What was the temperature at Idaho City on 1999-09-17?

On 1999-09-17, the daily high at Idaho City (Boise Basin, 3,970 ft, Boise County, Idaho) was 87°F and the daily low was 35°F. Source: NOAA GHCND. Pipeline: idahocity-weather-v2.0.0.

Idaho City Weather — September 17, 1999

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

On 1999-09-17 at Idaho City (Boise Basin, 3,970 ft elevation, Boise County, Idaho), the daily high temperature was 87°F and the daily low was 35°F, a diurnal range of 52°F. Season: Fall. Day 260 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: dcc0c4d0297506bf · Hash: ab7d96a350d6bb03

87°F

Daily High (TMAX)

35°F

Daily Low (TMIN)

52°F

Temp Range

Graph Edges

◈ Primary Source Record · NOAA GHCND · Tier 1

Station

Idaho City

GHCND ID

USC00104442

Date

1999-09-17 · Fall · Day 260 of 1999

High (TMAX)

87°F

Low (TMIN)

35°F

Range

52°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

dcc0c4d0297506bf

Content Hash

ab7d96a350d6bb03

Ingested

2026-07-25T14:45:07 UTC

Pipeline

idahocity-weather-v2.0.0

◈ Graph Edges — 3 Connections · Tier 2 · Deterministic

WEATHER_CROSS_STATION

1999-09-17 | KBOI(860.5m) → USC00104442(1207.0m) | Δelev=346m

conf=0.92 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Idaho City · 1999-09-16 · Hi:84°F Lo:35°F

conf=1.00 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Idaho City · 1999-09-18 · Hi:87°F Lo:39°F

conf=1.00 · tier-2 · deterministic

Idaho City — September 17, 1999FROST EVENT