IC
Idaho City
Boise County · Est. 1862
◈ MACHINE ACCESS
Historical Weather · Boise River Basin · idahocity-weather-v2.0.0

Arrowrock Dam — May 01, 1977

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 1977-05-01 at Arrowrock Dam (Boise River Basin, 3,241 ft elevation, Boise County, Idaho), the daily high temperature was 80°F and the daily low was 45°F, a diurnal range of 35°F. Season: Spring. Day 121 of 1977.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: de5ff89d644b4c63 · Hash: 681691bc394fd982
80°F
Daily High (TMAX)
45°F
Daily Low (TMIN)
35°F
Temp Range
3
Graph Edges
◈ Primary Source Record · NOAA GHCND · Tier 1
Station
Arrowrock Dam
GHCND ID
USC00100448
Date
1977-05-01 · Spring · Day 121 of 1977
High (TMAX)
80°F
Low (TMIN)
45°F
Range
35°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
de5ff89d644b4c63
Content Hash
681691bc394fd982
Ingested
2026-07-25T14:45:12 UTC
Pipeline
idahocity-weather-v2.0.0
◈ Graph Edges — 3 Connections · Tier 2 · Deterministic
WEATHER_CROSS_STATION
1977-05-01 | KBOI(860.5m) → USC00100448(988.0m) | Δelev=128m
conf=0.81 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Arrowrock Dam · 1977-04-30 · Hi:75°F Lo:45°F
conf=1.00 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Arrowrock Dam · 1977-05-02 · Hi:66°F Lo:45°F
conf=1.00 · tier-2 · deterministic
◈ Provenance · Sources · Knowledge Graph Context
Every Source. Declared. Permanent.