Low Water Records for Iowa River at Marshalltown
(1) 2.40 ft on 10/20/1974
(2) 2.65 ft on 12/04/1974
(3) 4.30 ft on 09/29/1976
(4) 6.28 ft on 10/03/1989
(5) 6.49 ft on 03/01/1989
(6) 6.93 ft on 12/04/1990
(7) 7.10 ft on 01/15/1981
(8) 7.13 ft on 02/08/1975
(9) 7.16 ft on 11/24/1975
(10) 7.19 ft on 08/27/1973
(11) 7.30 ft on 09/12/1978
(12) 7.30 ft on 08/15/1978
(13) 7.30 ft on 08/15/1977
(14) 7.37 ft on 01/18/1982
(15) 7.40 ft on 12/06/1980
(16) 7.40 ft on 12/07/1977
(17) 7.40 ft on 08/20/1984
(18) 7.56 ft on 08/20/1985
(19) 7.60 ft on 01/05/1980
(20) 7.70 ft on 08/25/1977
(21) 7.74 ft on 03/05/1976
(22) 7.79 ft on 11/10/1973
(23) 7.80 ft on 06/14/1978
(24) 7.85 ft on 04/26/1990
(25) 7.90 ft on 08/16/1983
(26) 7.90 ft on 12/03/1984
(27) 7.97 ft on 08/07/1987
(28) 7.97 ft on 10/21/1977
(29) 7.98 ft on 02/16/1973
(30) 8.00 ft on 08/24/1982
(31) 8.00 ft on 11/12/1978
(32) 8.00 ft on 03/12/1998
(33) 8.00 ft on 09/07/1977
(34) 8.01 ft on 10/18/1996
(35) 8.10 ft on 05/24/1980
(36) 8.10 ft on 10/18/1979
(37) 8.10 ft on 07/14/1981
(38) 8.11 ft on 07/07/1987
(39) 8.16 ft on 08/06/1974
(40) 8.20 ft on 09/23/1977
(41) 8.20 ft on 05/08/1980
(42) 8.20 ft on 06/23/1981
(43) 8.24 ft on 12/11/1986
(44) 8.27 ft on 09/11/1991
(45) 8.28 ft on 08/25/1997
(46) 8.28 ft on 11/15/1987
(47) 8.30 ft on 02/01/1978
(48) 8.31 ft on 03/10/1990
(49) 8.39 ft on 10/19/1982
(50) 8.39 ft on 02/03/1996
(51) 8.41 ft on 04/17/1978
(52) 8.43 ft on 02/27/1987
(53) 8.47 ft on 11/28/1995
(54) 8.47 ft on 09/22/1985
(55) 8.48 ft on 01/13/1998
(56) 8.50 ft on 02/25/1980
(57) 8.50 ft on 10/21/1991
(58) 8.52 ft on 12/17/1999
(59) 8.53 ft on 08/27/1995
(60) 8.53 ft on 10/03/2000
(61) 8.53 ft on 09/09/2006
(62) 8.56 ft on 03/24/1996
(63) 8.59 ft on 05/17/2000
(64) 8.59 ft on 03/20/2003
(65) 8.60 ft on 07/06/1978
(66) 8.60 ft on 03/29/1976
(67) 8.62 ft on 09/10/1986
(68) 8.62 ft on 04/13/1976
(69) 8.67 ft on 09/20/1994
(70) 8.68 ft on 07/29/1973
(71) 8.70 ft on 08/06/1991
(72) 8.70 ft on 03/09/1980
(73) 8.70 ft on 09/22/2005
(74) 8.73 ft on 07/24/1979
(75) 8.78 ft on 08/04/1982
(76) 8.78 ft on 04/05/1978
(77) 8.79 ft on 04/27/1996
(78) 8.80 ft on 05/21/2000
(79) 8.80 ft on 03/27/1980
(80) 8.81 ft on 03/24/1988
(81) 8.82 ft on 11/12/1985
(82) 8.82 ft on 10/26/2004
(83) 8.84 ft on 10/07/1992
(84) 8.85 ft on 03/10/1982
(85) 8.86 ft on 05/05/1978
(86) 8.87 ft on 08/08/2006
(87) 8.88 ft on 01/19/1975
(88) 8.88 ft on 09/05/2001
(89) 8.89 ft on 02/18/1980
(90) 8.90 ft on 08/25/1986
(91) 8.91 ft on 04/26/1988
(92) 8.93 ft on 11/13/2005
(93) 8.93 ft on 09/23/1998
(94) 8.93 ft on 10/09/2001
(95) 8.93 ft on 11/15/1996
(96) 8.94 ft on 12/17/1987
(97) 8.94 ft on 12/13/1997
(98) 8.94 ft on 08/11/1979
(99) 8.95 ft on 09/18/2002
(100) 8.96 ft on 01/21/2000
(101) 8.99 ft on 04/16/1976
(102) 8.99 ft on 11/20/2005
(103) 9.00 ft on 12/24/1984
(104) 9.01 ft on 06/10/1987
(105) 9.01 ft on 09/14/2004
(106) 9.03 ft on 11/17/1997
(107) 9.04 ft on 11/12/1996
(108) 9.04 ft on 04/22/1985
(109) 9.05 ft on 12/03/2000
(110) 9.05 ft on 12/08/1973
(111) 9.06 ft on 09/12/1992
(112) 9.06 ft on 01/11/2003
(113) 9.07 ft on 10/09/2003
(114) 9.09 ft on 04/11/2002
(115) 9.10 ft on 10/20/2005
(116) 9.11 ft on 11/28/2005
(117) 9.12 ft on 12/14/1973
(118) 9.13 ft on 09/05/2004
(119) 9.13 ft on 05/28/1975
(120) 9.15 ft on 05/17/1987
(121) 9.15 ft on 07/26/2002
(122) 9.17 ft on 10/01/2002
(123) 9.18 ft on 12/31/1987
(124) 9.20 ft on 05/03/1982
(125) 9.20 ft on 06/13/1980
(126) 9.20 ft on 01/16/1973
(127) 9.20 ft on 01/27/1983
(128) 9.20 ft on 12/31/1973
(129) 9.20 ft on 06/10/1976
(130) 9.20 ft on 05/12/1976
(131) 9.20 ft on 07/10/2006
(132) 9.20 ft on 12/31/1986
(133) 9.21 ft on 12/08/1987
(134) 9.21 ft on 03/23/1985
(135) 9.22 ft on 03/25/1974
(136) 9.23 ft on 08/16/2004
(137) 9.24 ft on 01/16/1987
(138) 9.24 ft on 01/14/1974
(139) 9.25 ft on 03/14/1987
(140) 9.25 ft on 09/28/2008
(141) 9.26 ft on 07/10/2002
(142) 9.27 ft on 09/11/2003
(143) 9.27 ft on 07/07/1992
(144) 9.28 ft on 02/01/2002
(145) 9.28 ft on 08/05/2000
(146) 9.29 ft on 12/17/2004
(147) 9.29 ft on 04/11/1982
(148) 9.30 ft on 12/19/1986
(149) 9.30 ft on 04/30/1975
(150) 9.30 ft on 10/10/1983
(151) 9.30 ft on 07/28/1983
(152) 9.30 ft on 06/30/1979
(153) 9.30 ft on 10/28/1982
(154) 9.30 ft on 11/07/1982
(155) 9.31 ft on 12/27/2002
(156) 9.31 ft on 10/06/2008
(157) 9.31 ft on 10/17/1985
(158) 9.32 ft on 07/19/1987
(159) 9.32 ft on 12/19/1987
(160) 9.32 ft on 07/16/1996
(161) 9.32 ft on 02/11/1974
(162) 9.32 ft on 12/03/2003
(163) 9.33 ft on 12/19/2004
(164) 9.34 ft on 08/04/2007
(165) 9.34 ft on 06/05/1994
(166) 9.34 ft on 02/17/2002
(167) 9.34 ft on 11/29/2002
(168) 9.35 ft on 12/20/2001
(169) 9.35 ft on 04/11/1994
(170) 9.35 ft on 09/18/2003
(171) 9.36 ft on 08/10/2005
(172) 9.37 ft on 12/17/2003
(173) 9.38 ft on 01/04/2004
(174) 9.39 ft on 12/02/1979
(175) 9.40 ft on 08/15/2007
(176) 9.40 ft on 10/09/2011
(177) 9.41 ft on 08/02/2004
(178) 9.41 ft on 07/28/1997
(179) 9.41 ft on 10/15/2006
(180) 9.42 ft on 11/26/1985
(181) 9.42 ft on 12/04/1973
(182) 9.42 ft on 03/23/2005
(183) 9.43 ft on 11/27/2003
(184) 9.43 ft on 08/19/1990
(185) 9.43 ft on 03/09/1995
(186) 9.44 ft on 10/10/1973
(187) 9.44 ft on 11/24/2003
(188) 9.44 ft on 04/12/1973
(189) 9.44 ft on 12/27/1986
(190) 9.45 ft on 01/12/2012
(191) 9.46 ft on 03/10/1998
(192) 9.46 ft on 03/07/2006
(193) 9.47 ft on 05/18/1990
(194) 9.47 ft on 05/07/1974
(195) 9.48 ft on 02/16/1991
(196) 9.48 ft on 09/15/1991
(197) 9.48 ft on 12/30/2003
(198) 9.49 ft on 12/01/2011
(199) 9.49 ft on 07/13/1979
(200) 9.49 ft on 01/16/2005
(201) 9.49 ft on 07/08/1979
(202) 9.49 ft on 01/08/1988
(203) 9.49 ft on 01/19/2004
(204) 9.50 ft on 07/06/1982
(205) 9.50 ft on 03/14/1980
(206) 9.50 ft on 08/20/1998
(207) 9.50 ft on 08/13/1986
(208) 9.51 ft on 09/11/2008
(209) 9.51 ft on 01/15/1986
(210) 9.51 ft on 12/04/2002
(211) 9.52 ft on 02/09/1998
(212) 9.53 ft on 07/10/1992
(213) 9.53 ft on 06/20/1997
(214) 9.54 ft on 02/26/2000
(215) 9.54 ft on 07/11/1974
(216) 9.54 ft on 11/07/2006
(217) 9.54 ft on 02/25/2012
(218) 9.54 ft on 02/01/1973
(219) 9.54 ft on 08/25/2003
(220) 9.55 ft on 11/26/2006
(221) 9.55 ft on 09/04/1987
(222) 9.56 ft on 06/17/1992
(223) 9.56 ft on 10/14/2008
(224) 9.56 ft on 03/05/2003
(225) 9.57 ft on 09/04/2008
(226) 9.57 ft on 08/03/1998
(227) 9.57 ft on 06/13/1990
(228) 9.57 ft on 12/10/2002
(229) 9.57 ft on 03/02/2002
(230) 9.58 ft on 11/06/2008
(231) 9.58 ft on 02/01/1987
(232) 9.58 ft on 11/20/1994
(233) 9.58 ft on 11/12/2006
(234) 9.59 ft on 12/07/2002
(235) 9.59 ft on 02/04/1998
(236) 9.59 ft on 02/22/2012
(237) 9.59 ft on 02/07/2004
(238) 9.59 ft on 12/08/2001
(239) 9.59 ft on 05/23/1994
(240) 9.59 ft on 03/10/2005
(241) 9.60 ft on 01/19/2002
(242) 9.60 ft on 01/20/1983
(243) 9.60 ft on 08/05/1979
(244) 9.60 ft on 11/10/2006
(245) 9.60 ft on 11/02/1983
(246) 9.60 ft on 01/15/2004
(247) 9.60 ft on 01/17/1983
(248) 9.60 ft on 11/20/1979