Tuesday, 1 August 2023 - Monthly Climate Summary for Greater Perth - Product code IDCKGC11L0
Greater Perth in July 2023
Rainfall
- July rainfall totals ranged from 100–130 mm across the Swan coastal plain, to 160–200 mm in the Perth Hills.
- The wettest spot was at Huntly with a total of 248.1 mm (7% above its July average of 231.8 mm); the lowest July total was 75 mm at Rottnest Island, two-thirds of its July average (111.5 mm)
- Perth Metro recorded a monthly total of 120.6 mm, 18% below its July average(147.1 mm), and the driest July since 2020 when 83.4 mm was recorded.
- Perth recorded 22 rain days (daily rainfall >=0.2 mm), which was 5 days more than its July average (17.4 rain days).
Temperature
- Mean maximum temperatures were near average or slightly above average at most coastal plain sites, whilst sites along the coast and on the Perth Hills saw slighly below average mean maxima.
- Mean minimum temperatures were 0.5 to 1.0 °C above average at most sites.
- Perth Metro recorded 5 very cold nights with minimum temperatures at or below 5 °C, including 2 frosty nights (1.3 on the 1st and 1.9 on the 16th).
Perth Metro
- The mean daily maximum temperature for Perth Metro was 18.6 °C, which is 0.1 °C above the long-term average of 18.5 °C.
- The warmest day was 21.6 °C on the 24th, and the coolest day was on the 19th when the temperature reached 15.7 °C.
- The mean daily minimum temperature for Perth Metro was 9.0 °C, which is 1.0 °C above the long-term average of 8.0 °C.
- The coldest morning was 1.3 °C on the 1st, and the warmest morning was on the 13th when the minimum temperature was 15.2 °C.
Extremes Maps Records Summaries Daily observations Important notes the top
| Extremes in July 2023 | |
|---|---|
| Hottest day |
21.6 °C at Perth Airport on the 12th 21.6 °C at Perth Metro on the 24th |
| Warmest days on average | 18.7 °C at Perth Airport |
| Coolest days on average | 14.9 °C at Bickley |
| Coldest day | 11.5 °C at Karnet on the 19th |
| Coldest night | 0.2 °C at Jandakot Aero on the 16th |
| Coolest nights on average | 8.0 °C at Bickley |
| Warmest nights on average | 12.9 °C at Rottnest Island |
| Warmest night | 16.2 °C at Rottnest Island on the 12th |
| Warmest on average overall | 15.5 °C at Rottnest Island |
| Coolest on average overall | 11.5 °C at Bickley |
| Wettest overall | 248.1 mm at Huntly |
| Wettest day | 50.6 mm at Bickley on the 19th |
| Strongest wind gust | 94 km/h at Rottnest Island on the 19th |
Extremes Maps Records Summaries Daily observations Important notes the top
Extremes Maps Records Summaries Daily observations Important notes the top
| Summary statistics for July 2023 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for July 2023 |
Diff from average |
Highest for July 2023 |
Mean for July 2023 |
Diff from average |
Lowest for July 2023 |
Total for July 2023 |
Average for July |
Rank of July 2023 |
Fraction of July average |
|||
| Bickley | 14.9 | -0.2 | 18.1 | 24th | 8.0 | +0.7 | 2.3 | 1st | 214.0 | 219.0 | average | 98% |
| Garden Island HSF | 17.7 | -0.2 | 20.1 | 24th | 11.8 | +0.5 | 4.7 | 16th | 132.6 | 125.7 | average | 105% |
| Jandakot Aero | 18.3 | +0.3 | 21.0 | 24th | 8.4 | +1.3 | 0.2 | 16th | 126.6 | 173.4 | low | 73% |
| Karnet | 15.3 | -0.2 | 19.7 | 23rd | 1.5 | 16th | 189.9 | 219.8 | average | 86% | ||
| Mandurah | 17.2 | -0.4 | 18.7 | 24th | 11.4 | +0.6 | 7.3 | 15th | 98.2 | 115.5 | low | 85% |
| Millendon (Swan Valley) | 18.5 | 21.0 | 12th | 8.1 | 0.7 | 1st | 100.4 | |||||
| Pearce RAAF | 18.6 | +0.7 | 21.3 | 12th | 8.8 | +0.4 | 2.8 | 16th | 111.6 | 134.0 | average | 83% |
| Perth Airport | 18.7 | +0.7 | 21.6 | 12th | 9.1 | +1.0 | 2.8 | 16th | 119.2 | 154.8 | low | 77% |
| Perth Metro | 18.6 | +0.1 | 21.6 | 24th | 9.0 | +1.0 | 1.3 | 1st | 120.6 | 146.3 | average | 82% |
| Rottnest Island | 18.1 | +0.3 | 21.2 | 12th | 12.9 | +0.5 | 10.3 | 15th | 75.0 | 111.5 | low | 67% |
| Swanbourne | 18.2 | -0.2 | 21.5 | 24th | 10.9 | +1.0 | 4.8 | 1st | 113.4 | 151.4 | low | 75% |
Extremes Maps Records Summaries Daily observations Important notes the top
| Daily maximum temperatures for July 2023 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
| Bickley | 13.7 | 16.1 | 13.4 | 13.2 | 11.6 | 13.7 | 15.0 | 15.7 | 16.4 | 14.8 | 16.5 | 17.4 | 15.5 | 14.4 | 13.2 | 15.2 | 17.6 | 16.0 | 12.2 | 13.4 | 15.6 | 15.9 | 17.7 | 18.1 | 13.1 | 12.4 | 12.6 | 14.6 | 16.0 | 15.0 | 17.1 |
| Garden Island HSF | 17.0 | 18.3 | 19.2 | 16.3 | 15.5 | 17.4 | 18.4 | 17.2 | 17.9 | 19.1 | 19.1 | 19.6 | 18.3 | 15.4 | 15.9 | 18.0 | 19.2 | 15.2 | 16.7 | 18.4 | 18.4 | 18.5 | 20.1 | 17.1 | 15.6 | 16.9 | 18.0 | 18.3 | 17.4 | 18.6 | |
| Jandakot Aero | 17.0 | 19.2 | 18.0 | 16.8 | 15.7 | 17.5 | 19.0 | 18.2 | 18.5 | 18.4 | 19.9 | 20.5 | 18.8 | 16.5 | 16.2 | 19.0 | 20.3 | 19.0 | 15.4 | 17.1 | 19.0 | 19.2 | 20.8 | 21.0 | 16.7 | 16.1 | 16.8 | 19.1 | 18.8 | 18.0 | 20.5 |
| Karnet | 16.7 | 13.6 | 13.4 | 12.6 | 13.8 | 15.5 | 15.4 | 15.4 | 15.5 | 16.5 | 16.0 | 14.0 | 17.7 | 16.1 | 11.5 | 13.9 | 16.3 | 17.1 | 19.7 | 19.4 | 16.1 | 11.8 | 13.8 | 15.4 | 14.3 | 17.3 | |||||
| Mandurah | 16.2 | 16.8 | 18.1 | 16.4 | 15.5 | 16.7 | 18.6 | 16.5 | 18.0 | 18.1 | 17.7 | 18.7 | 18.3 | 16.0 | 15.5 | 17.0 | 17.3 | 18.4 | 15.0 | 16.5 | 18.7 | 18.4 | 17.5 | 18.7 | 16.9 | 15.5 | 16.3 | 17.3 | 17.3 | 17.3 | 17.4 |
| Millendon (Swan Valley) | 17.4 | 18.4 | 17.7 | 17.3 | 16.7 | 18.0 | 19.3 | 18.0 | 20.3 | 18.5 | 20.1 | 21.0 | 19.1 | 16.8 | 16.3 | 18.1 | 20.8 | 19.9 | 15.4 | 16.0 | 19.4 | 19.3 | 20.7 | 20.7 | 16.7 | 16.3 | 16.4 | 19.2 | 19.6 | 18.5 | 20.3 |
| Pearce RAAF | 17.6 | 18.7 | 17.8 | 17.2 | 17.0 | 17.7 | 19.1 | 18.3 | 20.2 | 18.7 | 20.5 | 21.3 | 18.8 | 16.7 | 16.0 | 18.2 | 20.4 | 20.7 | 16.1 | 16.4 | 18.9 | 18.7 | 21.0 | 21.1 | 17.6 | 15.4 | 17.7 | 19.2 | 19.4 | 19.3 | 20.2 |
| Perth Airport | 17.5 | 19.3 | 17.8 | 17.2 | 17.0 | 17.5 | 19.5 | 18.7 | 20.7 | 18.8 | 20.8 | 21.6 | 19.3 | 17.3 | 16.5 | 19.2 | 21.0 | 19.8 | 15.7 | 16.3 | 19.4 | 19.6 | 21.3 | 21.2 | 16.6 | 16.0 | 16.1 | 19.1 | 19.4 | 18.5 | 20.3 |
| Perth Metro | 17.7 | 19.4 | 18.5 | 17.3 | 16.3 | 17.9 | 19.3 | 18.6 | 20.3 | 18.7 | 19.9 | 20.9 | 19.5 | 16.8 | 16.4 | 19.0 | 20.7 | 19.4 | 15.7 | 17.0 | 18.9 | 19.1 | 20.8 | 21.6 | 16.9 | 15.9 | 16.6 | 19.3 | 19.6 | 18.3 | 20.4 |
| Rottnest Island | 17.1 | 18.4 | 19.3 | 16.5 | 16.3 | 17.4 | 18.9 | 17.5 | 19.3 | 19.3 | 19.7 | 21.2 | 18.9 | 15.0 | 15.8 | 18.4 | 19.0 | 19.0 | 15.3 | 17.0 | 19.6 | 17.8 | 19.1 | 20.6 | 17.3 | 16.1 | 16.9 | 18.2 | 19.1 | 18.0 | 19.0 |
| Swanbourne | 17.8 | 18.8 | 16.9 | 16.8 | 16.9 | 17.9 | 19.0 | 17.5 | 19.2 | 18.8 | 19.8 | 19.6 | 18.7 | 16.2 | 16.8 | 18.6 | 19.5 | 18.8 | 15.2 | 16.7 | 19.1 | 18.7 | 18.3 | 21.5 | 17.6 | 15.8 | 16.5 | 18.6 | 18.7 | 18.6 | 19.8 |
|
Values are the maximum temperature, usually in the 24 hours from 9 am on the day indicated, and typically occurred in the afternoon of that day. | |||||||||||||||||||||||||||||||
| Temperatures coloured according to their difference from the long-term average for the period |
-10.0 | -9.0 | -8.0 | -7.0 | -6.0 | -5.0 | -4.0 | -3.0 | -2.0 | -1.0 | 0.0 | +1.0 | +2.0 | +3.0 | +4.0 | +5.0 | +6.0 | +7.0 | +8.0 | +9.0 | +10.0 | °C | Grey outline marks highest and lowest for the period |
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| Daily minimum temperatures for July 2023 | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
| Bickley | 2.3 | 4.9 | 8.3 | 8.0 | 7.5 | 7.4 | 8.8 | 9.0 | 10.2 | 11.1 | 9.6 | 11.3 | 12.6 | 8.8 | 3.0 | 4.0 | 8.0 | 8.0 | 7.9 | 6.0 | 8.3 | 7.1 | 5.4 | 7.2 | 9.9 | 8.7 | 7.9 | 9.0 | 10.1 | 10.3 | 8.8 |
| Garden Island HSF | 8.7 | 9.9 | 12.8 | 11.5 | 11.9 | 10.9 | 14.0 | 12.5 | 12.6 | 12.3 | 14.8 | 16.1 | 15.0 | 11.7 | 8.4 | 4.7 | 13.1 | 13.0 | 12.0 | 10.0 | 10.8 | 10.4 | 9.1 | 10.2 | 12.8 | 12.5 | 12.4 | 12.7 | 14.0 | 13.8 | 11.8 |
| Jandakot Aero | 0.7 | 1.7 | 7.2 | 11.1 | 10.6 | 8.2 | 11.1 | 11.4 | 10.4 | 12.9 | 9.3 | 12.3 | 14.7 | 11.1 | 2.1 | 0.2 | 7.0 | 6.5 | 10.1 | 7.0 | 10.2 | 4.6 | 1.9 | 6.6 | 6.7 | 10.7 | 10.7 | 9.6 | 13.9 | 9.3 | 10.6 |
| Karnet | 7.5 | 6.1 | 8.7 | 7.0 | 8.1 | 6.8 | 10.5 | 12.5 | 8.5 | 2.0 | 1.5 | 8.8 | 8.1 | 4.3 | 8.1 | 4.7 | 3.1 | 6.5 | 7.9 | 8.2 | 9.0 | 11.8 | 9.0 | ||||||||
| Mandurah | 7.8 | 10.1 | 11.8 | 11.3 | 11.2 | 10.7 | 11.5 | 10.6 | 12.9 | 11.8 | 14.6 | 15.3 | 15.3 | 11.7 | 7.3 | 7.6 | 11.7 | 13.6 | 11.8 | 9.3 | 11.2 | 10.0 | 8.5 | 10.3 | 13.8 | 11.2 | 11.3 | 12.6 | 13.8 | 11.6 | 12.6 |
| Millendon (Swan Valley) | 0.7 | 5.5 | 4.8 | 10.9 | 7.7 | 8.2 | 10.5 | 10.1 | 11.2 | 10.8 | 7.3 | 11.2 | 13.6 | 9.0 | 5.4 | 0.9 | 4.3 | 9.2 | 10.6 | 5.8 | 9.8 | 6.0 | 5.4 | 8.1 | 7.2 | 10.5 | 9.2 | 10.4 | 12.2 | 9.5 | 5.8 |
| Pearce RAAF | 3.6 | 7.0 | 7.4 | 10.5 | 9.5 | 8.9 | 10.7 | 10.1 | 10.1 | 10.9 | 7.3 | 10.9 | 13.9 | 10.0 | 5.1 | 2.8 | 4.0 | 12.4 | 9.9 | 5.9 | 8.8 | 9.0 | 6.4 | 8.8 | 9.4 | 10.3 | 9.4 | 10.7 | 12.3 | 11.7 | 5.4 |
| Perth Airport | 3.9 | 5.6 | 8.1 | 11.0 | 10.5 | 8.2 | 10.5 | 9.9 | 11.8 | 12.2 | 9.9 | 12.4 | 14.6 | 9.3 | 4.9 | 2.8 | 6.3 | 9.6 | 10.6 | 6.8 | 9.8 | 6.3 | 7.6 | 7.0 | 9.8 | 10.6 | 10.1 | 10.2 | 12.1 | 11.2 | 8.3 |
| Perth Metro | 1.3 | 3.1 | 7.7 | 11.0 | 10.8 | 9.8 | 11.5 | 11.2 | 12.3 | 12.8 | 10.1 | 12.5 | 15.2 | 11.4 | 2.8 | 1.9 | 6.8 | 7.6 | 10.9 | 7.6 | 9.9 | 6.5 | 4.4 | 6.6 | 9.2 | 10.2 | 10.7 | 11.0 | 13.2 | 12.3 | 7.9 |
| Rottnest Island | 10.5 | 11.9 | 13.6 | 11.3 | 11.2 | 12.6 | 13.6 | 14.2 | 13.7 | 14.9 | 14.1 | 16.2 | 15.0 | 11.6 | 10.3 | 11.2 | 14.4 | 14.5 | 11.2 | 11.0 | 12.8 | 13.2 | 11.8 | 13.9 | 15.6 | 12.1 | 11.0 | 13.0 | 14.1 | 13.2 | 13.2 |
| Swanbourne | 4.8 | 7.8 | 11.7 | 11.1 | 11.6 | 10.5 | 14.3 | 11.6 | 12.7 | 13.5 | 13.5 | 14.5 | 14.9 | 11.2 | 5.3 | 5.2 | 10.5 | 10.8 | 11.9 | 7.9 | 10.0 | 9.2 | 7.7 | 9.6 | 12.4 | 11.9 | 11.6 | 12.4 | 14.1 | 13.4 | 9.8 |
|
Values are the minimum temperature, usually in the 24 hours to 9 am on the day indicated, and typically occurred that morning. | |||||||||||||||||||||||||||||||
| Temperatures coloured according to their difference from the long-term average for the period |
-10.0 | -9.0 | -8.0 | -7.0 | -6.0 | -5.0 | -4.0 | -3.0 | -2.0 | -1.0 | 0.0 | +1.0 | +2.0 | +3.0 | +4.0 | +5.0 | +6.0 | +7.0 | +8.0 | +9.0 | +10.0 | °C | Grey outline marks highest and lowest for the period |
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| Daily rainfall for July 2023 | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | ||
| Anketell | - | - | 6.4 | 27.9 | 13.3 | 4.2 | 2.5 | 2.0 | 1.6 | 4.3 | 0.2 | 1.4 | 7.0 | 4.5 | 0.9 | - | - | - | 22.5 | 3.4 | 3.8 | 0.2 | - | - | - | 25.3 | 12.2 | 1.1 | 3.1 | 1.6 | 3.9 | |
| Araluen | - | - | - | 26.0 | 11.0 | 2.5 | - | → | → | 7.5 | - | - | 7.0 | 5.0 | - | - | - | - | 34.0 | - | 6.0 | - | - | - | - | 13.0 | 18.0 | - | → | → | 19.0 | |
| Bickley | - | - | - | 32.8 | 11.6 | 6.0 | 2.4 | 7.6 | 3.0 | 1.0 | - | 0.6 | 9.0 | 2.8 | 0.2 | - | - | - | 50.6 | 10.0 | 0.6 | 0.2 | 0.2 | - | 37.0 | 18.2 | 0.6 | 16.2 | 3.2 | 0.2 | ||
| Bungendore | 0.2 | - | 1.8 | 29.8 | 20.0 | 2.4 | 2.6 | 2.0 | 4.6 | 5.0 | 0.6 | 0.2 | 5.0 | 4.4 | 0.4 | - | - | - | 27.4 | 2.8 | 4.2 | 0.2 | 0.2 | - | - | 25.0 | 11.6 | 1.2 | 11.6 | 2.8 | 2.4 | |
| Chidlow | - | - | - | 21.9 | 4.6 | 3.2 | 1.3 | - | → | 2.8 | - | - | 3.2 | 2.1 | - | - | - | - | 25.4 | - | - | → | → | 2.8 | - | 15.4 | 15.6 | - | 7.8 | → | 1.0 | |
| Garden Island HSF | - | - | 12.4 | 17.2 | 9.6 | 7.4 | 2.0 | 4.2 | 4.2 | 2.6 | - | 2.0 | 5.2 | 3.8 | 0.2 | - | - | - | 3.8 | 7.4 | 0.8 | - | 0.2 | - | 33.4 | 5.6 | 0.8 | 3.2 | 2.0 | 4.6 | ||
| Gidgegannup | - | - | - | 21.0 | 13.0 | 2.6 | 3.2 | 1.0 | 0.6 | 1.2 | - | - | 2.8 | 1.0 | 1.4 | 0.4 | - | - | 4.4 | 24.2 | 2.6 | 2.8 | - | - | - | 0.8 | 2.6 | 25.2 | 6.2 | 1.2 | 6.0 | |
| Hopelands | - | - | 17.4 | 7.4 | 7.4 | → | 7.6 | 1.2 | - | 4.6 | → | 4.2 | 7.6 | 6.6 | - | - | - | - | 17.6 | 2.0 | ||||||||||||
| Huntly | 0.2 | - | 2.6 | 45.8 | 24.8 | 4.2 | 7.6 | 4.6 | 2.4 | 4.2 | 1.2 | 16.2 | 16.6 | 6.0 | - | - | - | - | 31.6 | 7.8 | 4.0 | - | - | - | 0.4 | 24.0 | 23.4 | 0.9 | 17.8 | 0.8 | 1.0 | |
| Jandakot Aero | 0.2 | - | 2.4 | 12.8 | 8.6 | 5.0 | 2.0 | 4.6 | 1.8 | 0.8 | - | 0.2 | 4.4 | 2.6 | - | 0.2 | - | - | 18.8 | 2.2 | 11.8 | 0.2 | - | - | - | 20.0 | 15.0 | 0.2 | 5.6 | 4.2 | 3.0 | |
| Jarrahdale | 0.4 | 0.2 | 6.0 | 34.6 | 18.6 | 2.4 | 4.6 | 9.4 | 1.0 | 6.0 | 0.6 | 0.8 | 13.0 | 3.4 | 0.6 | 0.2 | - | - | 35.6 | 1.4 | 7.6 | 0.4 | 0.2 | 0.2 | - | 29.8 | 19.0 | 1.6 | 14.6 | 4.0 | 2.4 | |
| Karnet | 10.5 | 21.5 | 19.5 | 4.4 | 10.1 | 2.5 | 1.9 | 6.5 | - | 3.0 | → | 4.2 | - | - | - | - | 32.4 | 1.5 | 7.7 | - | - | - | 32.7 | 16.0 | 0.2 | 14.2 | 1.1 | |||||
| Karragullen North | - | - | - | 31.8 | 12.4 | 4.2 | 1.8 | 4.2 | 2.4 | 8.4 | 1.4 | 9.6 | 2.0 | - | - | - | - | - | 32.6 | 3.2 | 10.4 | - | - | - | - | 25.0 | 18.0 | 0.6 | 10.4 | |||
| Maida Vale | - | - | 5.4 | 15.2 | 5.0 | 2.2 | 0.4 | 4.4 | 1.0 | - | - | - | 5.2 | 1.2 | - | - | - | - | 26.4 | 2.0 | 5.4 | - | - | - | - | 25.4 | 12.0 | - | 13.6 | 4.8 | ||
| Mandurah | - | - | 6.6 | 4.8 | 8.4 | 2.8 | 0.6 | 1.0 | 0.2 | 0.8 | - | 5.0 | 3.6 | 6.4 | - | - | - | - | 10.2 | 3.0 | 1.8 | - | - | - | - | 22.6 | 9.6 | 1.4 | 4.6 | - | 4.8 | |
| Millendon (Swan Valley) | - | - | - | 20.6 | 4.6 | 1.6 | 0.6 | 3.2 | 0.2 | 0.6 | - | 0.2 | 3.0 | 2.2 | 0.2 | - | - | - | 15.6 | 2.2 | 3.6 | 1.2 | - | - | - | 21.2 | 14.4 | 1.4 | 2.8 | 0.8 | 0.2 | |
| Mount Solus | 0.2 | - | 6.2 | 36.8 | 17.4 | 4.0 | 4.4 | 4.0 | 2.0 | 4.6 | - | 4.8 | 7.8 | 3.0 | - | 0.2 | - | - | 34.8 | 5.2 | 7.2 | 0.2 | - | 0.2 | - | 24.8 | 14.6 | 1.0 | 12.0 | 1.2 | 0.2 | |
| Muchea | - | - | - | 20.0 | 5.4 | 0.2 | 2.6 | - | - | 0.2 | - | - | 5.8 | 3.8 | 0.2 | 0.2 | - | - | 21.8 | 1.8 | 2.2 | 2.0 | - | 0.2 | - | 19.2 | 11.6 | 0.2 | 6.4 | 1.8 | 0.2 | |
| Mundaring | - | - | 0.4 | 35.4 | 8.0 | 3.8 | 1.2 | 5.4 | 2.0 | 2.4 | 0.2 | - | 6.8 | 2.8 | 0.4 | - | - | - | 33.8 | - | 8.2 | - | - | - | - | 24.2 | 18.6 | 1.4 | 20.8 | 3.4 | 0.2 | |
| Pearce RAAF | - | - | - | 20.2 | 3.2 | 2.0 | 0.8 | 2.4 | - | 0.2 | - | - | 3.8 | 1.0 | 0.2 | - | - | - | 19.6 | 1.6 | 3.0 | 3.4 | 0.2 | - | - | 22.0 | 18.4 | 0.2 | 6.2 | 3.0 | 0.2 | |
| Perth Airport | - | - | - | 18.4 | 4.2 | 4.6 | 0.4 | 2.4 | 0.4 | 0.6 | - | - | 3.0 | 1.4 | 0.2 | - | - | - | 25.4 | 1.0 | 5.8 | 2.0 | - | - | - | 23.2 | 13.8 | 0.4 | 10.4 | 1.4 | 0.2 | |
| Perth Metro | - | - | 0.2 | 16.0 | 6.4 | 3.6 | 0.2 | 2.8 | 0.8 | 0.6 | - | 0.2 | 3.8 | 2.6 | 1.0 | - | - | - | 21.8 | 1.0 | 6.8 | 2.0 | - | - | - | 24.6 | 14.2 | 0.4 | 10.4 | 0.8 | 0.4 | |
| Pinjarra South | - | - | 5.4 | 12.2 | 13.6 | 3.2 | 6.2 | 1.2 | - | 0.2 | 0.2 | 13.0 | 6.8 | 4.2 | - | - | - | - | 16.0 | 5.6 | 1.2 | - | 0.2 | - | - | 27.0 | 15.0 | 0.2 | 7.8 | 0.6 | 1.0 | |
| Roleystone | - | - | 1.8 | 26.8 | 11.0 | 4.4 | 1.2 | 3.2 | 2.8 | 2.4 | 0.2 | 0.6 | 8.2 | 2.8 | - | - | - | - | 35.8 | 4.4 | 7.4 | - | - | - | - | 20.8 | 14.2 | - | 9.8 | 3.8 | 3.6 | |
| Rottnest Island | - | - | 11.4 | 5.4 | 1.6 | - | 0.2 | 3.6 | 1.0 | - | - | 0.4 | 1.8 | 3.2 | 1.2 | - | - | - | 8.2 | 1.4 | 3.8 | 0.2 | - | - | - | 21.2 | 4.8 | 0.4 | 1.0 | 0.8 | 3.4 | |
| Serpentine | - | - | 6.2 | 26.6 | 17.4 | 2.4 | 2.0 | 0.8 | 0.8 | 3.6 | - | 0.8 | 7.4 | 3.6 | 0.2 | - | - | - | 19.4 | 1.4 | 6.6 | 0.2 | - | - | - | 30.0 | 16.8 | 0.8 | 12.4 | 1.6 | 3.2 | |
| Subiaco Treatment Plant | - | - | 3.2 | 20.0 | 4.2 | 3.6 | 0.2 | 4.0 | 2.6 | - | - | 0.6 | 1.6 | 4.6 | 1.2 | - | ||||||||||||||||
| Swanbourne | - | - | 3.2 | 20.2 | 4.4 | 3.6 | 0.4 | 4.0 | 2.4 | - | - | 0.8 | 1.6 | 4.8 | 1.2 | - | - | - | 18.8 | 1.8 | 5.6 | 0.4 | - | - | - | 22.0 | 8.4 | 1.2 | 8.2 | 0.2 | 0.2 | |
| Tamala Park (Mindarie) | - | - | - | 12.2 | 1.4 | - | 1.0 | 1.4 | 0.8 | 1.0 | - | - | 6.8 | 2.6 | - | - | - | - | 13.2 | 0.8 | 4.9 | 5.4 | - | - | - | 26.8 | 17.0 | 1.2 | 1.4 | 1.4 | 0.4 | |
| Wanneroo | → | → | → | 13.8 | 5.2 | 0.6 | 0.8 | - | - | - | - | - | 5.4 | 3.8 | - | - | - | - | 15.2 | 0.2 | 16.4 | → | → | 5.0 | - | - | ||||||
| Werribee | - | - | - | 18.8 | 1.4 | 1.0 | 1.0 | 0.6 | - | 0.4 | - | 0.2 | 2.0 | 1.2 | - | 1.4 | - | - | 20.0 | 2.0 | 2.8 | 1.8 | 0.2 | - | - | 16.2 | 9.8 | 0.2 | 10.2 | 2.0 | 0.4 | |
|
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 shown 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). | ||||||||||||||||||||||||||||||||
| Rainfalls coloured according to the amount |
0 | 1.0 | 5.0 | 10.0 | 15.0 | 25.0 | 50.0 | 100 | 150 | 200 | 300 | 400 | 600 | millimetres | ||||||||||||||||||
Extremes Maps Records Summaries Daily observations Important notes the top
Notes
The Monthly climate summary, usually published in the first week of the following month, lists the main features of the weather in Greater Perth using the most timely and accurate information available on the date of publication; it will generally not be updated.
This summary includes data from observing sites in or near the Greater Perth “Greater Capital City Statistical Area” (GCCSA). The Australian Bureau of Statistics designed the GCCSAs to represent a socio-economic definition of each capital city. This means the greater capital city boundary includes people who regularly socialise, shop or work within the capital city, but live in the small towns and rural areas surrounding the capital city. It does not define the built up edge of the capital city.
This statement has been prepared based on information available at 2 pm on Tuesday 1 August 2023. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.
Averages for individual sites are long-term means based on observations from
all available years of record, which vary widely from site to site.
They are not shown for sites with less than 10 years of record, as they cannot then be calculated reliably.
The median
is sometimes more representative than the
mean
of long-term average rain.
The Rank indicates how rainfall this time compares with the climate record for the site,
based on the
decile ranking
(very low rainfall is in decile 1, low in decile 2 or 3,
average in decile 4 to 7, high in decile 8 or 9
and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a
percentage of the long-term mean.
Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.
Information about Australian Indigenous seasonal calendars is available at the Indigenous Weather Knowledge website.
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence
