Dillon Arpt
Weather station · 45.3°N 112.6°W · 1586 m above sea level
ICAO KDLNWMO 72770Station data since 1940
Record high
31.1°C
in 1987
Record low
−5.6°C
in 2000
Average high
19.6°C
all years on record
13.9°C short of the record for 23 September
Today’s high 17.2°C against 31.1°C in 1987. A reading that beats it is flagged here automatically, once a second cycle confirms it.
All-time record high
38.9°C
- Date
- Monday, 12 August 1940
- Time of day
- Not recorded. The daily archive stores the day, not the hour.
- Location
- Dillon Arpt, United States
- Position
- 45.26°N 112.55°W · 1586 m
Highest highest in available records since 1940. Source: NOAA GHCN-Daily.
All-time record low
−40.5°C
- Date
- Saturday, 13 January 2024
- Time of day
- Not recorded. The daily archive stores the day, not the hour.
- Location
- Dillon Arpt, United States
- Position
- 45.26°N 112.55°W · 1586 m
Highest and lowest lowest in available records since 1940. Source: NOAA GHCN-Daily.
Where Dillon Arpt is
45.26°N 112.55°W
Every year on record
1940 to 2026
Annual average · °C
Trend over 79 years with data: +0.02 °C per decade
Source: NOAA GHCN-Daily. Years the station did not cover are left as gaps, never joined across. The dashed line is a least squares trend through the years that have data.
Records by month
Jan
14.4°
−40.5°
Feb
17.8°
−36.7°
Mar
26.1°
−30.5°
Apr
29.4°
−20.6°
May
32.2°
−10.0°
Jun
36.7°
−3.9°
Jul
38.9°
0.0°
Aug
38.9°
−1.1°
Sep
36.1°
Recent days
| Day | High | At | Low | At |
|---|---|---|---|---|
| 2026-09-23 | 17.2°C | 00:53 UTC | 11.7°C | 06:53 UTC |
| 2026-09-22 | 21.1°C | 20:53 UTC | 10.6°C | 14:53 UTC |
Nearby stations
Data sources for this page
| Figure | Source | Type |
|---|---|---|
| Right now, today so far | NOAA Aviation Weather Center (METAR) and NOAA NWS WMO bulletins (SYNOP) | Measured, station |
| All-time, monthly and on-this-day records | NOAA NCEI Global Historical Climatology Network daily (GHCN-Daily), 1940 to 2026 | Measured, station |
| Nearby stations and distances | Computed from station positions in our own database | Calculated |
