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

Arrowrock Dam — April 09, 1982HARD FREEZE

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 1982-04-09 at Arrowrock Dam (Boise River Basin, 3,241 ft elevation, Boise County, Idaho), the daily high temperature was 47°F and the daily low was 26°F, a diurnal range of 21°F. Season: Spring. Day 99 of 1982. This date recorded a hard freeze (low ≤ 28°F) during the growing season.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: 7665e39569decfc9 · Hash: c7f6e47d752a6f4e
47°F
Daily High (TMAX)
26°F
Daily Low (TMIN)
21°F
Temp Range
3
Graph Edges
◈ Primary Source Record · NOAA GHCND · Tier 1
Station
Arrowrock Dam
GHCND ID
USC00100448
Date
1982-04-09 · Spring · Day 99 of 1982
High (TMAX)
47°F
Low (TMIN)
26°F
Range
21°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
7665e39569decfc9
Content Hash
c7f6e47d752a6f4e
Ingested
2026-07-25T14:45:12 UTC
Pipeline
idahocity-weather-v2.0.0
◈ Graph Edges — 3 Connections · Tier 2 · Deterministic
WEATHER_CROSS_STATION
1982-04-09 | KBOI(860.5m) → USC00100448(988.0m) | Δelev=128m
conf=0.81 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Arrowrock Dam · 1982-04-08 · Hi:44°F Lo:26°F
conf=1.00 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Arrowrock Dam · 1982-04-10 · Hi:52°F Lo:29°F
conf=1.00 · tier-2 · deterministic
◈ Provenance · Sources · Knowledge Graph Context
Every Source. Declared. Permanent.