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

Lucky Peak — April 28, 1971FROST EVENT

WEATHER RECORD · LUCKY PEAK · 1971-04-28 · boise-standard-weather-v1.0.0
HI 66°F · LO 36°F · RNG 30°F · 3 edges
66°F Daily High (TMAX)
36°F Daily Low (TMIN)
30°F Temp Range · Spring
3 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I d426b0500234b99e
STATION Boise Lucky Peak Dam
GHCND ID USC00101018
DATE 1971-04-28 · Spring · Day 118 of 1971
TMAX 66°F
TMIN 36°F
TRANGE 30°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 FLAGSFROST EVENT
◈ DUAL PROVENANCE STAMP — INTERNAL NODE + EXTERNAL SOURCE LAW I · LAW II
SOURCE ORG NOAA National Centers for Environmental Information — GHCND
RECORD ID d426b0500234b99e
INGESTED 2026-07-14T16:30:58 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH af7e35aa51849b03
◈ 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 1971-04-28 at Boise Lucky Peak Dam (Canyon East, ada, 865.6m elevation), the daily high temperature was 66°F and the daily low was 36°F, a diurnal range of 30°F. Season: Spring. Day 118 of 1971. This date recorded a frost event (tmin ≤ 36°F during growing season). 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: d426b0500234b99e.

◈ GRAPH EDGES — 3 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION KBOI · 1971-04-28 · High: 66°F Low: 45°F · Elev: 860.5m · conf=0.75 · T2·DET
WEATHER_TEMPORAL_SERIES Lucky Peak · 1971-04-27 · High: 59°F Low: 35°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Lucky Peak · 1971-04-29 · High: 67°F Low: 40°F · conf=1.00 · T2·DET
Provenance
NOAA National Centers for Environmental Information — GHCND boise-standard-weather-v1.0.0 d426b0500234b99e /treasure-valley/data/weather/lucky-peak-dam/1971/04/28/ af7e35aa51849b03