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Historical Weather · Boise River Basin · idahocity-weather-v2.0.0

Arrowrock Dam — May 15, 1981

Arrowrock Dam · 3,241 ft · Boise River Basin · Boise County, Idaho

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

On 1981-05-15 at Arrowrock Dam (Boise River Basin, 3,241 ft elevation, Boise County, Idaho), the daily high temperature was 63°F and the daily low was 43°F, a diurnal range of 20°F. Season: Spring. Day 135 of 1981.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: 2d072c8ccde2ddb5 · Hash: f0e8e93506ea2191
63°F
Daily High (TMAX)
43°F
Daily Low (TMIN)
20°F
Temp Range
5
Graph Edges
◈ Primary Source Record · NOAA GHCND · Tier 1
Station
Arrowrock Dam
GHCND ID
USC00100448
Date
1981-05-15 · Spring · Day 135 of 1981
High (TMAX)
63°F
Low (TMIN)
43°F
Range
20°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
2d072c8ccde2ddb5
Content Hash
f0e8e93506ea2191
Ingested
2026-07-25T14:45:12 UTC
Pipeline
idahocity-weather-v2.0.0
◈ Graph Edges — 5 Connections · Tier 2 · Deterministic
WEATHER_CROSS_STATION
1981-05-15 | KBOI(860.5m) → USC00100448(988.0m) | Δelev=128m
conf=0.81 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Arrowrock Dam · 1981-05-14 · Hi:68°F Lo:38°F
conf=1.00 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Arrowrock Dam · 1981-05-16 · Hi:58°F Lo:36°F
conf=1.00 · tier-2 · deterministic
WEATHER_SEASONAL_PATTERN
WEATHER_SEASONAL_PATTERN
◈ Provenance · Sources · Knowledge Graph Context
Every Source. Declared. Permanent.