STATION
Boise Lucky Peak Dam
GHCND ID
USC00101018
DATE
1977-05-20 · Spring · Day 140 of 1977
TMAX
71°F
TMIN
35°F
TRANGE
36°F
ZONE
canyon_east
COUNTY
ada
ELEVATION
865.6m · Canyon East
COORDINATES
43.5253°N, -116.0542°W
SOURCE TIER
TIER 1 — PRIMARY FEDERAL SOURCE — NOAA GHCND
CONFIDENCE
0.95
EVENT FLAGSFROST EVENT
SOURCE ORG
NOAA National Centers for Environmental Information — GHCND
RECORD ID
ef90cec360c3da61
INGESTED
2026-07-14T16:30:58 UTC
PIPELINE
boise-standard-weather-v1.0.0
CONTENT HASH
f64265e3b72d078b
STATION DESC
Eastern Ada County at the Boise River canyon mouth. Records back to 1951. Captures the canyon east microclimate — influenced by mountain air drainage from the Boise Range. Army Corps of Engineers water management context.
RECORD SINCE
1951 — 1977 is year 27 of record
On 1977-05-20 at
Boise Lucky Peak Dam
(Canyon East, ada, 865.6m elevation),
the daily high temperature was 71°F
and the daily low was 35°F,
a diurnal range of 36°F.
Season: Spring.
Day 140 of 1977. 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: ef90cec360c3da61.
