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

Deer Flat — February 05, 1989

WEATHER RECORD · DEER FLAT · 1989-02-05 · boise-standard-weather-v1.0.0
HI 8°F · LO -20°F · RNG 28°F · 4 edges
8°F Daily High (TMAX)
-20°F Daily Low (TMIN)
28°F Temp Range · Winter
4 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I a4f2c487e779ab9d
STATION Deer Flat Dam
GHCND ID USC00102444
DATE 1989-02-05 · Winter · Day 36 of 1989
TMAX 8°F
TMIN -20°F
TRANGE 28°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
◈ DUAL PROVENANCE STAMP — INTERNAL NODE + EXTERNAL SOURCE LAW I · LAW II
SOURCE ORG NOAA National Centers for Environmental Information — GHCND
RECORD ID a4f2c487e779ab9d
INGESTED 2026-07-14T16:30:54 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH 7d50bde7cfc20a4f
◈ 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 — 1989 is year 74 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1989-02-05 at Deer Flat Dam (Canyon Floor, canyon, 765.0m elevation), the daily high temperature was 8°F and the daily low was -20°F, a diurnal range of 28°F. Season: Winter. Day 36 of 1989. 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: a4f2c487e779ab9d.

◈ GRAPH EDGES — 4 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION KBOI · 1989-02-05 · High: 7°F Low: -15°F · Elev: 860.5m · conf=0.80 · T2·DET
WEATHER_TEMPORAL_SERIES Deer Flat · 1989-02-04 · High: 11°F Low: -3°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Deer Flat · 1989-02-06 · High: 6°F Low: -19°F · conf=1.00 · T2·DET
WEATHER_EXTREME_EVENT Phenomenon node: phenomenon hard cold 1989 · conf=0.99 · T2·DET
Provenance
NOAA National Centers for Environmental Information — GHCND boise-standard-weather-v1.0.0 a4f2c487e779ab9d /treasure-valley/data/weather/deer-flat-dam/1989/02/05/ 7d50bde7cfc20a4f