Overview Realtime Historical Map View

Potomac River At Point Of Rocks, Md 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 13827.5
01-02 12799.17
01-03 11918.33
01-04 12550.83
01-05 11354.17
01-06 10580.83
01-07 10050.0
01-08 9038.18
01-09 8240.91
01-10 9102.5
01-11 12419.17
01-12 12330.0
01-13 11226.67
01-14 13176.67
01-15 13644.17
01-16 12276.67
01-17 11536.67
01-18 11578.18
01-19 11324.0
01-20 10205.45
01-21 10202.73
01-22 11532.73
01-23 9743.0
01-24 8020.0
01-25 8750.0
01-26 12166.0
01-27 14159.0
01-28 15522.22
01-29 14902.0
01-30 15643.64
01-31 14124.55
02-01 14904.55
02-02 16268.18
02-03 14062.5
02-04 14520.0
02-05 17560.0
02-06 15429.17
02-07 15846.15
02-08 16160.0
02-09 16239.23
02-10 14849.23
02-11 13043.85
02-12 11824.62
02-13 12133.85
02-14 13191.54
02-15 14353.08
02-16 14005.83
02-17 13596.36
02-18 16685.45
02-19 16216.15
02-20 15284.62
02-21 14713.85
02-22 15510.83
02-23 17417.69
02-24 18146.15
02-25 18820.0
02-26 20941.67
02-27 18923.57
02-28 16547.86
02-29 13290.0
03-01 14975.0
03-02 20129.29
03-03 20048.57
03-04 17476.43
03-05 16954.29
03-06 15835.0
03-07 15589.29
03-08 14710.71
03-09 13727.86
03-10 13470.0
03-11 16495.0
03-12 15848.57
03-13 15720.71
03-14 15550.71
03-15 14392.14
03-16 13403.57
03-17 12612.14
03-18 11558.57
03-19 10739.33
03-20 10404.29
03-21 10762.67
03-22 11904.29
03-23 13008.0
03-24 11670.67
03-25 10699.33
03-26 10460.71
03-27 10976.0
03-28 11062.67
03-29 10510.0
03-30 10717.33
03-31 11432.86
04-01 11300.67
04-02 11429.33
04-03 12686.67
04-04 15155.33
04-05 16323.33
04-06 13473.33
04-07 12043.33
04-08 12604.0
04-09 12756.0
04-10 12194.67
04-11 11116.67
04-12 10584.29
04-13 12287.86
04-14 11724.29
04-15 12155.38
04-16 12396.92
04-17 13763.85
04-18 16456.15
04-19 13637.69
04-20 11916.15
04-21 12544.29
04-22 14710.0
04-23 12602.86
04-24 10870.71
04-25 10010.0
04-26 9455.0
04-27 9700.0
04-28 10608.57
04-29 10897.86
04-30 10244.29
05-01 14220.0
05-02 18395.0
05-03 15545.71
05-04 13746.67
05-05 13293.33
05-06 16534.67
05-07 21270.67
05-08 21773.33
05-09 22999.33
05-10 21715.71
05-11 16634.67
05-12 14720.67
05-13 14059.33
05-14 14595.33
05-15 15208.57
05-16 16518.57
05-17 20770.71
05-18 24288.67
05-19 25044.0
05-20 26047.86
05-21 19771.33
05-22 14866.67
05-23 13100.0
05-24 14440.0
05-25 14946.0
05-26 13224.67
05-27 13271.33
05-28 12711.33
05-29 12867.33
05-30 14940.67
05-31 13268.67
06-01 12017.14
06-02 12112.67
06-03 11907.33
06-04 14696.67
06-05 19766.43
06-06 10685.0
06-07 10348.57
06-08 8500.0
06-09 7748.0
06-10 8128.0
06-11 8460.0
06-12 10328.57
06-13 11036.15
06-14 11065.38
06-15 8797.33
06-16 8010.67
06-17 7468.0
06-18 7175.33
06-19 7907.14
06-20 7823.57
06-21 7705.71
06-22 7844.29
06-23 8688.57
06-24 11825.71
06-25 9580.0
06-26 7782.14
06-27 6940.0
06-28 6533.57
06-29 7586.43
06-30 7607.86
07-01 6580.71
07-02 5787.86
07-03 5932.86
07-04 5604.29
07-05 5147.33
07-06 4867.33
07-07 4872.14
07-08 4860.71
07-09 5408.46
07-10 5222.14
07-11 4980.0
07-12 4536.67
07-13 4298.67
07-14 5384.29
07-15 5126.43
07-16 4912.86
07-17 4422.14
07-18 4696.43
07-19 4597.86
07-20 4520.71
07-21 4399.29
07-22 4985.71
07-23 4254.29
07-24 4456.43
07-25 4860.71
07-26 4824.29
07-27 4927.14
07-28 4372.86
07-29 4103.57
07-30 4331.43
07-31 4472.86
08-01 5375.38
08-02 4717.14
08-03 5644.62
08-04 5920.77
08-05 6572.86
08-06 5505.0
08-07 5031.43
08-08 4465.38
08-09 4550.0
08-10 4428.46
08-11 4070.71
08-12 4227.86
08-13 4378.46
08-14 3899.23
08-15 3879.29
08-16 3906.15
08-17 3745.38
08-18 4560.83
08-19 4370.77
08-20 4432.5
08-21 4056.67
08-22 4335.45
08-23 5038.46
08-24 4219.23
08-25 3791.54
08-26 3532.86
08-27 3490.71
08-28 3306.92
08-29 3164.62
08-30 2849.29
08-31 2816.43
09-01 2975.0
09-02 3760.0
09-03 8551.54
09-04 5626.92
09-05 4203.57
09-06 3732.14
09-07 3575.0
09-08 4089.29
09-09 5753.57
09-10 6626.15
09-11 14019.23
09-12 9831.43
09-13 6583.57
09-14 5926.43
09-15 5157.86
09-16 4466.43
09-17 4199.29
09-18 3992.14
09-19 6413.57
09-20 7110.0
09-21 5043.85
09-22 4703.33
09-23 3819.23
09-24 4780.0
09-25 6409.29
09-26 6107.86
09-27 8290.71
09-28 7102.86
09-29 11472.14
09-30 12499.23
10-01 4154.62
10-02 4618.46
10-03 4201.54
10-04 4780.77
10-05 6509.29
10-06 6127.86
10-07 5279.29
10-08 4560.0
10-09 4055.0
10-10 3880.71
10-11 3754.29
10-12 4094.29
10-13 4986.43
10-14 4990.0
10-15 4723.08
10-16 4567.86
10-17 4840.0
10-18 4472.86
10-19 3964.29
10-20 3987.86
10-21 3480.0
10-22 3313.57
10-23 3130.0
10-24 3058.57
10-25 2952.86
10-26 2865.0
10-27 2804.29
10-28 2894.29
10-29 3038.86
10-30 5455.0
10-31 11506.43
11-01 11005.0
11-02 7918.57
11-03 6957.36
11-04 6295.29
11-05 4890.77
11-06 5315.0
11-07 6010.77
11-08 5537.69
11-09 5183.08
11-10 5251.54
11-11 6813.85
11-12 5810.77
11-13 5378.46
11-14 7042.86
11-15 7785.71
11-16 6795.0
11-17 6755.38
11-18 7055.38
11-19 7293.85
11-20 6800.77
11-21 6334.29
11-22 6614.62
11-23 6379.29
11-24 8814.62
11-25 8943.85
11-26 8366.43
11-27 7677.14
11-28 6866.43
11-29 6379.29
11-30 5925.71
12-01 5995.71
12-02 6641.43
12-03 6820.71
12-04 6768.57
12-05 6830.71
12-06 6534.62
12-07 6048.57
12-08 7087.14
12-09 11800.71
12-10 11021.43
12-11 8839.29
12-12 7872.14
12-13 7425.71
12-14 6890.0
12-15 6460.77
12-16 7536.15
12-17 18816.67
12-18 15437.5
12-19 11040.77
12-20 10252.31
12-21 9055.0
12-22 9028.46
12-23 13936.15
12-24 14138.46
12-25 13276.92
12-26 15324.62
12-27 15110.83
12-28 11887.69
12-29 11437.27
12-30 13180.0
12-31 15301.67

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index