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Climate statistics for Australian locations
Monthly climate statistics
All years of record
Summary statistics PORTLAND
A summary of the major climate statistics recorded at this site is provided below. There is also an extended table with more statistics available. More detailed data for individual sites is available.
Site information
Additional information
Nearest alternative sites
| Statistics | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | Years | Plot | Map | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature | |||||||||||||||||
| Mean maximum temperature (°C) | 21.8 | 21.9 | 20.7 | 18.4 | 16.1 | 14.1 | 13.6 | 14.4 | 15.8 | 17.3 | 18.8 | 20.5 | 17.8 | 80 | 1863 1956 |
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| Mean minimum temperature (°C) | 12.7 | 13.1 | 12.0 | 10.3 | 8.7 | 7.5 | 6.5 | 6.9 | 7.8 | 8.9 | 10.3 | 11.6 | 9.7 | 80 | 1863 1956 |
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| Rainfall | |||||||||||||||||
| Mean rainfall (mm) | 35.6 | 32.5 | 42.1 | 63.8 | 87.9 | 99.0 | 108.4 | 106.5 | 84.6 | 68.4 | 51.9 | 45.1 | 823.3 | 156 | 1857 2024 |
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| Decile 5 (median) rainfall (mm) | 25.8 | 24.5 | 36.7 | 61.3 | 81.8 | 93.8 | 105.8 | 101.9 | 81.4 | 66.0 | 45.9 | 39.0 | 159 | n/a n/a |
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| Mean number of days of rain ≥ 1 mm | 4.7 | 4.2 | 6.1 | 8.7 | 11.5 | 12.7 | 13.8 | 14.1 | 11.6 | 9.9 | 7.5 | 6.2 | 111.0 | 139 | 1872 2024 |
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| Other daily elements | |||||||||||||||||
| Mean daily sunshine (hours) | |
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| Mean number of clear days | |
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| Mean number of cloudy days | |
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| 9 am conditions | |||||||||||||||||
| Mean 9am temperature (°C) | 17.5 | 17.4 | 16.2 | 13.9 | 11.7 | 9.8 | 9.2 | 10.2 | 12.0 | 13.6 | 15.0 | 16.6 | 13.6 | 42 | 1908 1956 |
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| Mean 9am relative humidity (%) | 72 | 74 | 75 | 78 | 81 | 82 | 82 | 79 | 77 | 75 | 75 | 73 | 77 | 86 | 1858 1956 |
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| Mean 9am wind speed (km/h) | |
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| 9am wind speed vs direction plot | |
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| 3 pm conditions | |||||||||||||||||
| Mean 3pm temperature (°C) | 19.7 | 20.0 | 19.0 | 16.7 | 14.9 | 12.8 | 12.6 | 13.3 | 14.5 | 15.5 | 16.8 | 18.5 | 16.2 | 35 | 1908 1956 |
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| Mean 3pm relative humidity (%) | 61 | 64 | 64 | 68 | 70 | 74 | 71 | 67 | 65 | 65 | 65 | 62 | 66 | 35 | 1908 1956 |
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| Mean 3pm wind speed (km/h) | |
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| 3pm wind speed vs direction plot | |
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red = highest value
blue = lowest value
Product IDCJCM0026 Prepared at Thu 16 Jan 2025 03:47:49 AM AEDT
Monthly statistics are only included if there are more than 10 years of data. The number of years (provided in the 2nd last column of the table) may differ between elements if the observing program at the site changed. More detailed data for individual sites can be obtained by contacting the Bureau.
Related Links
- This page URL: http://www.bom.gov.au/climate/averages/tables/cw_090070.shtml
- About climate averages: http://www.bom.gov.au/climate/cdo/about/about-stats.shtml
- Bureau of Meteorology website: http://www.bom.gov.au
Related information
Maps
- Long term climatology maps for selected elements
- Rainfall maps and temperature maps based on recent observations
Recent observations for this site
Climate outlooks
- Monthly and seasonal climate outlooks
Additional climate information
Page created: Thu 16 Jan 2025 03:47:49 AM AEDT