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Weather Intelligence · Foothills Margin · boise-standard-weather-v1.0.0

Boise Foothills — April 17, 1974FROST EVENT

WEATHER RECORD · BOISE FOOTHILLS · 1974-04-17 · boise-standard-weather-v1.0.0
HI 70°F · LO 36°F · RNG 34°F · 3 edges
70°F Daily High (TMAX)
36°F Daily Low (TMIN)
34°F Temp Range · Spring
3 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I e0e5fe4273ccd054
STATION Boise 7 N (Foothills)
GHCND ID USC00101017
DATE 1974-04-17 · Spring · Day 107 of 1974
TMAX 70°F
TMIN 36°F
TRANGE 34°F
ZONE foothills_margin
COUNTY ada
ELEVATION 1184.1m · Foothills Margin
COORDINATES 43.7383°N, -116.2022°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 e0e5fe4273ccd054
INGESTED 2026-07-14T16:30:48 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH 0c71c907e613d3cb
◈ STATION CONTEXT — BOISE FOOTHILLS MICROCLIMATE · FOOTHILLS MARGIN
STATION DESC Foothills station 324 meters above KBOI. Captures the Boise Front microclimate — cooler summers, deeper inversions, earlier frost dates than the valley floor. Critical for understanding the elevation gradient across the Treasure Valley.
RECORD SINCE 1973 — 1974 is year 2 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1974-04-17 at Boise 7 N (Foothills) (Foothills Margin, ada, 1184.1m elevation), the daily high temperature was 70°F and the daily low was 36°F, a diurnal range of 34°F. Season: Spring. Day 107 of 1974. 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: e0e5fe4273ccd054.

◈ GRAPH EDGES — 3 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION KBOI · 1974-04-17 · High: 74°F Low: 38°F · Elev: 860.5m · conf=0.91 · T2·DET
WEATHER_TEMPORAL_SERIES Boise Foothills · 1974-04-16 · High: 57°F Low: 36°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Boise Foothills · 1974-04-18 · High: 65°F Low: 47°F · conf=1.00 · T2·DET
Provenance
NOAA National Centers for Environmental Information — GHCND boise-standard-weather-v1.0.0 e0e5fe4273ccd054 /treasure-valley/data/weather/boise-foothills/1974/04/17/ 0c71c907e613d3cb