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Weather Intelligence · Snake River Corridor · boise-standard-weather-v1.0.0

Parma — September 27, 1926HARD FREEZE

WEATHER RECORD · PARMA · 1926-09-27 · boise-standard-weather-v1.0.0
HI 75°F · LO 21°F · RNG 54°F · 3 edges
75°F Daily High (TMAX)
21°F Daily Low (TMIN)
54°F Temp Range · Fall
3 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I 012101f7ff647765
STATION Parma Experiment Station
GHCND ID USC00106844
DATE 1926-09-27 · Fall · Day 270 of 1926
TMAX 75°F
TMIN 21°F
TRANGE 54°F
ZONE snake_river_corridor
COUNTY canyon
ELEVATION 698.0m · Snake River Corridor
COORDINATES 43.8023°N, -116.9442°W
SOURCE TIER TIER 1 — PRIMARY FEDERAL SOURCE — NOAA GHCND
CONFIDENCE 0.95
EVENT FLAGSHARD FREEZE
◈ DUAL PROVENANCE STAMP — INTERNAL NODE + EXTERNAL SOURCE LAW I · LAW II
SOURCE ORG NOAA National Centers for Environmental Information — GHCND
RECORD ID 012101f7ff647765
INGESTED 2026-07-14T16:30:50 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH 76bf91334844b920
◈ STATION CONTEXT — PARMA MICROCLIMATE · SNAKE RIVER CORRIDOR
STATION DESC USDA agricultural research station on the Snake River corridor with records back to 1922 — the deepest historical record in the dataset. At 698 meters, 162 meters below KBOI, this station captures cold air drainage and frost events critical to the Treasure Valley agricultural calendar.
RECORD SINCE 1922 — 1926 is year 5 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1926-09-27 at Parma Experiment Station (Snake River Corridor, canyon, 698.0m elevation), the daily high temperature was 75°F and the daily low was 21°F, a diurnal range of 54°F. Season: Fall. Day 270 of 1926. This date recorded a hard freeze event (tmin ≤ 28°F). 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: 012101f7ff647765.

◈ GRAPH EDGES — 3 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_TEMPORAL_SERIES Parma · 1926-09-26 · High: 73°F Low: 22°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Parma · 1926-09-28 · High: 75°F Low: 28°F · conf=1.00 · T2·DET
WEATHER_TO_AGRICULTURE Agriculture vertical anchor — frost/freeze event · conf=0.95 · T2·DET
Provenance
NOAA National Centers for Environmental Information — GHCND boise-standard-weather-v1.0.0 012101f7ff647765 /treasure-valley/data/weather/parma/1926/09/27/ 76bf91334844b920