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

Deer Flat — October 06, 1990FROST EVENT

WEATHER RECORD · DEER FLAT · 1990-10-06 · boise-standard-weather-v1.0.0
HI 58°F · LO 33°F · RNG 25°F · 4 edges
58°F Daily High (TMAX)
33°F Daily Low (TMIN)
25°F Temp Range · Fall
4 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I c9b6616a0afac2f6
STATION Deer Flat Dam
GHCND ID USC00102444
DATE 1990-10-06 · Fall · Day 279 of 1990
TMAX 58°F
TMIN 33°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 FLAGSFROST EVENT
◈ DUAL PROVENANCE STAMP — INTERNAL NODE + EXTERNAL SOURCE LAW I · LAW II
SOURCE ORG NOAA National Centers for Environmental Information — GHCND
RECORD ID c9b6616a0afac2f6
INGESTED 2026-07-14T16:30:54 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH c531618f5b1f2442
◈ 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 — 1990 is year 75 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1990-10-06 at Deer Flat Dam (Canyon Floor, canyon, 765.0m elevation), the daily high temperature was 58°F and the daily low was 33°F, a diurnal range of 25°F. Season: Fall. Day 279 of 1990. 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: c9b6616a0afac2f6.

◈ GRAPH EDGES — 4 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION KBOI · 1990-10-06 · High: 56°F Low: 31°F · Elev: 860.5m · conf=0.80 · T2·DET
WEATHER_TEMPORAL_SERIES Deer Flat · 1990-10-05 · High: 76°F Low: 51°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Deer Flat · 1990-10-07 · High: 59°F Low: 31°F · conf=1.00 · T2·DET
WEATHER_TO_AGRICULTURE Agriculture vertical anchor — frost/freeze event · conf=0.80 · T2·DET
Provenance
NOAA National Centers for Environmental Information — GHCND boise-standard-weather-v1.0.0 c9b6616a0afac2f6 /treasure-valley/data/weather/deer-flat-dam/1990/10/06/ c531618f5b1f2442