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

Deer Flat — April 15, 1953HARD FREEZE

WEATHER RECORD · DEER FLAT · 1953-04-15 · boise-standard-weather-v1.0.0
HI 61°F · LO 25°F · RNG 36°F · 6 edges
61°F Daily High (TMAX)
25°F Daily Low (TMIN)
36°F Temp Range · Spring
6 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I 976c2464b295c1c2
STATION Deer Flat Dam
GHCND ID USC00102444
DATE 1953-04-15 · Spring · Day 105 of 1953
TMAX 61°F
TMIN 25°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 976c2464b295c1c2
INGESTED 2026-07-14T16:30:54 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH 9d3a7917fc8111e6
◈ 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 — 1953 is year 38 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1953-04-15 at Deer Flat Dam (Canyon Floor, canyon, 765.0m elevation), the daily high temperature was 61°F and the daily low was 25°F, a diurnal range of 36°F. Season: Spring. Day 105 of 1953. 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: 976c2464b295c1c2.

◈ GRAPH EDGES — 6 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION KBOI · 1953-04-15 · High: 59°F Low: 27°F · Elev: 860.5m · conf=0.80 · T2·DET
WEATHER_TEMPORAL_SERIES Deer Flat · 1953-04-14 · High: 55°F Low: 36°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Deer Flat · 1953-04-16 · High: 65°F Low: 33°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 976c2464b295c1c2 /treasure-valley/data/weather/deer-flat-dam/1953/04/15/ 9d3a7917fc8111e6