Bust out the ugg boots and make sure you keep those brollies handy - Perth is shivering through its coldest February day ever and cool-ish conditions and rain are going to be hanging around.

Perth’s temperature maxed out at 17.4 degrees at 4.19pm, well below the lowest previous top for the month of 19.0 degrees on February 17, 2014.

The cold snap was accompanied by 13.4 millimetres of rain in the city, with up to another 40 millimetres to come on Friday and a chance of rain on Saturday, Sunday, Monday and Tuesday.

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The temperature on Friday is at least projected to get to 27 on Friday, although that is still more than four degrees below February’s mean maximum temperature.

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Perth’s cool Thursday:

6.30am: 14.6 degrees

8am: 14.5 degrees

10am: 15.5 degrees

12noon: 15.2 degrees

2pm: 15.8 degrees

4pm: 17.3 degrees

5pm: 16.1 degrees.

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Meanwhile, as rain tumbled down around the state, areas of the Pilbara were particularly hard hit by downpours.

There was spectacular rainfall in Karratha, which copped 210 millimetres of rain overnight on Wednesday.