What was the temperature at Idaho City on 1977-12-21?

On 1977-12-21, the daily high at Idaho City (Boise Basin, 3,970 ft, Boise County, Idaho) was 30°F and the daily low was 0°F. Source: NOAA GHCND. Pipeline: idahocity-weather-v2.0.0.

Idaho City Weather — December 21, 1977

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

On 1977-12-21 at Idaho City (Boise Basin, 3,970 ft elevation, Boise County, Idaho), the daily high temperature was 30°F and the daily low was 0°F, a diurnal range of 30°F. Season: Winter. Day 355 of 1977.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: 6acb6d43c9214f76 · Hash: 193966f6050c14f9

30°F

Daily High (TMAX)

0°F

Daily Low (TMIN)

30°F

Temp Range

Graph Edges

◈ Primary Source Record · NOAA GHCND · Tier 1

Station

Idaho City

GHCND ID

USC00104442

Date

1977-12-21 · Winter · Day 355 of 1977

High (TMAX)

30°F

Low (TMIN)

0°F

Range

30°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

6acb6d43c9214f76

Content Hash

193966f6050c14f9

Ingested

2026-07-25T14:45:07 UTC

Pipeline

idahocity-weather-v2.0.0

◈ Graph Edges — 4 Connections · Tier 2 · Deterministic

WEATHER_CROSS_STATION

1977-12-21 | KBOI(860.5m) → USC00104442(1207.0m) | Δelev=346m

conf=0.92 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Idaho City · 1977-12-20 · Hi:32°F Lo:-2°F

conf=1.00 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Idaho City · 1977-12-22 · Hi:29°F Lo:15°F

conf=1.00 · tier-2 · deterministic

WEATHER_EXTREME_EVENT

Phenomenon: phenomenon hard cold 1977

conf=0.99 · tier-2 · deterministic

Idaho City — December 21, 1977