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Weather Intelligence · Canyon East · boise-standard-weather-v1.0.0

Lucky Peak — October 28, 1971HARD FREEZE

WEATHER RECORD · LUCKY PEAK · 1971-10-28 · boise-standard-weather-v1.0.0
HI 40°F · LO 22°F · RNG 18°F · 3 edges
40°F Daily High (TMAX)
22°F Daily Low (TMIN)
18°F Temp Range · Fall
3 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I a3064b4eb532e73d
STATION Boise Lucky Peak Dam
GHCND ID USC00101018
DATE 1971-10-28 · Fall · Day 301 of 1971
TMAX 40°F
TMIN 22°F
TRANGE 18°F
ZONE canyon_east
COUNTY ada
ELEVATION 865.6m · Canyon East
COORDINATES 43.5253°N, -116.0542°W
SOURCE TIER TIER 1 — PRIMARY FEDERAL SOURCE — NOAA GHCND
CONFIDENCE 0.95
EVENT FLAGSHARD FREEZE
◈ DUAL PROVENANCE STAMP — INTERNAL NODE + EXTERNAL SOURCE LAW I · LAW II
SOURCE ORG NOAA National Centers for Environmental Information — GHCND
RECORD ID a3064b4eb532e73d
INGESTED 2026-07-14T16:30:58 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH 47d0b10ab8cbcffd
◈ STATION CONTEXT — LUCKY PEAK MICROCLIMATE · CANYON EAST
STATION DESC Eastern Ada County at the Boise River canyon mouth. Records back to 1951. Captures the canyon east microclimate — influenced by mountain air drainage from the Boise Range. Army Corps of Engineers water management context.
RECORD SINCE 1951 — 1971 is year 21 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1971-10-28 at Boise Lucky Peak Dam (Canyon East, ada, 865.6m elevation), the daily high temperature was 40°F and the daily low was 22°F, a diurnal range of 18°F. Season: Fall. Day 301 of 1971. This date recorded a hard freeze event (tmin ≤ 28°F). Source: NOAA National Centers for Environmental Information — GHCND. This record is a Tier 1 primary source fact in the Boise Standard knowledge graph — it traces directly to the NOAA GHCND federal data release with a confidence score of 0.95. Pipeline: boise-standard-weather-v1.0.0. Record ID: a3064b4eb532e73d.

◈ GRAPH EDGES — 3 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION KBOI · 1971-10-28 · High: 39°F Low: 23°F · Elev: 860.5m · conf=0.75 · T2·DET
WEATHER_TEMPORAL_SERIES Lucky Peak · 1971-10-27 · High: 60°F Low: 29°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Lucky Peak · 1971-10-29 · High: 39°F Low: 10°F · conf=1.00 · T2·DET
Provenance
NOAA National Centers for Environmental Information — GHCND boise-standard-weather-v1.0.0 a3064b4eb532e73d /treasure-valley/data/weather/lucky-peak-dam/1971/10/28/ 47d0b10ab8cbcffd