What was the temperature at Arrowrock Dam on 1986-05-15?

On 1986-05-15, the daily high at Arrowrock Dam (Boise River Basin, 3,241 ft, Boise County, Idaho) was 57°F and the daily low was 32°F. Source: NOAA GHCND. Pipeline: idahocity-weather-v2.0.0.

Arrowrock Dam Weather — May 15, 1986

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

On 1986-05-15 at Arrowrock Dam (Boise River Basin, 3,241 ft elevation, Boise County, Idaho), the daily high temperature was 57°F and the daily low was 32°F, a diurnal range of 25°F. Season: Spring. Day 135 of 1986. This date recorded a frost event (low ≤ 36°F) during the growing season.

Source: NOAA National Centers for Environmental Information — GHCND · Record ID: 6b094c6f762808ab · Hash: 62121b959ac5e192

57°F

Daily High (TMAX)

32°F

Daily Low (TMIN)

25°F

Temp Range

Graph Edges

◈ Primary Source Record · NOAA GHCND · Tier 1

Station

Arrowrock Dam

GHCND ID

USC00100448

Date

1986-05-15 · Spring · Day 135 of 1986

High (TMAX)

57°F

Low (TMIN)

32°F

Range

25°F

Zone

Boise River Basin

Elevation

3,241 ft · 988 m

Coordinates

43.6°N, 115.9167°W

Geography

boise_county

Source Tier

Tier 1 — Primary Federal Source — NOAA GHCND

Confidence

0.95

Record ID

6b094c6f762808ab

Content Hash

62121b959ac5e192

Ingested

2026-07-25T14:45:12 UTC

Pipeline

idahocity-weather-v2.0.0

◈ Graph Edges — 5 Connections · Tier 2 · Deterministic

WEATHER_CROSS_STATION

1986-05-15 | KBOI(860.5m) → USC00100448(988.0m) | Δelev=128m

conf=0.81 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Arrowrock Dam · 1986-05-14 · Hi:65°F Lo:32°F

conf=1.00 · tier-2 · deterministic

WEATHER_TEMPORAL_SERIES

Arrowrock Dam · 1986-05-16 · Hi:58°F Lo:35°F

conf=1.00 · tier-2 · deterministic

WEATHER_SEASONAL_PATTERN

Arrowrock Dam · 1985-05-15 · same month, consecutive year

conf=0.90 · tier-2 · deterministic

WEATHER_SEASONAL_PATTERN

Arrowrock Dam · 1987-05-15 · same month, consecutive year

conf=0.90 · tier-2 · deterministic

Arrowrock Dam — May 15, 1986FROST EVENT