What was the temperature at Idaho City on 1987-05-20?

On 1987-05-20, the daily high at Idaho City (Boise Basin, 3,970 ft, Boise County, Idaho) was 66°F and the daily low was 27°F. Source: NOAA GHCND. Pipeline: idahocity-weather-v2.0.0.

Idaho City Weather — May 20, 1987

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

On 1987-05-20 at Idaho City (Boise Basin, 3,970 ft elevation, Boise County, Idaho), the daily high temperature was 66°F and the daily low was 27°F, a diurnal range of 39°F. Season: Spring. Day 140 of 1987. This date recorded a hard freeze (low ≤ 28°F) during the growing season.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: 376436129cb79369 · Hash: 4a91067d1c269be3

66°F

Daily High (TMAX)

27°F

Daily Low (TMIN)

39°F

Temp Range

Graph Edges

◈ Primary Source Record · NOAA GHCND · Tier 1

Station

Idaho City

GHCND ID

USC00104442

Date

1987-05-20 · Spring · Day 140 of 1987

High (TMAX)

66°F

Low (TMIN)

27°F

Range

39°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

376436129cb79369

Content Hash

4a91067d1c269be3

Ingested

2026-07-25T14:45:07 UTC

Pipeline

idahocity-weather-v2.0.0

◈ Graph Edges — 3 Connections · Tier 2 · Deterministic

WEATHER_CROSS_STATION

1987-05-20 | KBOI(860.5m) → USC00104442(1207.0m) | Δelev=346m

conf=0.92 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Idaho City · 1987-05-19 · Hi:69°F Lo:31°F

conf=1.00 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Idaho City · 1987-05-21 · Hi:61°F Lo:28°F

conf=1.00 · tier-2 · deterministic

Idaho City — May 20, 1987HARD FREEZE