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

Idaho City — September 14, 1969FROST 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 1969-09-14 at Idaho City (Boise Basin, 3,970 ft elevation, Boise County, Idaho), the daily high temperature was 75°F and the daily low was 33°F, a diurnal range of 42°F. Season: Fall. Day 257 of 1969. This date recorded a frost event (low ≤ 36°F) during the growing season.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: 4246503c9dfd20cf · Hash: ae15c12c7070c936
75°F
Daily High (TMAX)
33°F
Daily Low (TMIN)
42°F
Temp Range
3
Graph Edges
◈ Primary Source Record · NOAA GHCND · Tier 1
Station
Idaho City
GHCND ID
USC00104442
Date
1969-09-14 · Fall · Day 257 of 1969
High (TMAX)
75°F
Low (TMIN)
33°F
Range
42°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
4246503c9dfd20cf
Content Hash
ae15c12c7070c936
Ingested
2026-07-25T14:45:07 UTC
Pipeline
idahocity-weather-v2.0.0
◈ Graph Edges — 3 Connections · Tier 2 · Deterministic
WEATHER_CROSS_STATION
1969-09-14 | KBOI(860.5m) → USC00104442(1207.0m) | Δelev=346m
conf=0.92 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Idaho City · 1969-09-13 · Hi:77°F Lo:43°F
conf=1.00 · tier-2 · deterministic
WEATHER_TEMPORAL_SERIES
Idaho City · 1969-09-15 · Hi:72°F Lo:26°F
conf=1.00 · tier-2 · deterministic
◈ Provenance · Sources · Knowledge Graph Context
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