Lower Snake River Temperature Report for December 2020  
Generated Fri Jan 1 06:18:05 2021

  Anatone - Snake River Near Anatone (ANQW) Lower Granite Dam forebay (LWG) Lower Granite tailwater - Snake R. below dam (LGNW) Little Goose Dam forebay (LGSA) Little Goose Dam tailwater (Snake R. below Little Goose) (LGSW) Lower Monumental Dam forebay on Snake River (LMNA) Lower Monumental tailwater below the dam on Snake River (LMNW) Ice Harbor Dam forebay (IHRA) Ice Harbor tailwater- Snake R. below Goose Is. (IDSW)
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
Dec 1 41.6 41.9 42.2 0/24 --- --- --- 0/0 43.1 43.3 43.7 0/24 --- --- --- 0/0 44.7 44.9 45.1 0/24 --- --- --- 0/0 45.2 45.3 45.5 0/24 --- --- --- 0/0 46.1 46.3 46.5 0/24
Dec 2 40.7 41.2 41.6 0/24 --- --- --- 0/0 42.8 42.9 43.0 0/24 --- --- --- 0/0 44.3 44.6 44.8 0/24 --- --- --- 0/0 45.0 45.1 45.2 0/24 --- --- --- 0/0 45.7 45.9 46.2 0/22
Dec 3 40.4 40.8 41.1 0/24 --- --- --- 0/0 42.5 42.6 42.8 0/24 --- --- --- 0/0 43.8 44.1 44.3 0/24 --- --- --- 0/0 44.9 45.0 45.0 0/24 --- --- --- 0/0 45.3 45.6 45.7 0/24
Dec 4 39.9 40.1 40.3 0/24 --- --- --- 0/0 42.3 42.4 42.5 0/24 --- --- --- 0/0 43.5 43.7 43.9 0/24 --- --- --- 0/0 44.6 44.7 44.8 0/24 --- --- --- 0/0 44.9 45.1 45.3 0/24
Dec 5 39.7 40.0 40.4 0/24 --- --- --- 0/0 42.3 42.3 42.4 0/24 --- --- --- 0/0 43.3 43.4 43.5 0/24 --- --- --- 0/0 44.5 44.6 44.6 0/24 --- --- --- 0/0 44.5 44.7 44.9 0/24
Dec 6 39.7 39.8 40.2 0/24 --- --- --- 0/0 42.1 42.2 42.3 0/24 --- --- --- 0/0 43.0 43.2 43.3 0/24 --- --- --- 0/0 44.3 44.5 44.6 0/24 --- --- --- 0/0 44.2 44.3 44.5 0/24
Dec 7 39.4 39.8 40.3 0/24 --- --- --- 0/0 41.9 42.0 42.0 0/24 --- --- --- 0/0 42.9 43.0 43.1 0/24 --- --- --- 0/0 44.2 44.3 44.4 0/24 --- --- --- 0/0 43.9 44.1 44.2 0/24
Dec 8 39.9 40.8 41.6 0/24 --- --- --- 0/0 41.6 41.8 41.9 0/24 --- --- --- 0/0 42.9 42.9 43.1 0/24 --- --- --- 0/0 44.0 44.2 44.3 0/24 --- --- --- 0/0 43.7 43.8 43.9 0/24
Dec 9 41.0 41.4 42.1 0/24 --- --- --- 0/0 41.2 41.4 41.6 0/24 --- --- --- 0/0 42.8 42.9 43.1 0/24 --- --- --- 0/0 43.7 43.9 44.1 0/24 --- --- --- 0/0 43.5 43.6 44.0 0/24
Dec 10 41.1 41.5 41.8 0/24 --- --- --- 0/0 41.0 41.1 41.2 0/24 --- --- --- 0/0 42.6 42.7 42.7 0/24 --- --- --- 0/0 43.5 43.6 43.7 0/24 --- --- --- 0/0 43.2 43.4 43.5 0/24
Dec 11 40.8 41.0 41.3 0/24 --- --- --- 0/0 40.5 40.8 41.0 0/24 --- --- --- 0/0 42.4 42.5 42.6 0/24 --- --- --- 0/0 43.2 43.3 43.5 0/24 --- --- --- 0/0 43.2 43.3 43.5 0/24
Dec 12 40.6 40.8 41.1 0/24 --- --- --- 0/0 40.0 40.3 40.5 0/24 --- --- --- 0/0 42.0 42.2 42.4 0/24 --- --- --- 0/0 42.9 43.1 43.2 0/24 --- --- --- 0/0 43.0 43.1 43.3 0/24
Dec 13 40.0 40.3 40.5 0/24 --- --- --- 0/0 39.7 39.9 40.0 0/24 --- --- --- 0/0 41.7 41.8 41.9 0/24 --- --- --- 0/0 42.7 42.8 42.9 0/24 --- --- --- 0/0 42.9 43.0 43.1 0/24
Dec 14 40.2 40.6 41.2 0/24 --- --- --- 0/0 39.3 39.4 39.6 0/24 --- --- --- 0/0 41.3 41.6 41.7 0/24 --- --- --- 0/0 42.7 42.7 42.7 0/24 --- --- --- 0/0 42.9 43.0 43.1 0/24
Dec 15 41.0 41.4 41.8 0/24 --- --- --- 0/0 39.3 39.3 39.4 0/24 --- --- --- 0/0 41.1 41.2 41.3 0/24 --- --- --- 0/0 42.6 42.6 42.7 0/24 --- --- --- 0/0 43.0 43.1 43.2 0/24
Dec 16 41.0 41.4 41.8 0/24 --- --- --- 0/0 39.4 39.6 39.8 0/24 --- --- --- 0/0 41.0 41.1 41.1 0/24 --- --- --- 0/0 42.5 42.6 42.6 0/24 --- --- --- 0/0 43.0 43.1 43.2 0/24
Dec 17 41.8 42.0 42.2 0/24 --- --- --- 0/0 39.8 40.1 40.7 0/24 --- --- --- 0/0 40.9 41.0 41.1 0/24 --- --- --- 0/0 42.4 42.5 42.6 0/24 --- --- --- 0/0 42.8 42.9 43.0 0/24
Dec 18 41.8 42.2 42.4 0/24 --- --- --- 0/0 40.7 40.8 40.9 0/24 --- --- --- 0/0 40.8 40.9 41.0 0/24 --- --- --- 0/0 42.2 42.4 42.4 0/24 --- --- --- 0/0 42.6 42.7 42.8 0/24
Dec 19 41.8 42.1 42.4 0/24 --- --- --- 0/0 40.8 40.8 40.9 0/24 --- --- --- 0/0 40.9 40.9 41.0 0/24 --- --- --- 0/0 42.2 42.2 42.3 0/24 --- --- --- 0/0 42.6 42.6 42.7 0/24
Dec 20 42.1 42.4 42.6 0/24 --- --- --- 0/0 40.7 40.9 40.9 0/24 --- --- --- 0/0 40.9 41.0 41.3 0/24 --- --- --- 0/0 42.1 42.3 42.5 0/24 --- --- --- 0/0 42.6 42.7 42.9 0/24
Dec 21 42.4 42.7 43.1 0/24 --- --- --- 0/0 40.7 40.8 40.9 0/24 --- --- --- 0/0 40.8 40.9 40.9 0/24 --- --- --- 0/0 42.1 42.1 42.2 0/24 --- --- --- 0/0 42.7 42.8 42.9 0/24
Dec 22 41.4 42.2 42.7 0/24 --- --- --- 0/0 40.7 40.8 41.0 0/24 --- --- --- 0/0 40.4 40.6 40.8 0/24 --- --- --- 0/0 41.8 41.9 42.2 0/24 --- --- --- 0/0 42.3 42.7 42.8 0/24
Dec 23 39.7 40.4 41.3 0/24 --- --- --- 0/0 40.9 41.0 41.1 0/24 --- --- --- 0/0 40.0 40.2 40.4 0/24 --- --- --- 0/0 41.5 41.7 41.8 0/24 --- --- --- 0/0 42.4 42.5 42.6 0/24
Dec 24 38.8 39.4 39.8 0/24 --- --- --- 0/0 41.0 41.2 41.4 0/24 --- --- --- 0/0 39.7 39.9 40.0 0/24 --- --- --- 0/0 41.3 41.4 41.5 0/24 --- --- --- 0/0 42.2 42.3 42.4 0/24
Dec 25 38.5 38.7 38.9 0/24 --- --- --- 0/0 41.4 41.4 41.5 0/24 --- --- --- 0/0 39.6 39.7 39.8 0/24 --- --- --- 0/0 41.1 41.2 41.4 0/24 --- --- --- 0/0 41.8 42.0 42.1 0/24
Dec 26 38.7 39.1 39.5 0/24 --- --- --- 0/0 41.5 41.6 41.6 0/24 --- --- --- 0/0 39.7 39.8 39.9 0/24 --- --- --- 0/0 40.8 41.0 41.1 0/24 --- --- --- 0/0 41.5 41.7 41.8 0/24
Dec 27 39.1 39.5 39.9 0/24 --- --- --- 0/0 41.4 41.6 41.6 0/24 --- --- --- 0/0 39.7 39.9 40.0 0/24 --- --- --- 0/0 40.4 40.6 40.8 0/24 --- --- --- 0/0 41.0 41.2 41.5 0/24
Dec 28 38.6 39.1 39.4 0/24 --- --- --- 0/0 41.0 41.2 41.5 0/24 --- --- --- 0/0 39.8 39.9 40.0 0/24 --- --- --- 0/0 40.1 40.3 40.4 0/24 --- --- --- 0/0 40.7 40.9 41.0 0/24
Dec 29 38.6 38.9 39.2 0/24 --- --- --- 0/0 40.7 40.8 41.0 0/24 --- --- --- 0/0 39.5 39.7 39.8 0/24 --- --- --- 0/0 39.8 40.0 40.2 0/24 --- --- --- 0/0 40.6 40.6 40.7 0/24
Dec 30 38.7 38.9 39.3 0/24 --- --- --- 0/0 40.1 40.4 40.7 0/24 --- --- --- 0/0 39.4 39.4 39.5 0/24 --- --- --- 0/0 39.6 39.7 39.9 0/24 --- --- --- 0/0 40.5 40.5 40.6 0/24
Dec 31 39.2 39.5 40.1 0/24 --- --- --- 0/0 39.3 39.7 40.2 0/24 --- --- --- 0/0 39.4 39.5 39.6 0/24 --- --- --- 0/0 39.6 39.7 40.0 0/24 --- --- --- 0/0 40.5 40.5 40.8 0/24
>68.05 0 0 0 0/
744		 0 0 0 0/
0		 0 0 0 0/
744		 0 0 0 0/
0		 0 0 0 0/
744		 0 0 0 0/
0		 0 0 0 0/
744		 0 0 0 0/
0		 0 0 0 0/
742

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.