Tuesday, 1 July 2014 - Monthly Climate Summary for Perth - Product code IDCKGC11L0

Perth in June 2014: Below average rainfall with cold nights

June 2014 was a relatively dry month for most sites in the Perth metropolitan area with rainfall totals between 50% and 80% of the average. Rainfall ranged from about 80 mm on the offshore islands to 90mm to 120 mm on the Swan Coastal Plain to near 160 mm in the hills. Mild weather for the first nine days of June gave way to mostly cool days with cold to very cold nights for the remainder of the month. Mean maximum temperatures were near average with daily maxima mostly in the 19 to 20 °C range, whilst mean minimum temperatures ranged from near average on the offshore islands, near the coast and in the hills, to 1 °C to 2 °C below average for coastal plain sites.

• A strong cold front followed by a westerly flow and a secondary cold front brought rainfall across Perth from the 17th to 22nd, with moderate to heavy falls occurring on the 17th and 18th. Daily rainfall of 44.8 mm at Garden Island on the 18th is its highest daily rainfall in June in 13 years of record, whilst a daily total 71.8 mm at Bickley on the 18th was the highest daily fall in the metropolitan area for the month, and the highest daily rainfall in June at Bickley for 26 years, since 83.4 mm was recorded on 1 June 1988. The 24 hours to 9am on the 18th was the wettest day of the month for most sites.
• The warmest day was the 5th across the Perth region and a daily maximum of 25.5 °C at Swanbourne and Gosnells City was the highest temperature recorded during the month. It was also the the highest temperature in June at Swanbourne for 14 years, since 12 June 2000 when a maximum 26.2 °C was recorded, whilst a maximum of 24.6 °C at Perth Metro on the 5th was the highest June temperature at the site for almost four years, since 13 June 2010 when a maximum of 24.6 °C was also recorded.
• Pearce RAAF recorded its coldest June for 13 years, in terms of mean minimum temperature, since June 2001 when a mean minimum of 6.6 °C was recorded.
• Perth Metro experienced nine consecutive days with a maximum at or above 20 °C from the 1st to 9th, which is the longest mild spell in June at the site for eight years, since nine consecutive such days were recorded between 11 and 19 June 2006.
• Perth Airport recorded eleven very cold nights with temperatures at or below 5 °C, the greatest number of very cold nights for 58 years, since June 1956 when eleven cold nights was also recorded, and the equal second highest number of very cold nights in June since records commenced in 1944. The record high of 15 nights at or below 5 °C occurred in 1955.
• A minimum of 1.9 °C on the14th at Perth Metro is the lowest temperature at the site in June for two years, since 20 June 2012 when a minimum of 1.8 °C was recorded.

Extremes Records Summaries Important notes the top

Extremes Records Summaries Important notes the top

Extremes Records Summaries Important notes the top

Extremes Records Summaries Important notes the top

Extremes Records Summaries Important notes the top

Extremes Records Summaries Important notes the top

Most values are the precipitation in the 24 hours to 9 am on the day indicated. Days marked with »» are part of a longer accumulation, which is marked like this on the final day. Values over 100 mm have been rounded to the nearest whole millimetre. Days marked with - have a rainfall report of zero; days left blank have no rainfall report (which often indicates no rain fell).
This table is very wide; you may have to scroll sideways to see all the days, and you may need to set the paper to 'landscape' to print.

Extremes Records Summaries Important notes the top