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

Idaho City — October 15, 1974HARD FREEZE

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

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

On 1974-10-15 at Idaho City (Boise Basin, 3,970 ft elevation, Boise County, Idaho), the daily high temperature was 72°F and the daily low was 26°F, a diurnal range of 46°F. Season: Fall. Day 288 of 1974. This date recorded a hard freeze (low ≤ 28°F) during the growing season.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: dacf4a01e39146bd · Hash: 421dc5afcd5d6768
72°F
Daily High (TMAX)
26°F
Daily Low (TMIN)
46°F
Temp Range
5
Graph Edges
◈ Primary Source Record · NOAA GHCND · Tier 1
Station
Idaho City
GHCND ID
USC00104442
Date
1974-10-15 · Fall · Day 288 of 1974
High (TMAX)
72°F
Low (TMIN)
26°F
Range
46°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
dacf4a01e39146bd
Content Hash
421dc5afcd5d6768
Ingested
2026-07-25T14:45:07 UTC
Pipeline
idahocity-weather-v2.0.0
◈ Graph Edges — 5 Connections · Tier 2 · Deterministic
WEATHER_CROSS_STATION
1974-10-15 | KBOI(860.5m) → USC00104442(1207.0m) | Δelev=346m
conf=0.92 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Idaho City · 1974-10-14 · Hi:69°F Lo:26°F
conf=1.00 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Idaho City · 1974-10-16 · Hi:74°F Lo:28°F
conf=1.00 · tier-2 · deterministic
WEATHER_SEASONAL_PATTERN
WEATHER_SEASONAL_PATTERN
◈ Provenance · Sources · Knowledge Graph Context
Every Source. Declared. Permanent.