What was the temperature at Arrowrock Dam on 1981-08-18?

On 1981-08-18, the daily high at Arrowrock Dam (Boise River Basin, 3,241 ft, Boise County, Idaho) was 99°F and the daily low was 57°F. Source: NOAA GHCND. Pipeline: idahocity-weather-v2.0.0.

Arrowrock Dam Weather — August 18, 1981

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

On 1981-08-18 at Arrowrock Dam (Boise River Basin, 3,241 ft elevation, Boise County, Idaho), the daily high temperature was 99°F and the daily low was 57°F, a diurnal range of 42°F. Season: Summer. Day 230 of 1981. This date recorded a heat event (high ≥ 95°F) at 3,241 ft.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: be298de775c662c0 · Hash: ff93163f32fae1d3

99°F

Daily High (TMAX)

57°F

Daily Low (TMIN)

42°F

Temp Range

Graph Edges

◈ Primary Source Record · NOAA GHCND · Tier 1

Station

Arrowrock Dam

GHCND ID

USC00100448

Date

1981-08-18 · Summer · Day 230 of 1981

High (TMAX)

99°F

Low (TMIN)

57°F

Range

42°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

be298de775c662c0

Content Hash

ff93163f32fae1d3

Ingested

2026-07-25T14:45:12 UTC

Pipeline

idahocity-weather-v2.0.0

◈ Graph Edges — 3 Connections · Tier 2 · Deterministic

WEATHER_CROSS_STATION

1981-08-18 | KBOI(860.5m) → USC00100448(988.0m) | Δelev=128m

conf=0.81 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Arrowrock Dam · 1981-08-17 · Hi:97°F Lo:57°F

conf=1.00 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Arrowrock Dam · 1981-08-19 · Hi:95°F Lo:63°F

conf=1.00 · tier-2 · deterministic

Arrowrock Dam — August 18, 1981HEAT EVENT