Lower Columbia River Temperature Report for December 2020  
Generated Fri Jan 1 06:18:04 2021

  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
Dec 1 --- --- --- 0/0 48.1 48.2 48.3 0/24 --- --- --- 0/0 48.0 48.1 48.1 0/24 --- --- --- 0/0 47.8 47.9 48.0 0/24 --- --- --- 0/0 --- --- --- 0/0 47.0 47.6 47.9 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 2 --- --- --- 0/0 47.7 48.0 48.1 0/24 --- --- --- 0/0 47.8 47.9 48.0 0/24 --- --- --- 0/0 47.5 47.6 47.7 0/24 --- --- --- 0/0 --- --- --- 0/0 45.9 46.8 47.3 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 3 --- --- --- 0/0 47.4 47.5 47.7 0/24 --- --- --- 0/0 47.6 47.7 47.8 0/24 --- --- --- 0/0 47.2 47.3 47.5 0/24 --- --- --- 0/0 --- --- --- 0/0 46.0 46.4 46.6 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 4 --- --- --- 0/0 47.1 47.2 47.3 0/24 --- --- --- 0/0 47.3 47.5 47.6 0/24 --- --- --- 0/0 47.0 47.1 47.2 0/24 --- --- --- 0/0 --- --- --- 0/0 45.6 46.0 46.3 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 5 --- --- --- 0/0 46.7 46.9 47.0 0/24 --- --- --- 0/0 47.2 47.2 47.3 0/24 --- --- --- 0/0 46.7 46.9 47.0 0/24 --- --- --- 0/0 --- --- --- 0/0 44.8 45.2 45.6 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 6 --- --- --- 0/0 46.3 46.6 46.7 0/24 --- --- --- 0/0 47.0 47.1 47.2 0/24 --- --- --- 0/0 46.6 46.7 46.8 0/24 --- --- --- 0/0 --- --- --- 0/0 45.2 45.5 45.8 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 7 --- --- --- 0/0 46.0 46.1 46.3 0/24 --- --- --- 0/0 46.7 46.8 46.9 0/24 --- --- --- 0/0 46.6 46.7 46.8 0/24 --- --- --- 0/0 --- --- --- 0/0 45.5 45.8 46.0 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 8 --- --- --- 0/0 46.0 46.0 46.1 0/24 --- --- --- 0/0 46.4 46.5 46.7 0/24 --- --- --- 0/0 46.4 46.5 46.6 0/24 --- --- --- 0/0 --- --- --- 0/0 45.7 45.9 46.1 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 9 --- --- --- 0/0 45.8 46.0 46.1 0/24 --- --- --- 0/0 46.3 46.3 46.4 0/24 --- --- --- 0/0 46.3 46.4 46.5 0/24 --- --- --- 0/0 --- --- --- 0/0 46.1 46.3 46.4 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 10 --- --- --- 0/0 45.6 45.7 45.8 0/24 --- --- --- 0/0 46.0 46.1 46.2 0/24 --- --- --- 0/0 46.0 46.2 46.3 0/24 --- --- --- 0/0 --- --- --- 0/0 46.0 46.2 46.4 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 11 --- --- --- 0/0 45.4 45.4 45.6 0/24 --- --- --- 0/0 45.6 45.8 46.0 0/24 --- --- --- 0/0 45.8 45.9 46.0 0/24 --- --- --- 0/0 --- --- --- 0/0 45.8 46.0 46.1 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 12 --- --- --- 0/0 45.2 45.3 45.4 0/24 --- --- --- 0/0 45.2 45.5 45.6 0/24 --- --- --- 0/0 45.5 45.6 45.8 0/24 --- --- --- 0/0 --- --- --- 0/0 45.1 45.6 45.9 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 13 --- --- --- 0/0 44.8 45.0 45.2 0/24 --- --- --- 0/0 45.0 45.1 45.2 0/24 --- --- --- 0/0 45.1 45.3 45.5 0/24 --- --- --- 0/0 --- --- --- 0/0 44.9 45.0 45.4 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 14 --- --- --- 0/0 44.7 44.8 44.9 0/24 --- --- --- 0/0 44.9 45.0 45.0 0/24 --- --- --- 0/0 44.9 45.0 45.0 0/24 --- --- --- 0/0 --- --- --- 0/0 45.0 45.1 45.1 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 15 --- --- --- 0/0 44.8 44.9 45.0 0/24 --- --- --- 0/0 44.7 44.8 44.9 0/24 --- --- --- 0/0 44.8 44.9 44.9 0/24 --- --- --- 0/0 --- --- --- 0/0 45.0 45.1 45.2 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 16 --- --- --- 0/0 44.8 44.9 44.9 0/24 --- --- --- 0/0 44.7 44.7 44.7 0/24 --- --- --- 0/0 44.7 44.8 44.9 0/24 --- --- --- 0/0 --- --- --- 0/0 44.9 45.0 45.1 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 17 --- --- --- 0/0 44.7 44.8 45.0 0/24 --- --- --- 0/0 44.6 44.6 44.7 0/24 --- --- --- 0/0 44.7 44.7 44.8 0/24 --- --- --- 0/0 --- --- --- 0/0 44.9 44.9 45.0 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 18 --- --- --- 0/0 44.7 44.7 44.8 0/24 --- --- --- 0/0 44.5 44.6 44.6 0/24 --- --- --- 0/0 44.6 44.7 44.7 0/24 --- --- --- 0/0 --- --- --- 0/0 44.8 44.8 44.9 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 19 --- --- --- 0/0 44.6 44.7 44.8 0/24 --- --- --- 0/0 44.5 44.5 44.5 0/24 --- --- --- 0/0 44.6 44.7 44.7 0/24 --- --- --- 0/0 --- --- --- 0/0 44.9 45.0 45.1 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 20 --- --- --- 0/0 44.7 44.7 44.8 0/24 --- --- --- 0/0 44.5 44.5 44.5 0/24 --- --- --- 0/0 44.7 44.8 44.9 0/24 --- --- --- 0/0 --- --- --- 0/0 45.1 45.2 45.3 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 21 --- --- --- 0/0 44.6 44.6 44.7 0/24 --- --- --- 0/0 44.4 44.5 44.6 0/24 --- --- --- 0/0 44.8 44.9 44.9 0/24 --- --- --- 0/0 --- --- --- 0/0 45.1 45.2 45.5 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 22 --- --- --- 0/0 44.5 44.6 44.8 0/24 --- --- --- 0/0 44.3 44.4 44.4 0/24 --- --- --- 0/0 44.5 44.7 44.9 0/24 --- --- --- 0/0 --- --- --- 0/0 44.6 44.8 45.1 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 23 --- --- --- 0/0 44.7 44.7 44.8 0/24 --- --- --- 0/0 44.2 44.2 44.3 0/24 --- --- --- 0/0 44.0 44.2 44.5 0/24 --- --- --- 0/0 --- --- --- 0/0 44.0 44.3 44.6 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 24 --- --- --- 0/0 44.3 44.5 44.7 0/24 --- --- --- 0/0 44.1 44.1 44.2 0/24 --- --- --- 0/0 43.7 43.8 44.0 0/24 --- --- --- 0/0 --- --- --- 0/0 43.2 43.5 44.0 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 25 --- --- --- 0/0 43.7 44.1 44.3 0/24 --- --- --- 0/0 43.9 44.0 44.1 0/24 --- --- --- 0/0 43.4 43.6 43.7 0/24 --- --- --- 0/0 --- --- --- 0/0 42.5 42.9 43.3 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 26 --- --- --- 0/0 42.9 43.3 43.6 0/24 --- --- --- 0/0 43.8 43.8 43.9 0/24 --- --- --- 0/0 43.3 43.5 43.5 0/24 --- --- --- 0/0 --- --- --- 0/0 42.5 42.7 42.8 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 27 --- --- --- 0/0 42.3 42.6 42.8 0/24 --- --- --- 0/0 43.7 43.7 43.8 0/24 --- --- --- 0/0 43.4 43.5 43.6 0/24 --- --- --- 0/0 --- --- --- 0/0 42.4 42.8 42.9 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 28 --- --- --- 0/0 41.9 42.1 42.3 0/24 --- --- --- 0/0 43.5 43.6 43.7 0/24 --- --- --- 0/0 43.4 43.5 43.6 0/24 --- --- --- 0/0 --- --- --- 0/0 42.4 42.6 42.8 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 29 --- --- --- 0/0 41.7 41.8 41.9 0/24 --- --- --- 0/0 43.1 43.3 43.5 0/24 --- --- --- 0/0 43.3 43.4 43.5 0/24 --- --- --- 0/0 --- --- --- 0/0 42.5 42.6 42.8 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 30 --- --- --- 0/0 41.7 41.7 41.8 0/24 --- --- --- 0/0 42.9 43.0 43.1 0/24 --- --- --- 0/0 43.0 43.2 43.3 0/24 --- --- --- 0/0 --- --- --- 0/0 42.8 42.9 43.0 0/24 --- --- --- 0/0 --- --- --- 0/0
Dec 31 --- --- --- 0/0 41.8 41.8 42.0 0/24 --- --- --- 0/0 42.9 42.9 43.0 0/24 --- --- --- 0/0 42.9 43.0 43.0 0/24 --- --- --- 0/0 --- --- --- 0/0 42.9 43.1 43.3 0/24 --- --- --- 0/0 --- --- --- 0/0
>68.05 0 0 0 0/
0		 0 0 0 0/
744		 0 0 0 0/
0		 0 0 0 0/
744		 0 0 0 0/
0		 0 0 0 0/
744		 0 0 0 0/
0		 0 0 0 0/
0		 0 0 0 0/
744		 0 0 0 0/
0		 0 0 0 0/
0

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.