Northern Territory in October 2017: Very warm days and nights across the Top End

Both daytime and overnight temperatures were well above average across the Top End, and record warm in some places. Rainfall was above average in parts of the northwestern Top End, areas of the southwest, and pockets of the east.

Warm days and nights

  • Both daytime and overnight temperatures were well above average across the Top End for October
  • Some locations, including Gove and Daly Waters, reported their highest October mean daily maximum temperature on record
  • Very hot days at the end of the month; Lajamanu Airport reached 43.0 °C on the 29th
  • Southern parts of the Northern Territory had several cold nights at the start of October, with minimum temperatures more than eight degrees cooler than average around Alice Springs on the 2nd
  • Later in the month, minimum temperatures in the south stayed up to ten degrees warmer than average on the 25th
  • Overnight temperatures were record warm at Jabiru and Batchelor, both sites had mean minimum temperatures of more than 24.0 °C
  • A few sites had their warmest October night (highest daily minimum temperature) on record during the month, with Bradshaw and Delamere recording their warmest night on record for any month

Darwin Airport

  • Total rainfall for Darwin Airport was 104.8 mm, which is 149% of the long-term average of 70.3 mm
  • The mean daily maximum temperature for Darwin Airport was 33.9 °C, which is 0.6 °C above the long-term average of 33.3 °C. The warmest day was 35.8 °C on the 20th, and the coolest day was on the 22nd when the temperature reached 31.7 °C
  • The mean daily minimum temperature for Darwin Airport was 25.4 °C, which is 0.5 °C above the long-term average of 24.9 °C. The coldest morning was 22.2 °C on the 30th, and the warmest morning was on the 17th when the minimum temperature was 28.6 °C

Alice Springs Airport

  • Total rainfall reported from Alice Springs Airport was 19.0 mm (although 3 mm to 4 mm was missing on the 7th), close to the long-term average of 20.3 mm
  • The mean daily maximum temperature for Alice Springs Airport was 32.8 °C, which is 1.7 °C above the long-term average of 31.1 °C. The warmest day was 39.9 °C on the 25th, and the coolest day was on the 1st when the temperature reached 21.7 °C
  • The mean daily minimum temperature for Alice Springs Airport was 15.1 °C, which is 0.4 °C above the long-term average of 14.7 °C. The coldest morning was 5.9 °C on the 2nd, and the warmest morning was on the 25th when the minimum temperature was 21.9 °C

    Further information

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    Extremes in October 2017
    Hottest day 43.0 °C at Lajamanu Airport on the 29th
    Warmest days on average 40.1 °C at Bradshaw and at Daly Waters Airstrip
    Coolest days on average 31.0 °C at McCluer Island
    Coldest day 21.3 °C at Yulara Airport on the 6th
    Coldest night 5.9 °C at Alice Springs Airport on the 2nd
    Coolest nights on average 15.1 °C at Alice Springs Airport
    Warmest nights on average 26.7 °C at McCluer Island
    Warmest night 30.2 °C at Bradshaw on the 22nd
    Warmest on average overall 33.2 °C at Bradshaw
    Coolest on average overall 23.5 °C at Arltunga
    Wettest overall 211.8 mm at Pirlangimpi Airport
    Wettest day 70.8 mm at McMinns Lagoon on the 18th
    Strongest wind gust 98 km/h at Centre Island on the 16th

    Maps

    Observed Anomaly Decile rank
    Total
    rainfall
    Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
    Mean
    daily
    maximum
    temperatures
    Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
    Mean
    daily
    minimum
    temperatures
    Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

    Click on a map to show it full size in a pop-up window



    Highest October total rainfall for at least 20 years

    Observed
    (mm)
    Most recent
    higher
    Average for
    October
    Pirlangimpi Airport 211.8 228.2 in 1970* 83.7

    * note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported




    Record highest October mean daily maximum temperature

    New record
    (°C)
    Old
    record
    Years of
    record
    Average for
    October
    Daly Waters Airstrip 40.1 40.0 in 2002 47 37.4
    Gove Airport 33.5 33.1 in 2011 37 31.8
    Lajamanu Airport 39.5 39.3 in 2014 24 37.4



    Record highest October daily minimum temperature

    New record
    (°C)
    Old
    record
    Years of
    record
    Average for
    October
    Channel Point 28.5 on the 29th 28.1 on the 14th in 2000 23 24.0
    Delamere Weapons Range 29.4 on the 13th 28.6 on the 10th in 2013 21 23.8
    Bradshaw 30.2 on the 22nd 29.5 on the 4th in 2009 20 24.9
    Point Fawcett 28.9 on the 17th 28.6 on the 26th in 2005 20 23.5



    Record highest October mean daily minimum temperature

    New record
    (°C)
    Old
    record
    Years of
    record
    Average for
    October
    Jabiru Airport 25.0 = 25.0 in 1998 39 23.9
    Batchelor Airport 24.3 23.9 in 2001 20 23.0



    Record highest October mean temperature

    New record
    (°C)
    Old
    record
    Years of
    record
    Average for
    October
    Douglas River Research Farm 31.4 31.3 in 2008 27 30.0
    Delamere Weapons Range 32.0 31.9 in 2013 20 30.6

    Highest October mean temperature for at least 20 years

    Observed
    (°C)
    Most recent
    higher
    Average for
    October
    Tindal RAAF 32.4 32.7 in 1988* 30.8

    * note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported




    Summary statistics for October 2017

    Maximum temperatures
    (°C)
    Minimum temperatures
    (°C)
    Rainfall
    (millimetres)
    Mean for
    October
    2017
    Diff
    from
    average
    Highest for
    October
    2017
    Mean for
    October
    2017
    Diff
    from
    average
    Lowest for
    October
    2017
    Total for
    October
    2017
    Average
    for
    October
    Rank of
    October
    2017
    Fraction of
    October
    average
    Darwin-Daly (district 14GA)
    Batchelor Airport 36.6 -0.2 38.5 12th 24.3 +1.3 22.3 17th 160.4 66.7 v high 240%
    Bradshaw 40.1 +1.2 42.2 16th 26.2 +1.3 21.2 23rd 21.4 21.9 average 98%
    Central Arnhem Plateau 36.5 +1.0 38.1 25th 23.7 +1.8 20.4 30th 30.0 27.6 high 109%
    Charles Point 32.8   33.8 17th 26.5   22.2 19th 54.0


    Croker Island Airport 34.1   35.6 20th 25.4   23.6 1st 34.8


    Darwin Airport 33.9 +0.6 35.8 20th 25.4 +0.5 22.2 30th 104.8 70.7 high 148%
    Delamere Weapons Range 39.1 +1.7 41.5 28th 24.8 +1.0 18.3 23rd 3.8 28.5 low 13%
    Douglas River Research Farm 38.9 +1.2 40.8 17th 23.8 +1.5 20.9 23rd 19.8 36.0 average 55%
    Dum In Mirrie Airstrip 32.8 0.0 34.5 8th 26.1 +0.7 22.6 26th N/A 60.7 N/A N/A
    Jabiru Airport 38.0 +0.4 40.0 14th 25.0 +1.1 22.2 17th 129.4 40.5 v high 320%
    Kangaroo Flats (Defence) 36.4   38.4 8th 24.6   23.0 3rd 143.8


    Katherine Country Club 39.4   41.4 28th 25.5   22.4 23rd 12.0


    McCluer Island 31.0 +0.5 32.9 16th 26.7 +0.5 23.2 17th 27.2 8.1 v high 336%
    Middle Point 37.3 -0.1 40.1 14th 23.8 +1.8 22.2 11th 89.8 46.4 high 194%
    Mount Bundey North (Defence) 37.8   39.4 13th 25.5   22.5 16th 71.6


    Mount Bundey South (Defence) 38.4   40.3 12th 25.4   23.1 16th 87.4


    Murganella Airstrip 35.4   37.6 15th 23.4   20.6 1st 17.4


    Noonamah Airstrip 36.1   38.1 12th 24.7   23.2 3rd 81.4


    Oenpelli Airport 38.2   40.6 14th 24.0   21.3 17th 11.0


    Pirlangimpi Airport 34.4 +0.8 36.2 8th 24.2 +1.2 21.8 19th 211.8 83.7 v high 253%
    Point Fawcett 33.8 +0.8 35.3 10th 24.8 +1.3 22.2 10th 98.4 67.8 high 145%
    Point Stuart 35.1   37.3 17th 25.2   22.9 18th 79.8 57.0 average 140%
    Port Keats Airport 35.0 +0.6 37.9 23rd 25.5 +1.6 22.8 21st 54.8 42.0 average 130%
    Tindal RAAF 39.1 +1.5 40.8 28th 25.7 +1.8 22.0 23rd 27.8 32.6 average 85%
    Arnhem (district 14BC)
    Cape Wessel 34.4   35.7 23rd 25.8   24.1 29th 12.4 12.2 high 102%
    Gove Airport 33.5 +1.7 35.6 24th 23.0 +1.5 19.0 24th 7.8 10.5 high 74%
    Groote Eylandt Airport 34.3 +0.2 36.1 29th 22.0 +1.1 16.1 24th 13.8 26.5 average 52%
    Maningrida Airport 33.9 +0.8 35.9 24th 24.1 +1.2 22.1 9th 19.8 12.9 high 153%
    Milingimbi Airport 34.2 +1.3 38.1 24th 24.6 +1.0 20.6 24th 1.2 8.4 average 14%
    Ngayawili 33.5 +0.8 36.3 24th 23.4 +0.9 19.7 24th 6.8 10.3 average 66%
    Warruwi Airport 33.3 +0.8 35.0 16th 26.0 +0.6 22.0 18th 58.2 12.5 v high 466%
    Roper-Mcarthur (district 14DE)
    Borroloola Airport 38.3 +1.7 42.0 15th 22.6 +1.3 17.2 24th 0 13.6 lowest 0%
    Bulman 39.1 +0.8 41.0 28th 23.3 +1.7 19.3 25th 0.6 18.3 average 3%
    Centre Island 34.3 +1.3 36.6 28th 26.1 +1.2 24.6 24th 3.0 8.1 average 37%
    Daly Waters Airstrip 40.1 +2.7 42.4 30th 21.3 +0.3 11.3 23rd 0.6 21.3 low 3%
    McArthur River Mine Airport 39.2 +1.4 41.5 15th 23.2 +2.1 16.9 24th 0 19.8 lowest 0%
    Ngukurr Airport 40.0   42.4 16th 24.0   17.5 24th 0.6


    Victoria (district 14F)
    Lajamanu Airport 39.5 +2.1 43.0 29th 22.0 +1.6 14.7 24th 6.8 19.1 average 36%
    Victoria River Downs 39.6 +1.7 41.6 29th 23.2 +0.9 13.5 23rd 16.4 19.2 average 85%
    Wave Hill 38.6 +1.0 41.5 25th 23.4 +1.8 14.6 23rd 8.7 26.9 average 32%
    Barkly (district 15A)
    Elliott 38.6 +0.7 41.5 28th 22.7 +1.9 15.6 24th 1.0 21.2 low 5%
    Tennant Creek Airport 36.3 +1.5 40.6 26th 23.0 +1.3 16.8 1st 5.8 19.2 average 30%
    Alice Springs (district 15B)
    Alice Springs Airport 32.6 +1.5 39.9 25th 15.1 +0.4 5.9 2nd 19.0 20.2 average 94%
    Arltunga 31.8 +0.6 39.6 25th 15.2 +1.1 7.9 3rd 23.6 21.3 average 111%
    Curtin Springs 32.1 +0.3 39.5 26th 15.4 +1.1 9.1 2nd 38.0 18.2 high 209%
    Jervois 34.3 +1.0 42.4 27th 16.9 +1.3 9.4 2nd 13.4 14.4 average 93%
    Rabbit Flat 37.6 +0.4 42.9 26th 20.1 +1.9 12.4 23rd 23.8 19.9 average 120%
    Territory Grape Farm 33.9 +0.6 40.0 25th 16.0 +0.5 9.2 2nd 25.8 14.7 high 176%
    Walungurru Airport 36.2 +0.2 41.2 26th 21.5 +0.6 16.0 1st 34.8 16.5 high 211%
    Yulara Airport 32.2 -0.1 38.9 27th 16.2 +1.3 10.2 2nd 51.4 21.1 high 244%

    Notes

    The Monthly climate summary, generally published on the first working day of each month, lists the main features of the weather in Northern Territory using the most timely and accurate information available on the date of publication; it will generally not be updated. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

    This statement has been prepared based on information available at 10 am on Wednesday 1 November 2017. 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.

    Further information

    Media
    (03) 9669 4057
    Enquiries