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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

ST HELENS AERODROME

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) 22.922.021.118.616.114.113.614.216.117.619.521.318.1182001
2018
graph statistic Climatology Map
Highest temperature (°C) 41.835.634.428.424.119.217.720.924.029.732.934.641.8182001
2018
graph statistic  
Date30 Jan
2009
09 Feb
2014
16 Mar
2008
01 Apr
2014
03 May
2018
04 Jun
2013
25 Jul
2007
29 Aug
2005
28 Sep
2014
31 Oct
2009
09 Nov
2009
20 Dec
2015
30 Jan
2009
    
Lowest maximum temperature (°C) 15.614.714.310.89.89.29.08.811.011.111.113.68.8182001
2018
graph statistic  
Date29 Jan
2004
08 Feb
2008
27 Mar
2008
26 Apr
2017
27 May
2016
21 Jun
2007
17 Jul
2004
03 Aug
2015
12 Sep
2013
06 Oct
2012
08 Nov
2013
13 Dec
2008
03 Aug
2015
    
Decile 1 maximum temperature (°C) 18.618.417.615.213.211.511.211.913.313.815.417.5 162001
2018
graph statistic Climatology Map
Decile 9 maximum temperature(°C) 27.625.625.022.018.916.515.717.019.421.124.125.0 162001
2018
graph statistic Climatology Map
Mean number of days ≥ 30 °C1.70.80.30.00.00.00.00.00.00.00.50.43.7182001
2018
graph statistic  
Mean number of days ≥ 35 °C0.30.10.00.00.00.00.00.00.00.00.00.00.4182001
2018
graph statistic  
Mean number of days ≥ 40 °C0.10.00.00.00.00.00.00.00.00.00.00.00.1182001
2018
graph statistic  
Minimum temperature  
Mean minimum temperature (°C)13.313.411.89.67.25.64.85.26.68.110.311.89.0182001
2018
graph statistic Climatology Map
Lowest temperature (°C)4.86.33.11.30.0-1.0-0.9-1.0-0.10.91.94.3-1.0182001
2018
graph statistic  
Date18 Jan
2004
22 Feb
2011
24 Mar
2012
30 Apr
2009
22 May
2008
22 Jun
2007
03 Jul
2015
16 Aug
2004
03 Sep
2008
09 Oct
2003
15 Nov
2006
04 Dec
2008
16 Aug
2004
    
Highest minimum temperature (°C)21.221.020.717.215.615.312.812.513.617.218.220.021.2182001
2018
graph statistic  
Date29 Jan
2018
09 Feb
2001
13 Mar
2013
20 Apr
2012
15 May
2016
06 Jun
2016
01 Jul
2013
19 Aug
2011
16 Sep
2001
12 Oct
2006
25 Nov
2010
20 Dec
2015
29 Jan
2018
    
Decile 1 minimum temperature (°C) 9.39.97.85.53.31.51.41.52.74.06.37.8 162001
2018
graph statistic Climatology Map
Decile 9 minimum temperature (°C) 17.017.115.413.311.69.78.89.611.011.913.615.3 162001
2018
graph statistic Climatology Map
Mean number of days ≤ 2 °C 0.00.00.00.21.14.06.05.12.00.50.10.019.0182001
2018
graph statistic  
Mean number of days ≤ 0 °C 0.00.00.00.00.10.40.80.80.10.00.00.02.2182001
2018
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) 64.553.164.852.652.361.647.158.051.056.183.353.0680.3142001
2018
graph statistic Climatology Map
Highest rainfall (mm) 238.4200.6173.4229.2179.0180.282.2184.8122.4208.8291.4142.61088.0182001
2018
graph statistic Climatology Map
Date2004200820112011201220162007201120092005201320082016    
Lowest rainfall (mm) 0.29.613.018.46.42.015.62.613.49.413.23.8363.4182001
2018
graph statistic Climatology Map
Date2009200320022018200920172012200620172017201420022006    
Decile 1 rainfall (mm) 19.715.025.321.611.014.720.122.921.213.513.321.0482.0182001
2018
graph statistic Climatology Map
Decile 5 (median) rainfall (mm) 39.843.650.437.736.753.444.634.050.454.780.647.2691.9182001
2018
graph statistic Climatology Map
Decile 9 rainfall (mm) 138.893.2124.578.2108.4106.571.7116.490.285.1140.084.8839.8182001
2018
graph statistic Climatology Map
Highest daily rainfall (mm) 124.270.8112.030.0104.045.033.649.061.067.263.069.4124.2182001
2018
graph statistic  
Date29 Jan
2004
27 Feb
2008
24 Mar
2011
11 Apr
2011
21 May
2017
06 Jun
2016
21 Jul
2008
11 Aug
2010
23 Sep
2009
21 Oct
2005
27 Nov
2011
14 Dec
2008
29 Jan
2004
    
Mean number of days of rain 8.910.410.112.113.616.817.816.013.111.711.910.8153.2182001
2018
graph statistic Climatology Map
Mean number of days of rain ≥ 1 mm 5.25.96.46.45.68.48.18.27.07.87.46.783.1182001
2018
graph statistic Climatology Map
Mean number of days of rain ≥ 10 mm 1.41.51.91.01.11.81.31.41.31.61.91.818.0182001
2018
graph statistic Climatology Map
Mean number of days of rain ≥ 25 mm 0.80.40.70.30.40.40.10.40.30.40.80.35.3182001
2018
graph statistic Climatology Map
 
StatisticsJanFebMarAprMayJunJulAugSepOctNovDecAnnualYearsPlotMap
Other daily elements  
Mean daily wind run (km) 321300288276268279284304311315315327299162001
2018
graph statistic  
Maximum wind gust speed (km/h) 76988593898710010094848983100182001
2018
graph statistic  
Date15 Jan
2001
03 Feb
2005
25 Mar
2004
15 Apr
2009
11 May
2018
30 Jun
2009
12 Jul
2016
09 Aug
2007
16 Sep
2001
27 Oct
2004
03 Nov
2009
11 Dec
2010
09 Aug
2007
    
Mean daily sunshine (hours)               
 
  Climatology Map
Mean daily solar exposure (MJ/m2) 23.319.315.810.57.15.36.19.313.718.221.524.214.5291990
2018
graph statistic  
Mean number of clear days              02006
2007
   
Mean number of cloudy days              02006
2007
   
Mean daily evaporation (mm)               
 
  Climatology Map
 
StatisticsJanFebMarAprMayJunJulAugSepOctNovDecAnnualYearsPlotMap
9 am conditions  
Mean 9am temperature (°C) 17.116.514.813.510.68.37.79.111.512.314.416.012.6102001
2010
graph statistic  
Mean 9am wet-bulb temperature (°C)              72001
2010
   
Mean 9am dew-point temperature (°C) 11.112.210.79.47.15.75.05.25.96.88.89.48.1102001
2010
graph statistic  
Mean 9am relative humidity (%) 70777878808484787070706675102001
2010
graph statistic Climatology Map
Mean 9am cloud cover (oktas)              82002
2010
   
Mean 9am wind speed (km/h) 12.010.59.810.811.512.312.012.912.611.412.513.011.8102001
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) 20.420.019.416.714.712.812.313.014.115.517.318.916.3102001
2010
graph statistic  
Mean 3pm wet-bulb temperature (°C)              62001
2010
   
Mean 3pm dew-point temperature (°C) 11.312.311.49.47.76.86.05.76.07.19.39.88.6102001
2010
graph statistic  
Mean 3pm relative humidity (%) 58636164646867626060625862102001
2010
graph statistic Climatology Map
Mean 3pm cloud cover (oktas)              02002
2007
   
Mean 3pm wind speed (km/h) 19.618.517.215.513.212.913.716.317.718.819.119.616.8102001
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 IDCJCM0033 Prepared at Thu 15 Nov 2018 02:53:08 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_092120_All.shtml
  • Summary statistics and locational map for this site:
       http://www.bom.gov.au/climate/averages/tables/cw_092120.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/IDCJCM0033_092120.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

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Recent observations for this site

Climate outlooks

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Page created: Thu 15 Nov 2018 02:53:08 AM EST