Lower Columbia River Temperature Report for May 2019  
Generated Sat Jun 1 06:18:17 2019

  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
May 1 50.0 50.4 51.2 0/24 50.3 50.6 51.1 0/24 52.4 52.9 53.3 0/24 52.5 52.8 53.1 0/24 53.0 53.2 53.5 0/24 53.2 53.3 53.5 0/24 53.5 53.6 53.8 0/24 53.6 53.8 54.0 0/24 53.6 53.9 54.3 0/24 53.6 54.3 55.1 0/24 48.0 48.5 49.2 0/24
May 2 50.0 50.4 50.8 0/24 50.3 50.6 50.7 0/24 52.2 52.3 52.4 0/24 52.3 52.4 52.5 0/24 52.7 52.9 53.3 0/24 52.8 53.0 53.3 0/24 53.3 53.4 53.5 0/24 53.4 53.5 53.6 0/24 53.4 53.6 53.9 0/24 53.7 54.1 55.0 0/24 47.8 48.5 49.2 0/24
May 3 50.1 50.5 51.0 0/24 50.5 50.7 50.9 0/24 52.2 52.4 52.9 0/24 52.3 52.5 52.9 0/24 52.5 52.9 53.1 0/24 52.8 52.9 53.0 0/24 53.1 53.3 53.6 0/24 53.2 53.4 53.7 0/24 53.2 53.5 53.9 0/24 53.3 54.0 54.9 0/24 48.3 48.8 49.3 0/24
May 4 50.5 50.9 51.5 0/24 50.9 51.1 51.4 0/24 52.3 52.5 52.7 0/24 52.3 52.6 52.8 0/24 52.9 53.1 53.3 0/24 53.0 53.2 53.3 0/24 53.0 53.3 53.7 0/24 53.1 53.5 53.9 0/24 53.1 53.6 54.0 0/24 53.5 54.1 55.1 0/24 48.5 49.1 49.7 0/24
May 5 50.9 51.3 51.9 0/24 51.2 51.7 52.1 0/24 52.3 52.6 53.2 0/24 52.4 52.8 53.2 0/24 53.2 53.4 53.6 0/24 53.3 53.5 53.6 0/24 53.4 53.8 54.3 0/24 53.5 54.0 54.5 0/24 53.5 54.0 54.8 0/24 53.7 54.5 55.7 0/24 49.3 49.8 50.5 0/24
May 6 51.0 52.0 52.4 0/24 51.3 52.2 52.7 0/24 52.6 52.8 53.4 0/24 52.9 53.3 53.9 0/24 53.4 53.6 53.8 0/24 53.5 53.7 54.0 0/24 53.9 54.2 54.7 0/24 54.0 54.4 54.9 0/24 54.0 54.5 55.1 0/24 54.3 55.1 56.2 0/24 49.8 50.3 50.8 0/24
May 7 52.0 52.4 52.8 0/24 52.4 52.7 53.0 0/24 53.1 53.5 53.9 0/24 53.4 53.7 54.0 0/24 53.7 54.0 54.3 0/24 53.8 54.0 54.3 0/24 54.2 54.5 54.9 0/24 54.3 54.6 55.1 0/24 54.4 54.8 55.3 0/24 54.7 55.5 56.6 0/24 50.3 50.7 51.1 0/24
May 8 52.4 52.9 53.3 0/24 52.6 53.0 53.3 0/24 53.2 53.7 54.8 0/24 53.5 54.1 54.9 0/24 54.1 54.3 54.5 0/24 54.2 54.4 54.6 0/24 54.4 54.7 55.1 0/24 54.6 54.9 55.3 0/24 54.6 55.0 55.5 0/24 55.0 55.6 56.7 0/24 50.8 51.1 51.4 0/24
May 9 52.9 53.3 53.8 0/24 53.0 53.4 53.6 0/24 54.0 54.8 56.1 0/24 54.4 54.9 55.8 0/24 54.4 54.6 55.0 0/24 54.4 54.7 55.0 0/24 54.8 55.1 55.7 0/24 54.9 55.3 55.8 0/24 54.9 55.4 55.9 0/24 55.2 56.0 57.0 0/24 50.8 51.3 51.9 0/24
May 10 53.5 53.5 53.9 0/24 53.5 53.8 54.1 0/24 54.3 54.6 55.0 0/24 54.4 54.6 54.9 0/24 54.9 55.1 55.3 0/24 55.0 55.2 55.4 0/24 54.9 55.2 55.6 0/24 55.0 55.4 55.7 0/24 55.1 55.5 55.9 0/24 55.5 56.2 57.2 0/24 51.2 51.8 52.4 0/24
May 11 53.5 53.9 54.5 0/24 53.9 54.1 54.6 0/24 54.6 54.9 55.1 0/24 54.7 54.9 55.1 0/24 55.0 55.3 55.8 0/24 55.2 55.4 55.6 0/24 55.4 55.7 56.1 0/24 55.5 55.9 56.3 0/24 55.5 56.0 56.6 0/24 55.6 56.4 57.4 0/24 51.9 52.5 53.2 0/24
May 12 53.8 54.3 55.0 0/24 54.3 54.6 54.9 0/24 54.9 55.1 55.4 0/24 55.0 55.3 55.5 0/24 55.4 55.7 56.2 0/24 55.5 55.8 56.0 0/24 55.7 55.9 56.1 0/24 55.9 56.1 56.3 0/24 55.7 56.2 56.8 0/24 56.2 56.7 57.5 0/24 52.8 53.3 53.9 0/24
May 13 54.6 55.0 56.2 0/24 54.9 55.2 55.9 0/24 55.3 55.5 55.7 0/24 55.5 55.7 55.9 0/24 55.8 56.1 56.4 0/24 55.9 56.1 56.3 0/24 56.0 56.1 56.2 0/24 56.1 56.2 56.4 0/24 56.0 56.3 56.8 0/24 56.1 56.8 57.6 0/24 53.5 53.7 54.0 0/24
May 14 55.6 56.0 56.4 0/24 55.8 56.0 56.4 0/24 55.6 55.8 55.9 0/24 55.8 55.9 56.0 0/24 56.1 56.2 56.4 0/24 56.1 56.2 56.4 0/24 56.1 56.2 56.4 0/24 56.2 56.3 56.5 0/24 56.2 56.3 56.5 0/24 56.2 56.6 56.9 0/24 52.8 53.2 53.5 0/24
May 15 55.4 55.7 56.3 0/24 55.5 55.9 56.4 0/24 55.9 56.0 56.1 0/24 56.0 56.1 56.1 0/24 56.0 56.2 56.3 0/24 56.0 56.2 56.3 0/24 55.9 56.1 56.2 0/24 56.0 56.2 56.3 0/24 56.0 56.1 56.2 0/24 56.1 56.3 56.6 0/24 52.1 52.4 52.7 0/24
May 16 54.8 55.1 55.4 0/24 54.7 55.0 55.7 0/24 56.0 56.1 56.2 0/24 56.0 56.1 56.2 0/24 56.0 56.2 56.4 0/24 56.1 56.2 56.4 0/24 56.1 56.2 56.3 0/24 56.2 56.2 56.3 0/24 56.1 56.2 56.3 0/24 56.0 56.2 56.4 0/24 52.2 52.5 52.7 0/22
May 17 54.3 54.6 55.0 0/24 54.0 54.3 54.7 0/24 56.0 56.2 56.4 0/24 56.1 56.3 56.4 0/24 56.0 56.3 56.7 0/24 56.1 56.3 56.6 0/24 56.0 56.2 56.3 0/24 56.1 56.2 56.3 0/13 56.1 56.2 56.3 0/24 56.1 56.4 56.8 0/24 51.9 52.4 52.8 0/24
May 18 54.0 54.3 54.8 0/24 53.9 54.2 54.8 0/24 56.3 56.6 57.2 0/24 56.4 56.7 57.1 0/24 56.2 56.7 57.2 0/24 56.3 56.7 57.1 0/24 56.3 56.5 56.8 0/24 --- --- --- 0/0 56.2 56.5 56.7 0/24 56.1 56.6 57.3 0/24 52.1 52.8 53.7 0/24
May 19 54.3 54.6 55.1 0/24 53.9 54.3 54.9 0/24 56.1 56.6 57.1 0/24 56.2 56.6 56.9 0/24 56.7 56.9 57.2 0/24 56.8 56.9 57.1 0/24 56.6 56.9 57.2 0/24 --- --- --- 0/0 56.7 56.9 57.2 0/24 56.5 57.0 57.5 0/24 53.0 53.4 53.9 0/24
May 20 54.9 55.1 55.8 0/24 54.5 54.9 55.6 0/24 55.6 55.9 56.2 0/24 55.7 56.0 56.2 0/24 56.2 56.4 56.8 0/24 56.3 56.5 56.9 0/24 56.8 56.9 57.2 0/24 --- --- --- 0/0 56.8 57.0 57.2 0/24 57.0 57.2 57.5 0/24 52.6 53.2 53.7 0/24
May 21 54.8 55.1 55.4 0/24 54.6 54.8 55.0 0/24 55.6 55.7 55.9 0/24 55.7 55.8 56.0 0/24 55.8 56.1 56.5 0/24 56.0 56.1 56.5 0/24 56.4 56.5 56.7 0/24 56.4 56.5 56.5 0/13 56.5 56.6 56.8 0/24 56.7 57.0 57.4 0/24 52.4 52.7 53.2 0/24
May 22 54.3 54.5 55.0 0/24 54.0 54.3 54.7 0/24 55.4 55.6 55.9 0/24 55.5 55.7 55.8 0/24 55.9 56.0 56.1 0/24 55.9 56.0 56.2 0/24 56.2 56.4 56.5 0/24 56.3 56.4 56.5 0/24 56.4 56.5 56.8 0/24 56.5 57.0 57.7 0/24 52.5 53.0 53.5 0/24
May 23 54.0 54.4 55.1 0/24 53.8 54.3 54.8 0/24 55.7 56.0 56.5 0/24 55.7 56.0 56.4 0/24 55.7 56.1 56.8 0/24 55.8 56.1 56.6 0/24 56.3 56.5 56.8 0/24 56.4 56.6 56.9 0/24 56.4 56.7 57.2 0/24 56.6 57.1 57.9 0/24 53.2 53.9 54.7 0/24
May 24 54.6 54.9 55.2 0/24 54.5 54.6 54.7 0/24 56.0 56.1 56.3 0/24 56.1 56.2 56.3 0/24 56.5 56.7 56.9 0/24 56.6 56.7 56.8 0/24 56.4 56.6 56.7 0/24 56.5 56.6 56.8 0/24 56.5 56.7 56.9 0/24 56.8 57.0 57.4 0/24 54.0 54.5 54.7 0/24
May 25 54.7 55.0 55.3 0/24 54.6 54.7 55.0 0/24 55.9 56.1 56.3 0/24 56.1 56.2 56.3 0/24 56.2 56.5 56.9 0/24 56.2 56.5 56.8 0/24 56.5 56.6 56.8 0/24 56.5 56.7 56.8 0/24 56.4 56.6 56.8 0/24 56.4 56.6 56.8 0/24 53.4 54.3 55.1 0/24
May 26 54.6 55.0 55.4 0/24 54.7 54.9 55.0 0/24 56.1 56.3 56.7 0/24 56.2 56.4 56.7 0/24 56.3 56.6 56.9 0/24 56.4 56.6 56.8 0/24 56.5 56.6 56.8 0/24 56.5 56.7 56.8 0/24 56.5 56.8 57.1 0/24 56.5 57.2 58.4 0/24 54.6 54.8 55.1 0/24
May 27 55.0 55.6 56.7 0/24 54.8 55.3 56.1 0/24 56.3 56.4 56.6 0/24 56.4 56.5 56.7 0/24 56.8 57.0 57.1 0/24 56.9 57.0 57.1 0/24 56.7 57.0 57.2 0/24 56.7 57.0 57.3 0/24 56.7 57.0 57.4 0/24 56.8 57.2 57.7 0/24 54.5 55.1 55.7 0/24
May 28 55.7 56.1 56.6 0/24 55.6 56.0 56.7 0/24 56.2 56.4 56.7 0/24 56.3 56.5 56.8 0/24 56.8 57.1 57.5 0/24 56.9 57.1 57.3 0/24 57.2 57.3 57.4 0/24 57.2 57.4 57.4 0/24 57.2 57.4 57.5 0/24 57.3 57.5 57.9 0/24 55.7 56.3 57.0 0/24
May 29 56.3 56.7 57.7 0/24 56.2 56.5 57.5 0/24 56.7 57.1 57.4 0/24 56.9 57.2 57.5 0/24 57.1 57.5 58.1 0/24 57.1 57.4 57.9 0/24 57.4 57.6 57.8 0/24 57.4 57.7 57.8 0/24 57.4 57.7 58.1 0/24 57.4 58.1 59.2 0/24 56.4 57.0 57.5 0/24
May 30 57.0 57.5 58.2 0/24 57.1 57.5 58.0 0/24 57.2 57.3 57.5 0/24 57.3 57.4 57.7 0/24 57.8 58.1 58.4 0/24 57.9 58.1 58.3 0/24 57.8 58.0 58.4 0/24 57.8 58.1 58.5 0/24 57.8 58.2 58.5 0/24 57.8 58.6 59.6 0/24 56.8 57.1 57.4 0/24
May 31 57.4 58.0 58.8 0/24 57.4 58.0 58.7 0/24 57.4 57.8 58.3 0/24 57.5 57.9 58.3 0/24 57.8 58.3 58.8 0/24 57.9 58.2 58.6 0/24 58.5 58.8 59.1 0/20 58.5 58.8 59.1 0/24 58.4 58.9 59.2 0/24 58.4 59.1 60.2 0/24 56.7 57.2 57.7 0/24
>68.05 0 0 0 0/
744		 0 0 0 0/
744		 0 0 0 0/
744		 0 0 0 0/
744		 0 0 0 0/
744		 0 0 0 0/
744		 0 0 0 0/
740		 0 0 0 0/
650		 0 0 0 0/
744		 0 0 0 0/
744		 0 0 0 0/
742

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 >86

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

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