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    • USGS Daily Statistics for the Nation

    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 10113500 BLACKSMITH FORK AB UP and L CO.'S DAM NR HYRUM, UT


    Cache County, Utah
    Hydrologic Unit Code 16010203
    Latitude  41°37'26.42", Longitude 111°44'10.19" NAD83
    Drainage area 263  square miles
    Gage datum 5,020.52 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 1914-10-01 -> 2025-09-30)

    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 76 78 82 129 277 210 128 109 97 91 87 81
    2 76 76 83 135 283 207 127 109 97 91 86 81
    3 75 76 86 136 291 204 126 108 97 91 86 81
    4 76 76 85 137 306 199 124 108 96 91 86 81
    5 76 76 86 141 312 196 124 107 96 90 86 81
    6 76 75 86 147 310 193 123 107 96 90 86 80
    7 76 76 86 152 310 191 122 106 95 90 86 80
    8 76 76 88 158 307 187 121 106 95 90 86 80
    9 76 77 90 163 302 183 120 106 94 90 86 79
    10 76 79 91 166 298 178 120 105 94 90 85 79
    11 76 81 94 170 297 175 119 105 94 90 85 80
    12 76 80 95 179 291 170 119 104 93 90 85 80
    13 76 78 96 185 290 169 118 104 93 90 84 80
    14 77 79 97 197 298 163 117 103 93 89 84 79
    15 76 78 98 206 302 160 117 103 93 90 83 78
    16 76 78 99 214 302 157 116 102 93 89 83 78
    17 77 79 103 226 295 154 115 102 92 89 84 79
    18 77 84 105 238 292 151 115 102 92 89 84 78
    19 78 84 107 241 287 149 114 102 92 89 83 78
    20 77 82 108 240 282 146 114 102 92 89 83 78
    21 77 81 112 242 274 144 114 101 91 88 83 78
    22 76 82 115 250 269 142 113 100 91 88 82 78
    23 77 83 119 261 261 140 112 100 91 88 82 80
    24 77 83 117 265 257 138 112 99 92 88 82 81
    25 76 83 118 267 251 137 112 98 91 88 82 80
    26 76 82 119 270 244 135 111 98 92 87 82 78
    27 75 82 119 270 237 133 111 98 91 87 82 78
    28 75 81 121 278 231 132 110 98 91 87 81 78
    29 75 82 122 281 227 130 110 98 91 87 81 79
    30 76   123 277 223 128 110 97 91 87 81 78
    31 76   126   217   109 97   87   77