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

Parma — October 20, 1949HARD FREEZE

WEATHER RECORD · PARMA · 1949-10-20 · boise-standard-weather-v1.0.0
HI 55°F · LO 27°F · RNG 28°F · 4 edges
55°F Daily High (TMAX)
27°F Daily Low (TMIN)
28°F Temp Range · Fall
4 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I 7d97f7894aa93139
STATION Parma Experiment Station
GHCND ID USC00106844
DATE 1949-10-20 · Fall · Day 293 of 1949
TMAX 55°F
TMIN 27°F
TRANGE 28°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 7d97f7894aa93139
INGESTED 2026-07-14T16:30:50 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH 71438078caef4edd
◈ 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 — 1949 is year 28 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1949-10-20 at Parma Experiment Station (Snake River Corridor, canyon, 698.0m elevation), the daily high temperature was 55°F and the daily low was 27°F, a diurnal range of 28°F. Season: Fall. Day 293 of 1949. 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: 7d97f7894aa93139.

◈ GRAPH EDGES — 4 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION KBOI · 1949-10-20 · High: 50°F Low: 30°F · Elev: 860.5m · conf=0.83 · T2·DET
WEATHER_TEMPORAL_SERIES Parma · 1949-10-19 · High: 43°F Low: 29°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Parma · 1949-10-21 · High: 64°F Low: 27°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 7d97f7894aa93139 /treasure-valley/data/weather/parma/1949/10/20/ 71438078caef4edd