DART Adult Passage 4 Year Rolling Geometric Mean 50% Passage for Chinook at Bonneville, Date Range 1/1-12/31
Year Annual Count Data Points First (DOY) 5% (DOY) 10% (DOY) 50% (DOY) 90% (DOY) 95% (DOY) Last (DOY) 4 Year Rolling Geometric Mean
50% Passage (DOY)
2018 * 283799 260 01/02 (2) 05/04 (124) 05/07 (127) 07/13 (194) 09/11 (254) 09/13 (256) 09/17 (260) 08/20 (232)
2017 488981 364 02/11 (42) 05/09 (129) 05/21 (141) 09/06 (249) 09/25 (268) 10/02 (275) 12/24 (358) 09/04 (247)
2016 697987 365 01/01 (1) 05/01 (122) 05/04 (125) 08/28 (241) 09/18 (262) 09/25 (269) 12/26 (361) 09/04 (247)
2015 1337099 363 02/08 (39) 04/22 (112) 04/30 (120) 09/07 (250) 09/27 (270) 10/06 (279) 12/29 (363) 09/05 (248)
2014 1152642 365 01/01 (1) 04/29 (119) 05/05 (125) 09/07 (250) 09/23 (266) 09/30 (273) 12/26 (360) 09/04 (247)
2013 1129664 365 02/13 (44) 05/08 (128) 06/16 (167) 09/08 (251) 09/25 (268) 10/03 (276) 12/29 (363) 09/01 (244)
2012 589937 365 01/25 (25) 05/03 (124) 05/08 (129) 08/30 (243) 09/19 (263) 09/26 (270) 12/24 (359) 08/29 (241)
2011 677171 365 01/26 (26) 04/30 (120) 05/03 (123) 09/02 (245) 09/23 (266) 09/30 (273) 12/24 (358) 08/28 (240)
2010 809799 365 01/03 (3) 04/19 (109) 04/23 (113) 08/29 (241) 09/23 (266) 09/27 (270) 12/25 (359) 08/26 (238)
2009 480284 365 03/02 (61) 05/01 (121) 05/06 (126) 08/25 (237) 09/16 (259) 09/23 (266) 12/20 (354) 08/27 (239)
2008 518942 365 02/05 (36) 04/27 (118) 05/04 (125) 08/26 (239) 09/16 (260) 09/24 (268) 12/30 (365) 08/30 (242)
2007 275954 365 01/19 (19) 04/24 (114) 04/29 (119) 08/27 (239) 09/23 (266) 10/04 (277) 12/20 (354) 09/01 (244)
2006 493708 365 02/22 (53) 05/06 (126) 05/10 (130) 09/01 (244) 09/26 (269) 10/03 (276) 12/24 (358) 09/03 (246)
2005 570413 365 02/27 (58) 04/30 (120) 05/16 (136) 09/05 (248) 09/22 (265) 09/29 (272) 12/25 (359) 09/01 (244)
2004 846026 365 02/10 (41) 04/19 (110) 04/23 (114) 09/04 (248) 09/22 (266) 09/28 (272) 12/27 (362) 08/14 (226)
2003 921314 365 01/18 (18) 04/09 (99) 04/19 (109) 09/04 (247) 09/19 (262) 09/25 (268) 12/29 (363) 07/31 (212)
2002 870035 246 03/15 (74) 04/21 (111) 04/26 (116) 08/25 (237) 09/14 (257) 09/21 (264) 11/15 (319) 07/31 (212)
2001 867728 246 03/15 (74) 04/06 (96) 04/10 (100) 06/29 (180) 09/14 (257) 09/20 (263) 11/15 (319) 08/02 (214)
2000 401711 246 03/15 (75) 04/10 (101) 04/16 (107) 07/10 (192) 09/11 (255) 09/17 (261) 11/14 (319) 08/18 (230)
1999 306981 246 03/18 (77) 04/28 (118) 05/12 (132) 09/04 (247) 09/21 (264) 09/28 (271) 11/15 (319) 09/01 (244)
1998 248860 246 03/15 (74) 04/20 (110) 05/01 (121) 09/03 (246) 09/21 (264) 09/27 (270) 11/15 (319) 09/02 (245)
1997 360673 246 03/15 (74) 04/13 (103) 04/17 (107) 08/29 (241) 09/14 (257) 09/18 (261) 11/15 (319) 09/02 (245)
1996 272884 246 03/21 (81) 04/27 (118) 05/06 (127) 09/02 (246) 09/19 (263) 09/25 (269) 11/15 (320) 08/21 (233)
1995 189419 246 03/15 (74) 05/25 (145) 07/04 (185) 09/05 (248) 09/22 (265) 09/29 (272) 11/15 (319) 08/18 (230)
1994 208197 246 03/15 (74) 04/25 (115) 06/05 (156) 09/05 (248) 09/20 (263) 09/26 (269) 11/13 (317) 08/17 (229)
1993 259337 246 03/15 (74) 04/15 (105) 04/18 (108) 07/14 (195) 09/17 (260) 09/21 (264) 11/15 (319) 08/16 (228)
1992 219688 246 03/15 (75) 04/08 (99) 04/13 (104) 08/23 (236) 09/16 (260) 09/22 (266) 11/15 (320) 08/28 (240)
1991 226411 246 03/16 (75) 04/16 (106) 04/21 (111) 09/02 (245) 09/17 (260) 09/21 (264) 11/15 (319) 08/29 (241)
1990 296525 246 03/15 (74) 04/12 (102) 04/16 (106) 08/28 (240) 09/16 (259) 09/19 (262) 11/13 (317) 08/31 (243)
1989 373205 275 03/11 (70) 04/17 (107) 04/24 (114) 08/28 (240) 09/16 (259) 09/19 (262) 11/30 (334) 09/01 (244)
1988 411896 275 03/01 (61) 04/11 (102) 04/17 (108) 08/29 (242) 09/13 (257) 09/14 (258) 11/26 (331) 09/02 (245)
1987 468610 275 03/01 (60) 04/14 (104) 04/22 (112) 09/08 (251) 09/18 (261) 09/25 (268) 11/30 (334) 09/03 (246)
1986 370729 272 03/08 (67) 04/10 (100) 04/16 (106) 09/03 (246) 09/18 (261) 09/26 (269) 11/30 (334) 09/01 (244)
1985 296429 260 03/15 (74) 04/11 (101) 04/18 (108) 08/31 (243) 09/18 (261) 09/28 (271) 11/29 (333) 09/01 (244)
1984 216465 246 03/15 (75) 04/17 (108) 04/27 (118) 09/02 (246) 09/19 (263) 09/26 (270) 11/15 (320) 09/01 (244)
1983 185665 246 03/16 (75) 04/18 (108) 04/25 (115) 08/31 (243) 09/25 (268) 10/03 (276) 11/15 (319) 09/01 (244)
1982 247911 246 03/15 (74) 04/21 (111) 04/29 (119) 09/03 (246) 09/18 (261) 09/24 (267) 11/15 (319) 09/02 (245)
1981 232299 246 03/15 (74) 04/12 (102) 04/18 (108) 09/02 (245) 09/17 (260) 09/21 (264) 11/15 (319) 08/26 (238)
1980 207770 246 03/15 (75) 04/17 (108) 04/26 (117) 09/02 (246) 09/22 (266) 09/27 (271) 11/15 (320) 08/26 (238)
1979 276306 246 03/15 (74) 04/18 (108) 04/29 (119) 09/03 (246) 09/14 (257) 09/21 (264) 11/15 (319) 08/26 (238)
1978 394600 246 03/15 (74) 04/09 (99) 04/15 (105) 08/08 (220) 09/17 (260) 09/24 (267) 11/15 (319) 08/26 (238)
1977 366657 246 03/15 (74) 04/07 (97) 04/12 (102) 09/01 (244) 09/19 (262) 09/25 (268) 11/15 (319) 08/26 (238)
1976 507773 246 03/15 (75) 04/22 (113) 04/29 (120) 09/02 (246) 09/15 (259) 09/23 (267) 11/15 (320) 08/23 (235)
1975 425566 246 03/15 (74) 04/21 (111) 04/29 (119) 09/04 (247) 09/14 (257) 09/16 (259) 11/15 (319) 08/03 (215)
1974 366759 246 03/15 (74) 04/20 (110) 04/25 (115) 08/06 (218) 09/20 (263) 09/26 (269) 11/15 (319) 07/26 (207)
1973 398635 246 03/15 (74) 04/08 (98) 04/13 (103) 08/19 (231) 09/14 (257) 09/20 (263) 11/15 (319) 07/29 (210)
1972 394456 244 03/15 (75) 04/16 (107) 04/20 (111) 06/22 (174) 09/14 (258) 09/17 (261) 11/15 (320) 07/20 (201)
1971 405702 258 03/17 (76) 04/21 (111) 04/27 (117) 07/31 (212) 09/15 (258) 09/21 (264) 11/13 (317) 07/28 (209)
1970 384780 266 03/02 (61) 04/11 (101) 04/17 (107) 08/18 (230) 09/14 (257) 09/16 (259) 11/21 (325) 07/28 (209)
1969 507588 266 03/04 (63) 04/21 (111) 04/27 (117) 07/13 (194) 09/14 (257) 09/17 (260) 11/22 (326) 07/20 (201)
1968 341128 265 03/04 (64) 04/13 (104) 04/19 (110) 07/20 (202) 09/12 (256) 09/15 (259) 11/23 (328) 07/24 (205)
1967 366153 270 03/01 (60) 04/11 (101) 04/17 (107) 08/03 (215) 09/17 (260) 09/19 (262) 11/25 (329) 07/27 (208)
1966 340111 261 03/11 (70) 04/11 (101) 04/16 (106) 07/15 (196) 09/19 (262) 09/22 (265) 11/24 (328) 07/26 (207)
1965 317956 275 03/02 (61) 04/11 (101) 04/16 (106) 07/29 (210) 09/11 (254) 09/15 (258) 11/30 (334) 07/22 (203)
1964 344422 273 03/01 (61) 04/11 (102) 04/20 (111) 08/01 (214) 09/13 (257) 09/15 (259) 11/28 (333) 07/15 (196)
1963 278560 275 03/01 (60) 04/16 (106) 04/23 (113) 07/31 (212) 09/14 (257) 09/19 (262) 11/30 (334) 07/06 (187)
1962 286625 273 03/06 (65) 04/16 (106) 04/22 (112) 06/30 (181) 09/12 (255) 09/16 (259) 11/27 (331) 07/13 (194)
1961 281980 275 03/02 (61) 04/12 (102) 04/18 (108) 07/01 (182) 09/13 (256) 09/18 (261) 11/30 (334) 07/28 (209)
1960 256049 275 03/13 (73) 04/25 (116) 04/28 (119) 06/25 (177) 09/10 (254) 09/15 (259) 11/28 (333) 07/25 (206)
1959 345028 273 03/02 (61) 04/25 (115) 05/07 (127) 08/31 (243) 09/15 (258) 09/18 (261) 11/28 (332) 08/01 (213)
1958 416419 273 03/02 (61) 05/02 (122) 05/08 (128) 09/03 (246) 09/15 (258) 09/17 (260) 11/29 (333) 07/11 (192)
1957 403286 275 03/03 (62) 04/21 (111) 04/26 (116) 06/20 (171) 09/10 (253) 09/13 (256) 11/29 (333) 06/25 (176)
1956 300917 276 03/03 (63) 05/05 (126) 05/09 (130) 07/21 (203) 09/09 (253) 09/13 (257) 12/01 (336) 06/16 (167)
1955 359853 275 03/05 (64) 04/18 (108) 04/24 (114) 06/09 (160) 09/06 (249) 09/09 (252) 11/29 (333) 06/22 (173)
1954 320947 273 02/28 (59) 04/14 (104) 04/21 (111) 06/22 (173) 09/09 (252) 09/11 (254) 11/27 (331) 06/27 (178)
1953 332479 273 03/01 (60) 04/12 (102) 04/18 (108) 05/20 (140) 09/07 (250) 09/10 (253) 11/28 (332) 07/14 (195)
1952 420879 274 03/02 (62) 05/09 (130) 05/15 (136) 08/21 (234) 09/09 (253) 09/13 (257) 11/29 (334) 08/12 (224)
1951 331788 274 03/20 (79) 04/28 (118) 05/02 (122) 06/28 (179) 09/12 (255) 09/16 (259) 11/29 (333) 08/15 (227)
1950 357375 333 03/15 (74) 05/05 (125) 05/11 (131) 09/04 (247) 09/12 (255) 09/15 (258) 11/29 (333) 09/02 (245)
1949 277697 365 03/06 (65) 05/10 (130) 05/13 (133) 09/01 (244) 09/10 (253) 09/12 (255) 12/21 (355) 09/03 (246)
1948 420555 365 01/06 (6) 04/24 (115) 05/24 (145) 09/04 (248) 09/13 (257) 09/16 (260) 12/22 (357) 09/04 (247)
1947 480276 365 02/17 (48) 04/17 (107) 04/19 (109) 09/02 (245) 09/13 (256) 09/16 (259) 12/30 (364) 09/03 (246)
1946 446152 365 01/17 (17) 05/06 (126) 05/16 (136) 09/05 (248) 09/13 (256) 09/15 (258) 12/25 (359) 09/04 (247)
1945 297488 365 01/06 (6) 04/29 (119) 05/05 (125) 09/06 (249) 09/15 (258) 09/18 (261) 12/31 (365) 09/05 (248)
1944 240763 365 01/18 (18) 04/28 (119) 05/09 (130) 09/02 (246) 09/13 (257) 09/17 (261) 12/26 (361) 09/05 (248)
1943 313120 365 01/03 (3) 05/02 (122) 05/08 (128) 09/05 (248) 09/13 (256) 09/16 (259) 12/11 (345) 09/05 (248)
1942 401998 365 01/26 (26) 05/06 (126) 05/25 (145) 09/08 (251) 09/14 (257) 09/18 (261) 12/31 (365) 09/05 (248)
1941 461443 364 01/02 (2) 04/21 (111) 04/28 (118) 09/08 (251) 09/17 (260) 09/20 (263) 12/31 (365) 09/04 (247)
1940 391573 365 03/08 (68) 04/23 (114) 05/02 (123) 09/02 (246) 09/14 (258) 09/16 (260) 12/29 (364)  
1939 286156 365 01/04 (4) 04/19 (109) 04/23 (113) 09/02 (245) 09/12 (255) 09/16 (259) 12/30 (364)  
1938 272395 243 05/01 (121) 05/14 (134) 06/16 (167) 09/06 (249) 09/16 (259) 09/18 (261) 12/30 (364)  
* 2018 annual count and mean may be incomplete, contains current year data.

Query Notes

  1. Rolling 4 Year Geometric Mean is calculated using the date when 50% Passage occurs, within the date range, for the specified Year and the three previous years.
  2. Click 10% and 90% column titles to view the respective graphs for DART Adult Passage 4 Year Rolling Geometric Mean N% Passage for Chinook at Bonneville, Date Range 1/1-12/31.
Generated
18 Sep 2018 14:41:06 PDT. Columbia River DART (Data Access in Real Time) www.cbr.washington.edu/dart.