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

Idaho City — January 21, 1990

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

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

On 1990-01-21 at Idaho City (Boise Basin, 3,970 ft elevation, Boise County, Idaho), the daily high temperature was 38°F and the daily low was 9°F, a diurnal range of 29°F. Season: Winter. Day 21 of 1990.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: 0cee378cc62b6751 · Hash: d2b00eed1b0785fa
38°F
Daily High (TMAX)
9°F
Daily Low (TMIN)
29°F
Temp Range
4
Graph Edges
◈ Primary Source Record · NOAA GHCND · Tier 1
Station
Idaho City
GHCND ID
USC00104442
Date
1990-01-21 · Winter · Day 21 of 1990
High (TMAX)
38°F
Low (TMIN)
9°F
Range
29°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
0cee378cc62b6751
Content Hash
d2b00eed1b0785fa
Ingested
2026-07-25T14:45:07 UTC
Pipeline
idahocity-weather-v2.0.0
◈ Graph Edges — 4 Connections · Tier 2 · Deterministic
WEATHER_CROSS_STATION
1990-01-21 | KBOI(860.5m) → USC00104442(1207.0m) | Δelev=346m
conf=0.92 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Idaho City · 1990-01-20 · Hi:37°F Lo:9°F
conf=1.00 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Idaho City · 1990-01-22 · Hi:38°F Lo:9°F
conf=1.00 · tier-2 · deterministic
WEATHER_EXTREME_EVENT
Phenomenon: phenomenon hard cold 1990
conf=0.99 · tier-2 · deterministic
◈ Provenance · Sources · Knowledge Graph Context
Every Source. Declared. Permanent.