IC
Idaho City
Boise County · Est. 1862
◈ MACHINE ACCESS
Historical Weather · Boise Basin · idahocity-weather-v2.0.0

Idaho City — April 08, 1989FROST EVENT

Idaho City · 3,970 ft · Boise Basin · Boise County, Idaho

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

On 1989-04-08 at Idaho City (Boise Basin, 3,970 ft elevation, Boise County, Idaho), the daily high temperature was 67°F and the daily low was 29°F, a diurnal range of 38°F. Season: Spring. Day 98 of 1989. This date recorded a frost event (low ≤ 36°F) during the growing season.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: 799e597adf509bbf · Hash: 145b921b9b574f8b
67°F
Daily High (TMAX)
29°F
Daily Low (TMIN)
38°F
Temp Range
3
Graph Edges
◈ Primary Source Record · NOAA GHCND · Tier 1
Station
Idaho City
GHCND ID
USC00104442
Date
1989-04-08 · Spring · Day 98 of 1989
High (TMAX)
67°F
Low (TMIN)
29°F
Range
38°F
Zone
Boise Basin
Elevation
3,970 ft · 1,210 m
Coordinates
43.8333°N, 115.8333°W
Geography
idaho_city
Source Tier
Tier 1 — Primary Federal Source — NOAA GHCND
Confidence
0.95
Record ID
799e597adf509bbf
Content Hash
145b921b9b574f8b
Ingested
2026-07-25T14:45:07 UTC
Pipeline
idahocity-weather-v2.0.0
◈ Graph Edges — 3 Connections · Tier 2 · Deterministic
WEATHER_CROSS_STATION
1989-04-08 | KBOI(860.5m) → USC00104442(1207.0m) | Δelev=346m
conf=0.92 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Idaho City · 1989-04-07 · Hi:71°F Lo:29°F
conf=1.00 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Idaho City · 1989-04-09 · Hi:62°F Lo:24°F
conf=1.00 · tier-2 · deterministic
◈ Provenance · Sources · Knowledge Graph Context
Every Source. Declared. Permanent.