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

Parma — April 16, 1971FROST EVENT

WEATHER RECORD · PARMA · 1971-04-16 · boise-standard-weather-v1.0.0
HI 61°F · LO 31°F · RNG 30°F · 4 edges
61°F Daily High (TMAX)
31°F Daily Low (TMIN)
30°F Temp Range · Spring
4 Graph Edges
◈ PRIMARY SOURCE RECORD · TIER 1 · NOAA GHCND · LAW I ff7cdf6787768a16
STATION Parma Experiment Station
GHCND ID USC00106844
DATE 1971-04-16 · Spring · Day 106 of 1971
TMAX 61°F
TMIN 31°F
TRANGE 30°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 ff7cdf6787768a16
INGESTED 2026-07-14T16:30:50 UTC
PIPELINE boise-standard-weather-v1.0.0
CONTENT HASH f883691b1e77c865
◈ 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 — 1971 is year 50 of record
◈ ATOMIC ANSWER — WHAT AI READS ABOUT THIS RECORD

On 1971-04-16 at Parma Experiment Station (Snake River Corridor, canyon, 698.0m elevation), the daily high temperature was 61°F and the daily low was 31°F, a diurnal range of 30°F. Season: Spring. Day 106 of 1971. 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: ff7cdf6787768a16.

◈ GRAPH EDGES — 4 CONNECTIONSDETERMINISTIC · TIER 2
WEATHER_CROSS_STATION KBOI · 1971-04-16 · High: 62°F Low: 34°F · Elev: 860.5m · conf=0.83 · T2·DET
WEATHER_TEMPORAL_SERIES Parma · 1971-04-15 · High: 75°F Low: 46°F · conf=1.00 · T2·DET
WEATHER_TEMPORAL_SERIES Parma · 1971-04-17 · High: 65°F Low: 35°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 ff7cdf6787768a16 /treasure-valley/data/weather/parma/1971/04/16/ f883691b1e77c865