"Potomac River at Point of Rocks, MD" Mid-Atlantic Basin May-September mean streamflow reconstruction Values in cubic feet per second (CFS) Recon = reconstruction Observed = observed flow record (see Reference or URLs below for details) Recon Interval: 950-2001 Observed Interval: 1895-2001 PI: S. Maxwell "Reference: Maxwell, R. S., A. E. Hessl, E. R. Cook, and N. Pederson. 2011. A multispecies tree ring reconstruction of Potomac River streamflow (950–2001). Water Resources Research, 47, W05512, doi:10.1029/2010WR010019. " URL: http://treeflow.info/midatl/potomac.html Notes: (1) Observed Interval above includes entirety of gage record. The gaged values prior to 1907 were not used for calibration or validation because of apparent perturbations from logging in the basin. (2) The published version of the reconstruction is in cubic meters per second (cms). Values were converted using the formula: 1 cms = 35.3147 CFS Calendar Year Recon Observed 950 7122.97 951 4884.02 952 6176.54 953 6307.21 954 7938.74 955 5208.92 956 3139.48 957 7324.27 958 6377.83 959 3552.66 960 6663.88 961 4322.52 962 2517.94 963 5353.71 964 4015.28 965 6928.74 966 6021.16 967 2772.20 968 6275.42 969 6466.12 970 4986.44 971 7511.44 972 6423.74 973 5283.08 974 5208.92 975 7190.07 976 4273.08 977 5067.66 978 3655.07 979 2690.98 980 3775.14 981 2567.38 982 2708.64 983 4569.72 984 4516.75 985 3655.07 986 4728.64 987 3386.68 988 6218.92 989 4032.94 990 4032.94 991 5159.48 992 3775.14 993 5148.88 994 7564.41 995 3775.14 996 6363.71 997 7073.53 998 2924.06 999 4082.38 1000 4816.93 1001 3174.79 1002 5569.13 1003 5530.28 1004 3577.38 1005 3905.81 1006 5343.11 1007 7444.34 1008 3111.23 1009 2193.04 1010 8765.11 1011 6423.74 1012 3111.23 1013 7288.95 1014 3432.59 1015 4569.72 1016 6423.74 1017 4453.18 1018 7274.83 1019 3835.18 1020 8726.26 1021 11318.36 1022 4333.11 1023 4294.27 1024 3538.53 1025 4537.94 1026 3941.12 1027 5113.57 1028 4138.88 1029 2924.06 1030 4686.26 1031 3997.62 1032 3361.96 1033 2867.55 1034 4043.53 1035 4827.52 1036 4527.34 1037 4100.04 1038 2634.48 1039 4156.54 1040 2758.08 1041 2447.31 1042 4495.56 1043 4463.78 1044 3464.37 1045 3704.51 1046 2772.20 1047 2722.76 1048 4283.67 1049 6261.30 1050 5491.44 1051 5184.20 1052 4997.03 1053 4213.04 1054 4749.83 1055 7529.09 1056 9810.42 1057 8705.07 1058 5367.83 1059 3835.18 1060 4612.10 1061 3958.78 1062 4905.21 1063 3722.17 1064 5244.23 1065 4961.72 1066 5466.72 1067 4915.81 1068 4516.75 1069 6190.67 1070 4361.37 1071 4223.64 1072 4548.53 1073 4707.45 1074 5343.11 1075 5593.85 1076 4590.91 1077 3662.13 1078 7793.95 1079 4537.94 1080 3941.12 1081 4940.53 1082 4195.39 1083 4244.83 1084 4174.20 1085 5897.55 1086 10273.05 1087 11502.00 1088 4862.83 1089 8408.43 1090 7635.04 1091 4371.96 1092 4506.16 1093 4806.33 1094 8447.28 1095 5053.53 1096 4262.48 1097 7793.95 1098 4283.67 1099 5417.27 1100 7257.17 1101 6190.67 1102 6805.14 1103 5749.23 1104 5632.69 1105 6833.39 1106 7158.29 1107 3969.37 1108 4223.64 1109 3379.62 1110 3496.16 1111 3686.85 1112 3174.79 1113 5968.18 1114 3090.04 1115 4350.77 1116 6335.46 1117 3817.52 1118 6882.84 1119 5184.20 1120 8351.93 1121 10417.84 1122 4251.89 1123 4633.29 1124 5858.71 1125 3104.16 1126 4622.69 1127 5198.32 1128 3425.53 1129 3506.75 1130 4184.79 1131 6709.79 1132 6512.03 1133 3655.07 1134 3595.04 1135 3739.83 1136 7274.83 1137 5392.55 1138 4601.51 1139 8683.88 1140 5968.18 1141 3354.90 1142 4156.54 1143 4495.56 1144 4343.71 1145 4643.88 1146 3167.73 1147 3662.13 1148 4862.83 1149 3979.97 1150 4484.97 1151 5872.83 1152 3125.35 1153 4117.69 1154 4089.44 1155 3570.32 1156 7221.86 1157 5480.84 1158 2969.97 1159 5593.85 1160 4739.23 1161 2881.68 1162 4195.39 1163 3637.41 1164 1899.93 1165 4749.83 1166 3474.97 1167 4424.93 1168 7882.24 1169 3019.41 1170 4082.38 1171 5530.28 1172 4718.04 1173 4905.21 1174 4795.74 1175 3905.81 1176 3425.53 1177 3835.18 1178 4082.38 1179 4612.10 1180 2818.11 1181 3474.97 1182 5505.56 1183 2722.76 1184 5367.83 1185 5858.71 1186 2376.68 1187 4707.45 1188 9743.33 1189 7864.58 1190 3411.40 1191 6134.16 1192 6077.66 1193 3287.80 1194 4612.10 1195 9199.48 1196 3782.20 1197 3457.31 1198 8012.91 1199 3577.38 1200 3842.24 1201 6586.19 1202 3951.71 1203 5968.18 1204 6632.10 1205 6049.41 1206 6632.10 1207 4100.04 1208 3340.77 1209 2246.01 1210 2351.96 1211 3852.83 1212 3852.83 1213 4749.83 1214 2426.12 1215 6293.08 1216 4785.14 1217 3587.97 1218 5710.39 1219 4054.13 1220 3979.97 1221 5219.51 1222 2482.62 1223 6063.53 1224 6091.79 1225 3987.03 1226 4414.34 1227 7257.17 1228 7274.83 1229 5685.67 1230 5763.36 1231 7476.12 1232 5530.28 1233 3372.55 1234 6603.85 1235 1885.80 1236 3686.85 1237 5569.13 1238 8563.81 1239 4622.69 1240 5738.64 1241 8065.88 1242 7306.61 1243 6335.46 1244 3669.20 1245 6896.96 1246 4414.34 1247 3877.55 1248 7635.04 1249 4301.33 1250 3739.83 1251 4371.96 1252 3061.78 1253 3679.79 1254 3104.16 1255 3203.04 1256 3054.72 1257 4082.38 1258 3203.04 1259 3450.25 1260 4848.71 1261 5569.13 1262 3316.05 1263 4929.93 1264 6928.74 1265 4516.75 1266 4997.03 1267 4403.74 1268 3934.06 1269 4043.53 1270 5078.25 1271 6928.74 1272 3577.38 1273 4138.88 1274 3097.10 1275 4665.07 1276 4905.21 1277 4643.88 1278 5710.39 1279 5858.71 1280 5911.68 1281 8546.16 1282 4929.93 1283 4167.13 1284 5353.71 1285 6727.45 1286 2147.13 1287 4424.93 1288 8217.73 1289 3482.03 1290 8104.72 1291 5328.99 1292 6787.49 1293 6293.08 1294 5078.25 1295 2510.88 1296 4739.23 1297 10181.23 1298 4873.43 1299 5992.90 1300 6755.70 1301 3361.96 1302 5184.20 1303 6709.79 1304 7564.41 1305 6349.58 1306 4484.97 1307 4054.13 1308 4905.21 1309 2998.22 1310 4643.88 1311 3146.54 1312 4665.07 1313 5353.71 1314 4195.39 1315 6335.46 1316 5491.44 1317 2341.36 1318 3068.85 1319 4463.78 1320 4301.33 1321 4061.19 1322 3662.13 1323 2902.87 1324 3386.68 1325 6773.36 1326 4548.53 1327 5777.48 1328 4771.02 1329 5844.58 1330 9114.72 1331 4004.69 1332 3997.62 1333 10756.86 1334 1723.36 1335 2818.11 1336 6423.74 1337 3432.59 1338 8906.37 1339 6819.27 1340 7426.68 1341 5657.41 1342 5138.29 1343 5328.99 1344 6293.08 1345 4961.72 1346 3450.25 1347 4643.88 1348 3612.69 1349 4393.15 1350 3181.85 1351 3602.10 1352 7391.37 1353 2948.78 1354 6391.96 1355 3806.92 1356 2779.27 1357 6437.87 1358 4156.54 1359 4301.33 1360 6787.49 1361 7239.51 1362 10273.05 1363 3241.89 1364 4643.88 1365 6247.17 1366 2532.06 1367 4739.23 1368 4311.92 1369 3612.69 1370 4806.33 1371 2426.12 1372 4082.38 1373 6946.40 1374 4884.02 1375 4431.99 1376 5219.51 1377 5293.67 1378 5088.85 1379 5593.85 1380 6603.85 1381 5173.60 1382 3888.15 1383 5480.84 1384 4915.81 1385 4580.32 1386 3987.03 1387 6176.54 1388 2765.14 1389 3782.20 1390 5657.41 1391 2563.85 1392 4311.92 1393 4665.07 1394 4184.79 1395 7670.35 1396 4654.48 1397 3210.11 1398 3870.49 1399 5007.62 1400 2023.53 1401 3464.37 1402 6377.83 1403 4343.71 1404 5710.39 1405 4806.33 1406 3457.31 1407 4718.04 1408 3097.10 1409 4643.88 1410 2828.71 1411 3496.16 1412 5067.66 1413 4739.23 1414 4749.83 1415 3531.47 1416 3746.89 1417 5982.31 1418 3188.92 1419 3817.52 1420 3280.74 1421 4643.88 1422 7059.41 1423 7974.06 1424 4537.94 1425 3256.02 1426 4082.38 1427 3432.59 1428 9220.67 1429 6833.39 1430 2556.78 1431 6035.28 1432 8030.56 1433 5466.72 1434 7974.06 1435 4343.71 1436 7239.51 1437 7546.75 1438 1882.27 1439 4986.44 1440 6437.87 1441 4145.95 1442 8012.91 1443 6805.14 1444 5293.67 1445 3210.11 1446 4873.43 1447 5328.99 1448 5173.60 1449 6572.07 1450 3513.81 1451 3210.11 1452 4213.04 1453 3075.91 1454 4403.74 1455 3764.55 1456 7059.41 1457 4848.71 1458 5078.25 1459 7938.74 1460 4749.83 1461 6543.81 1462 3577.38 1463 3686.85 1464 4463.78 1465 4371.96 1466 3799.86 1467 3619.76 1468 3789.27 1469 4806.33 1470 5208.92 1471 2482.62 1472 2500.28 1473 3210.11 1474 4718.04 1475 5925.81 1476 5544.41 1477 8087.07 1478 5258.36 1479 6247.17 1480 5544.41 1481 4997.03 1482 4894.62 1483 5749.23 1484 5343.11 1485 3545.60 1486 4612.10 1487 8065.88 1488 5244.23 1489 3905.81 1490 3125.35 1491 4905.21 1492 7670.35 1493 7652.70 1494 4322.52 1495 5555.00 1496 3227.76 1497 5607.97 1498 4622.69 1499 5872.83 1500 3729.23 1501 3697.45 1502 4195.39 1503 4089.44 1504 3019.41 1505 3354.90 1506 7864.58 1507 6233.04 1508 4128.29 1509 4760.42 1510 6727.45 1511 4442.59 1512 5304.27 1513 4654.48 1514 4929.93 1515 4707.45 1516 6978.18 1517 4940.53 1518 3969.37 1519 4760.42 1520 2842.83 1521 4463.78 1522 5318.39 1523 7391.37 1524 6914.62 1525 3612.69 1526 5403.15 1527 5283.08 1528 5283.08 1529 7274.83 1530 5053.53 1531 6077.66 1532 4873.43 1533 3704.51 1534 3372.55 1535 3852.83 1536 3644.48 1537 5042.94 1538 3644.48 1539 5555.00 1540 5982.31 1541 5392.55 1542 5505.56 1543 6233.04 1544 3139.48 1545 4205.98 1546 3400.81 1547 5618.57 1548 6063.53 1549 4760.42 1550 4827.52 1551 2821.64 1552 4128.29 1553 4795.74 1554 4940.53 1555 3347.83 1556 5555.00 1557 4580.32 1558 3669.20 1559 2864.02 1560 5173.60 1561 5763.36 1562 4506.16 1563 3506.75 1564 5911.68 1565 4205.98 1566 2606.22 1567 5343.11 1568 4322.52 1569 4251.89 1570 3496.16 1571 4251.89 1572 4424.93 1573 3775.14 1574 2747.48 1575 2772.20 1576 5268.95 1577 6134.16 1578 4806.33 1579 5392.55 1580 5791.61 1581 5618.57 1582 5593.85 1583 9655.04 1584 9008.78 1585 4061.19 1586 1193.64 1587 3125.35 1588 4145.95 1589 2962.90 1590 4167.13 1591 3026.47 1592 4167.13 1593 4453.18 1594 4718.04 1595 3570.32 1596 2415.53 1597 1967.03 1598 1864.62 1599 2567.38 1600 4333.11 1601 5343.11 1602 7793.95 1603 3630.35 1604 8623.85 1605 6120.04 1606 6423.74 1607 3118.29 1608 3923.46 1609 6423.74 1610 3489.09 1611 2482.62 1612 6805.14 1613 9545.56 1614 2895.81 1615 6851.05 1616 6162.42 1617 5159.48 1618 7324.27 1619 8235.39 1620 2556.78 1621 9902.24 1622 3400.81 1623 2821.64 1624 2867.55 1625 3987.03 1626 2327.24 1627 4393.15 1628 3174.79 1629 3859.90 1630 2690.98 1631 2934.65 1632 3280.74 1633 4311.92 1634 3697.45 1635 3531.47 1636 5491.44 1637 3799.86 1638 5184.20 1639 4848.71 1640 3577.38 1641 4054.13 1642 2309.58 1643 6049.41 1644 3160.67 1645 4749.83 1646 4580.32 1647 6120.04 1648 3859.90 1649 6437.87 1650 5442.00 1651 4361.37 1652 8726.26 1653 8803.95 1654 2864.02 1655 7511.44 1656 5219.51 1657 6896.96 1658 8291.89 1659 5042.94 1660 5844.58 1661 8765.11 1662 4145.95 1663 5607.97 1664 5442.00 1665 4382.55 1666 8235.39 1667 4382.55 1668 6787.49 1669 4816.93 1670 3153.60 1671 4718.04 1672 13924.59 1673 3474.97 1674 4929.93 1675 4915.81 1676 5343.11 1677 6773.36 1678 3450.25 1679 5579.72 1680 2779.27 1681 4665.07 1682 6409.62 1683 4516.75 1684 4195.39 1685 5699.79 1686 2348.43 1687 3474.97 1688 5233.64 1689 5618.57 1690 4975.84 1691 3587.97 1692 4110.63 1693 4686.26 1694 5032.34 1695 7257.17 1696 3552.66 1697 2140.07 1698 3220.70 1699 2740.42 1700 3181.85 1701 4760.42 1702 2726.29 1703 2683.92 1704 2835.77 1705 4393.15 1706 5318.39 1707 2955.84 1708 3916.40 1709 4403.74 1710 5480.84 1711 3806.92 1712 3877.55 1713 3090.04 1714 3132.41 1715 3979.97 1716 8087.07 1717 4915.81 1718 3923.46 1719 5148.88 1720 4474.37 1721 5671.54 1722 3775.14 1723 5304.27 1724 7829.27 1725 2998.22 1726 4244.83 1727 4110.63 1728 6695.67 1729 5632.69 1730 5671.54 1731 3669.20 1732 3203.04 1733 3513.81 1734 3090.04 1735 9347.80 1736 5805.74 1737 4333.11 1738 6709.79 1739 8683.88 1740 3817.52 1741 5208.92 1742 5021.75 1743 3817.52 1744 5858.71 1745 3443.18 1746 4929.93 1747 1861.08 1748 4785.14 1749 7091.19 1750 8765.11 1751 5872.83 1752 6349.58 1753 11187.70 1754 3859.90 1755 4986.44 1756 6190.67 1757 5304.27 1758 5982.31 1759 3587.97 1760 6176.54 1761 4665.07 1762 6190.67 1763 3987.03 1764 3577.38 1765 3704.51 1766 3916.40 1767 4174.20 1768 7493.78 1769 4453.18 1770 5982.31 1771 3764.55 1772 4516.75 1773 3160.67 1774 1543.25 1775 5925.81 1776 4234.23 1777 2977.03 1778 3167.73 1779 2101.22 1780 6452.00 1781 3637.41 1782 4643.88 1783 3090.04 1784 3859.90 1785 4905.21 1786 4771.02 1787 3757.48 1788 3951.71 1789 3686.85 1790 2659.20 1791 2348.43 1792 6437.87 1793 6678.01 1794 5138.29 1795 9609.13 1796 3316.05 1797 3248.95 1798 4633.29 1799 5088.85 1800 4827.52 1801 5007.62 1802 3531.47 1803 3482.03 1804 5897.55 1805 3033.53 1806 3082.97 1807 5738.64 1808 4707.45 1809 4244.83 1810 3474.97 1811 3898.74 1812 3090.04 1813 4361.37 1814 6497.90 1815 3905.81 1816 5452.59 1817 4424.93 1818 3227.76 1819 2927.59 1820 3181.85 1821 3457.31 1822 3496.16 1823 5897.55 1824 6543.81 1825 4633.29 1826 7341.93 1827 6709.79 1828 4827.52 1829 5318.39 1830 6120.04 1831 5102.97 1832 7108.85 1833 6649.76 1834 3934.06 1835 5208.92 1836 4580.32 1837 3905.81 1838 2094.16 1839 5392.55 1840 5685.67 1841 4138.88 1842 4195.39 1843 2828.71 1844 3400.81 1845 4054.13 1846 4234.23 1847 3686.85 1848 4032.94 1849 3941.12 1850 3612.69 1851 4032.94 1852 3496.16 1853 6233.04 1854 4251.89 1855 4463.78 1856 4484.97 1857 6275.42 1858 3722.17 1859 4371.96 1860 3068.85 1861 3782.20 1862 5544.41 1863 3047.66 1864 3474.97 1865 3496.16 1866 4361.37 1867 4156.54 1868 3711.57 1869 4696.86 1870 5403.15 1871 2606.22 1872 3782.20 1873 3443.18 1874 4403.74 1875 4961.72 1876 4795.74 1877 5830.46 1878 5466.72 1879 2521.47 1880 3997.62 1881 3877.55 1882 4301.33 1883 6437.87 1884 4633.29 1885 3612.69 1886 4403.74 1887 3400.81 1888 5872.83 1889 6805.14 1890 3711.57 1891 5124.16 1892 4350.77 1893 3443.18 1894 3227.76 1895 2722.76 3686.85 1896 5777.48 4269.55 1897 3898.74 5869.30 1898 4032.94 6314.27 1899 3457.31 3852.83 1900 3005.28 3107.69 1901 5699.79 12858.08 1902 5480.84 2927.59 1903 7324.27 7963.46 1904 4382.55 4389.62 1905 5219.51 5689.20 1906 6512.03 6434.34 1907 5053.53 8189.48 1908 4986.44 6321.33 1909 6077.66 3951.71 1910 2369.62 4884.02 1911 3082.97 4025.88 1912 5417.27 7214.79 1913 2864.02 5081.79 1914 3457.31 2899.34 1915 7511.44 6497.90 1916 8351.93 5819.86 1917 3241.89 3616.23 1918 3958.78 3768.08 1919 4816.93 5502.03 1920 4089.44 6307.21 1921 4590.91 5537.34 1922 5124.16 4011.75 1923 4527.34 2962.90 1924 5138.29 8556.75 1925 2666.26 2567.38 1926 4128.29 4785.14 1927 8122.38 4580.32 1928 5858.71 10357.80 1929 2941.71 3905.81 1930 2895.81 1387.87 1931 4951.12 5050.00 1932 3393.74 3022.94 1933 4283.67 7712.73 1934 6586.19 3217.17 1935 5954.06 5848.11 1936 3054.72 2991.16 1937 8846.33 6706.26 1938 9199.48 4654.48 1939 3824.58 4633.29 1940 5657.41 7698.60 1941 3655.07 3729.23 1942 6204.79 6822.80 1943 3789.27 4036.47 1944 3323.11 3291.33 1945 5816.33 6868.71 1946 3587.97 4940.53 1947 4061.19 4410.81 1948 6261.30 5487.90 1949 11795.11 9104.13 1950 9199.48 5763.36 1951 3655.07 5028.81 1952 5685.67 5805.74 1953 6335.46 3891.68 1954 4145.95 3203.04 1955 5318.39 7006.44 1956 5159.48 4746.30 1957 4244.83 2496.75 1958 4527.34 6007.03 1959 2803.99 3238.36 1960 6391.96 5713.92 1961 4195.39 4092.97 1962 3870.49 3068.85 1963 1610.35 2411.99 1964 3323.11 2556.78 1965 2500.28 2041.19 1966 2828.71 2581.50 1967 4251.89 5293.67 1968 3220.70 3796.33 1969 4205.98 3513.81 1970 3817.52 4601.51 1971 5939.93 6748.64 1972 7582.07 11297.17 1973 4453.18 6967.59 1974 6190.67 5042.94 1975 7846.93 9464.34 1976 2366.08 3178.32 1977 3570.32 1963.50 1978 7458.46 8002.31 1979 5304.27 8673.29 1980 3775.14 5035.88 1981 2941.71 4481.44 1982 5646.82 5247.76 1983 2284.86 4509.69 1984 3655.07 6656.82 1985 4251.89 4050.60 1986 2185.98 2659.20 1987 2556.78 4675.67 1988 4251.89 4347.24 1989 6335.46 9965.81 1990 8447.28 5194.79 1991 3612.69 2623.88 1992 7257.17 5883.43 1993 7027.63 3764.55 1994 6695.67 5374.90 1995 6261.30 5487.90 1996 2842.83 17826.86 1997 6805.14 3739.83 1998 3450.25 4968.78 1999 6543.81 2337.83 2000 8351.93 5607.97 2001 3612.69 4375.49