Home / Castle Shannon / 9 September 2018

Castle Shannon

United States · 9 September 2018

← 8 September 201810 September 2018 →

Average

13.9°C

low 12.3° · high 14.9°

Rainfall

95.6mm

rain recorded

Wind

5.2m/s

daily average

Humidity

94.8%

daily average

Cloud

100%

cover

Pressure

1016hPa

daily average

The temperature ranged from 12.3°C around 02:00 to 14.9°C around 14:00. Rain was recorded across 24 hours, from around 00:00 to 23:00 (95.6mm total).

How unusual was this day?

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

High temperature

0th percentile

Low temperature

27th percentile

Rainfall

100th percentile

Wind

100th 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 20°C, versus 13.9°C on this specific day.

Sun & daylight

Sunrise

06:55

Sunset

19:38

Day length

12h 44m

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
00:0004:0012.810.51.64.4ENE971020
01:0005:0012.610.21.494.4ENE971020
02:0006:0012.39.51.384.7ENE961019
03:0007:0012.49.61.414.9ENE951018
04:0008:0012.810.11.564.7E951018
05:0009:0012.69.92.484.7E961017
06:0010:0013.3113.854.3E941017
07:0011:0013.4115.784.6E951016
08:0012:0013.611.16.64.8E951016
09:0013:0013.811.37.114.8E951016
10:0014:0014.111.57.175.2E941016
11:0015:0014.7126.475.4E941016
12:0016:0014.812.16.675.6E951016
13:0017:0014.611.98.095.6E951016
14:0018:0014.912.48.295.3E951015
15:0019:0014.712.44.625.1ESE951015
16:0020:0014.411.84.765.2ESE951015
17:0021:0014.5124.265.4E981015
18:0022:0014.812.74.024.6E931015
19:0023:0014.712.22.985.2E931014
20:0000:0014.711.51.446.1ESE931014
21:0001:0014.711.21.336.5ESE931014
22:0002:0014.711.11.326.8ESE941014
23:0003:0014.711.60.96.2ESE941015

Need this verified for an official or legal purpose? Request a weather verification report.

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
Castle Shannon — 40.250°, -80.000°, ERA5 grid cell center, 12.9 km from requested point
Time zone
America/New_York
What's shown here
The hourly and daily record for 9 September 2018 specifically — not a monthly average. See the Castle Shannon 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 Castle Shannon, United States (40.25°N, 80.00°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 Castle Shannon, 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 Castle Shannon, 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 Castle Shannon, 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/}
}

Notice something wrong with this data? Report a data issue.