2021 Annual Water Temperature Exceedance Summary
Generated 2021-12-31 05:30

Gauge Name Gauge
ID
Date of First Daily
Average Temperature
over 68°F
Date of Last Daily
Average Temperature
over 68°F
Days with Daily
Average Temperature
over 68°F
Maximum
Daily Temperature
During Year
Date of Maximum
Daily Temperature
Libby Dam and Lake Koocanusa near Libby LBQM n/a n/a 0 58.4°F Aug 20
Albeni Falls forebay ALFI Jun 28 Aug 31 65 76.7°F Aug 05
Albeni Falls tailwater ALQI Jun 28 Aug 31 65 76.6°F Aug 05
Chief Joseph Dam forebay CHJ n/a n/a 0 67.7°F Aug 16
Chief Joseph tailwater CHQW n/a n/a 0 67.3°F Aug 15
Anatone - Snake River Near Anatone ANQW Mar 04 Sep 16 88 432.9°F Mar 04
Dworshak - N. Fork Clearwater R at Ahsahka DWQI n/a n/a 0 49.7°F Nov 04
Peck - Clearwater River at Peck PEKI Jun 08 Jul 22 3 71.3°F Jun 08
Lewiston - Clearwater River near Lewiston LEWI n/a n/a 0 64.1°F Jun 22
Lower Granite Dam forebay LWG Jul 10 Aug 19 23 71.3°F Aug 04
Lower Granite tailwater - Snake R. below dam LGNW Jul 11 Aug 16 19 70.7°F Aug 04
Little Goose Dam forebay LGSA Jun 27 Aug 29 60 71.8°F Aug 10
Little Goose Dam tailwater (Snake R. below Little Goose) LGSW Jun 27 Aug 29 60 71.7°F Aug 10
Lower Monumental Dam forebay on Snake River LMNA Jun 28 Sep 02 67 72.1°F Aug 19
Lower Monumental tailwater below the dam on Snake River LMNW Jun 29 Sep 03 67 72.0°F Aug 14
Ice Harbor Dam forebay IHRA Jul 01 Sep 01 63 72.7°F Aug 19
Ice Harbor tailwater- Snake R. below Goose Is. IDSW Jun 30 Sep 15 78 72.8°F Jul 18
Pasco - Columbia Rivers PAQW Mar 29 Aug 31 41 156.5°F Mar 29
McNary Dam forebay on Columbia R. MCNA Jun 30 Sep 01 59 72.0°F Aug 02
McNary Dam tailwater on Columbia R. MCPW Jun 30 Sep 18 78 72.1°F Aug 03
John Day Dam forebay JDY Jun 28 Sep 19 84 73.9°F Aug 13
John Day Dam tailwater JHAW Jun 28 Sep 19 84 73.5°F Aug 13
The Dalles Dam forebay on Columbia R. TDA Jun 28 Sep 16 80 73.6°F Aug 12
The Dalles tailwater Downstream TDDO Jun 28 Sep 16 80 73.7°F Aug 14
Bonneville Dam forebay BON Jun 28 Sep 13 78 73.9°F Aug 14
Cascade Island CCIW Jun 28 Sep 01 66 74.0°F Aug 14
Warrendale WRNO Jun 28 Sep 12 74 74.2°F Aug 15
Camas / Washougal CWMW n/a n/a 0 n/a n/a