Mid and Upper-Columbia River Temperature Report for April 2020  
Generated Fri May 1 06:18:07 2020

  Chief Joseph Dam forebay (CHJ) Chief Joseph tailwater (CHQW)
Date Min Avg Max >68.05 Min Avg Max >68.05
Apr 1 40.6 40.8 41.0 0/24 40.7 40.9 41.3 0/10
Apr 2 40.5 40.7 41.1 0/24 40.5 40.8 41.2 0/24
Apr 3 40.3 40.5 40.8 0/24 40.5 40.7 41.1 0/24
Apr 4 40.4 40.6 40.8 0/24 40.5 40.7 41.0 0/24
Apr 5 40.5 40.7 41.2 0/24 40.6 40.8 41.3 0/24
Apr 6 40.6 40.8 41.1 0/24 40.7 40.9 41.2 0/24
Apr 7 40.8 41.1 41.6 0/24 40.8 41.1 41.6 0/24
Apr 8 41.1 41.4 41.9 0/24 41.0 41.3 42.0 0/24
Apr 9 41.3 41.7 42.3 0/24 41.2 41.5 42.0 0/24
Apr 10 41.7 42.1 42.6 0/24 41.5 41.7 42.0 0/24
Apr 11 41.8 42.1 42.5 0/24 41.6 42.0 42.4 0/24
Apr 12 41.7 42.0 42.4 0/24 41.8 42.1 42.6 0/24
Apr 13 41.8 42.1 42.4 0/24 41.8 42.0 42.2 0/24
Apr 14 42.0 42.2 42.5 0/24 41.8 42.0 42.5 0/24
Apr 15 41.7 42.0 42.2 0/24 41.8 42.0 42.4 0/24
Apr 16 41.6 41.9 42.2 0/24 41.7 42.8 64.4 0/24
Apr 17 41.8 42.1 42.4 0/24 41.7 41.8 42.1 0/24
Apr 18 42.1 42.6 43.4 0/24 41.8 42.2 42.9 0/24
Apr 19 43.0 43.3 43.6 0/24 42.4 42.7 43.1 0/24
Apr 20 43.3 43.4 43.7 0/24 42.8 43.1 43.3 0/24
Apr 21 43.7 43.9 44.1 0/24 43.1 43.5 43.9 0/24
Apr 22 43.6 43.7 43.8 0/24 43.3 43.4 43.5 0/24
Apr 23 43.5 43.8 44.3 0/24 43.3 43.6 43.9 0/24
Apr 24 43.4 43.8 44.3 0/24 43.3 43.4 43.8 0/24
Apr 25 43.3 43.6 43.7 0/24 43.2 43.5 44.2 0/24
Apr 26 43.6 44.0 44.3 0/24 43.4 43.8 44.1 0/24
Apr 27 43.8 44.0 44.1 0/24 43.7 43.9 44.3 0/24
Apr 28 44.0 44.2 44.4 0/24 43.9 44.1 44.3 0/24
Apr 29 44.0 44.2 44.6 0/24 43.9 44.2 44.4 0/23
Apr 30 43.7 43.9 44.3 0/24 43.7 44.0 44.4 0/24
>68.05 0 0 0 0/
720		 0 0 0 0/
705

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.