Lower Columbia River Temperature Report for April 2019  
Generated Wed May 1 06:18:10 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
Apr 1 44.7 45.2 45.8 0/24 44.8 45.1 45.4 0/24 44.7 45.1 45.9 0/24 44.8 45.0 45.3 0/24 44.9 45.1 45.4 0/24 44.7 45.1 45.3 0/24 45.0 45.2 45.4 0/24 45.1 45.3 45.5 0/24 45.0 45.3 45.6 0/24 45.0 45.6 46.4 0/24 44.3 44.7 45.1 0/24
Apr 2 45.4 45.7 46.0 0/24 45.4 45.6 45.8 0/24 45.1 45.4 46.3 0/24 45.0 45.2 45.4 0/24 45.2 45.5 45.7 0/24 45.2 45.4 45.8 0/24 45.4 45.5 45.5 0/24 45.5 45.6 45.7 0/24 45.5 45.6 45.9 0/24 45.6 45.9 46.2 0/24 44.7 45.2 45.9 0/24
Apr 3 45.8 46.0 46.1 0/24 45.7 46.1 46.5 0/24 45.2 45.3 45.7 0/24 45.2 45.4 45.6 0/24 45.6 45.8 46.1 0/24 45.5 45.7 46.1 0/24 45.4 45.6 45.8 0/24 45.7 45.8 46.0 0/24 45.6 45.7 46.1 0/24 45.8 46.2 46.8 0/24 45.4 46.0 46.9 0/24
Apr 4 46.0 46.3 46.6 0/24 46.1 46.5 46.9 0/24 45.2 45.5 46.2 0/24 45.4 45.7 45.9 0/24 45.8 46.1 46.5 0/24 45.8 46.1 46.5 0/24 45.7 46.0 46.4 0/24 45.9 46.1 46.5 0/24 45.8 46.0 46.4 0/24 45.8 46.3 47.0 0/24 45.6 45.9 46.3 0/24
Apr 5 46.5 47.1 47.6 0/24 46.8 47.2 47.5 0/24 45.9 46.5 48.0 0/24 45.8 46.1 46.5 0/24 46.2 46.4 46.7 0/24 46.2 46.4 46.6 0/24 46.3 46.3 46.4 0/24 46.5 46.5 46.7 0/24 46.3 46.4 46.6 0/24 46.3 46.7 47.2 0/24 45.4 45.8 46.4 0/24
Apr 6 47.2 47.4 47.5 0/24 47.3 47.4 47.6 0/24 46.2 46.5 46.9 0/24 46.2 46.5 47.0 0/24 46.5 46.6 46.8 0/24 46.2 46.5 46.7 0/24 46.3 46.4 46.5 0/24 46.5 46.6 46.7 0/24 46.3 46.5 46.6 0/24 46.3 46.7 47.2 0/24 45.4 45.9 46.6 0/24
Apr 7 47.0 47.2 47.6 0/24 47.4 47.5 47.6 0/24 46.4 46.5 46.7 0/24 46.6 46.7 46.8 0/24 46.8 47.0 47.1 0/24 46.6 46.9 47.0 0/24 46.4 46.5 46.6 0/24 46.6 46.7 46.8 0/24 46.4 46.5 46.6 0/24 46.6 46.7 46.8 0/24 45.8 46.1 46.7 0/24
Apr 8 47.0 47.2 47.7 0/24 47.3 47.4 47.5 0/24 46.7 46.9 47.2 0/24 46.9 47.1 47.4 0/24 47.0 47.2 47.3 0/24 46.9 47.0 47.1 0/24 46.6 46.7 46.9 0/24 46.8 46.8 47.0 0/24 46.6 46.7 46.8 0/24 46.6 46.8 47.1 0/24 45.7 45.9 46.3 0/24
Apr 9 47.2 47.4 47.5 0/24 47.4 47.5 47.7 0/24 47.1 47.4 47.7 0/24 47.4 47.6 47.9 0/24 47.3 47.5 47.8 0/24 47.1 47.3 47.5 0/24 46.8 46.9 47.1 0/24 47.0 47.1 47.3 0/24 46.8 46.9 47.1 0/24 46.8 47.0 47.5 0/24 45.4 45.8 46.1 0/24
Apr 10 46.9 47.2 47.4 0/24 47.2 47.4 47.5 0/24 47.8 47.9 48.1 0/24 47.9 48.1 48.3 0/24 47.7 47.9 48.3 0/24 47.3 47.7 48.1 0/24 47.1 47.3 47.6 0/24 47.2 47.5 47.8 0/24 47.1 47.3 47.6 0/24 47.1 47.2 47.4 0/24 45.4 46.1 46.9 0/24
Apr 11 47.4 47.8 48.5 0/24 47.5 47.9 48.5 0/24 48.1 48.1 48.2 0/24 48.2 48.2 48.3 0/24 48.0 48.2 48.5 0/24 47.9 48.2 48.4 0/24 47.6 48.0 48.3 0/24 47.8 48.1 48.5 0/24 47.6 47.9 48.3 0/24 47.5 47.8 48.1 0/24 46.1 46.5 47.3 0/24
Apr 12 48.4 48.5 49.4 0/24 48.5 48.7 49.0 0/24 48.1 48.2 48.4 0/24 48.2 48.3 48.5 0/24 48.1 48.5 48.8 0/24 48.0 48.4 48.7 0/24 48.3 48.5 48.7 0/24 48.5 48.7 48.9 0/24 48.3 48.6 48.8 0/24 48.1 48.6 49.2 0/24 46.4 46.7 47.2 0/24
Apr 13 48.5 49.1 49.5 0/24 48.8 49.2 49.4 0/24 48.2 48.2 48.3 0/24 48.3 48.4 48.5 0/24 48.3 48.5 48.8 0/24 48.3 48.4 48.7 0/24 48.5 48.6 48.8 0/24 48.7 48.8 49.0 0/24 48.5 48.7 48.8 0/24 48.8 48.8 48.9 0/24 46.3 46.6 46.9 0/24
Apr 14 48.1 48.4 48.5 0/24 48.2 48.5 48.7 0/24 48.1 48.2 48.3 0/24 48.3 48.4 48.4 0/24 48.3 48.4 48.5 0/24 48.1 48.3 48.4 0/24 48.3 48.5 48.7 0/24 48.5 48.7 48.8 0/24 48.5 48.6 48.8 0/24 48.5 48.7 48.9 0/24 45.2 45.9 46.6 0/24
Apr 15 47.6 48.1 50.2 0/24 47.8 48.1 48.4 0/24 48.2 48.5 49.2 0/24 48.4 48.7 49.1 0/24 48.3 48.5 48.7 0/24 48.1 48.4 48.6 0/24 48.2 48.4 48.5 0/24 48.4 48.5 48.7 0/24 48.2 48.4 48.6 0/24 48.5 48.7 49.0 0/24 45.2 45.8 46.2 0/24
Apr 16 47.3 47.5 48.0 0/24 47.6 47.8 48.4 0/24 48.9 49.1 49.3 0/24 48.8 49.1 49.3 0/24 48.8 49.0 49.4 0/24 48.7 49.0 49.3 0/24 48.4 48.6 48.9 0/24 48.6 48.8 49.1 0/24 48.4 48.7 49.1 0/24 48.5 48.9 49.3 0/24 46.2 46.9 48.0 0/24
Apr 17 47.4 47.7 47.9 0/24 47.6 47.9 48.2 0/24 49.0 49.1 49.3 0/24 49.2 49.3 49.5 0/24 49.4 49.7 50.0 0/24 49.3 49.7 50.0 0/24 48.8 49.2 49.8 0/24 49.0 49.4 50.0 0/24 48.9 49.2 49.8 0/24 48.9 49.4 50.2 0/24 46.7 47.2 47.9 0/24
Apr 18 47.7 48.0 48.9 0/24 47.9 48.4 49.0 0/24 49.3 49.6 49.9 0/24 49.5 49.8 50.0 0/24 50.0 50.2 50.5 0/24 49.9 50.1 50.4 0/24 49.7 50.0 50.6 0/24 49.8 50.2 50.8 0/24 49.7 50.1 50.7 0/24 49.5 50.2 51.2 0/24 47.2 47.7 48.4 0/24
Apr 19 48.2 48.7 49.0 0/24 48.9 49.1 49.4 0/24 49.7 49.9 50.1 0/24 50.0 50.2 50.4 0/24 50.5 50.8 51.0 0/24 50.4 50.8 51.0 0/24 50.5 50.8 51.1 0/24 50.6 50.9 51.3 0/24 50.6 50.9 51.2 0/24 50.5 51.1 51.8 0/24 47.7 48.1 48.6 0/24
Apr 20 49.2 49.6 49.8 0/24 49.2 49.6 50.0 0/24 50.1 50.4 51.4 0/24 50.3 50.7 51.3 0/24 50.9 51.1 51.4 0/24 50.9 51.1 51.3 0/24 50.9 51.3 51.7 0/24 51.1 51.4 51.9 0/24 51.0 51.3 51.7 0/24 51.1 51.4 52.0 0/24 48.1 48.5 49.2 0/24
Apr 21 49.6 50.1 50.4 0/24 49.8 50.3 50.8 0/24 50.4 50.5 50.6 0/24 50.7 50.7 50.9 0/24 51.0 51.3 51.5 0/24 51.0 51.2 51.3 0/24 51.3 51.5 51.8 0/24 51.4 51.7 51.9 0/24 51.4 51.7 52.1 0/24 51.5 51.9 52.7 0/24 48.3 49.0 49.7 0/24
Apr 22 50.3 50.9 51.3 0/24 50.7 51.0 51.2 0/24 50.5 50.6 50.8 0/24 50.8 50.8 51.0 0/24 51.0 51.4 51.7 0/24 51.1 51.3 51.5 0/24 51.4 51.5 51.7 0/24 51.5 51.7 51.8 0/24 51.4 51.7 51.9 0/24 51.6 52.0 52.4 0/24 48.7 49.5 50.6 0/24
Apr 23 51.2 51.5 51.9 0/24 51.1 51.6 51.8 0/24 50.5 50.8 51.1 0/24 50.8 51.0 51.2 0/24 51.4 51.7 51.9 0/24 51.4 51.6 51.8 0/24 51.5 51.7 51.8 0/24 51.7 51.9 52.0 0/24 51.6 51.8 51.9 0/24 51.8 52.0 52.3 0/24 49.1 49.5 50.2 0/24
Apr 24 51.5 51.8 52.3 0/24 51.6 52.0 52.6 0/24 50.9 51.3 51.9 0/24 51.1 51.5 52.0 0/24 51.4 51.8 52.3 0/24 51.4 51.7 52.1 0/24 51.8 52.0 52.0 0/24 52.0 52.1 52.2 0/24 51.7 52.0 52.3 0/24 51.6 52.3 53.2 0/24 48.4 48.9 49.4 0/24
Apr 25 51.2 51.9 52.5 0/24 51.6 52.1 52.6 0/24 51.9 52.2 52.7 0/24 52.0 52.3 52.7 0/24 51.9 52.2 52.8 0/24 51.7 52.1 52.6 0/24 51.7 52.0 52.3 0/24 51.9 52.2 52.5 0/24 52.0 52.1 52.4 0/24 51.9 52.5 53.1 0/24 48.0 48.4 48.9 0/24
Apr 26 51.3 51.6 52.1 0/24 51.4 51.8 52.1 0/24 52.5 52.7 52.9 0/24 52.6 52.8 53.0 0/24 52.4 52.8 53.3 0/24 52.4 52.7 53.1 0/24 52.1 52.4 52.7 0/24 52.3 52.6 52.9 0/24 52.3 52.5 52.8 0/24 52.1 52.8 53.7 0/24 48.1 48.7 49.6 0/24
Apr 27 51.2 51.6 52.1 0/24 51.4 51.6 52.1 0/24 52.8 53.0 53.1 0/24 53.0 53.1 53.2 0/24 52.8 53.1 53.3 0/24 52.8 53.0 53.2 0/24 52.6 52.7 52.8 0/24 52.7 52.8 53.0 0/24 52.5 52.8 52.9 0/24 52.5 52.9 53.6 0/24 48.4 48.8 49.1 0/24
Apr 28 50.5 51.1 51.7 0/24 50.8 51.3 51.8 0/24 52.8 53.1 53.7 0/24 52.9 53.2 53.5 0/24 52.9 53.2 53.5 0/24 52.9 53.2 53.4 0/24 52.6 52.9 53.2 0/24 52.8 53.0 53.3 0/24 52.6 52.9 53.3 0/24 52.2 53.0 54.0 0/24 47.5 48.2 49.0 0/24
Apr 29 50.2 50.8 51.4 0/24 50.7 50.9 51.5 0/24 53.1 53.3 53.7 0/24 53.1 53.3 53.5 0/24 53.1 53.3 53.5 0/24 53.2 53.4 53.5 0/24 53.2 53.3 53.5 0/24 53.3 53.5 53.7 0/24 53.1 53.4 53.8 0/24 52.8 53.6 54.5 0/24 47.5 48.1 48.6 0/24
Apr 30 50.3 50.8 51.3 0/24 50.7 50.9 51.1 0/24 52.8 53.0 53.4 0/24 52.9 53.1 53.3 0/24 53.1 53.3 53.5 0/24 53.3 53.4 53.5 0/24 53.5 53.7 53.9 0/24 53.7 53.8 54.0 0/24 53.5 53.9 54.3 0/24 53.3 54.1 55.1 0/24 47.8 48.3 48.9 0/24
>68.05 0 0 0 0/
720		 0 0 0 0/
720		 0 0 0 0/
720		 0 0 0 0/
720		 0 0 0 0/
720		 0 0 0 0/
720		 0 0 0 0/
720		 0 0 0 0/
720		 0 0 0 0/
720		 0 0 0 0/
720		 0 0 0 0/
720

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.