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

KBOI — October 26, 1987FROST EVENT

WEATHER RECORD · KBOI · 1987-10-26 · boise-standard-weather-v1.0.0
HI 68°F · LO 36°F · RNG 32°F · 6 edges
68°F Daily High (TMAX)
36°F Daily Low (TMIN)
32°F Temp Range · Fall
6 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I d7ee9de265ec2a8e
STATION Boise Air Terminal (KBOI)
GHCND ID USW00024131
DATE 1987-10-26 · Fall · Day 299 of 1987
TMAX 68°F
TMIN 36°F
TRANGE 32°F
ZONE valley_floor
COUNTY ada
ELEVATION 860.5m · Valley Floor
COORDINATES 43.56705°N, -116.24062°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 d7ee9de265ec2a8e
INGESTED 2026-07-14T16:30:44 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH 09d8568d796f1845
◈ STATION CONTEXT — KBOI MICROCLIMATE · VALLEY FLOOR
STATION DESC The primary NWS observation station for the Treasure Valley. Boise Airport (KBOI) has recorded daily temperature since 1940, making it the longest continuous climate record in the region. Sits at 860 meters on the valley floor.
RECORD SINCE 1940 — 1987 is year 48 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1987-10-26 at Boise Air Terminal (KBOI) (Valley Floor, ada, 860.5m elevation), the daily high temperature was 68°F and the daily low was 36°F, a diurnal range of 32°F. Season: Fall. Day 299 of 1987. 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: d7ee9de265ec2a8e.

◈ GRAPH EDGES — 6 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION Boise Foothills · 1987-10-26 · High: 67°F Low: 39°F · Elev: 1184.1m · conf=0.91 · T2·DET
WEATHER_CROSS_STATION Parma · 1987-10-26 · High: 73°F Low: 30°F · Elev: 698.0m · conf=0.83 · T2·DET
WEATHER_CROSS_STATION Deer Flat · 1987-10-26 · High: 70°F Low: 34°F · Elev: 765.0m · conf=0.80 · T2·DET
WEATHER_CROSS_STATION Lucky Peak · 1987-10-26 · High: 71°F Low: 45°F · Elev: 865.6m · conf=0.75 · T2·DET
WEATHER_TEMPORAL_SERIES KBOI · 1987-10-25 · High: 70°F Low: 38°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES KBOI · 1987-10-27 · High: 71°F Low: 40°F · conf=1.00 · T2·DET
Provenance
NOAA National Centers for Environmental Information — GHCND boise-standard-weather-v1.0.0 d7ee9de265ec2a8e /treasure-valley/data/weather/kboi/1987/10/26/ 09d8568d796f1845