 in 1975 9.9



Summary statistics for July 2018
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
July
2018
Diff
from
average
Highest for
July
2018
Mean for
July
2018
Diff
from
average
Lowest for
July
2018
Total for
July
2018
Average
for
July
Rank of
July
2018
Fraction of
July
average
North Mallee (district 76)
Mildura Airport 17.5 +2.1 24.2 5th 4.7 +0.4 -1.8 13th 3.4 24.9 v low 14%
Ouyen (Post Office) 16.9 +1.7 23.3 5th 4.8 +0.5 -0.5 14th 11.7 30.2 low 39%
Walpeup Research 16.4 +1.7 22.9 5th 5.3 +0.5 -0.4 13th
South Mallee (district 77)
Hopetoun Airport 16.3 +1.5 22.6 5th 3.2 0.0 -3.1 2nd 18.2 26.4 low 69%
Swan Hill Aerodrome 16.3 +1.6 22.3 5th 3.5 -0.1 -2.6 14th
North Wimmera (district 78)
Kellalac (Warracknabeal Airport) 14.8   20.2 5th 3.7   -2.1 14th 25.2
Nhill Aerodrome 14.5 +0.6 20.3 27th 4.8 +0.3 -1.1 13th 43.0 36.8 average 117%
Warracknabeal Museum 15.0 +1.0 20.2 27th 2.9 -0.9 -2.8 14th 31.0 40.1 average 77%
South Wimmera (district 79)
Edenhope Airport 13.6 +0.3 19.7 27th 5.0 +0.2 -2.1 13th 88.2 67.3 high 131%
Grampians (Mount William) 5.1 +0.3 11.7 28th 0.7 -0.2 -1.4 12th 146.6 179.1 low 82%
Horsham Aerodrome 14.3 +0.7 18.9 27th 2.8 -0.4 -2.9 2nd 28.0 41.2 v low 68%
Kanagulk 13.3 +0.5 17.9 27th 3.8 -0.5 -3.5 14th 79.8 65.2 high 122%
Longerenong 14.6 +1.4 19.4 27th 2.8 -0.6 -3.3 1st 29.8 42.9 low 69%
Pyrenees (Ben Nevis) 7.7 +0.6 13.7 28th 2.2 -0.4 -0.4 12th 28.0 84.1 v low 33%
Stawell Aerodrome 12.6 +0.2 16.9 28th 3.8 -0.3 -0.9 13th 45.8 55.9 average 82%
Lower North (district 80)
Charlton 14.6 +0.8 20.6 5th 3.2 -0.5 -2.8 2nd 34.6 34.9 average 99%
Echuca Aerodrome 15.1 +1.6 21.2 5th 3.3 -0.5 -2.8 2nd 20.8 40.9 low 51%
Kerang 15.6 +1.5 21.3 5th 3.7 -0.2 -1.8 14th 14.0 34.9 low 40%
Kyabram 14.6 +1.5 19.9 5th 3.2 +0.1 -2.8 14th 15.8 42.8 low 37%
Upper North (district 81)
Bendigo Airport 13.5 +0.9 18.6 5th 2.0 -0.7 -3.1 2nd 35.0 55.1 low 64%
Shepparton Airport 14.3 +1.0 19.5 5th 3.1 -0.2 -3.0 14th 12.0 41.5 v low 29%
Tatura Inst Sustainable Ag 14.1 +1.1 19.3 5th 3.2 +0.2 -2.4 2nd 15.2 47.5 v low 32%
Yarrawonga 14.3 +0.8 20.1 5th 2.7 -0.8 -2.9 14th 23.4 46.4 low 50%
Lower Northeast (district 82)
Benalla Airport 13.6 +0.5 19.1 5th 2.5 -0.6 -4.0 14th 30.9 68.5 v low 45%
Corryong Airport 11.3 -0.3 17.2 5th 0.3 -0.9 -4.5 23rd 39.0 86.8 v low 45%
Dartmouth Reservoir 11.8 +0.1 17.8 5th 1.5 -0.8 -3.4 23rd 59.2 112.8 low 52%
Hunters Hill 7.1 -0.2 13.3 5th 1.2 -0.8 -1.7 16th 78.2 154.0 low 51%
Rutherglen Research 13.4 +1.0 18.9 5th 1.6 -0.5 -3.4 13th 22.8 61.3 low 37%
Strathbogie 10.6 +0.5 15.5 5th 1.7 0.0 -4.6 14th 56.4 122.3 low 46%
Wangaratta Aero 13.5 +0.6 18.6 5th 1.6 -1.0 -4.6 14th 23.6 64.7 v low 36%
Upper Northeast (district 83)
Falls Creek 0.6 -0.5 5.2 5th -3.6 -0.7 -7.6 21st 78.0 90.7 average 86%
Mount Buller 0.8 -0.6 5.1 5th -3.2 -0.6 -5.7 13th 133.8 169.5 low 79%
Mount Hotham -0.1 +0.1 6.2 14th -4.3 -0.6 -7.5 15th 73.2 133.5 low 55%
Omeo 10.8 +0.2 15.5 5th 0.7 -0.2 -4.0 2nd 28.6 54.6 low 52%
East Gippsland (district 84)
Combienbar AWS 12.7 +1.4 19.6 4th 5.1 +0.2 1.7 11th
Gabo Island Lighthouse 15.2 +1.1 18.6 24th     5.1 23rd 34.2 84.6 low 40%
Gelantipy 10.6 +1.0 16.5 5th 2.4 +0.2 -2.6 15th 28.4 57.5 low 49%
Lakes Entrance (Eastern Beach Road) 16.2 +0.9 22.6 5th 6.7 +1.0 2.5 3rd 36.4 48.6 average 75%
Mallacoota 15.9 +1.0 21.3 29th 5.3 -0.9 1.5 11th 37.4 79.9 low 47%
Mount Nowa Nowa 13.9 +0.9 20.1 5th 6.0 0.0 3.1 12th 23.6 61.3 low 38%
Orbost 15.6 +0.5 20.3 17th 5.6 0.0 0.8 23rd 21.4 59.0 low 36%
Point Hicks (Lighthouse) 15.2 +1.0 21.1 29th 7.6 -0.6 3.6 31st 62.8 97.8 average 64%
West Gippsland (district 85)
Bairnsdale Airport 16.0 +1.4 20.8 5th 4.8 +0.9 -2.4 11th 26.2 47.4 average 55%
Corner Inlet (Yanakie) 14.0   18.2 4th 6.3   0.7 3rd 89.6
East Sale 15.3 +1.5 21.0 17th 3.1 -0.2 -3.2 11th 35.2 40.8 average 86%
East Sale Airport 15.6   21.0 17th 3.2   -3.1 3rd 33.4
Morwell (Latrobe Valley Airport) 14.5 +0.9 19.8 5th 3.5 -0.2 -3.2 23rd 74.0 65.1 average 114%
Mount Baw Baw 2.1 0.0 7.4 3rd -1.8 -0.2 -3.7 20th 118.4 157.6 low 75%
Mount Moornapa 13.5 +1.4 19.9 5th 5.5 +0.3 2.3 2nd 46.2 59.5 average 78%
Nilma North (Warragul) 13.8   19.5 5th 4.9   -2.1 2nd 97.8
Pound Creek 14.3 +0.4 17.9 17th 6.1 +0.2 0.0 12th 95.2 85.4 average 111%
Wilsons Promontory Lighthouse 13.4 +1.2 19.0 4th 9.3 +0.9 6.4 21st 199.2 123.3 v high 162%
Yarram Airport 15.3 +1.0 20.3 17th 4.4 -0.1 -3.2 3rd 34.4 52.5 low 66%
East Central (district 86)
Coldstream 13.9 +0.6 18.8 5th 4.5 +0.6 -3.5 2nd 46.0 61.7 low 75%
Cranbourne Botanic Gardens 14.1 +0.7 18.7 5th 6.0 -0.2 1.0 2nd 101.0 71.5 high 141%
Essendon Airport 14.3 +1.2 18.5 27th 6.6 +1.2 -0.1 2nd 14.6 43.2 v low 34%
Ferny Creek 10.0   15.0 5th 5.1   2.7 1st 80.6
Frankston AWS 13.1 +0.3 17.2 5th 8.3 +0.3 3.1 2nd
Melbourne (Olympic Park) 14.8   19.5 27th 7.8   2.4 2nd 19.4
Melbourne Airport 14.1 +1.0 18.8 27th 5.9 +0.5 1.9 2nd 14.6 35.5 low 41%
Moorabbin Airport 14.8 +1.1 19.5 5th 7.4 +1.2 0.0 2nd 33.8 61.2 low 55%
Rhyll 13.8 +0.5 17.4 27th 8.5 +0.4 5.5 2nd 67.4 70.0 average 96%
Scoresby Research Institute 14.4 +1.4 19.4 28th 6.9 +1.1 0.3 2nd 40.4 72.9 v low 55%
Viewbank 14.5 +0.6 19.3 5th 6.5 +0.6 -0.3 2nd 19.6 48.0 v low 41%
Wonthaggi 14.4 +0.8 18.2 28th 7.0 +0.8 2.4 2nd 93.6 98.8 average 95%
West Central (district 87)
Avalon Airport 15.0 +0.9 19.5 27th 5.7 +0.6 -1.2 2nd 26.0 38.1 low 68%
Breakwater (Geelong Racecourse) 14.8   19.1 27th 6.6   0.2 2nd 41.4
Laverton RAAF 14.9 +1.2 19.9 28th 6.3 +1.2 0.5 2nd 17.6 38.5 v low 46%
Sheoaks 12.7 +0.5 17.7 28th 5.7 +0.6 0.3 12th 47.0 40.8 average 115%
North Central (district 88)
Castlemaine Prison 12.1 +0.4 16.1 28th 3.4 +0.5 -2.0 2nd 43.1 60.6 low 71%
Eildon Fire Tower 9.4 +0.2 15.0 28th 3.7 -0.2 0.6 2nd 44.8 69.0 low 65%
Lake Eildon 12.8 +0.8 17.9 5th 3.9 +0.2 0.0 10th 60.8 93.8 low 65%
Mangalore Airport 13.3 +0.8 18.1 5th 2.7 -0.5 -2.3 2nd 16.8 57.2 v low 29%
Maryborough 12.5 +0.3 16.9 5th 3.2 -0.2 -1.8 14th 41.4 54.0 average 77%
Redesdale 13.0 +1.0 17.3 28th 1.8 -1.2 -2.8 1st 42.8 65.3 low 66%
Wallan (Kilmore Gap) 9.7 +0.6 14.1 19th 3.5 -0.5 1.1 15th 33.4 61.9 low 54%
Western Plains (district 89)
Ararat Prison 12.8 +1.0 17.5 28th 2.9 -0.5 -3.9 14th 64.8 63.2 average 103%
Ballarat Aerodrome 10.4 +0.3 14.7 28th 2.8 -0.4 -2.7 2nd 68.8 66.6 average 103%
Westmere 12.4 +0.2 17.2 27th 4.3 -0.1 -1.2 2nd 48.8 55.9 average 87%
West Coast (district 90)
Aireys Inlet 13.6 +0.2 18.0 27th 7.1 -0.2 4.6 12th 75.0 69.8 average 107%
Cape Nelson Lighthouse 13.9 +0.1 18.7 27th 7.9 -0.5 2.1 13th 105.6 99.5 average 106%
Cape Otway Lighthouse 13.2 +0.2 16.6 27th 8.1 +0.6 3.7 12th 140.0 106.3 high 132%
Casterton 13.2 +0.2 19.1 27th 4.6 -0.3 -1.9 13th 91.8 84.5 average 109%
Colac (Mount Gellibrand) 11.8 +0.2 16.4 28th 5.1 -0.2 2.7 1st 66.6 58.9 average 113%
Dartmoor 13.5   18.5 27th 5.1   -2.3 13th 112.6 109.4 average 103%
Hamilton Airport 12.2 +0.1 17.6 28th 4.3 -0.1 -1.5 13th 88.6 71.2 high 124%
Mortlake Racecourse 13.4 +0.4 18.8 28th 4.8 +0.2 -0.9 12th 65.4 63.4 average 103%
Port Fairy AWS 14.3 +0.1 19.1 27th 6.4 -0.6 0.7 12th 73.8 89.8 low 82%
Portland (Cashmore Airport) 13.3 +0.2 18.7 27th 6.4 +0.1 0.8 14th 152.0 113.2 high 134%
Warrnambool Airport NDB 13.5 0.0 18.5 28th 5.5 0.0 -0.7 12th 86.6 85.0 average 102%

Notes

The Monthly climate summary, generally published on the first working day of each month, lists 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. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

This statement has been prepared based on information available at 10 am on Wednesday 1 August 2018. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.

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.

Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.

Further information

Media
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