Country= Canada Station= Birchbank River= Columbia Area= 88100 km2 Lat= 49.18 Lon= -117.72 Source= RivDIS PointID= 1156 Area Units= km2 Discharge Units= m3/sec Starting Year= 1937 Ending Year= 1984 Total Years= 48 Total Usable Years= 47 Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Avg Annual 1937 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 886 1240 776 -9999 1938 612 489 498 1050 3260 6580 4950 2240 1660 1130 697 555 1976.75 1939 515 450 414 1000 3890 4470 4200 2530 1550 1070 1070 883 1836.83 1940 627 551 649 1220 3230 5020 3710 2330 1840 1360 968 602 1842.25 1941 513 491 612 1290 2800 3840 3060 2240 1850 1600 1150 1140 1715.5 1942 647 625 612 876 2630 5240 4820 2810 1370 1010 711 579 1827.5 1943 505 472 457 1560 2580 4490 5220 2840 1310 924 685 568 1800.92 1944 507 435 401 565 1960 3980 2590 2190 1490 1130 847 596 1390.92 1945 505 497 496 516 2140 5010 3840 2160 1290 799 665 514 1536 1946 473 473 626 1090 4420 7090 5040 2710 1610 892 592 554 2130.83 1947 511 604 740 1250 4410 6110 4570 2430 1440 1790 1190 684 2144.08 1948 604 549 573 835 3480 9020 4390 2800 1770 1150 824 631 2218.83 1949 508 449 480 1000 4200 4730 2830 2140 1370 858 729 764 1671.5 1950 545 567 772 879 2370 6510 6930 2990 1760 1260 1050 938 2214.25 1951 850 997 732 1150 4360 5420 5720 2790 1520 1380 842 678 2203.25 1952 599 562 612 1110 4030 5540 4510 2490 1310 1010 618 480 1905.92 1953 484 566 637 632 2860 5870 5050 2600 1650 1140 1030 815 1944.5 1954 639 563 737 771 3280 6850 7840 3950 2400 1280 1080 937 2527.25 1955 668 616 535 703 1710 6070 6850 3250 1530 1120 1120 742 2076.17 1956 684 542 639 1360 4290 8000 5100 2800 1420 1230 779 605 2287.42 1957 507 550 592 779 5350 6250 3500 2170 1270 1010 687 536 1933.42 1958 530 594 711 956 4030 6750 3710 2340 1510 1250 906 645 1994.33 1959 686 572 637 1030 3300 6970 6460 3230 2560 1880 1390 948 2471.92 1960 673 647 717 1710 2760 5440 5780 2950 1520 1200 1050 617 2088.67 1961 603 786 817 1090 3470 9340 4490 2640 1510 1100 824 583 2271.08 1962 512 625 614 1190 2750 5660 4740 3080 1540 1150 1070 884 1984.58 1963 707 780 804 1070 2650 6030 4610 3160 1710 1130 875 653 2014.92 1964 659 521 505 738 2440 6960 6250 3280 1580 1700 1110 725 2205.67 1965 630 650 730 1055 3130 6040 4810 3290 1540 1100 1075 720 2064.17 1966 634 592 682 1290 3430 6400 5300 2920 1600 1190 909 682 2135.75 1967 725 875 578 753 2420 8350 6680 3200 1820 1370 1010 1030 2400.92 1968 614 758 961 854 2640 6230 5340 2940 1840 1240 962 976 2112.92 1969 1050 977 978 1720 3780 5470 4080 2480 1500 1380 1640 1830 2240.42 1970 1620 711 698 678 2010 3080 2820 2360 1560 1280 1330 1320 1622.25 1971 1220 954 957 951 3850 5210 3940 3110 1420 1160 1460 1840 2172.67 1972 1590 994 1120 1280 3030 6510 4780 3480 1920 1590 1510 2100 2492 1973 1730 1230 674 1070 1570 2080 2970 2790 2080 1660 309 172 1527.92 1974 968 1120 1124 1036 2565 3370 3483 3115 2367 1869 1897 1976 2074.17 1975 2070 2140 1570 1490 1490 2070 1680 2190 1220 1180 1740 1820 1721.67 1976 2200 1960 1710 1310 2480 2280 3470 4390 2780 2060 1830 2140 2384.17 1977 2040 1520 1440 1520 2160 2300 2240 2090 1730 1150 1510 993 1724.42 1978 1240 1360 1410 1170 1950 1880 2340 2100 2300 1880 1730 2200 1796.67 1979 2810 1710 1270 1250 1840 1640 2010 2400 1640 1530 1550 2500 1845.83 1980 2114 1957 1494 1826 3572 3727 2935 2514 1704 1870 2165 3008 2407.17 1981 2860 2630 1450 924 2020 3310 3810 3530 1850 1460 1470 2040 2279.5 1982 2660 1780 2070 2290 2610 2690 3290 2980 1970 1530 1570 1780 2268.33 1983 2580 2440 2140 1780 2360 2470 2410 2770 1520 1270 1440 2300 2123.33 1984 2260 2450 1640 721 1830 1740 1950 2650 1490 1340 1190 2240 1791.75 Avg 1052.94 944.28 879.04 1114.64 2965.68 5108.23 4278.68 2775.3 1684.91 1303.08 1127 1110.4 2029.81 Std Dev 729.64 602.58 432.63 360.58 887.59 1962.63 1434.14 491.33 337.51 301.04 391.32 673.29 268.75