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

Deer Flat — April 30, 1972HARD FREEZE

WEATHER RECORD · DEER FLAT · 1972-04-30 · boise-standard-weather-v1.0.0
HI 53°F · LO 28°F · RNG 25°F · 4 edges
53°F Daily High (TMAX)
28°F Daily Low (TMIN)
25°F Temp Range · Spring
4 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I e493dbae6ae95e35
STATION Deer Flat Dam
GHCND ID USC00102444
DATE 1972-04-30 · Spring · Day 121 of 1972
TMAX 53°F
TMIN 28°F
TRANGE 25°F
ZONE canyon_floor
COUNTY canyon
ELEVATION 765.0m · Canyon Floor
COORDINATES 43.5765°N, -116.7475°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 e493dbae6ae95e35
INGESTED 2026-07-14T16:30:54 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH 27c408cfc189e02f
◈ STATION CONTEXT — DEER FLAT MICROCLIMATE · CANYON FLOOR
STATION DESC Lake Lowell / Deer Flat Dam station with records back to 1916 — the oldest station in the dataset. Canyon County floor, water infrastructure context. Records span the full history of modern irrigation agriculture in the Snake River Plain.
RECORD SINCE 1916 — 1972 is year 57 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1972-04-30 at Deer Flat Dam (Canyon Floor, canyon, 765.0m elevation), the daily high temperature was 53°F and the daily low was 28°F, a diurnal range of 25°F. Season: Spring. Day 121 of 1972. 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: e493dbae6ae95e35.

◈ GRAPH EDGES — 4 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION KBOI · 1972-04-30 · High: 51°F Low: 25°F · Elev: 860.5m · conf=0.80 · T2·DET
WEATHER_TEMPORAL_SERIES Deer Flat · 1972-04-29 · High: 61°F Low: 41°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Deer Flat · 1972-05-01 · High: 64°F Low: 30°F · conf=1.00 · T2·DET
WEATHER_TO_AGRICULTURE Agriculture vertical anchor — frost/freeze event · conf=0.95 · T2·DET
Provenance
NOAA National Centers for Environmental Information — GHCND boise-standard-weather-v1.0.0 e493dbae6ae95e35 /treasure-valley/data/weather/deer-flat-dam/1972/04/30/ 27c408cfc189e02f