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Climate statistics for Australian locations

Monthly climate statistics

All years of record

Temperature | Rainfall | Other daily elements | 9am conditions | 3pm conditions

PORTLAND (CASHMORE AIRPORT)

An extended list of climate statistics recorded is provided below. There is also a summary table for printing with the commonly requested statistics and a map showing the location of this site. Monthly statistics are only included if there are more than 10 years of suitable data.

Note: Many statistics are updated quarterly and recent weather events may not be represented in the statistics below. For more current information on recent extreme values, please refer to the corresponding Daily rainfall, Maximum temperature and Minimum temperature data tables for this site, and our Australian Climate and Weather Extremes Monitoring System. Missing observations associated with the observer being unavailable (where observations are undertaken manually), a failure in the observing equipment, or when an event has produced suspect data may result in an extreme event not being recorded.

Site details

view  View:  
view   Period:  
table size  Text size:      
Statistics Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Years Plot Map
Temperature  
Maximum temperature  
Mean maximum temperature (°C) 22.122.521.218.515.913.813.114.015.317.018.720.417.7381982
2020
graph statistic Climatology Map
Highest temperature (°C) 42.543.140.534.226.820.618.724.431.032.835.543.643.6381982
2020
graph statistic  
Date24 Jan
2019
16 Feb
1983
17 Mar
2008
09 Apr
2005
09 May
2013
10 Jun
1987
27 Jul
2018
20 Aug
1995
26 Sep
1987
24 Oct
2019
29 Nov
2012
20 Dec
2019
20 Dec
2019
    
Lowest maximum temperature (°C) 13.914.513.610.99.69.28.59.09.410.311.312.48.5381982
2020
graph statistic  
Date01 Jan
1996
02 Feb
1990
26 Mar
2015
27 Apr
2009
27 May
2000
24 Jun
2016
29 Jul
2008
03 Aug
2017
05 Sep
1995
28 Oct
2003
16 Nov
1983
13 Dec
2008
29 Jul
2008
    
Decile 1 maximum temperature (°C) 17.317.716.614.613.211.611.111.412.213.114.315.9 391982
2020
graph statistic Climatology Map
Decile 9 maximum temperature(°C) 30.831.329.224.318.915.815.217.219.923.426.727.9 391982
2020
graph statistic Climatology Map
Mean number of days ≥ 30 °C3.53.42.50.40.00.00.00.00.00.41.32.013.5381982
2020
graph statistic  
Mean number of days ≥ 35 °C1.51.30.50.00.00.00.00.00.00.00.10.64.0381982
2020
graph statistic  
Mean number of days ≥ 40 °C0.30.10.00.00.00.00.00.00.00.00.00.10.5381982
2020
graph statistic  
Minimum temperature  
Mean minimum temperature (°C)12.312.811.89.98.46.86.36.77.58.39.911.09.3381982
2020
graph statistic Climatology Map
Lowest temperature (°C)1.64.12.51.20.0-1.5-2.3-0.7-0.6-0.91.50.9-2.3381982
2020
graph statistic  
Date03 Jan
2009
16 Feb
1985
01 Mar
2001
20 Apr
2013
29 May
1990
13 Jun
1996
21 Jul
2005
05 Aug
1997
17 Sep
2019
10 Oct
2006
14 Nov
2012
07 Dec
2006
21 Jul
2005
    
Highest minimum temperature (°C)25.525.222.521.115.314.112.813.816.617.520.320.725.5381982
2020
graph statistic  
Date05 Jan
2007
18 Feb
2007
27 Mar
1990
01 Apr
2005
04 May
2005
29 Jun
2019
07 Jul
1988
29 Aug
2005
24 Sep
2001
15 Oct
1991
30 Nov
2017
12 Dec
1998
05 Jan
2007
    
Decile 1 minimum temperature (°C) 8.48.97.96.04.72.82.83.74.24.86.37.2 391982
2020
graph statistic Climatology Map
Decile 9 minimum temperature (°C) 15.816.115.313.311.810.09.49.510.511.713.414.4 391982
2020
graph statistic Climatology Map
Mean number of days ≤ 2 °C 0.00.00.00.10.61.71.60.90.50.10.10.05.6381982
2020
graph statistic  
Mean number of days ≤ 0 °C 0.00.00.00.00.00.20.30.10.10.10.00.00.8381982
2020
graph statistic  
Ground surface temperature  
Mean daily ground minimum temperature (°C)               
 
   
Lowest ground temperature (°C)               
 
   
Date                 
Mean number of days ground min. temp. ≤ -1 °C               
 
   
 
StatisticsJanFebMarAprMayJunJulAugSepOctNovDecAnnualYearsPlotMap
Rainfall  
Mean rainfall (mm) 35.829.146.458.384.1108.3112.4107.987.559.953.549.7839.5371982
2020
graph statistic Climatology Map
Highest rainfall (mm) 149.684.8175.2114.4197.0202.4219.0255.0161.2123.4113.4125.01157.2381982
2020
graph statistic Climatology Map
Date2011200519831995200720042013201320162013199220102013    
Lowest rainfall (mm) 1.41.64.611.023.649.655.626.237.27.016.213.8583.6381982
2020
graph statistic Climatology Map
Date2019199119941993199020172001198220142015199320062006    
Decile 1 rainfall (mm) 10.85.123.625.935.067.671.555.159.029.024.921.0693.3381982
2020
graph statistic Climatology Map
Decile 5 (median) rainfall (mm) 30.523.244.154.177.1106.0107.4104.781.252.848.342.5852.6381982
2020
graph statistic Climatology Map
Decile 9 rainfall (mm) 64.357.666.396.6133.0146.8155.0162.2126.3101.392.291.4995.4381982
2020
graph statistic Climatology Map
Highest daily rainfall (mm) 72.050.077.250.059.471.236.861.046.055.068.661.077.2381982
2020
graph statistic  
Date14 Jan
2011
25 Feb
2016
22 Mar
1983
06 Apr
1992
27 May
2000
14 Jun
2014
08 Jul
1993
14 Aug
2013
09 Sep
2016
23 Oct
2013
26 Nov
2002
13 Dec
2008
22 Mar
1983
    
Mean number of days of rain 10.48.813.417.220.422.123.623.320.317.914.513.1205.0381982
2020
graph statistic Climatology Map
Mean number of days of rain ≥ 1 mm 5.34.77.69.814.116.317.517.414.210.98.87.9134.5381982
2020
graph statistic Climatology Map
Mean number of days of rain ≥ 10 mm 0.80.81.31.32.43.33.63.22.71.41.31.423.5381982
2020
graph statistic Climatology Map
Mean number of days of rain ≥ 25 mm 0.20.20.20.20.30.40.30.20.20.20.20.32.9381982
2020
graph statistic Climatology Map
 
StatisticsJanFebMarAprMayJunJulAugSepOctNovDecAnnualYearsPlotMap
Other daily elements  
Mean daily wind run (km) 378364353332367348415445445416379406387162003
2020
graph statistic  
Maximum wind gust speed (km/h) 83859310491106102104981069491106172003
2020
graph statistic  
Date22 Jan
2009
14 Feb
2018
18 Mar
2018
15 Apr
2009
05 May
2015
24 Jun
2014
07 Jul
2018
25 Aug
2009
05 Sep
2012
02 Oct
2013
12 Nov
2016
12 Dec
2005
02 Oct
2013
    
Mean daily sunshine (hours)               
 
  Climatology Map
Mean daily solar exposure (MJ/m2) 24.320.616.010.87.46.06.89.713.718.321.724.014.9311990
2020
graph statistic  
Mean number of clear days 4.54.44.43.62.81.92.22.92.83.33.43.940.1281982
2010
graph statistic  
Mean number of cloudy days 11.69.713.013.716.115.314.613.113.811.913.013.5159.3281982
2010
graph statistic  
Mean daily evaporation (mm)               
 
  Climatology Map
 
StatisticsJanFebMarAprMayJunJulAugSepOctNovDecAnnualYearsPlotMap
9 am conditions  
Mean 9am temperature (°C) 16.516.615.413.811.59.48.79.711.212.914.015.212.9281982
2010
graph statistic  
Mean 9am wet-bulb temperature (°C) 13.814.313.311.910.28.37.68.49.410.611.612.711.0261982
2010
graph statistic  
Mean 9am dew-point temperature (°C) 11.612.211.610.19.17.26.36.77.48.29.610.49.2271982
2010
graph statistic  
Mean 9am relative humidity (%) 75777980868786827975767580271982
2010
graph statistic Climatology Map
Mean 9am cloud cover (oktas) 5.45.35.35.55.65.65.45.15.55.35.65.65.4281982
2010
graph statistic  
Mean 9am wind speed (km/h) 18.817.816.216.014.816.417.519.921.221.819.720.118.3281982
2010
graph statistic  
9am wind speed vs direction plot Link to 9am January windrose pdf document Link to 9am February windrose pdf document Link to 9am March windrose pdf document Link to 9am April windrose pdf document Link to 9am May windrose pdf document Link to 9am June windrose pdf document Link to 9am July windrose pdf document Link to 9am August windrose pdf document Link to 9am September windrose pdf document Link to 9am October windrose pdf document Link to 9am November windrose pdf document Link to 9am December windrose pdf document Link to 9am Annual windrose pdf document       Climatology Map
 
StatisticsJanFebMarAprMayJunJulAugSepOctNovDecAnnualYearsPlotMap
3 pm conditions  
Mean 3pm temperature (°C) 19.820.519.216.914.612.511.912.613.715.016.818.216.0281982
2010
graph statistic  
Mean 3pm wet-bulb temperature (°C) 15.216.114.713.112.110.49.610.210.811.813.314.312.6261982
2010
graph statistic  
Mean 3pm dew-point temperature (°C) 11.712.511.510.29.78.17.27.48.09.010.411.19.7271982
2010
graph statistic  
Mean 3pm relative humidity (%) 62636467747674727069686669271982
2010
graph statistic Climatology Map
Mean 3pm cloud cover (oktas) 4.34.34.75.05.55.65.45.35.24.84.84.95.0281982
2010
graph statistic  
Mean 3pm wind speed (km/h) 24.824.022.620.519.320.521.825.325.325.524.725.323.3281982
2010
graph statistic  
3pm wind speed vs direction plot Link to 3pm January windrose pdf document Link to 3pm February windrose pdf document Link to 3pm March windrose pdf document Link to 3pm April windrose pdf document Link to 3pm May windrose pdf document Link to 3pm June windrose pdf document Link to 3pm July windrose pdf document Link to 3pm August windrose pdf document Link to 3pm September windrose pdf document Link to 3pm October windrose pdf document Link to 3pm November windrose pdf document Link to 3pm December windrose pdf document Link to 3pm Annual windrose pdf document       Climatology Map
red = highest value   blue = lowest value
Product IDCJCM0035 Prepared at Thu 13 Aug 2020 00:43:25 AM EST

  


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_090171_All.shtml
  • Summary statistics and locational map for this site:
       http://www.bom.gov.au/climate/averages/tables/cw_090171.shtml
  • About climate averages: http://www.bom.gov.au/climate/cdo/about/about-stats.shtml
  • Data file (csv): http://www.bom.gov.au/clim_data/cdio/tables/text/IDCJCM0035_090171.csv
  • Climate averages home page URL:  http://www.bom.gov.au/climate/data/index.shtml
  • Bureau of Meteorology website:  http://www.bom.gov.au

Related information

Maps

Recent observations for this site

  • Daily Weather Observations from this site are included in the Daily Weather Observations Portland

Climate outlooks

Additional climate information

Page created: Thu 13 Aug 2020 00:43:25 AM EST