What was the temperature at Arrowrock Dam on 1999-09-15?

On 1999-09-15, the daily high at Arrowrock Dam (Boise River Basin, 3,241 ft, Boise County, Idaho) was 86°F and the daily low was 47°F. Source: NOAA GHCND. Pipeline: idahocity-weather-v2.0.0.

Arrowrock Dam Weather — September 15, 1999

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

On 1999-09-15 at Arrowrock Dam (Boise River Basin, 3,241 ft elevation, Boise County, Idaho), the daily high temperature was 86°F and the daily low was 47°F, a diurnal range of 39°F. Season: Fall. Day 258 of 1999.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: 01d6f5f899c9dd79 · Hash: eeb87902523efa15

86°F

Daily High (TMAX)

47°F

Daily Low (TMIN)

39°F

Temp Range

Graph Edges

◈ Primary Source Record · NOAA GHCND · Tier 1

Station

Arrowrock Dam

GHCND ID

USC00100448

Date

1999-09-15 · Fall · Day 258 of 1999

High (TMAX)

86°F

Low (TMIN)

47°F

Range

39°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

01d6f5f899c9dd79

Content Hash

eeb87902523efa15

Ingested

2026-07-25T14:45:12 UTC

Pipeline

idahocity-weather-v2.0.0

◈ Graph Edges — 4 Connections · Tier 2 · Deterministic

WEATHER_CROSS_STATION

1999-09-15 | KBOI(860.5m) → USC00100448(988.0m) | Δelev=128m

conf=0.81 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Arrowrock Dam · 1999-09-14 · Hi:84°F Lo:43°F

conf=1.00 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Arrowrock Dam · 1999-09-16 · Hi:88°F Lo:47°F

conf=1.00 · tier-2 · deterministic

WEATHER_SEASONAL_PATTERN

Arrowrock Dam · 1998-09-15 · same month, consecutive year

conf=0.90 · tier-2 · deterministic

Arrowrock Dam — September 15, 1999