Overview Realtime Historical Map View

Illinois River At Marseilles, Il Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014
01-01 15874.44
01-02 15711.25
01-03 14817.78
01-04 13367.78
01-05 12436.67
01-06 11527.78
01-07 8745.56
01-08 8436.67
01-09 8798.89
01-10 11107.78
01-11 11627.78
01-12 14020.0
01-13 14315.56
01-14 13932.22
01-15 12107.78
01-16 10888.89
01-17 10015.0
01-18 9538.0
01-19 8669.0
01-20 9633.0
01-21 8794.0
01-22 8360.0
01-23 8541.0
01-24 8761.0
01-25 10135.0
01-26 12502.22
01-27 14195.56
01-28 12582.0
01-29 11506.0
01-30 10273.64
01-31 9625.45
02-01 9177.27
02-02 9342.73
02-03 9280.91
02-04 10640.0
02-05 10960.91
02-06 11455.0
02-07 11233.0
02-08 11280.0
02-09 10525.45
02-10 10147.27
02-11 9942.0
02-12 9316.36
02-13 9243.64
02-14 9456.36
02-15 8252.73
02-16 8942.73
02-17 8654.0
02-18 10291.0
02-19 10621.0
02-20 10766.36
02-21 14363.64
02-22 17153.64
02-23 18463.0
02-24 17421.82
02-25 13230.0
02-26 12824.0
02-27 15839.09
02-28 15656.36
02-29 9513.33
03-01 15891.82
03-02 15010.91
03-03 13941.82
03-04 13381.82
03-05 13740.91
03-06 15150.0
03-07 14084.55
03-08 13491.82
03-09 13244.55
03-10 13843.33
03-11 14317.0
03-12 16324.55
03-13 15176.0
03-14 14159.0
03-15 15961.82
03-16 15258.18
03-17 16020.91
03-18 15293.64
03-19 13875.0
03-20 14088.18
03-21 14441.67
03-22 13145.45
03-23 12050.0
03-24 12224.17
03-25 13112.5
03-26 13948.33
03-27 13716.67
03-28 13701.67
03-29 12999.17
03-30 13543.33
03-31 16275.45
04-01 18573.33
04-02 20262.5
04-03 21300.0
04-04 21469.17
04-05 20820.83
04-06 19706.67
04-07 20202.5
04-08 19084.17
04-09 17772.73
04-10 16736.67
04-11 15204.17
04-12 13786.36
04-13 13030.0
04-14 12099.09
04-15 12138.0
04-16 13345.0
04-17 14743.0
04-18 14079.0
04-19 13946.0
04-20 13374.0
04-21 12130.91
04-22 11876.36
04-23 10292.73
04-24 10150.0
04-25 9687.0
04-26 10109.09
04-27 11259.09
04-28 10589.09
04-29 11267.27
04-30 16870.91
05-01 23335.0
05-02 22874.0
05-03 22564.0
05-04 20347.0
05-05 20178.18
05-06 17603.64
05-07 16530.0
05-08 14189.0
05-09 14998.18
05-10 18801.11
05-11 19214.55
05-12 18079.09
05-13 17030.91
05-14 13035.56
05-15 14854.0
05-16 17300.0
05-17 16700.0
05-18 16496.36
05-19 19611.82
05-20 20282.0
05-21 15184.55
05-22 15019.09
05-23 13943.64
05-24 14483.64
05-25 13744.55
05-26 12351.82
05-27 11975.45
05-28 11616.36
05-29 12360.0
05-30 12805.45
05-31 12769.09
06-01 12584.55
06-02 11492.73
06-03 10520.91
06-04 9466.36
06-05 9368.0
06-06 9536.0
06-07 9839.0
06-08 9884.0
06-09 10840.91
06-10 12172.73
06-11 12308.18
06-12 13242.73
06-13 13508.18
06-14 15338.0
06-15 14523.64
06-16 15729.09
06-17 16538.18
06-18 15795.45
06-19 15594.0
06-20 15947.0
06-21 14966.0
06-22 16503.0
06-23 20526.0
06-24 19552.0
06-25 17092.0
06-26 16539.0
06-27 17748.0
06-28 19452.0
06-29 19376.0
06-30 18973.0
07-01 18662.0
07-02 17611.0
07-03 16166.0
07-04 15173.0
07-05 13561.82
07-06 13824.55
07-07 12843.0
07-08 12375.0
07-09 9887.0
07-10 10327.27
07-11 9850.91
07-12 8203.0
07-13 11241.0
07-14 12257.27
07-15 12306.0
07-16 11949.0
07-17 11613.0
07-18 11447.0
07-19 12455.0
07-20 12903.0
07-21 11782.0
07-22 10862.0
07-23 11922.0
07-24 12160.0
07-25 12743.0
07-26 11449.0
07-27 9929.0
07-28 8746.0
07-29 8974.0
07-30 8307.0
07-31 7200.0
08-01 7552.5
08-02 6228.0
08-03 5901.0
08-04 5722.0
08-05 5978.0
08-06 5122.0
08-07 5622.0
08-08 6213.33
08-09 6245.56
08-10 6483.33
08-11 6275.0
08-12 5489.0
08-13 7204.44
08-14 5984.0
08-15 5769.0
08-16 5844.44
08-17 6475.0
08-18 8105.0
08-19 7667.78
08-20 8607.78
08-21 9003.33
08-22 10026.67
08-23 7430.0
08-24 5337.78
08-25 5088.89
08-26 7015.0
08-27 6600.0
08-28 8041.0
08-29 8193.0
08-30 8299.0
08-31 7542.22
09-01 6263.0
09-02 5810.0
09-03 5502.0
09-04 5319.0
09-05 5573.33
09-06 5222.1
09-07 5374.0
09-08 6399.0
09-09 6150.0
09-10 5901.7
09-11 6576.0
09-12 7074.0
09-13 6703.3
09-14 6738.0
09-15 5820.3
09-16 5831.11
09-17 5537.7
09-18 6987.0
09-19 7550.0
09-20 6691.0
09-21 5703.33
09-22 6319.0
09-23 6180.0
09-24 5342.3
09-25 5431.0
09-26 4910.0
09-27 4950.0
09-28 6154.0
09-29 10118.0
09-30 9767.89
10-01 9112.5
10-02 7201.11
10-03 6434.44
10-04 6287.33
10-05 6125.0
10-06 5975.4
10-07 6332.0
10-08 7492.0
10-09 6466.0
10-10 6341.2
10-11 6649.0
10-12 7140.0
10-13 7028.0
10-14 7857.2
10-15 9103.33
10-16 9424.44
10-17 8022.0
10-18 7309.0
10-19 6390.0
10-20 5842.1
10-21 5075.56
10-22 5545.9
10-23 5406.1
10-24 6012.0
10-25 7958.0
10-26 11342.0
10-27 12713.0
10-28 14755.0
10-29 13324.0
10-30 11524.0
10-31 13440.0
11-01 15725.0
11-02 11994.44
11-03 10507.0
11-04 9612.0
11-05 8352.0
11-06 7048.89
11-07 6854.44
11-08 7372.22
11-09 5861.11
11-10 6254.44
11-11 6050.0
11-12 5357.78
11-13 5892.5
11-14 5790.0
11-15 5947.0
11-16 5318.0
11-17 5444.0
11-18 5830.0
11-19 7060.0
11-20 8598.75
11-21 7887.78
11-22 7887.78
11-23 7134.0
11-24 5910.0
11-25 5603.33
11-26 6478.0
11-27 8300.0
11-28 8315.56
11-29 9812.0
11-30 9952.0
12-01 9169.0
12-02 9293.0
12-03 10513.0
12-04 9667.0
12-05 9082.0
12-06 7944.44
12-07 7502.0
12-08 7428.0
12-09 7406.0
12-10 6084.0
12-11 6663.64
12-12 7003.64
12-13 7252.0
12-14 6780.0
12-15 7558.0
12-16 7348.0
12-17 8600.0
12-18 7488.89
12-19 7145.56
12-20 6558.89
12-21 6521.11
12-22 6692.0
12-23 7448.0
12-24 8043.0
12-25 10045.0
12-26 8299.0
12-27 8815.56
12-28 10734.44
12-29 9016.25
12-30 16311.11
12-31 16914.44

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index