What was the temperature at Idaho City on 1970-10-21?

On 1970-10-21, the daily high at Idaho City (Boise Basin, 3,970 ft, Boise County, Idaho) was 47°F and the daily low was 28°F. Source: NOAA GHCND. Pipeline: idahocity-weather-v2.0.0.

Idaho City Weather — October 21, 1970

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

On 1970-10-21 at Idaho City (Boise Basin, 3,970 ft elevation, Boise County, Idaho), the daily high temperature was 47°F and the daily low was 28°F, a diurnal range of 19°F. Season: Fall. Day 294 of 1970. This date recorded a hard freeze (low ≤ 28°F) during the growing season.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: d617abd7a6c4e78a · Hash: af83f1535c4803bb

47°F

Daily High (TMAX)

28°F

Daily Low (TMIN)

19°F

Temp Range

Graph Edges

◈ Primary Source Record · NOAA GHCND · Tier 1

Station

Idaho City

GHCND ID

USC00104442

Date

1970-10-21 · Fall · Day 294 of 1970

High (TMAX)

47°F

Low (TMIN)

28°F

Range

19°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

d617abd7a6c4e78a

Content Hash

af83f1535c4803bb

Ingested

2026-07-25T14:45:07 UTC

Pipeline

idahocity-weather-v2.0.0

◈ Graph Edges — 3 Connections · Tier 2 · Deterministic

WEATHER_CROSS_STATION

1970-10-21 | KBOI(860.5m) → USC00104442(1207.0m) | Δelev=346m

conf=0.92 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Idaho City · 1970-10-20 · Hi:57°F Lo:31°F

conf=1.00 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Idaho City · 1970-10-22 · Hi:47°F Lo:32°F

conf=1.00 · tier-2 · deterministic

Idaho City — October 21, 1970HARD FREEZE