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

Deer Flat — December 11, 1985

WEATHER RECORD · DEER FLAT · 1985-12-11 · boise-standard-weather-v1.0.0
HI 20°F · LO -9°F · RNG 29°F · 4 edges
20°F Daily High (TMAX)
-9°F Daily Low (TMIN)
29°F Temp Range · Winter
4 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I bb691766e97fb4a1
STATION Deer Flat Dam
GHCND ID USC00102444
DATE 1985-12-11 · Winter · Day 345 of 1985
TMAX 20°F
TMIN -9°F
TRANGE 29°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 bb691766e97fb4a1
INGESTED 2026-07-14T16:30:54 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH 704900859e695cce
◈ 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 — 1985 is year 70 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1985-12-11 at Deer Flat Dam (Canyon Floor, canyon, 765.0m elevation), the daily high temperature was 20°F and the daily low was -9°F, a diurnal range of 29°F. Season: Winter. Day 345 of 1985. 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: bb691766e97fb4a1.

◈ GRAPH EDGES — 4 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION KBOI · 1985-12-11 · High: 17°F Low: -2°F · Elev: 860.5m · conf=0.80 · T2·DET
WEATHER_TEMPORAL_SERIES Deer Flat · 1985-12-10 · High: 31°F Low: 13°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Deer Flat · 1985-12-12 · High: 15°F Low: -5°F · conf=1.00 · T2·DET
WEATHER_EXTREME_EVENT Phenomenon node: phenomenon hard cold 1985 · conf=0.99 · T2·DET
Provenance
NOAA National Centers for Environmental Information — GHCND boise-standard-weather-v1.0.0 bb691766e97fb4a1 /treasure-valley/data/weather/deer-flat-dam/1985/12/11/ 704900859e695cce