Australia in July 2014

In Brief

Maximum temperatures during July were warmer than average across the Top End, much of the eastern States and northern South Australia as well as the west and southwest of Western Australia. Area-average maximum temperatures were equal-second-highest on record for July for Tasmania. Minimum temperatures were warmer than average for Tasmania and along most of the southern coastline of the mainland, but cooler than average for large areas of the remainder of the mainland. The national maximum temperature anomaly of +0.89 °C and minimum temperature anomaly of −0.30 °C combined to give a mean temperature anomaly of +0.29 °C.

July rainfall was below average for the mainland eastern States and an area of Western Australia stretching from the Pilbara coast into the southern interior. Rainfall was above average for eastern and southern Tasmania, the north of Western Australia and the south of the Northern Territory. For Australia as a whole, rainfall was 32% below average for July.


Temperatures

July was generally a mild month for Australia. Maximum temperatures during July were above average for the Top End, most of Queensland away from the southwest and far north, New South Wales except along and just east of the Great Dividing Range, eastern Victoria, Tasmania, northern South Australia and Western Australia west of a line between Exmouth and the Nullarbor Plain. Across Tasmania, daytime temperatures averaged for the month were in the highest 10% of records, with the state-wide average the fifth-highest for July while for New South Wales July was the seventh-warmest for maxima. Victoria was the only region to record a maximum temperature anomaly of less than +0.76 °C. The national area-averaged maximum temperature anomaly was +0.89 °C.

Minimum temperatures were below average for western and northeastern New South Wales, much of Queensland away from the western interior and south of the Gulf, a large region of central Australia, the northeast of the Northern Territory and the Pilbara district of Western Australia. Averaged nationally, minimum temperatures were below average at −0.30 °C.

Minimum temperatures were above average along most of the southern mainland coastline and across Tasmania. Coupled with above-average maximum temperatures in the same regions, the resultant mean temperatures were above to very much above average for Tasmania and much of coastal southern and southeast Australia. The above-average national mean temperature (+0.29 °C) also continued the recent warm run, with January–July (+0.71 °C) coming in at sixth-warmest on record for such periods.


Areal average temperatures
Maximum Temperature Minimum Temperature Mean Temperature
Rank
(of 105)
Anomaly
(°C)
Comment Rank
(of 105)
Anomaly
(°C)
Comment Rank
(of 105)
Anomaly
(°C)
Comment
Australia = 89 +0.89 = 35 −0.30 64 +0.29
Queensland = 88 +0.94 35 −0.68 63 +0.13
New South Wales 99 +1.20 7th highest 35 −0.23 78 +0.49
Victoria = 81 +0.61 = 75 +0.50 85 +0.56
Tasmania 101 +1.16 5th highest = 88 +1.14 100 +1.15 6th highest
South Australia = 85 +0.89 = 62 +0.35 79 +0.62
Western Australia = 77 +0.76 35 −0.34 63 +0.21
Northern Territory 80 +0.91 40 −0.46 59 +0.22

Rank ranges from 1 (lowest) to 105 (highest). A rank marked with ’=‘ indicates the value is tied for that rank. Anomaly is the departure from the long-term (1961–1990) average.


Temperature maps
MeanAnomalyDeciles
Mean
daily
maximum
temperatures
Map of mean daily maximum temperature Map of mean daily maximum temperature anomalies Map of mean daily maximum temperature deciles
Mean
daily
minimum
temperatures
Map of mean daily minimum temperature Map of mean daily minimum temperature anomalies Map of mean daily minimum temperature deciles
Mean
daily
temperatures
Map of mean daily temperature Map of mean daily temperature anomalies Map of mean daily temperature deciles

Rainfall

Nationally-averaged rainfall during July was 32% below the long-term mean. Much of the eastern mainland, extending from central and eastern Queensland, through the majority of New South Wales, and into northern and eastern Victoria and eastern South Australia recorded below-average monthly rainfall. Rainfall was also below average for an area in the west of Western Australia, extending from the western Pilbara and northern Gascoyne through to the southern interior. Several locations within this area had their driest July on record, although rainfall is not typically high in those areas at this time of year. Queensland recorded the largest departure from mean rainfall at 86% below average, while the Northern Territory was the only region to record a substantial positive departure with an area-averaged total 38% higher than average.

Rainfall was above average for the northern half of Western Australia and the southern half of the Northern Territory as well as scattered areas around the Gulf of Carpentaria, along the southern mainland coastline and for eastern and southern Tasmania. The passage of multiple cold fronts during the month was responsible for rainfall in Tasmania while generally moderate falls around mid-month associated with tropical moisture streaming across the mainland was sufficient to result in the above-average falls in the mainland northwest. A series of strong cold fronts in the last days of the month brought severe weather for the mainland southeast and northern Tasmania.


Area-average rainfall
Rank
(of 115)
Average
(mm)
Departure
from mean
Comment
Australia 26 15.1 −32%
Queensland 17 2.6 −86%
New South Wales 12 14.1 −64%
Victoria = 35 53.2 −24%
Tasmania 81 170.4 +7%
South Australia 40 12.7 −32%
Western Australia 65 20.4 +1%
Northern Territory 95 9.5 +38%
Murray-Darling Basin 16 17.3 −56%

Rank ranges from 1 (lowest) to 115 (highest). A rank marked with ’=‘ indicates the value is tied for that rank. Departure from mean is relative to the long-term (1961–1990) average.


Rainfall maps
TotalsPercentagesDeciles
Total
rainfall
Map of total rainfall Map of percentage of normal rain Map of rainfall deciles


Australian weather extremes during July 2014
Hottest day   33.3 °C at Jabiru Airport and Mango Farm (NT) on 10 July
Coldest day   −3.0 °C at Thredbo AWS (NSW) and Mount Hotham (Vic.) on 9 July
Coldest night −11.3 °C at Glen Innes Airport AWS (NSW) on 12 July
Warmest night   25.1 °C at Troughton Island (WA) on 13 July
Wettest day 215.0 mm at Cape Leveque (WA) on 13 July


Notes

The Monthly Climate Summary is prepared to list the main features of the weather in Australia 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.

Climate Summaries are usually published on the first working day of each month.

This statement has been prepared based on information available at 12 pm EST on Friday 1 August 2014. Some checks have been made on the data, but it is possible that results will change as new information becomes available, especially for rainfall where much more data becomes available as returns are received from volunteers.

Long-term averages in this statement and associated tables are for the period 1961 to 1990 unless otherwise specified.

The system used for calculating areal averages of rainfall was changed in May 2009; the main effect was that current and historical values for Tasmania were increased. Since December 2012, ACORN-SAT has been used for calculating areal averages of temperature; the major change from earlier datasets is that the ACORN-SAT dataset commences in 1910, and hence rankings are calculated using a larger set of years.


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