Lower Columbia River Temperature Report for May 2023  
Generated 2023-06-01 13:18:07

  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
05 01 37.9 45.8 52.5 0/24 51.9 52.3 52.5 0/24 51.6 52.1 52.8 0/24 51.9 52.2 52.4 0/24 52.0 52.2 52.3 0/24 51.7 52.0 52.2 0/24 52.5 52.6 52.7 0/24 52.7 52.7 52.8 0/24 52.5 52.7 52.8 0/24 --- --- --- 0/0 52.0 52.7 53.4 0/24
05 02 37.7 44.2 53.0 0/24 52.3 52.7 53.0 0/24 52.0 52.4 52.8 0/24 52.2 52.5 52.7 0/24 52.0 52.4 52.9 0/24 51.8 52.3 52.7 0/24 51.9 52.2 52.5 0/24 52.0 52.3 52.7 0/24 52.2 52.4 52.6 0/24 --- --- --- 0/0 51.1 51.5 52.5 0/24
05 03 52.6 53.0 53.4 0/24 52.8 53.0 53.4 0/24 52.9 53.2 53.7 0/24 52.8 53.2 53.5 0/24 52.8 53.2 53.9 0/24 52.8 53.2 53.7 0/18 52.2 52.7 53.2 0/23 52.3 53.0 53.3 0/18 52.3 52.9 53.3 0/18 --- --- --- 0/0 50.6 51.3 52.0 0/24
05 04 52.5 53.0 53.4 0/24 52.5 52.8 53.2 0/24 53.4 53.7 53.9 0/24 53.4 53.7 53.9 0/24 53.6 53.8 54.0 0/24 53.5 53.7 53.9 0/24 53.2 53.3 53.5 0/24 53.3 53.4 53.6 0/24 53.3 53.4 53.5 0/24 --- --- --- 0/0 51.5 51.8 52.3 0/24
05 05 52.7 53.0 53.2 0/24 52.6 52.8 53.0 0/24 53.7 53.8 53.9 0/24 53.7 53.8 53.9 0/24 53.7 53.8 54.0 0/24 53.5 53.7 54.0 0/24 53.3 53.4 53.5 0/24 53.4 53.5 53.6 0/24 53.3 53.5 53.5 0/24 --- --- --- 0/0 50.5 51.1 51.6 0/24
05 06 52.7 53.0 53.3 0/24 52.5 52.8 53.2 0/24 53.8 54.0 54.3 0/24 53.8 54.0 54.2 0/24 53.6 54.0 54.6 0/24 53.5 53.9 54.5 0/24 53.5 53.8 54.0 0/24 53.7 53.9 54.2 0/24 53.5 53.8 54.1 0/24 --- --- --- 0/0 50.1 50.7 51.5 0/24
05 07 52.8 53.1 53.4 0/24 52.6 52.9 53.2 0/24 53.8 54.1 54.2 0/24 53.8 54.1 54.2 0/24 53.9 54.2 54.6 0/24 53.9 54.2 54.5 0/24 53.9 54.1 54.4 0/24 54.0 54.2 54.6 0/24 54.0 54.2 54.5 0/24 --- --- --- 0/0 50.4 51.0 51.6 0/24
05 08 52.6 53.1 53.6 0/24 52.6 52.9 53.4 0/24 53.6 53.7 53.8 0/24 53.6 53.7 53.8 0/24 53.9 54.1 54.4 0/24 53.9 54.1 54.3 0/24 54.0 54.2 54.4 0/24 54.2 54.3 54.5 0/24 54.2 54.4 54.6 0/24 --- --- --- 0/0 50.8 51.2 51.5 0/24
05 09 52.8 53.1 53.5 0/24 52.7 52.9 53.2 0/24 53.8 54.0 54.3 0/24 53.8 54.0 54.3 0/24 53.6 54.1 54.6 0/24 53.6 54.0 54.4 0/24 54.0 54.2 54.5 0/24 54.1 54.4 54.6 0/24 54.2 54.4 54.6 0/24 --- --- --- 0/0 50.3 50.9 51.3 0/24
05 10 52.4 52.7 53.3 0/24 52.2 52.7 53.2 0/24 54.1 54.4 54.7 0/24 54.1 54.3 54.6 0/24 54.1 54.5 55.0 0/24 54.2 54.5 54.8 0/24 54.0 54.4 54.8 0/24 54.1 54.5 54.9 0/24 54.2 54.5 54.8 0/24 --- --- --- 0/0 49.9 50.7 51.4 0/24
05 11 52.2 52.5 53.0 0/24 52.3 52.6 53.1 0/24 54.6 54.7 55.3 0/24 54.5 54.7 55.0 0/24 54.3 54.9 55.4 0/24 54.4 54.8 55.2 0/24 54.6 54.9 55.2 0/23 54.7 55.0 55.3 0/24 54.8 55.0 55.3 0/24 --- --- --- 0/0 49.7 50.5 51.2 0/24
05 12 52.2 52.5 53.1 0/24 52.2 52.5 53.0 0/24 54.7 55.0 55.7 0/24 54.7 54.9 55.4 0/24 54.9 55.2 55.7 0/24 54.9 55.2 55.5 0/24 54.9 55.2 55.6 0/22 55.0 55.3 55.8 0/24 55.1 55.4 55.7 0/24 --- --- --- 0/0 50.3 51.0 51.8 0/24
05 13 52.5 53.0 53.8 0/24 52.3 52.9 53.6 0/24 54.9 55.2 55.7 0/24 54.9 55.1 55.5 0/24 55.2 55.6 56.0 0/24 55.2 55.5 55.9 0/24 55.4 55.7 56.0 0/21 55.6 55.8 56.1 0/24 55.7 55.9 56.3 0/24 --- --- --- 0/0 50.7 51.5 52.3 0/24
05 14 53.0 53.3 53.9 0/24 52.8 53.3 54.1 0/24 55.0 55.3 55.8 0/24 55.1 55.2 55.5 0/24 55.4 55.8 56.1 0/24 55.4 55.7 56.0 0/24 55.9 56.1 56.5 0/20 56.0 56.3 56.6 0/24 56.1 56.3 56.8 0/24 --- --- --- 0/0 51.4 52.1 52.8 0/24
05 15 53.6 53.9 54.5 0/24 53.5 53.8 54.3 0/24 55.1 55.3 55.5 0/24 55.2 55.2 55.3 0/24 55.6 55.9 56.2 0/24 55.5 55.8 56.1 0/24 56.1 56.3 56.5 0/22 56.2 56.4 56.6 0/12 56.4 56.6 56.8 0/24 --- --- --- 0/0 52.3 52.8 53.3 0/24
05 16 54.0 54.2 54.6 0/24 53.8 54.1 54.4 0/24 55.1 55.4 56.2 0/24 55.1 55.3 55.5 0/24 55.6 55.8 56.1 0/24 55.5 55.8 56.0 0/24 56.0 56.4 56.6 0/21 --- --- --- 0/0 56.3 56.6 56.8 0/24 --- --- --- 0/0 52.7 53.2 53.8 0/24
05 17 54.4 54.9 55.9 0/24 54.2 54.8 55.5 0/24 55.6 55.9 56.5 0/24 55.5 55.7 56.2 0/23 55.5 56.0 56.7 0/24 55.5 56.0 56.5 0/24 55.8 56.2 56.5 0/23 --- --- --- 0/0 56.0 56.4 56.8 0/24 --- --- --- 0/0 52.2 53.0 53.8 0/24
05 18 54.3 54.9 55.8 0/24 54.2 54.9 55.7 0/24 56.0 56.3 56.7 0/24 56.0 56.1 56.3 0/24 56.0 56.4 56.9 0/24 55.9 56.3 56.7 0/24 56.1 56.5 57.1 0/23 --- --- --- 0/0 56.2 56.7 57.3 0/24 --- --- --- 0/0 53.2 53.7 54.4 0/24
05 19 55.3 55.9 57.1 0/24 55.1 55.8 56.7 0/24 56.3 56.6 57.2 0/24 56.3 56.4 56.8 0/24 56.3 56.8 57.3 0/24 56.2 56.7 57.1 0/24 56.6 56.9 57.3 0/24 --- --- --- 0/0 56.7 57.1 57.6 0/24 --- --- --- 0/0 53.6 54.3 55.3 0/24
05 20 56.0 56.6 57.5 0/24 55.9 56.6 57.5 0/24 56.9 57.1 57.5 0/24 56.9 56.9 57.0 0/24 56.9 57.4 58.1 0/24 56.7 57.3 57.9 0/24 57.0 57.3 57.8 0/24 --- --- --- 0/0 57.2 57.6 58.1 0/24 --- --- --- 0/0 54.7 55.4 56.0 0/24
05 21 57.0 57.4 57.7 0/24 56.9 57.3 57.6 0/24 56.9 57.1 57.3 0/24 56.9 57.1 57.3 0/24 57.2 57.6 58.0 0/24 57.2 57.5 57.8 0/24 57.5 57.7 58.0 0/24 --- --- --- 0/0 57.6 57.9 58.1 0/24 --- --- --- 0/0 55.5 55.9 56.4 0/24
05 22 56.8 57.1 57.5 0/24 56.7 57.0 57.4 0/24 57.3 57.4 57.7 0/24 57.3 57.4 57.7 0/24 57.1 57.5 57.9 0/24 57.1 57.4 57.8 0/24 57.0 57.3 57.7 0/24 --- --- --- 0/0 57.2 57.4 58.0 0/24 --- --- --- 0/0 54.9 55.7 56.4 0/24
05 23 56.2 56.6 57.3 0/24 56.1 56.5 57.1 0/24 57.5 57.8 58.1 0/24 57.6 57.8 58.1 0/24 57.3 57.8 58.4 0/24 57.3 57.8 58.2 0/24 57.0 57.3 57.8 0/24 --- --- --- 0/0 57.1 57.4 57.9 0/24 --- --- --- 0/0 55.0 55.7 56.4 0/24
05 24 56.3 56.7 57.8 0/24 56.1 56.6 57.4 0/24 58.0 58.3 58.9 0/24 58.0 58.1 58.3 0/24 57.8 58.3 58.8 0/24 57.8 58.2 58.7 0/24 57.5 57.9 58.5 0/22 57.8 58.4 58.6 0/12 57.6 58.0 58.6 0/24 --- --- --- 0/0 55.5 56.1 56.8 0/24
05 25 56.7 57.2 57.7 0/24 56.6 57.3 58.1 0/24 58.3 58.6 59.3 0/24 58.3 58.4 58.5 0/24 58.2 58.7 59.2 0/24 58.2 58.6 59.1 0/24 58.2 58.6 59.1 0/24 58.3 58.7 59.2 0/24 58.4 58.8 59.2 0/24 --- --- --- 0/0 55.8 56.5 57.3 0/24
05 26 57.3 57.5 58.1 0/24 57.4 57.8 58.2 0/24 58.3 58.5 59.1 0/24 58.2 58.3 58.4 0/24 58.4 58.8 59.1 0/24 58.4 58.7 59.1 0/24 58.7 59.0 59.4 0/22 58.9 59.2 59.5 0/24 59.0 59.3 59.5 0/24 --- --- --- 0/0 56.2 56.8 57.7 0/24
05 27 57.8 58.1 58.5 0/24 58.1 58.4 58.9 0/24 58.1 58.2 58.5 0/24 58.1 58.2 58.4 0/24 58.5 58.8 59.1 0/24 58.5 58.7 59.0 0/24 58.8 59.0 59.3 0/18 58.9 59.2 59.5 0/24 59.2 59.3 59.5 0/24 --- --- --- 0/0 56.9 57.5 58.1 0/24
05 28 58.0 58.3 58.9 0/24 58.2 58.6 59.4 0/24 58.2 58.6 58.8 0/24 58.4 58.6 58.8 0/24 58.6 59.0 59.4 0/24 58.7 58.9 59.1 0/24 58.9 59.0 59.1 0/23 59.0 59.1 59.3 0/24 59.1 59.2 59.5 0/24 --- --- --- 0/0 57.3 57.8 58.5 0/24
05 29 58.7 59.0 59.4 0/24 58.9 59.2 59.6 0/24 58.7 59.0 59.3 0/24 58.8 59.0 59.2 0/24 59.0 59.4 59.9 0/24 59.0 59.3 59.6 0/24 59.0 59.2 59.3 0/24 59.1 59.3 59.5 0/24 59.0 59.4 59.7 0/24 --- --- --- 0/0 57.9 58.3 58.7 0/24
05 30 58.8 59.1 59.4 0/24 59.2 59.4 59.5 0/24 59.1 59.4 59.6 0/24 59.2 59.4 59.6 0/24 59.4 59.7 59.9 0/24 59.4 59.6 59.8 0/24 59.3 59.4 59.5 0/24 59.4 59.5 59.6 0/24 59.3 59.6 59.9 0/24 --- --- --- 0/0 58.2 58.5 59.0 0/24
05 31 58.9 59.1 59.4 0/24 59.2 59.3 59.4 0/24 59.6 59.8 60.0 0/24 59.6 59.8 60.0 0/24 59.3 59.6 59.8 0/24 59.4 59.5 59.7 0/24 59.1 59.2 59.3 0/22 59.2 59.4 59.4 0/24 59.2 59.4 59.6 0/24 --- --- --- 0/0 58.1 58.6 59.0 0/24
>68.05 0 0 0 0/
744		 0 0 0 0/
744		 0 0 0 0/
744		 0 0 0 0/
743		 0 0 0 0/
744		 0 0 0 0/
738		 0 0 0 0/
713		 0 0 0 0/
522		 0 0 0 0/
738		 0 0 0 0/
0		 0 0 0 0/
744

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.