Overview Realtime Historical Map View

Potomac River Near Wash, Dc Little Falls Pump Sta Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 17965.83
01-02 16122.5
01-03 15035.83
01-04 14096.67
01-05 14076.67
01-06 12712.5
01-07 12225.83
01-08 11590.83
01-09 10489.17
01-10 11327.5
01-11 15106.67
01-12 15581.67
01-13 14428.33
01-14 14887.5
01-15 15954.17
01-16 14824.17
01-17 14127.5
01-18 13778.18
01-19 13245.0
01-20 12583.33
01-21 12707.5
01-22 13879.17
01-23 11717.5
01-24 9701.54
01-25 11571.54
01-26 14282.67
01-27 15301.67
01-28 14528.85
01-29 15212.31
01-30 14942.86
01-31 13790.71
02-01 16622.14
02-02 17006.43
02-03 14233.57
02-04 17375.71
02-05 21114.62
02-06 20058.18
02-07 19481.54
02-08 18741.54
02-09 19478.46
02-10 18170.0
02-11 15863.08
02-12 14472.5
02-13 14979.23
02-14 15896.15
02-15 16820.0
02-16 15899.23
02-17 16386.67
02-18 17945.83
02-19 18245.0
02-20 17059.29
02-21 15980.71
02-22 17037.5
02-23 18869.29
02-24 20773.57
02-25 21641.54
02-26 23613.85
02-27 22908.57
02-28 20719.29
02-29 16817.5
03-01 18616.43
03-02 20492.14
03-03 24147.14
03-04 21621.43
03-05 19825.71
03-06 19899.29
03-07 17632.86
03-08 17645.0
03-09 16203.57
03-10 16133.57
03-11 18762.86
03-12 19870.0
03-13 19665.0
03-14 18985.71
03-15 18311.43
03-16 16345.71
03-17 15488.57
03-18 14305.0
03-19 12706.0
03-20 12247.14
03-21 12742.67
03-22 15365.0
03-23 15903.33
03-24 14436.67
03-25 13240.67
03-26 12540.67
03-27 12383.33
03-28 12926.0
03-29 12570.0
03-30 12282.67
03-31 14552.14
04-01 14795.33
04-02 13908.67
04-03 14246.67
04-04 17031.43
04-05 18814.67
04-06 16668.67
04-07 14881.33
04-08 14743.33
04-09 15214.67
04-10 14449.33
04-11 13035.33
04-12 11703.57
04-13 13350.71
04-14 14292.14
04-15 14096.92
04-16 15331.54
04-17 16263.08
04-18 17793.08
04-19 17126.15
04-20 14785.38
04-21 14589.29
04-22 16645.0
04-23 15719.29
04-24 13307.86
04-25 11903.57
04-26 11336.43
04-27 11094.29
04-28 11976.43
04-29 12437.86
04-30 12209.29
05-01 21561.33
05-02 23160.0
05-03 19817.14
05-04 16246.67
05-05 16236.0
05-06 18258.0
05-07 24934.0
05-08 25106.0
05-09 25752.67
05-10 26824.29
05-11 21283.33
05-12 18138.0
05-13 16601.33
05-14 17676.0
05-15 17575.0
05-16 17930.71
05-17 24257.86
05-18 29653.33
05-19 27940.67
05-20 31803.57
05-21 25620.0
05-22 18693.33
05-23 16449.33
05-24 16323.33
05-25 17803.33
05-26 15893.33
05-27 13916.0
05-28 14684.67
05-29 14708.0
05-30 16658.67
05-31 15612.0
06-01 13900.77
06-02 13962.86
06-03 14985.71
06-04 15134.29
06-05 23118.46
06-06 13563.57
06-07 12080.0
06-08 10292.0
06-09 9310.0
06-10 8630.67
06-11 10494.0
06-12 11642.86
06-13 14182.86
06-14 13066.43
06-15 11924.0
06-16 9084.67
06-17 8670.67
06-18 8102.67
06-19 9181.43
06-20 9342.14
06-21 8706.43
06-22 8682.14
06-23 9417.14
06-24 12320.71
06-25 11485.0
06-26 9307.69
06-27 7911.43
06-28 8710.0
06-29 8617.69
06-30 8616.92
07-01 5631.67
07-02 7002.86
07-03 6202.86
07-04 6365.0
07-05 6146.67
07-06 5276.0
07-07 5628.57
07-08 5421.43
07-09 8680.0
07-10 6306.67
07-11 5813.33
07-12 5269.33
07-13 5191.33
07-14 4696.0
07-15 5770.71
07-16 5487.14
07-17 5078.57
07-18 4845.71
07-19 4768.57
07-20 4841.43
07-21 4441.43
07-22 6781.43
07-23 6540.71
07-24 6418.57
07-25 5975.0
07-26 6577.14
07-27 5980.0
07-28 5568.46
07-29 5422.86
07-30 5217.86
07-31 5409.29
08-01 5644.62
08-02 5584.29
08-03 6118.46
08-04 6711.43
08-05 8657.86
08-06 7041.43
08-07 6290.0
08-08 6136.15
08-09 4784.62
08-10 4860.77
08-11 4599.29
08-12 4108.57
08-13 4900.0
08-14 4601.43
08-15 4096.43
08-16 4279.23
08-17 4266.15
08-18 4012.5
08-19 4581.54
08-20 4686.15
08-21 4433.08
08-22 5067.5
08-23 5774.5
08-24 5010.23
08-25 4244.85
08-26 3768.57
08-27 3472.5
08-28 3533.07
08-29 3341.43
08-30 3160.57
08-31 2879.29
09-01 2867.86
09-02 3568.43
09-03 8449.85
09-04 7095.57
09-05 5031.0
09-06 4085.62
09-07 4460.0
09-08 4672.5
09-09 12107.5
09-10 9366.43
09-11 15643.08
09-12 13737.14
09-13 8532.86
09-14 7180.77
09-15 6536.15
09-16 5143.57
09-17 4895.0
09-18 4786.43
09-19 5639.29
09-20 8976.43
09-21 6290.71
09-22 5421.54
09-23 4830.0
09-24 6521.43
09-25 8170.0
09-26 7767.86
09-27 9336.43
09-28 9247.86
09-29 12386.43
09-30 15013.08
10-01 5081.54
10-02 4510.0
10-03 5133.85
10-04 4961.54
10-05 6860.0
10-06 7190.0
10-07 6350.0
10-08 5378.57
10-09 4699.29
10-10 4370.77
10-11 4106.92
10-12 4220.77
10-13 4216.15
10-14 5336.15
10-15 5425.0
10-16 4908.46
10-17 5489.29
10-18 5246.43
10-19 4633.57
10-20 4289.29
10-21 4717.14
10-22 3976.15
10-23 3658.46
10-24 3430.0
10-25 3304.62
10-26 3571.54
10-27 3324.62
10-28 3585.0
10-29 3691.43
10-30 6830.71
10-31 13257.86
11-01 16009.29
11-02 10943.57
11-03 8772.14
11-04 8330.71
11-05 5866.15
11-06 6913.08
11-07 8136.54
11-08 7454.62
11-09 6397.31
11-10 6164.62
11-11 7916.54
11-12 7557.69
11-13 6678.46
11-14 7300.0
11-15 8635.71
11-16 8815.71
11-17 8599.23
11-18 8651.54
11-19 8635.38
11-20 8083.08
11-21 7460.71
11-22 7593.85
11-23 7497.86
11-24 9979.23
11-25 13511.54
11-26 10889.29
11-27 9817.14
11-28 8950.0
11-29 7938.57
11-30 7170.71
12-01 7266.43
12-02 7436.43
12-03 7890.71
12-04 7935.71
12-05 7741.43
12-06 7836.92
12-07 7102.14
12-08 8674.29
12-09 12126.43
12-10 14265.71
12-11 11542.31
12-12 9665.71
12-13 8549.29
12-14 7885.38
12-15 7739.23
12-16 10733.85
12-17 18250.0
12-18 19744.62
12-19 14623.85
12-20 12520.77
12-21 11085.83
12-22 10938.46
12-23 15183.08
12-24 17848.46
12-25 17866.92
12-26 19074.62
12-27 19111.67
12-28 15277.69
12-29 15433.64
12-30 16730.83
12-31 17320.0

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index