Lower Columbia River Temperature Report for April 2021  
Generated 2021-05-01 06:18:05

  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
04 01 --- --- --- 0/0 45.7 46.1 46.4 0/24 --- --- --- 0/0 45.9 46.0 46.2 0/24 --- --- --- 0/0 45.9 46.3 46.8 0/24 --- --- --- 0/0 46.3 46.5 46.8 0/24 46.1 46.6 47.5 0/24 --- --- --- 0/0 --- --- --- 0/0
04 02 --- --- --- 0/0 45.7 45.9 46.1 0/24 --- --- --- 0/0 46.0 46.1 46.3 0/24 --- --- --- 0/0 46.5 46.8 47.2 0/24 --- --- --- 0/0 46.5 46.8 47.0 0/24 46.5 46.8 47.8 0/24 --- --- --- 0/0 --- --- --- 0/0
04 03 --- --- --- 0/0 46.1 46.4 46.6 0/24 --- --- --- 0/0 46.2 46.4 46.7 0/24 --- --- --- 0/0 46.7 46.9 47.1 0/24 --- --- --- 0/0 46.9 47.1 47.4 0/24 46.7 47.2 47.8 0/24 --- --- --- 0/0 --- --- --- 0/0
04 04 --- --- --- 0/0 46.4 46.6 46.7 0/24 --- --- --- 0/0 46.5 46.6 46.7 0/24 --- --- --- 0/0 46.7 47.0 47.4 0/24 --- --- --- 0/0 47.3 47.5 47.7 0/24 47.3 47.5 47.9 0/24 --- --- --- 0/0 --- --- --- 0/0
04 05 --- --- --- 0/0 46.6 46.8 47.0 0/24 --- --- --- 0/0 46.6 46.7 46.9 0/24 --- --- --- 0/0 46.8 47.2 47.5 0/24 --- --- --- 0/0 47.4 47.6 47.8 0/24 47.3 47.7 48.3 0/24 --- --- --- 0/0 --- --- --- 0/0
04 06 --- --- --- 0/0 46.9 47.2 47.5 0/24 --- --- --- 0/0 46.6 46.8 47.1 0/24 --- --- --- 0/0 46.9 47.4 47.9 0/24 --- --- --- 0/0 47.4 47.7 47.8 0/24 47.4 47.8 48.4 0/24 --- --- --- 0/0 --- --- --- 0/0
04 07 --- --- --- 0/0 47.4 47.5 47.8 0/24 --- --- --- 0/0 46.9 47.0 47.2 0/24 --- --- --- 0/0 47.2 47.4 47.7 0/24 --- --- --- 0/0 47.6 47.7 47.8 0/24 47.6 47.7 47.8 0/24 --- --- --- 0/0 --- --- --- 0/0
04 08 --- --- --- 0/0 47.4 47.5 47.7 0/24 --- --- --- 0/0 47.1 47.4 47.7 0/24 --- --- --- 0/0 47.3 47.6 47.8 0/24 --- --- --- 0/0 47.5 47.6 47.7 0/24 47.5 47.6 47.8 0/24 --- --- --- 0/0 --- --- --- 0/0
04 09 --- --- --- 0/0 47.4 47.6 48.0 0/24 --- --- --- 0/0 47.6 47.8 47.9 0/24 --- --- --- 0/0 47.4 47.8 48.3 0/24 --- --- --- 0/0 47.5 47.7 47.9 0/24 47.2 47.8 48.4 0/24 --- --- --- 0/0 --- --- --- 0/0
04 10 --- --- --- 0/0 47.6 47.8 48.0 0/24 --- --- --- 0/0 47.7 47.8 48.0 0/24 --- --- --- 0/0 47.8 48.1 48.4 0/24 --- --- --- 0/0 47.8 47.9 48.1 0/24 47.9 47.9 48.0 0/24 --- --- --- 0/0 --- --- --- 0/0
04 11 --- --- --- 0/0 47.4 47.7 48.1 0/24 --- --- --- 0/0 47.8 48.0 48.5 0/24 --- --- --- 0/0 47.8 48.1 48.5 0/24 --- --- --- 0/0 47.5 47.8 48.3 0/24 47.3 48.0 49.0 0/24 --- --- --- 0/0 --- --- --- 0/0
04 12 --- --- --- 0/0 47.7 48.0 48.3 0/24 --- --- --- 0/0 48.1 48.4 49.0 0/24 --- --- --- 0/0 47.9 48.4 48.8 0/24 --- --- --- 0/0 47.9 48.2 48.6 0/24 47.6 48.3 49.2 0/24 --- --- --- 0/0 46.1 46.4 46.5 0/9
04 13 47.2 47.3 47.4 0/10 47.4 47.7 48.0 0/24 --- --- --- 0/0 48.1 48.4 48.9 0/24 --- --- --- 0/0 48.1 48.5 48.9 0/24 --- --- --- 0/0 48.3 48.6 48.8 0/24 48.1 48.6 49.5 0/24 --- --- --- 0/0 45.7 46.0 46.3 0/24
04 14 46.9 47.1 47.4 0/24 47.2 47.5 47.7 0/24 --- --- --- 0/0 48.3 48.6 48.9 0/24 --- --- --- 0/0 48.3 48.7 49.2 0/24 --- --- --- 0/0 48.5 48.9 49.4 0/24 48.5 49.0 50.3 0/24 --- --- --- 0/0 45.6 46.1 46.7 0/24
04 15 47.2 47.6 49.2 0/24 47.6 48.0 48.8 0/24 --- --- --- 0/0 48.5 48.9 49.3 0/24 --- --- --- 0/0 48.6 49.1 49.7 0/24 --- --- --- 0/0 49.1 49.4 49.9 0/24 49.1 49.7 51.4 0/24 --- --- --- 0/0 46.3 47.0 47.5 0/24
04 16 48.0 48.5 49.2 0/24 48.4 48.8 49.2 0/24 --- --- --- 0/0 49.1 49.4 50.1 0/24 --- --- --- 0/0 49.2 49.7 50.2 0/24 --- --- --- 0/0 49.5 49.9 50.3 0/24 49.7 50.1 51.0 0/24 --- --- --- 0/0 47.4 47.7 48.1 0/24
04 17 48.0 48.5 49.5 0/24 48.5 48.9 49.2 0/24 --- --- --- 0/0 49.3 49.6 49.8 0/24 --- --- --- 0/0 49.6 50.1 50.6 0/24 --- --- --- 0/0 49.9 50.2 50.6 0/24 49.9 50.5 51.4 0/24 --- --- --- 0/0 47.6 47.9 48.3 0/24
04 18 48.8 49.3 50.0 0/24 49.2 49.5 50.1 0/24 --- --- --- 0/0 49.3 49.6 50.0 0/24 --- --- --- 0/0 50.1 50.5 51.0 0/24 --- --- --- 0/0 50.3 50.7 51.3 0/24 50.2 50.9 51.6 0/24 --- --- --- 0/0 47.8 48.2 48.7 0/24
04 19 49.1 49.5 50.0 0/24 49.4 50.0 50.5 0/24 --- --- --- 0/0 49.4 50.1 50.9 0/24 --- --- --- 0/0 50.3 50.7 51.2 0/24 --- --- --- 0/0 50.9 51.2 51.5 0/24 51.1 51.4 52.4 0/24 --- --- --- 0/0 48.3 48.7 49.1 0/24
04 20 49.7 50.4 51.5 0/24 50.0 50.5 51.3 0/24 --- --- --- 0/0 50.1 50.6 51.0 0/24 --- --- --- 0/0 50.1 50.6 51.1 0/24 --- --- --- 0/0 51.1 51.4 51.7 0/24 51.0 51.5 52.4 0/24 --- --- --- 0/0 48.6 48.8 48.9 0/24
04 21 50.4 50.8 51.4 0/24 50.9 51.2 51.4 0/24 --- --- --- 0/0 50.2 50.5 50.8 0/24 --- --- --- 0/0 50.8 51.2 51.6 0/24 --- --- --- 0/0 51.3 51.6 52.0 0/24 51.3 51.8 52.3 0/24 --- --- --- 0/0 48.6 48.9 49.3 0/24
04 22 50.8 50.9 51.3 0/24 51.1 51.5 51.8 0/24 --- --- --- 0/0 50.4 50.6 50.8 0/24 --- --- --- 0/0 51.1 51.3 51.6 0/24 --- --- --- 0/0 51.2 51.5 52.0 0/24 51.4 51.7 51.9 0/24 --- --- --- 0/0 48.6 48.9 49.3 0/24
04 23 50.6 50.8 51.2 0/24 51.1 51.3 51.6 0/24 --- --- --- 0/0 50.8 51.0 51.3 0/24 --- --- --- 0/0 50.9 51.2 51.5 0/24 --- --- --- 0/0 51.4 51.7 52.1 0/24 51.3 51.8 52.4 0/24 --- --- --- 0/0 49.0 49.2 49.4 0/24
04 24 50.6 50.8 51.1 0/24 51.1 51.3 51.5 0/24 --- --- --- 0/0 51.2 51.6 51.9 0/24 --- --- --- 0/0 51.2 51.5 51.9 0/24 --- --- --- 0/0 51.6 51.8 52.0 0/24 51.8 51.9 52.1 0/24 --- --- --- 0/0 48.8 49.2 49.4 0/24
04 25 50.6 50.8 51.2 0/24 51.2 51.3 51.4 0/24 --- --- --- 0/0 51.7 51.9 52.1 0/24 --- --- --- 0/0 51.5 52.0 52.4 0/24 --- --- --- 0/0 51.4 51.7 52.0 0/24 51.4 51.8 52.4 0/24 --- --- --- 0/0 48.4 48.8 49.2 0/24
04 26 50.8 50.9 51.0 0/24 51.1 51.3 51.6 0/24 --- --- --- 0/0 52.0 52.3 52.5 0/24 --- --- --- 0/0 52.0 52.4 52.8 0/24 --- --- --- 0/0 51.9 52.1 52.3 0/24 51.8 52.1 52.6 0/24 --- --- --- 0/0 48.8 49.2 49.5 0/24
04 27 50.7 50.8 50.9 0/24 51.1 51.3 51.6 0/24 --- --- --- 0/0 52.4 52.6 52.8 0/24 --- --- --- 0/0 52.3 52.8 53.2 0/24 --- --- --- 0/0 52.2 52.6 53.1 0/24 52.1 52.7 53.7 0/24 --- --- --- 0/0 49.3 49.7 50.2 0/24
04 28 50.9 51.2 51.6 0/24 51.2 51.7 52.1 0/24 --- --- --- 0/0 52.8 53.1 53.3 0/24 --- --- --- 0/0 52.8 53.3 53.7 0/24 --- --- --- 0/0 52.9 53.1 53.3 0/24 52.8 53.2 53.6 0/24 --- --- --- 0/0 49.8 50.1 50.5 0/24
04 29 51.2 51.6 52.0 0/24 52.0 52.3 52.5 0/24 --- --- --- 0/0 53.3 53.5 53.7 0/24 --- --- --- 0/0 53.5 54.0 54.5 0/24 --- --- --- 0/0 53.2 53.6 54.0 0/24 53.1 53.6 54.3 0/24 --- --- --- 0/0 50.1 50.5 50.9 0/24
04 30 51.9 52.1 52.4 0/24 52.2 52.5 52.8 0/24 --- --- --- 0/0 53.4 53.7 54.0 0/24 --- --- --- 0/0 54.0 54.4 54.7 0/24 --- --- --- 0/0 53.9 54.2 54.4 0/24 53.8 54.2 55.0 0/24 --- --- --- 0/0 50.3 50.5 50.6 0/24
>68.05 0 0 0 0/
418		 0 0 0 0/
720		 0 0 0 0/
0		 0 0 0 0/
720		 0 0 0 0/
0		 0 0 0 0/
720		 0 0 0 0/
0		 0 0 0 0/
720		 0 0 0 0/
720		 0 0 0 0/
0		 0 0 0 0/
441

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.