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Cabin John

United States · 9 July 2022

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Average

22°C

low 20.4° · high 25.6°

Rainfall

97.1mm

rain recorded

Wind

2.4m/s

daily average

Humidity

94.2%

daily average

Cloud

100%

cover

Pressure

1016hPa

daily average

The temperature ranged from 20.4°C around 15:00 to 25.6°C around 00:00. Rain was recorded across 19 hours, from around 00:00 to 18:00 (97.1mm total).

How unusual was this day?

Compared against the same 135 calendar days (±7 days) across the other 9 years on file.

High temperature

3th percentile

Low temperature

19th percentile

Rainfall

100th percentile

Wind

71th percentile

A percentile of 100 means this was the hottest/wettest/windiest of the comparable days on file; 50 is right in the middle. This window's average temperature was 26.9°C, versus 22°C on this specific day.

Sun & daylight

Sunrise

05:51

Sunset

20:36

Day length

14h 45m

Hour by hour

Temperature (line) and hourly rainfall (bars), local time — America/New_York.

↓ Download CSV
00:0006:0012:0018:0023:00

Cumulative rainfall through the day.

00:0006:0012:0018:0023:00
Local timeUTCTemp °CFeels °CRain mmWind m/sDirHumidity %Pressure hPa
00:0004:0025.629.60.541.4S821015
01:0005:0024.728.90.840.9W861015
02:0006:0023.628.31.530.4NNW931015
03:0007:0023.127.42.40.8NNE961015
04:0008:0022.926.33.741.7NE951014
05:0009:0022.425.33.742.5NE961014
06:0010:0022.524.86.143.3NE951015
07:0011:0022.624.99.573.3NE961015
08:0012:0022.725.115.742.9NE931016
09:0013:0022.42515.722.5NE941016
10:0014:0021.824.412.832.7NE981016
11:0015:0021.422.89.013.9NE971016
12:0016:0021.322.66.774.2NE991017
13:0017:0021.222.42.954.3NE991017
14:0018:0020.621.61.634.3NE1001017
15:0019:0020.421.51.874NE1001017
16:0020:0020.822.21.063.5NE991017
17:0021:0020.922.70.573.1ENE971017
18:0022:0021.223.80.331.6ENE931017
19:0023:0021.3240.081.2NNE911017
20:0000:0021.3240.011.2NNE901017
21:0001:0021.123.501.6NE911017
22:0002:0021.223.701.4NNE901018
23:0003:0020.723.201.4NNE921018

Same date, other years

202520242023202120202019201820172016

Nearby cities

Rockville

0km away, same day

Reston

0km away, same day

McLean

0km away, same day

Potomac

0km away, same day

Oakton

0km away, same day

North Potomac

0km away, same day

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Data source & coverage — ERA5 reanalysis, 2016–2025 (10 years)details
Source
ERA5 reanalysis, accessed via the Copernicus Climate Change Service (C3S) Climate Data Store
Data type
Reanalysis — a physically consistent reconstruction combining a forecast model with historical observations, not a live station reading or a forecast
Coverage
2016–2025 (10 years) for United States
Location
Cabin John — 39.000°, -77.250°, ERA5 grid cell center, 8.4 km from requested point
Time zone
America/New_York
What's shown here
The hourly and daily record for 9 July 2022 specifically — not a monthly average. See the Cabin John climate overview for typical conditions.
Spatial resolution
0.25° (~25 km) distributed grid — ERA5's native model resolution is finer; this is the publicly distributed regridded product
Version / refreshed
Methodology v2026.07 · data last refreshed December 31, 2025
Limitations
A model reconstruction, not a station observation — hyper-local extremes (a single storm cell, an urban heat pocket) can differ from a nearby gauge. See the full methodology.
Attribution
Generated using Copernicus Climate Change Service information

Cite this data

Plain text
PastClimate (2026-07-16). Historical climate data for Cabin John, United States (39.00°N, 77.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
APA
PastClimate. (2026). Historical climate data for Cabin John, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 16, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Cabin John, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 16, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Cabin John, United States},
  year = {2026},
  note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-16},
  url = {https://www.pastclimate.com/}
}

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