The weather ferret’s mid winter forecast

Monday, July 18, 2016 2:26 pm
Reading Time: 3 minutes

By Mike Atkinson | Drive Producer

Winter is in full swing. Cold days, even colder nights and a fair drop of rain to boot — and yes, we’re only 50% through it.

Our beloved weather ferret, J.R, gives us the lowdown on this weeks weather and what’s in store for winter: Part 2.

Mid-winter blues

  • In the 24 hours to 9am yesterday Bickley in the Perth hills recorded 55.6 mm. It was wettest location in the state.
  • Perth Metro recorded 32.8 mm which beings our July rainfall total to 113.2 mm on 8 rain days.
  • Currently Perth Metro is experiencing its wettest July to date for 13 years since the 116.2 mm on 12 days in 2003.
  • Perth’s wettest July on record was in 1958 with 425.1 mm.
  • The average rainfall for July is 167.8 mm.

Overnight temperatures in the Perth Metro Area

perth metro overnight

 Winter in Perth

  • On average the second half of winter is drier and the first half. The average rainfall for the second half of winter is 215.8 mm.
  • So far this winter Perth Metro has recorded 222.6 mm on 24 rain days. The average for three months winter (June to August) is 474.2 mm on 47.4 rain days.
  • The winter rainfall extremes for Perth range from 230.4 mm in 2006 to 957.1 mm in 1945. Last winter, Perth recorded a drier than average winter with 315.8 mm.
  • The time Perth achieved the winter average was 16 years ago in 2000 with 497.2 mm.

Comparison: Rainfall totals in Perth from 1st January to 18th July 2000-2016

rainfall

 On this day in history

  • On this day in history 40 years ago on 18th July 1976, Perth recorded its equal warmest day in July on record with 26.3°C.
  • The previous occasion was recorded the day before on the 17th.
  • During that July in 1976, Perth experienced one if its warmest winter spells on record.
  • Between the 14th and 23rd July Perth recorded 10 consecutive days when the max temp was 20.0°C or higher.
  • The mean max temp for the 10 day period was 23.0°C.
  • That’s similar weather conditions we would expect in October.

Perth dams

  • This week (2016) 26.0% (on the up up). Last week 25.6%
  • Last year (2015) on this date 27.8%

Perth forecast

Perth forecast for the next 7 days. Source: BOM

FerretThe Weather Ferret’s fact of the week: The hottest location in the world yesterday was 50.6°C recorded at Omidieh (Iran).

hottest

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