Portland Intl
Weather station · 43.6°N 70.3°W · 15 m above sea level
ICAO KPWMWMO 72606Station data since 1940
Record high
31.7°C
in 2019
Record low
−0.6°C
in 1955
Average high
19.6°C
all years on record
21.1°C short of the record for 23 September
Today’s high 10.6°C against 31.7°C in 2019. A reading that beats it is flagged here automatically, once a second cycle confirms it.
All-time record high
39.4°C
- Date
- Saturday, 2 August 1975
- Time of day
- Not recorded. The daily archive stores the day, not the hour.
- Location
- Portland Intl, United States
- Position
- 43.64°N 70.30°W · 15 m
Highest highest in available records since 1940. Source: NOAA GHCN-Daily.
All-time record low
−39.4°C
- Date
- Tuesday, 16 February 1943
- Time of day
- Not recorded. The daily archive stores the day, not the hour.
- Location
- Portland Intl, United States
- Position
- 43.64°N 70.30°W · 15 m
Highest and lowest lowest in available records since 1940. Source: NOAA GHCN-Daily.
Where Portland Intl is
43.64°N 70.30°W
Every year on record
1940 to 2026
Annual average · °C
Trend over 85 years with data: +0.11 °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
19.4°
−32.2°
Feb
20.0°
−39.4°
Mar
31.1°
−29.4°
Apr
33.3°
−13.3°
May
34.4°
−5.0°
Jun
37.2°
0.6°
Jul
37.8°
4.4°
Aug
39.4°
0.6°
Sep
35.0°
Recent days
| Day | High | At | Low | At |
|---|---|---|---|---|
| 2026-09-23 | 10.6°C | 00:51 UTC | 6.7°C | 06:51 UTC |
| 2026-09-22 | 17.8°C | 18:51 UTC | 12.2°C | 23:51 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 |
