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

Parma — September 28, 1964FROST EVENT

WEATHER RECORD · PARMA · 1964-09-28 · boise-standard-weather-v1.0.0
HI 77°F · LO 35°F · RNG 42°F · 4 edges
77°F Daily High (TMAX)
35°F Daily Low (TMIN)
42°F Temp Range · Fall
4 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I 5e12a0a43857455b
STATION Parma Experiment Station
GHCND ID USC00106844
DATE 1964-09-28 · Fall · Day 272 of 1964
TMAX 77°F
TMIN 35°F
TRANGE 42°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 FLAGSFROST EVENT
◈ DUAL PROVENANCE STAMP — INTERNAL NODE + EXTERNAL SOURCE LAW I · LAW II
SOURCE ORG NOAA National Centers for Environmental Information — GHCND
RECORD ID 5e12a0a43857455b
INGESTED 2026-07-14T16:30:50 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH b287a70a92d15348
◈ 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 — 1964 is year 43 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1964-09-28 at Parma Experiment Station (Snake River Corridor, canyon, 698.0m elevation), the daily high temperature was 77°F and the daily low was 35°F, a diurnal range of 42°F. Season: Fall. Day 272 of 1964. 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: 5e12a0a43857455b.

◈ GRAPH EDGES — 4 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION KBOI · 1964-09-28 · High: 73°F Low: 40°F · Elev: 860.5m · conf=0.83 · T2·DET
WEATHER_TEMPORAL_SERIES Parma · 1964-09-27 · High: 73°F Low: 30°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Parma · 1964-09-29 · High: 79°F Low: 42°F · conf=1.00 · T2·DET
WEATHER_TO_AGRICULTURE Agriculture vertical anchor — frost/freeze event · conf=0.80 · T2·DET
Provenance
NOAA National Centers for Environmental Information — GHCND boise-standard-weather-v1.0.0 5e12a0a43857455b /treasure-valley/data/weather/parma/1964/09/28/ b287a70a92d15348