What was the temperature at Arrowrock Dam on 1977-12-12?

On 1977-12-12, the daily high at Arrowrock Dam (Boise River Basin, 3,241 ft, Boise County, Idaho) was 40°F and the daily low was 32°F. Source: NOAA GHCND. Pipeline: idahocity-weather-v2.0.0.

Arrowrock Dam Weather — December 12, 1977

◈ Atomic Answer · NOAA GHCND · Tier 1 Primary Source · idahocity-weather-v2.0.0

On 1977-12-12 at Arrowrock Dam (Boise River Basin, 3,241 ft elevation, Boise County, Idaho), the daily high temperature was 40°F and the daily low was 32°F, a diurnal range of 8°F. Season: Winter. Day 346 of 1977.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: 6570eab9729b96ac · Hash: 7ceb73c710197bbb

40°F

Daily High (TMAX)

32°F

Daily Low (TMIN)

8°F

Temp Range

Graph Edges

◈ Primary Source Record · NOAA GHCND · Tier 1

Station

Arrowrock Dam

GHCND ID

USC00100448

Date

1977-12-12 · Winter · Day 346 of 1977

High (TMAX)

40°F

Low (TMIN)

32°F

Range

8°F

Zone

Boise River Basin

Elevation

3,241 ft · 988 m

Coordinates

43.6°N, 115.9167°W

Geography

boise_county

Source Tier

Tier 1 — Primary Federal Source — NOAA GHCND

Confidence

0.95

Record ID

6570eab9729b96ac

Content Hash

7ceb73c710197bbb

Ingested

2026-07-25T14:45:12 UTC

Pipeline

idahocity-weather-v2.0.0

◈ Graph Edges — 3 Connections · Tier 2 · Deterministic

WEATHER_CROSS_STATION

1977-12-12 | KBOI(860.5m) → USC00100448(988.0m) | Δelev=128m

conf=0.81 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Arrowrock Dam · 1977-12-11 · Hi:40°F Lo:29°F

conf=1.00 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Arrowrock Dam · 1977-12-13 · Hi:43°F Lo:31°F

conf=1.00 · tier-2 · deterministic

Arrowrock Dam — December 12, 1977