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

Parma — April 03, 1931HARD FREEZE

WEATHER RECORD · PARMA · 1931-04-03 · boise-standard-weather-v1.0.0
HI 59°F · LO 26°F · RNG 33°F · 3 edges
59°F Daily High (TMAX)
26°F Daily Low (TMIN)
33°F Temp Range · Spring
3 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I c2cac0583712227b
STATION Parma Experiment Station
GHCND ID USC00106844
DATE 1931-04-03 · Spring · Day 93 of 1931
TMAX 59°F
TMIN 26°F
TRANGE 33°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 c2cac0583712227b
INGESTED 2026-07-14T16:30:50 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH 5c928f160b4e250e
◈ 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 — 1931 is year 10 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1931-04-03 at Parma Experiment Station (Snake River Corridor, canyon, 698.0m elevation), the daily high temperature was 59°F and the daily low was 26°F, a diurnal range of 33°F. Season: Spring. Day 93 of 1931. 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: c2cac0583712227b.

◈ GRAPH EDGES — 3 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_TEMPORAL_SERIES Parma · 1931-04-02 · High: 53°F Low: 32°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Parma · 1931-04-04 · High: 67°F Low: 39°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 c2cac0583712227b /treasure-valley/data/weather/parma/1931/04/03/ 5c928f160b4e250e