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Historical Weather · Boise River Basin · idahocity-weather-v2.0.0

Arrowrock Dam — April 13, 1987FROST EVENT

Arrowrock Dam · 3,241 ft · Boise River Basin · Boise County, Idaho

◈ Atomic Answer · NOAA GHCND · Tier 1 Primary Source · idahocity-weather-v2.0.0

On 1987-04-13 at Arrowrock Dam (Boise River Basin, 3,241 ft elevation, Boise County, Idaho), the daily high temperature was 52°F and the daily low was 29°F, a diurnal range of 23°F. Season: Spring. Day 103 of 1987. This date recorded a frost event (low ≤ 36°F) during the growing season.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: 0c349ae7d3dec4ab · Hash: 8f03c5b6f493ed23
52°F
Daily High (TMAX)
29°F
Daily Low (TMIN)
23°F
Temp Range
3
Graph Edges
◈ Primary Source Record · NOAA GHCND · Tier 1
Station
Arrowrock Dam
GHCND ID
USC00100448
Date
1987-04-13 · Spring · Day 103 of 1987
High (TMAX)
52°F
Low (TMIN)
29°F
Range
23°F
Zone
Boise River Basin
Elevation
3,241 ft · 988 m
Coordinates
43.6°N, 115.9167°W
Geography
boise_county
Source Tier
Tier 1 — Primary Federal Source — NOAA GHCND
Confidence
0.95
Record ID
0c349ae7d3dec4ab
Content Hash
8f03c5b6f493ed23
Ingested
2026-07-25T14:45:12 UTC
Pipeline
idahocity-weather-v2.0.0
◈ Graph Edges — 3 Connections · Tier 2 · Deterministic
WEATHER_CROSS_STATION
1987-04-13 | KBOI(860.5m) → USC00100448(988.0m) | Δelev=128m
conf=0.81 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Arrowrock Dam · 1987-04-12 · Hi:48°F Lo:26°F
conf=1.00 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Arrowrock Dam · 1987-04-14 · Hi:64°F Lo:29°F
conf=1.00 · tier-2 · deterministic
◈ Provenance · Sources · Knowledge Graph Context
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