Copyright © Government of Western Australia
Information supplied by the Department of Water and Environmental Regulation is protected by the Copyright Act 1968. That copyright belongs to the State of Western Australia.
Apart from any fair dealing for the purpose of private study, research, criticism or review, as permitted under the Copyright Act 1968, no part may be
reproduced or reused for any purpose without the written permission of the Department of Water and Environmental Regulation. Please click on the Copyright
link for full details.
Disclaimer / limitation of liability
The information contained herein is provided by the Department of Water and Environmental Regulation in good faith as a public service.
However, the Department does not guarantee the accuracy of this information, and it is the responsibility of recipients to make their own enquiries
as to its accuracy, currency and appropriateness. Telemetered data is provisional only and has not been verified for accuracy. If any aspect of this information is of significance to you, you should
discuss your particular circumstances with the Department. Please click on the Disclaimer
link for full details.
Should you require further information or technical assistance, please contact one of our water information officers.
Department of Water and Environmental Regulation HYMONTH V128 Output 13/08/2026
Site 809339 Ord River - Tarrara Bar Site 809339
VarFrom 10.00 Stage - SL in Metres
VarTo 140.00 Mean Stream Discharge in Cubic Metres/Second
Figures are for period ending 24:00
Mean Median Missing
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Monthly Monthly Days Yr
1998 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [213.5 ] 258.4 # 189.9 # [220.6 ] [213.5 ] 277 1998
1999 246.2 # 360.8 # 130.5 # 106.4 # 84.86# 65.11# 52.27# 53.18# 49.11# 55.69# 61.73# 60.13# 110.5 # 63.42# 0 1999
2000 141.1 # 949.9 #2118 # 998.5 # 760.5 # 602.0 # 417.9 # 199.6 # 106.7 # 66.93# 69.21# 94.95# 543.7 # 308.7 # 0 2000
2001 233.9 # 908.3 #1534 #1105 # 773.3 # 542.0 # 345.7 # 162.6 # 88.69# 58.95# 102.7 # 134.4 " 499.1 # 289.8 # 0 2001
2002 187.9 # 788.8 # 570.4 # 385.8 # 177.9 " 84.24" 61.81" 68.92" 73.14" 71.20" 80.23" 79.74" 219.2 # 82.23# 0 2002
2003 72.50" 130.8 " 158.7 # 70.52" 66.65" 64.29" 65.73" 66.62" 72.61" 70.76" 73.33" 110.3 # 85.23# 71.63# 0 2003
2004 307.7 # 520.6 # 678.0 # 458.2 # 286.0 " 130.8 " 71.26" 62.98" 64.95" 71.95" 72.17" 77.43" 233.5 # 104.1 # 0 2004
2005 143.7 # 80.34" 293.3 # 62.87" 70.25" 68.45" 66.60" 69.79" 74.61" 80.85" 78.24" 93.69" 98.56# 76.42# 0 2005
2006 255.4 # 408.7 #1022 # 497.9 # 290.9 # 121.7 " 75.36" 59.61$ 63.20# 61.42" 66.81" 70.79" 249.5 $ 98.52$ 0 2006
2007 120.9 " 91.37" 239.2 # 190.6 # 84.29" 68.35" 65.18" 60.67" 69.22" 69.12" 74.22" 75.33# 100.7 # 74.77# 0 2007
2008 153.9 # 417.9 # 283.4 # 109.6 " 72.01" 65.05" 64.80" 65.28" 68.82" 69.54" 72.49" 210.4 # 137.8 # 72.25# 0 2008
2009 322.5 # 734.8 $ 390.0 # 164.1 " 74.71" 63.44" 63.81" 64.16" 66.06" 65.25" 70.69# 74.17" 179.5 $ 72.43$ 0 2009
2010 117.1 " 122.8 # 126.7 # 74.84" 74.23" 66.91" 66.63" 63.18" 71.04" 73.26" 71.04" 77.93" 83.80# 73.75# 0 2010
2011 143.7 # 378.0 #1597 #1681 #1019 # 716.9 # 538.6 # 407.0 # 232.7 " 120.9 " 112.7 " 91.53" 586.6 # 392.5 # 0 2011
2012 92.73" 94.95" 449.7 # 204.8 " 106.3 " 68.01" 67.40" 68.65" 70.37" 73.83" 78.48" 88.44" 122.0 # 83.46# 0 2012
2013 87.96" 92.85" 95.95" 89.68" 69.08" 66.79" 65.94" 71.67" 75.08" 74.42" 72.32" 114.6 # 81.36# 74.75# 0 2013
2014 283.6 # 942.9 # 458.5 # 311.3 " 145.7 " 75.27" 64.75" 61.41" 65.96" 64.21" 76.13" 94.41# 220.3 # 85.27# 0 2014
2015 264.9 # 123.2 # 96.15" 67.20" 59.52" 59.86" 60.00" 61.25" 68.38" 74.57" 66.15$ 139.6 # 95.06$ 67.79$ 0 2015
2016 92.51" 126.2 " 102.7 " 77.33" 71.92" 62.25" 64.26" 66.78" 71.13" 76.31" 78.02" 160.0 # 87.45# 76.82# 0 2016
2017 744.8 #1097 # 880.2 # 639.1 # 471.6 # 325.8 " 161.6 " 86.50" 63.16" 78.85" 84.25" 85.70" 393.2 # 243.7 # 0 2017
2018 195.6 # 181.3 # 107.6 " 74.60" 62.48" 61.82" 66.88" 61.23" 71.02" 80.19" 78.79" 85.62" 93.93# 76.70# 0 2018
2019 116.6 " 146.5 " 83.46" 70.66" 63.68" 61.45" 65.67" 67.00" 66.98" 75.08" 79.66" 82.64" 81.62" 72.87" 0 2019
2020 111.5 " 223.9 # 227.0 # 72.54" 67.21" 64.77" 62.64" 67.53" 70.54" 78.56" 77.03" 86.59" 100.8 # 74.78# 0 2020
2021 149.4 & 231.3 # 169.3 # 64.87" 55.31" 59.11" 61.24" 61.18" 61.48" 63.69" 64.03" 64.58" 92.13& 63.86& 0 2021
2022 205.8 # 212.6 # 76.40" 71.40" 64.39" 60.65" 59.85" 61.44" 63.89" 64.91" 79.04" 119.2 " 94.96# 68.16# 0 2022
2023 225.4 # 435.2 # 534.3 # 373.0 # 174.2 " 88.20" 75.60" 63.97" 65.07" 58.60" 58.66" 61.86" 184.5 # 81.90# 0 2023
2024 209.1 # 364.2 #1161 # 839.3 # 576.5 # 438.1 # 277.1 " 128.4 " 77.17" 63.00" 65.66" 87.48" 357.3 # 243.1 # 0 2024
2025 108.9 # 202.0 # 142.4 " 136.1 " 72.16" 66.91" 67.07" 68.39" 64.84" 61.56" 69.82" 78.62" 94.90# 70.99# 0 2025
2026 136.6 #190.9 #861.7 #460.5 #297.4 "138.6 " 81.04 "[69.80 ] [ ] [ ] [ ] [ ] [279.6 ][164.8 ] 142 2026
419 Total
Mean 195.4 &377.1 $521.0 #337.8 #221.1 #155.6 #116.3 #[88.17 ] 76.14 #[76.32 ] 81.86 $ 99.64 # [197.5 ] Mean
Med. 151.7 &227.6 $288.3 #150.1 # 79.50 # 67.46 # 66.27 #[66.70 ] 69.22 #[70.98 ] 73.77 $ 87.03 # [79.04 ] Med.
Max 744.8 &1097 $2118 #1681 #1019 # 716.9 # 538.6 #[407.0 ] 232.7 #[213.5 ] 258.4 $ 210.4 # [586.6 ] Max
Min 72.50& 80.34$ 76.40# 62.87# 55.31# 59.11# 52.27# [53.18] 49.11# [55.69] 58.66$ 60.13# [81.36] Min
OK 100% 100% 100% 100% 100% 100% 100% 98% 100% 100% 100% 100% 100% OK
Cnt 28 28 28 28 28 28 28 28 27 28 28 28 29 Cnt
------------------ Notes -------------------
All recorded data is continuous and reliable
except where the following tags are used...
" ... Relative Uncertainty +/-10%
# ... Relative Uncertainty +/-15%
$ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
[ ... Not Available
Department of Water and Environmental Regulation HYMONTH V128 Output 13/08/2026
Site 809339 Ord River - Tarrara Bar Site 809339
VarFrom 10.00 Stage - SL in Metres
VarTo 140.00 Maximum Stream Discharge in Cubic Metres/Second
Figures are for period ending 24:00
Annual Missing
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Max Days Yr
1998 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [234.4 ] 283.4 # 303.2 # [303.2 ] 277 1998
1999 536.0 # 757.4 # 143.7 # 117.7 # 95.48# 74.36# 56.72# 55.71# 53.09# 59.85# 62.69# 65.01# 757.4 # 0 1999
2000 269.9 #2400 #4300 #1110 # 955.2 # 668.0 # 528.2 # 304.4 # 131.4 # 83.80# 94.62# 122.8 # 4300 # 0 2000
2001 554.2 #1281 #1743 #1353 # 907.1 # 649.3 # 444.2 # 246.9 # 109.3 # 73.25# 570.2 # 413.6 " 1743 # 0 2001
2002 528.5 #5196 # 792.3 # 510.6 # 335.1 " 173.1 " 75.57" 95.87" 91.54" 96.08" 91.13" 104.0 " 5196 # 0 2002
2003 91.13" 418.6 " 659.6 # 83.71" 101.4 " 111.0 " 87.92" 77.76" 89.72" 76.96" 82.46" 887.4 # 887.4 # 0 2003
2004 2555 #1424 #1018 # 558.9 # 389.8 " 189.5 " 84.79" 76.56" 77.76" 80.40" 84.98" 114.4 " 2555 # 0 2004
2005 502.1 # 217.7 "3657 # 85.19" 92.56" 91.54" 87.32" 97.35" 82.25" 97.13" 89.72" 232.2 " 3657 # 0 2005
2006 1339 # 541.0 #8164 # 791.4 # 449.4 # 188.3 " 92.15" 76.76$ 77.96# 66.09" 75.38" 128.9 " 8164 $ 0 2006
2007 336.5 " 289.9 "1406 #1314 # 118.9 " 131.9 " 72.26" 71.88" 80.60" 88.52" 88.52" 252.0 # 1406 # 0 2007
2008 444.5 #2131 #1176 # 178.3 " 78.97" 75.77" 80.81" 71.69" 80.81" 82.46" 92.56" 851.6 # 2131 # 0 2008
2009 934.9 #2011 $ 734.8 # 249.1 " 91.78" 83.71" 75.57" 69.79" 70.74" 77.56" 85.19# 118.2 " 2011 $ 0 2009
2010 391.6 " 546.2 # 834.2 # 99.04" 109.6 " 82.11" 75.77" 76.96" 84.98" 111.2 " 87.92" 144.2 " 834.2 # 0 2010
2011 788.8 #1468 #4912 #4584 #1236 # 832.2 # 656.2 # 472.5 # 335.9 " 157.9 " 228.3 " 123.7 " 4912 # 0 2011
2012 130.2 " 386.5 "1352 # 425.6 " 165.7 " 85.40" 91.13" 83.92" 90.73" 109.8 " 106.5 " 160.4 " 1352 # 0 2012
2013 177.8 " 199.5 " 155.4 " 307.1 " 79.78" 85.19" 86.04" 108.9 " 88.91" 95.66" 88.71" 804.0 # 804.0 # 0 2013
2014 2279 #4895 #1274 # 424.0 " 228.1 " 103.6 " 93.59" 70.93" 76.76" 81.84" 96.29" 446.1 # 4895 # 0 2014
2015 942.7 # 633.8 # 167.4 " 101.6 " 77.96" 75.38" 73.23" 76.76" 92.35" 90.73" 123.7 $ 498.0 # 942.7 $ 0 2015
2016 123.5 " 398.1 " 198.5 " 135.5 " 112.4 " 78.16" 83.09" 78.37" 84.13" 88.52" 90.73" 515.0 # 515.0 # 0 2016
2017 2679 #2181 #1351 # 754.0 # 557.3 # 399.0 " 222.6 " 113.7 " 76.96" 90.93" 160.4 " 132.7 " 2679 # 0 2017
2018 822.3 # 492.5 # 251.4 " 83.09" 71.69" 78.37" 82.67" 69.61" 80.19" 94.42" 93.79" 132.7 " 822.3 # 0 2018
2019 385.6 " 348.2 " 96.08" 82.46" 77.36" 77.16" 77.36" 89.32" 94.00" 103.1 " 93.18" 99.26" 385.6 " 0 2019
2020 400.2 "2795 #2644 # 85.83" 91.95" 79.99" 77.56" 77.36" 109.8 " 113.5 " 88.91" 279.2 " 2795 # 0 2020
2021 968.3 & 556.1 # 442.0 # 84.98" 62.34" 65.37" 78.37" 78.16" 71.12" 85.83" 106.5 " 107.4 " 968.3 & 0 2021
2022 876.3 # 684.5 # 112.6 " 118.9 " 88.91" 70.93" 67.19" 69.79" 72.65" 84.13" 335.1 " 380.5 " 876.3 # 0 2022
2023 982.9 #2768 #2097 # 661.7 # 292.8 " 115.6 " 100.5 " 82.05" 75.57" 77.96" 69.79" 75.38" 2768 # 0 2023
2024 713.7 # 627.7 #3816 #1291 # 668.1 # 513.5 # 384.1 " 183.4 " 116.1 " 78.37" 136.0 " 269.6 " 3816 # 0 2024
2025 892.1 # 489.3 # 227.0 " 253.7 " 134.5 " 84.34" 76.56" 77.36" 74.79" 73.42" 123.0 " 155.1 " 892.1 # 0 2025
2026 562.9 # 638.5 #1741 # 559.5 # 397.7 " 202.0 " 111.9 " [83.29] [ ] [ ] [ ] [ ] [1741 ] 142 2026
419 Total
Mean 793.2 &1313 $1624 # 585.8 # 288.1 # 195.2 # 147.3 #[112.0 ] 95.19# [94.78] 133.2 $ 282.7 # [2245 ] Mean
Med. 558.6 & 636.1 $1097 # 280.4 # 115.6 # 88.47# 83.94# [77.96] 82.25# [87.17] 92.87$ 157.7 # Med.
Max 2679 &5196 $8164 #4584 #1236 # 832.2 # 656.2 #[472.5 ] 335.9 #[234.4 ] 570.2 $ 887.4 # [8164 ] Max
Min 91.13& 199.5 $ 96.08# 82.46# 62.34# 65.37# 56.72# [55.71] 53.09# [59.85] 62.69$ 65.01# [303.2 ] Min
OK 100% 100% 100% 100% 100% 100% 100% 98% 100% 100% 100% 100% 100% OK
Cnt 28 28 28 28 28 28 28 28 27 28 28 28 29 Cnt
------------------ Notes -------------------
All recorded data is continuous and reliable
except where the following tags are used...
" ... Relative Uncertainty +/-10%
# ... Relative Uncertainty +/-15%
$ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
[ ... Not Available
Department of Water and Environmental Regulation HYMONTH V128 Output 13/08/2026
Site 809339 Ord River - Tarrara Bar Site 809339
VarFrom 10.00 Stage - SL in Metres
VarTo 140.00 Minimum Stream Discharge in Cubic Metres/Second
Figures are for period ending 24:00
Annual Missing
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Min Days Yr
1998 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [191.2 ] 234.4 # 111.4 # [111.4 ] 277 1998
1999 119.5 # 143.7 # 117.7 # 95.48# 74.36# 56.72# 48.91# 49.96# 46.22# 49.90# 59.85# 52.53# 46.22# 0 1999
2000 44.52# 129.2 #1110 # 955.2 # 668.0 # 528.2 # 304.4 # 131.4 # 83.80# 60.48# 59.73# 61.64# 44.52# 0 2000
2001 62.52# 554.2 #1281 # 907.1 # 649.3 # 444.2 # 246.9 # 109.3 # 70.65# 9.96# 63.04# 73.42" 9.96# 0 2001
2002 104.9 # 91.54# 456.8 # 261.8 # 105.6 " 62.75" 49.82" 56.04" 65.19" 30.30" 62.86" 49.06" 30.30# 0 2002
2003 49.52" 67.74" 73.03# 54.40" 52.80" 48.60" 54.24" 55.38" 61.98" 59.39" 41.22" 61.11# 41.22# 0 2003
2004 77.36# 121.3 # 530.3 # 385.3 # 143.1 " 84.79" 47.11" 33.76" 44.38" 65.37" 47.40" 48.60" 33.76# 0 2004
2005 68.67# 49.82" 51.38# 49.21" 56.37" 50.60" 52.32" 63.40" 64.65" 64.83" 57.70" 70.36" 49.21# 0 2005
2006 82.05 #273.6 #307.1 #401.4 #168.5 # 76.36 " 55.38 " 24.14 $ 33.03 # 56.70 " 58.20 " 45.08 " 24.14 $ 0 2006
2007 63.04 " 42.30 " 54.08 #116.3 # 58.71 " 47.70 " 54.89 " 44.80 " 47.11 " 46.66 " 58.20 " 20.88 # 20.88 # 0 2007
2008 81.63 # 90.32 #125.9 # 61.98 " 58.37 " 57.20 " 54.08 " 52.80 " 64.47 " 39.89 " 40.03 " 69.04 # 39.89 # 0 2008
2009 94.00 #283.3 $247.3 # 91.78 " 59.73 " 50.29 " 53.27 " 51.38 " 50.75 " 49.06 " 50.44 # 50.29 " 49.06 $ 0 2009
2010 63.57 " 64.47 # 62.86 # 39.11 " 50.02 " 47.25 " 56.37 " 40.29 " 58.71 " 45.65 " 62.34 " 62.34 " 39.11 # 0 2010
2011 76.17# 95.04# 357.4 #1232 # 776.7 # 608.2 # 468.0 # 169.7 # 141.3 " 74.20" 72.26" 41.09" 41.09# 0 2011
2012 70.74" 17.09" 106.9 # 137.6 " 40.29" 44.66" 51.69" 51.38" 38.85" 55.54" 64.11" 63.22" 17.09# 0 2012
2013 57.70" 69.23" 68.30" 33.52" 39.37" 53.27" 51.06" 24.43" 52.64" 49.21" 15.78" 62.34# 15.78# 0 2013
2014 67.74# 87.52# 69.42# 178.1 " 101.2 " 57.20" 45.37" 53.27" 57.53" 45.94" 55.05" 58.88# 45.37# 0 2014
2015 79.17# 42.71# 60.59" 53.43" 52.48" 48.60" 54.24" 46.51" 62.69" 58.37" 5.42$ 79.17# 5.42$ 0 2015
2016 78.77 " 60.42 " 73.62 " 65.19 " 59.22 " 43.40 " 50.44 " 47.40 " 43.26 " 66.09 " 63.04 " 56.53 # 43.26 # 0 2016
2017 132.4 #481.0 #748.7 #548.9 #394.4 #222.0 "109.2 " 25.33 " 49.52 " 59.05 " 30.41 " 36.56 " 25.33 # 0 2017
2018 71.50 #101.8 # 77.36 " 21.60 " 52.80 " 51.85 " 54.08 " 57.36 " 58.88 " 67.19 " 54.40 " 66.09 " 21.60 # 0 2018
2019 70.74 " 64.83 " 65.55 " 60.42 " 45.51 " 49.67 " 51.38 " 51.53 " 48.91 " 56.70 " 57.53 " 71.69 " 45.51 " 0 2019
2020 62.16 " 63.57 # 74.59 # 59.05 " 50.75 " 50.91 " 46.51 " 57.87 " 56.86 " 56.86 " 48.60 " 49.06 " 46.51 # 0 2020
2021 54.08 & 88.71 # 68.86 # 52.95 " 50.91 " 54.56 " 52.48 " 51.22 " 48.76 " 46.08 " 47.55 " 48.91 " 46.08 & 0 2021
2022 46.51 # 73.03 # 54.89 " 49.82 " 48.45 " 51.85 " 55.71 " 51.22 " 58.20 " 47.70 " 40.82 " 55.71 " 40.82 # 0 2022
2023 88.32 # 68.67 #359.1 #280.5 #112.4 " 71.31 " 60.77 " 19.31 " 53.43 " 48.00 " 54.40 " 46.22 " 19.31 # 0 2023
2024 59.73 #137.3 #433.6 #661.0 #501.5 #374.3 #174.9 " 78.37 " 57.53 " 47.25 " 45.51 " 41.09 " 41.09 # 0 2024
2025 58.71 # 74.40 #101.8 " 84.13 " 49.52 " 58.03 " 58.37 " 61.81 " 53.43 " 57.20 " 55.71 " 59.56 " 49.52 # 0 2025
2026 65.01 # 50.75 #495.4 #388.6 #190.7 " 95.66 " 47.70 "[58.71 ] [ ] [ ] [ ] [ ] [47.70 ] 142 2026
419 Total
Mean 73.24 &124.6 $272.6 #261.6 #168.2 #124.6 # 89.62 #[57.79 ] 58.25 #[57.31 ] 57.36 $ 57.57 # [37.63 ] Mean
Med. 69.70 & 80.96 $104.4 # 93.63 # 58.97 # 55.64 # 54.08 #[51.45 ] 56.86 #[56.12 ] 55.38 $ 57.71 # Med.
Max 132.4 & 554.2 $1281 #1232 # 776.7 # 608.2 # 468.0 #[169.7 ] 141.3 #[191.2 ] 234.4 $ 111.4 # [111.4 ] Max
Min 44.52& 17.09$ 51.38# 21.60# 39.37# 43.40# 45.37# [19.31] 33.03# [9.96] 5.42$ 20.88# [5.42] Min
OK 100% 100% 100% 100% 100% 100% 100% 98% 100% 100% 100% 100% 100% OK
Cnt 28 28 28 28 28 28 28 28 27 28 28 28 29 Cnt
------------------ Notes -------------------
All recorded data is continuous and reliable
except where the following tags are used...
" ... Relative Uncertainty +/-10%
# ... Relative Uncertainty +/-15%
$ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
[ ... Not Available