Mid and Upper-Columbia River Temperature Report for September 2020  
Generated Thu Oct 1 06:18:09 2020

  Chief Joseph Dam forebay (CHJ) Chief Joseph tailwater (CHQW)
Date Min Avg Max >68.05 Min Avg Max >68.05
Sep 1 65.1 65.4 65.8 0/24 64.6 64.9 65.2 0/24
Sep 2 65.1 65.3 65.7 0/24 64.5 64.8 65.2 0/24
Sep 3 64.8 65.5 66.3 0/24 64.3 64.7 65.1 0/24
Sep 4 65.7 65.9 66.1 0/24 65.1 65.2 65.4 0/24
Sep 5 65.5 65.9 66.2 0/24 65.0 65.3 65.7 0/24
Sep 6 65.5 65.7 65.9 0/24 64.9 65.1 65.3 0/24
Sep 7 65.1 65.6 66.1 0/24 64.8 65.2 65.4 0/24
Sep 8 65.0 65.3 65.6 0/24 64.7 65.0 65.3 0/24
Sep 9 65.2 65.4 65.6 0/24 64.8 65.0 65.3 0/24
Sep 10 65.0 65.3 65.6 0/24 64.5 64.9 65.2 0/24
Sep 11 64.7 65.0 65.3 0/24 64.3 64.7 65.0 0/24
Sep 12 65.2 65.4 65.6 0/24 64.8 65.0 65.2 0/24
Sep 13 65.4 65.4 65.5 0/24 65.0 65.1 65.2 0/24
Sep 14 65.4 65.6 65.8 0/22 65.1 65.3 65.5 0/24
Sep 15 65.2 65.3 65.5 0/24 64.9 65.1 65.3 0/23
Sep 16 64.9 65.0 65.2 0/24 64.7 64.8 65.0 0/24
Sep 17 64.7 65.1 65.8 0/24 64.5 64.9 65.4 0/24
Sep 18 65.6 65.8 65.9 0/24 65.3 65.6 65.8 0/24
Sep 19 65.9 66.1 66.4 0/24 65.6 65.8 66.2 0/24
Sep 20 66.0 66.1 66.4 0/24 65.5 65.7 66.0 0/24
Sep 21 65.9 66.0 66.1 0/24 65.5 65.6 65.7 0/24
Sep 22 65.6 65.9 66.2 0/24 65.3 65.5 65.8 0/24
Sep 23 65.5 65.7 65.8 0/24 65.3 65.4 65.4 0/24
Sep 24 64.8 65.2 65.5 0/24 64.7 65.1 65.5 0/24
Sep 25 64.5 64.6 64.8 0/24 64.4 64.5 64.7 0/24
Sep 26 64.7 65.0 65.3 0/24 64.5 64.8 65.2 0/24
Sep 27 64.7 64.9 65.2 0/24 64.5 64.7 65.1 0/24
Sep 28 64.6 64.7 64.9 0/24 64.4 64.6 64.8 0/24
Sep 29 64.4 64.6 64.8 0/24 64.3 64.4 64.7 0/24
Sep 30 64.6 64.8 65.2 0/24 64.3 64.6 64.8 0/24
>68.05 0 0 0 0/
718
0 0 0 0/
719

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.