STATION
Parma Experiment Station
GHCND ID
USC00106844
DATE
1970-04-21 · Spring · Day 111 of 1970
TMAX
51°F
TMIN
23°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
SOURCE ORG
NOAA National Centers for Environmental Information — GHCND
RECORD ID
02a1b2afe6d2d5cd
INGESTED
2026-07-14T16:30:50 UTC
PIPELINE
boise-standard-weather-v1.0.0
CONTENT HASH
e3bb851b3301855a
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 — 1970 is year 49 of record
On 1970-04-21 at
Parma Experiment Station
(Snake River Corridor, canyon, 698.0m elevation),
the daily high temperature was 51°F
and the daily low was 23°F,
a diurnal range of 28°F.
Season: Spring.
Day 111 of 1970. 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: 02a1b2afe6d2d5cd.
