Lower Columbia River Temperature Report for September 2023  
Generated 2023-10-05 12:27:26

  McNary Dam forebay on Columbia R. (MCNA) McNary Dam tailwater on Columbia R. (MCPW) John Day Dam forebay (JDY) John Day Dam tailwater (JHAW) The Dalles Dam forebay on Columbia R. (TDA) The Dalles tailwater Downstream (TDDO) Bonneville Dam forebay (BON) Cascade Island (CCIW) Warrendale (WRNO) Camas / Washougal (CWMW) Pasco - Columbia Rivers (PAQW)
Date Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05
09 01 69.3 69.6 69.8 24/24 69.6 69.8 69.9 24/24 70.1 70.2 70.3 24/24 70.2 70.3 70.4 24/24 69.8 70.0 70.1 24/24 70.0 70.1 70.2 24/24 70.4 70.5 70.6 24/24 70.4 70.5 70.6 13/13 70.3 70.5 70.7 24/24 --- --- --- 0/0 67.0 67.4 67.8 0/24
09 02 69.2 69.4 69.7 24/24 69.5 69.6 69.8 24/24 70.2 70.2 70.4 24/24 70.1 70.3 70.4 24/24 69.8 70.0 70.3 24/24 70.0 70.2 70.4 24/24 70.0 70.2 70.5 24/24 --- --- --- 0/0 70.1 70.3 70.5 24/24 --- --- --- 0/0 67.7 68.2 68.8 12/24
09 03 68.9 69.1 69.2 24/24 69.0 69.4 69.6 24/24 69.9 70.0 70.2 24/24 69.9 70.0 70.2 24/24 70.0 70.2 70.3 24/24 70.1 70.3 70.4 24/24 69.8 69.9 70.1 24/24 --- --- --- 0/0 69.7 69.9 70.0 24/24 --- --- --- 0/0 68.6 69.0 69.6 24/24
09 04 68.8 68.9 69.0 24/24 68.9 69.0 69.2 24/24 69.7 69.8 69.9 24/24 69.6 69.8 69.9 24/24 69.3 69.7 70.1 24/24 69.5 69.8 70.1 24/24 69.1 69.5 69.8 24/24 --- --- --- 0/0 69.0 69.4 69.7 24/24 --- --- --- 0/0 69.0 69.3 69.7 24/24
09 05 68.5 68.7 68.8 24/24 68.7 68.9 69.1 24/24 69.4 69.5 69.7 24/24 69.4 69.5 69.6 24/24 68.6 68.9 69.2 24/24 68.8 69.2 69.4 24/24 68.6 68.8 69.0 24/24 --- --- --- 0/0 68.6 68.8 69.1 24/24 --- --- --- 0/0 67.9 68.4 68.8 18/24
09 06 68.6 68.7 68.9 24/24 68.7 68.9 69.2 24/24 69.2 69.3 69.4 24/24 69.1 69.3 69.5 24/24 68.4 68.6 68.8 24/24 68.4 68.6 68.8 24/24 68.4 68.5 68.6 24/24 --- --- --- 0/0 68.2 68.5 68.8 24/24 --- --- --- 0/0 67.8 68.1 68.4 15/24
09 07 68.8 68.8 68.9 24/24 68.9 69.1 69.4 24/24 69.1 69.2 69.2 24/24 69.0 69.2 69.4 24/24 68.6 68.8 69.1 24/24 68.6 68.8 69.1 24/24 68.3 68.4 68.5 24/24 --- --- --- 0/0 68.2 68.4 68.7 24/24 --- --- --- 0/0 67.9 68.2 68.5 17/24
09 08 68.7 68.8 69.0 24/24 68.8 69.1 69.4 24/24 68.9 69.0 69.1 24/24 68.9 69.0 69.2 24/24 68.7 68.9 69.2 24/24 68.6 68.9 69.3 24/24 68.3 68.4 68.6 24/24 --- --- --- 0/0 68.0 68.4 68.9 20/24 --- --- --- 0/0 67.8 68.1 68.5 5/10
09 09 68.8 69.0 69.7 24/24 69.0 69.3 69.6 24/24 69.0 69.2 70.0 24/24 68.9 69.1 69.4 24/24 68.8 68.9 69.0 24/24 68.8 69.0 69.3 24/24 68.3 68.4 68.5 24/24 --- --- --- 0/0 68.2 68.5 68.9 24/24 --- --- --- 0/0 --- --- --- 0/0
09 10 68.9 69.3 69.6 24/24 69.2 69.5 69.7 24/24 69.0 69.3 69.6 24/24 69.0 69.2 69.4 24/24 69.0 69.1 69.4 24/24 69.0 69.2 69.6 24/24 68.3 68.4 68.5 24/24 --- --- --- 0/0 68.1 68.4 68.7 24/24 --- --- --- 0/0 --- --- --- 0/0
09 11 69.1 69.2 69.7 11/11 69.3 69.5 69.7 24/24 68.9 69.0 69.1 24/24 68.9 69.0 69.2 24/24 68.9 69.1 69.3 24/24 69.0 69.2 69.4 24/24 68.5 68.6 68.6 24/24 --- --- --- 0/0 68.3 68.5 68.8 24/24 --- --- --- 0/0 --- --- --- 0/0
09 12 --- --- --- 0/0 69.0 69.3 69.5 24/24 69.0 69.1 69.1 24/24 68.9 69.1 69.2 24/24 68.8 69.0 69.2 24/24 68.8 69.1 69.3 24/24 68.4 68.5 68.6 24/24 --- --- --- 0/0 68.2 68.5 68.9 24/24 --- --- --- 0/0 --- --- --- 0/0
09 13 --- --- --- 0/0 69.3 69.4 69.6 24/24 69.0 69.1 69.2 24/24 69.0 69.2 69.4 24/24 68.6 68.7 68.8 24/24 68.7 68.9 69.1 24/24 68.4 68.5 68.6 24/24 --- --- --- 0/0 68.2 68.5 68.8 24/24 --- --- --- 0/0 --- --- --- 0/0
09 14 --- --- --- 0/0 69.3 69.5 69.7 24/24 69.1 69.2 69.6 24/24 69.1 69.2 69.4 24/24 68.6 68.9 69.2 24/24 68.6 68.9 69.3 24/24 68.5 68.6 68.7 24/24 --- --- --- 0/0 68.3 68.6 68.9 24/24 --- --- --- 0/0 --- --- --- 0/0
09 15 --- --- --- 0/0 69.3 69.6 69.8 24/24 69.1 69.5 70.1 24/24 69.1 69.3 69.6 24/24 69.1 69.2 69.3 24/24 69.0 69.3 69.6 24/24 68.3 68.5 68.7 24/24 --- --- --- 0/0 68.2 68.5 68.9 24/24 --- --- --- 0/0 --- --- --- 0/0
09 16 --- --- --- 0/0 69.4 69.6 69.9 24/24 69.3 69.6 69.8 24/24 69.2 69.4 69.7 24/24 69.2 69.3 69.6 24/24 69.3 69.4 69.8 24/24 68.6 68.7 68.8 24/24 --- --- --- 0/0 68.3 68.6 68.9 24/24 --- --- --- 0/0 --- --- --- 0/0
09 17 --- --- --- 0/0 69.3 69.6 69.8 24/24 69.1 69.2 69.5 24/24 69.0 69.2 69.3 24/24 69.1 69.3 69.6 24/24 69.1 69.3 69.4 24/24 68.4 68.6 68.8 24/24 --- --- --- 0/0 68.3 68.5 68.7 24/24 --- --- --- 0/0 --- --- --- 0/0
09 18 --- --- --- 0/0 69.2 69.4 69.6 24/24 69.0 69.1 69.1 18/18 68.9 69.0 69.2 24/24 68.4 68.8 69.0 24/24 68.7 69.0 69.2 24/24 67.9 68.2 68.3 23/24 --- --- --- 0/0 67.9 68.1 68.4 14/24 --- --- --- 0/0 --- --- --- 0/0
09 19 --- --- --- 0/0 69.1 69.3 69.5 24/24 --- --- --- 0/0 68.8 68.9 69.1 24/24 68.1 68.1 68.3 13/13 67.8 68.2 68.7 19/24 67.5 67.6 67.8 0/17 --- --- --- 0/0 67.3 67.5 67.8 0/24 --- --- --- 0/0 --- --- --- 0/0
09 20 --- --- --- 0/0 68.7 68.9 69.2 24/24 --- --- --- 0/0 68.6 68.7 68.9 24/24 --- --- --- 0/0 67.1 67.3 67.7 0/24 --- --- --- 0/0 --- --- --- 0/0 66.7 67.0 67.3 0/24 --- --- --- 0/0 --- --- --- 0/0
09 21 --- --- --- 0/0 68.2 68.4 68.7 24/24 --- --- --- 0/0 68.4 68.5 68.6 24/24 --- --- --- 0/0 66.8 66.9 67.1 0/24 --- --- --- 0/0 --- --- --- 0/0 66.3 66.5 66.8 0/24 --- --- --- 0/0 --- --- --- 0/0
09 22 --- --- --- 0/0 67.7 68.0 68.2 8/24 --- --- --- 0/0 68.2 68.3 68.5 24/24 --- --- --- 0/0 66.7 67.1 67.4 0/24 --- --- --- 0/0 --- --- --- 0/0 66.1 66.4 66.8 0/24 --- --- --- 0/0 --- --- --- 0/0
09 23 --- --- --- 0/0 67.3 67.5 67.7 0/24 --- --- --- 0/0 68.3 68.3 68.4 24/24 --- --- --- 0/0 67.0 67.2 67.3 0/24 --- --- --- 0/0 --- --- --- 0/0 66.0 66.2 66.3 0/24 --- --- --- 0/0 --- --- --- 0/0
09 24 --- --- --- 0/0 66.8 67.1 67.2 0/24 --- --- --- 0/0 68.1 68.1 68.2 24/24 --- --- --- 0/0 66.8 67.0 67.1 0/24 --- --- --- 0/0 --- --- --- 0/0 65.6 65.9 66.1 0/24 --- --- --- 0/0 --- --- --- 0/0
09 25 --- --- --- 0/0 66.3 66.6 66.8 0/24 --- --- --- 0/0 67.9 68.0 68.0 0/24 --- --- --- 0/0 66.8 67.0 67.0 0/24 --- --- --- 0/0 --- --- --- 0/0 65.1 65.3 65.6 0/24 --- --- --- 0/0 --- --- --- 0/0
09 26 --- --- --- 0/0 65.8 66.1 66.3 0/24 --- --- --- 0/0 67.8 67.9 68.0 0/24 --- --- --- 0/0 66.8 66.9 67.1 0/24 --- --- --- 0/0 --- --- --- 0/0 64.9 65.0 65.2 0/24 --- --- --- 0/0 --- --- --- 0/0
09 27 --- --- --- 0/0 65.2 65.6 65.8 0/24 --- --- --- 0/0 67.4 67.6 67.7 0/24 --- --- --- 0/0 66.7 66.8 67.0 0/24 --- --- --- 0/0 --- --- --- 0/0 65.0 65.2 65.3 0/24 --- --- --- 0/0 --- --- --- 0/0
09 28 --- --- --- 0/0 64.7 65.0 65.2 0/24 --- --- --- 0/0 67.1 67.3 67.4 0/24 --- --- --- 0/0 66.6 66.7 66.9 0/24 --- --- --- 0/0 --- --- --- 0/0 65.1 65.3 65.5 0/24 --- --- --- 0/0 --- --- --- 0/0
09 29 --- --- --- 0/0 64.5 64.6 64.7 0/24 --- --- --- 0/0 66.9 67.0 67.1 0/24 --- --- --- 0/0 66.1 66.4 66.6 0/24 --- --- --- 0/0 --- --- --- 0/0 65.1 65.2 65.2 0/24 --- --- --- 0/0 --- --- --- 0/0
09 30 --- --- --- 0/0 64.3 64.5 64.7 0/24 --- --- --- 0/0 66.6 66.8 66.9 0/24 --- --- --- 0/0 65.9 66.1 66.4 0/24 --- --- --- 0/0 --- --- --- 0/0 64.8 65.1 65.3 0/24 --- --- --- 0/0 --- --- --- 0/0
>68.05 11 11 11 251/
251		 21 21 22 512/
720		 18 18 18 426/
426		 24 24 24 576/
720		 19 19 19 445/
445		 18 19 19 451/
720		 17 18 18 431/
449		 1 1 1 13/
13		 16 18 18 418/
720		 0 0 0 0/
0		 2 7 7 115/
178

Temperature in Degrees Fahrenheit
<32 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 >86

Bold, red text denotes values above 68.05°F.
--- indicates No Data

NOTICE: This report is based on raw, unverified data.