What was the temperature at Idaho City on 1999-04-18?

On 1999-04-18, the daily high at Idaho City (Boise Basin, 3,970 ft, Boise County, Idaho) was 71°F and the daily low was 31°F. Source: NOAA GHCND. Pipeline: idahocity-weather-v2.0.0.

Idaho City Weather — April 18, 1999

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

On 1999-04-18 at Idaho City (Boise Basin, 3,970 ft elevation, Boise County, Idaho), the daily high temperature was 71°F and the daily low was 31°F, a diurnal range of 40°F. Season: Spring. Day 108 of 1999. This date recorded a frost event (low ≤ 36°F) during the growing season.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: 2ba5fc11e0176f2a · Hash: e3bb5a9846c43116

71°F

Daily High (TMAX)

31°F

Daily Low (TMIN)

40°F

Temp Range

Graph Edges

◈ Primary Source Record · NOAA GHCND · Tier 1

Station

Idaho City

GHCND ID

USC00104442

Date

1999-04-18 · Spring · Day 108 of 1999

High (TMAX)

71°F

Low (TMIN)

31°F

Range

40°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

2ba5fc11e0176f2a

Content Hash

e3bb5a9846c43116

Ingested

2026-07-25T14:45:07 UTC

Pipeline

idahocity-weather-v2.0.0

◈ Graph Edges — 3 Connections · Tier 2 · Deterministic

WEATHER_CROSS_STATION

1999-04-18 | KBOI(860.5m) → USC00104442(1207.0m) | Δelev=346m

conf=0.92 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Idaho City · 1999-04-17 · Hi:67°F Lo:25°F

conf=1.00 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Idaho City · 1999-04-19 · Hi:72°F Lo:39°F

conf=1.00 · tier-2 · deterministic

Idaho City — April 18, 1999FROST EVENT