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USGS Daily Statistics for Maryland

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The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 01658000 MATTAWOMAN CREEK NEAR POMONKEY, MD


Charles County, Maryland
Hydrologic Unit Code 02070011
Latitude  38°35'46.1", Longitude  77°03'21.7" NAD83
Drainage area 54.8  square miles
Gage datum 39.76 feet above NAVD88
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00060, Discharge, cubic feet per second,
Day of
month		 Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1949-10-01 -> 2023-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 87 59 113 97 77 53 11 10 24 23 38 49
2 102 75 113 95 57 37 10 9.1 42 26 44 38
3 90 81 107 102 52 49 20 16 22 18 40 40
4 76 90 95 98 62 62 21 39 14 12 31 43
5 72 100 96 84 71 57 27 51 16 9.9 40 57
6 72 88 107 87 65 46 30 21 24 13 51 63
7 73 109 121 98 68 40 38 13 31 17 53 70
8 72 118 117 93 71 38 44 12 50 13 47 84
9 71 101 102 87 69 27 51 7.7 35 16 42 85
10 76 77 88 73 55 33 26 7.3 35 18 33 87
11 84 105 82 64 47 45 15 14 48 22 30 88
12 80 118 100 66 79 43 22 36 42 71 75 93
13 72 99 129 98 67 36 26 172 55 28 103 76
14 76 100 112 122 54 32 26 71 24 56 75 73
15 97 104 101 129 48 24 22 39 14 42 45 89
16 80 103 95 133 67 16 17 29 12 21 58 109
17 67 107 112 92 76 17 9.4 29 9.2 15 96 104
18 70 100 102 63 54 41 8 29 15 16 53 79
19 63 121 107 58 73 49 6.6 34 32 17 34 58
20 59 127 117 70 65 32 5.3 20 25 18 40 49
21 57 108 147 77 66 45 11 15 10 21 43 77
22 56 116 163 70 49 133 23 21 12 15 52 93
23 62 139 141 75 47 66 38 25 25 17 53 80
24 75 134 133 74 40 33 38 23 37 14 53 76
25 88 126 113 71 37 25 17 28 20 27 59 80
26 79 111 99 69 52 60 7.9 31 13 39 53 98
27 68 107 98 69 55 47 13 23 13 55 54 89
28 62 107 88 72 39 32 13 45 17 61 42 76
29 59 70 99 74 35 22 18 50 29 60 35 78
30 55   94 76 40 15 18 35 24 92 46 81
31 52   93   44   14 14   57   77