Thursday, 1 June 2017 - Monthly Climate Summary for Perth - Product code IDCKGC11L0

Perth in May 2017: Warm and dry start

May comprised a warm and dry start, a wet spell in the second half of the month, and a mild and dry end. Rainfall was mostly below average in the Perth metropolitan area whilst both mean maximum and minimum temperatures were higher than normal for most sites.

Below average rainfall for most sites

• Monthly rainfall was mostly in the 40 to 70 mm range across the metropolitan area, 90 to 100 mm in the hills
• Perth Metro recorded 70.8 mm rain on 12 rain days in May, its driest May in five years, with 49.0 mm recorded in May 2012
• May saw a dry start and finish, with a wet spell in the second half of the month and 6 to 8 consecutive rain days
• Six consecutive rain days from the 19th to 24th at Perth Metro was its longest such wet spell for nine months, since 7 to 12 August 2016
• Wettest day was the 21st for most sites with the highest daily rainfall in the Perth area of 32.8 mm at Bickley
  

Mostly above average daytime and overnight temperatures

• Mean maximum temperatures were within 0.5 °C of average for most sites, though a few sites on the coastal plain were 1°C to 2 °C above average
• Perth Metro's mean maximum temperature was 22.7 °C, its warmest May for five years, since a mean maximum of 23.1 °C was recorded in May 2012
• A warm start to May peaked on the 7th, with daily maximum temperatures over 30 °C for most coastal plain sites
• A daily maximum of 31.8 °C at Perth Metro on the 7th was its warmest day in May for 14 years, since a daily maximum of 32.7 °C on 1 May 2003
• Mean minimum temperatures were within 0.5 °C of average for most sites, though a few coastal plain sites recorded means between 0.5 °C and 1.5 °C above average
• Perth Metro's mean minimum temperature was 11.0 °C, its mildest May for three years, since a mean minimum of 12.4 °C was recorded in May 2014.
• Mild nights with daily minima in the mid-to-high teens were observed early in the month (3rd to 9th)
• The coldest night for most sites was the 28th with overnight temperatures close to 5 °C on the coastal plain

Extremes Maps Records Summaries Daily observations Important notes the top

Extremes Maps Records Summaries Daily observations Important notes the top

Extremes Maps Records Summaries Daily observations Important notes the top

Extremes Maps Records Summaries Daily observations Important notes the top

Extremes Maps Records Summaries Daily observations Important notes the top