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

Deer Flat — April 06, 1956HARD FREEZE

WEATHER RECORD · DEER FLAT · 1956-04-06 · boise-standard-weather-v1.0.0
HI 58°F · LO 22°F · RNG 36°F · 4 edges
58°F Daily High (TMAX)
22°F Daily Low (TMIN)
36°F Temp Range · Spring
4 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I b33ec8fe84a99fcc
STATION Deer Flat Dam
GHCND ID USC00102444
DATE 1956-04-06 · Spring · Day 97 of 1956
TMAX 58°F
TMIN 22°F
TRANGE 36°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 b33ec8fe84a99fcc
INGESTED 2026-07-14T16:30:54 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH 24f30f5a7783689f
◈ 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 — 1956 is year 41 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1956-04-06 at Deer Flat Dam (Canyon Floor, canyon, 765.0m elevation), the daily high temperature was 58°F and the daily low was 22°F, a diurnal range of 36°F. Season: Spring. Day 97 of 1956. 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: b33ec8fe84a99fcc.

◈ GRAPH EDGES — 4 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION KBOI · 1956-04-06 · High: 58°F Low: 24°F · Elev: 860.5m · conf=0.80 · T2·DET
WEATHER_TEMPORAL_SERIES Deer Flat · 1956-04-05 · High: 66°F Low: 35°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Deer Flat · 1956-04-07 · High: 58°F Low: 42°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 b33ec8fe84a99fcc /treasure-valley/data/weather/deer-flat-dam/1956/04/06/ 24f30f5a7783689f