Mid and Upper-Columbia River Temperature Report for April 2025  
Generated 2025-04-29 21:27:05

  Chief Joseph Dam forebay (CHJ) Chief Joseph tailwater (CHQW)
Date Min Avg Max >68.05 Min Avg Max >68.05
04 01 39.6 39.6 39.8 0/24 39.3 39.4 39.6 0/24
04 02 39.6 39.8 40.0 0/24 39.3 39.6 40.1 0/24
04 03 39.5 39.8 40.3 0/24 39.3 39.7 40.4 0/24
04 04 39.7 39.9 40.2 0/24 39.5 39.8 40.2 0/24
04 05 39.9 40.1 40.4 0/24 39.7 39.9 40.4 0/24
04 06 40.0 40.2 40.4 0/24 39.9 40.0 40.4 0/24
04 07 40.2 40.3 40.5 0/24 40.0 40.1 40.4 0/24
04 08 40.3 40.4 40.5 0/24 40.1 40.2 40.5 0/24
04 09 40.3 40.5 40.8 0/24 40.0 40.3 40.6 0/24
04 10 40.4 40.5 40.6 0/24 40.2 40.3 40.4 0/23
04 11 40.4 40.7 40.9 0/24 40.2 40.4 40.8 0/24
04 12 40.7 41.3 41.6 0/24 40.6 41.1 41.5 0/24
04 13 41.2 41.4 41.5 0/24 40.9 41.1 41.4 0/24
04 14 41.2 41.3 41.6 0/24 40.9 41.1 41.3 0/24
04 15 41.2 41.6 42.2 0/24 41.0 41.3 41.7 0/24
04 16 41.6 41.9 42.3 0/24 41.4 41.7 41.9 0/24
04 17 42.2 42.5 43.0 0/24 41.9 42.1 42.4 0/24
04 18 42.3 42.7 43.1 0/24 42.3 42.5 42.8 0/24
04 19 42.2 42.6 43.0 0/24 42.0 42.3 42.7 0/24
04 20 42.6 42.8 43.0 0/24 42.4 42.5 42.9 0/24
04 21 42.9 43.6 44.4 0/24 42.5 43.2 43.6 0/24
04 22 43.5 43.8 44.1 0/24 43.2 43.5 43.8 0/24
04 23 43.3 43.6 44.2 0/24 43.0 43.3 43.6 0/24
04 24 43.5 44.0 44.6 0/24 43.2 43.5 44.0 0/24
04 25 44.0 44.3 44.9 0/20 43.6 44.0 44.4 0/24
04 26 44.8 45.2 45.9 0/23 44.1 44.7 45.4 0/24
04 27 45.5 45.8 46.3 0/24 44.9 45.3 45.9 0/24
04 28 46.0 46.2 46.4 0/24 45.4 45.6 46.0 0/24
04 29 46.0 46.1 46.2 0/13 45.5 45.7 46.2 0/21
04 30 --- --- --- 0/0 --- --- --- 0/0
>68.05 0 0 0 0/
680		 0 0 0 0/
692

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.