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

Deer Flat — October 18, 1948HARD FREEZE

WEATHER RECORD · DEER FLAT · 1948-10-18 · boise-standard-weather-v1.0.0
HI 62°F · LO 21°F · RNG 41°F · 4 edges
62°F Daily High (TMAX)
21°F Daily Low (TMIN)
41°F Temp Range · Fall
4 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I b915d67be90bc8e7
STATION Deer Flat Dam
GHCND ID USC00102444
DATE 1948-10-18 · Fall · Day 292 of 1948
TMAX 62°F
TMIN 21°F
TRANGE 41°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 b915d67be90bc8e7
INGESTED 2026-07-14T16:30:54 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH 56b448aba342f921
◈ 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 — 1948 is year 33 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1948-10-18 at Deer Flat Dam (Canyon Floor, canyon, 765.0m elevation), the daily high temperature was 62°F and the daily low was 21°F, a diurnal range of 41°F. Season: Fall. Day 292 of 1948. 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: b915d67be90bc8e7.

◈ GRAPH EDGES — 4 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION KBOI · 1948-10-18 · High: 65°F Low: 33°F · Elev: 860.5m · conf=0.80 · T2·DET
WEATHER_TEMPORAL_SERIES Deer Flat · 1948-10-17 · High: 59°F Low: 23°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Deer Flat · 1948-10-19 · High: 64°F Low: 25°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 b915d67be90bc8e7 /treasure-valley/data/weather/deer-flat-dam/1948/10/18/ 56b448aba342f921