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

Parma — April 07, 1999HARD FREEZE

WEATHER RECORD · PARMA · 1999-04-07 · boise-standard-weather-v1.0.0
HI 60°F · LO 26°F · RNG 34°F · 4 edges
60°F Daily High (TMAX)
26°F Daily Low (TMIN)
34°F Temp Range · Spring
4 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I d57502463983c203
STATION Parma Experiment Station
GHCND ID USC00106844
DATE 1999-04-07 · Spring · Day 97 of 1999
TMAX 60°F
TMIN 26°F
TRANGE 34°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 d57502463983c203
INGESTED 2026-07-14T16:30:50 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH 68d2686acd02ae99
◈ 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 — 1999 is year 78 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1999-04-07 at Parma Experiment Station (Snake River Corridor, canyon, 698.0m elevation), the daily high temperature was 60°F and the daily low was 26°F, a diurnal range of 34°F. Season: Spring. Day 97 of 1999. 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: d57502463983c203.

◈ GRAPH EDGES — 4 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION KBOI · 1999-04-07 · High: 62°F Low: 33°F · Elev: 860.5m · conf=0.83 · T2·DET
WEATHER_TEMPORAL_SERIES Parma · 1999-04-06 · High: 51°F Low: 36°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Parma · 1999-04-08 · High: 65°F Low: 44°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 d57502463983c203 /treasure-valley/data/weather/parma/1999/04/07/ 68d2686acd02ae99