Washington/Reagan-National Arpt
Weather station · 38.8°N 77.0°W · 4 m above sea level
ICAO KDCAWMO 72405Station data since 1941
Record high
35.6°C
in 1970
Record low
6.7°C
in 1963
Average high
24.8°C
all years on record
18.9°C short of the record for 23 September
Today’s high 16.7°C against 35.6°C in 1970. A reading that beats it is flagged here automatically, once a second cycle confirms it.
All-time record high
40.6°C
- Date
- Sunday, 17 August 1997
- Time of day
- Not recorded. The daily archive stores the day, not the hour.
- Location
- Washington/Reagan-National Arpt, United States
- Position
- 38.85°N 77.03°W · 4 m
Highest highest in available records since 1941. Source: NOAA GHCN-Daily.
All-time record low
−20.6°C
- Date
- Sunday, 17 January 1982
- Time of day
- Not recorded. The daily archive stores the day, not the hour.
- Location
- Washington/Reagan-National Arpt, United States
- Position
- 38.85°N 77.03°W · 4 m
Highest and lowest lowest in available records since 1941. Source: NOAA GHCN-Daily.
Where Washington/Reagan-National Arpt is
38.85°N 77.03°W
Every year on record
1941 to 2026
Annual average · °C
Trend over 84 years with data: +0.18 °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
26.7°
−20.6°
Feb
27.8°
−15.6°
Mar
31.7°
−11.7°
Apr
35.0°
−4.4°
May
37.2°
1.1°
Jun
40.0°
8.3°
Jul
40.6°
12.2°
Aug
40.6°
9.4°
Sep
38.3°
Recent days
| Day | High | At | Low | At |
|---|---|---|---|---|
| 2026-09-23 | 16.7°C | 00:24 UTC | 14.4°C | 07:52 UTC |
| 2026-09-22 | 17.2°C | 17:52 UTC | 16.1°C | 15:20 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), 1941 to 2026 | Measured, station |
| Nearby stations and distances | Computed from station positions in our own database | Calculated |
