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Donora

United States · 7 September 2016

DonoraUnited States9:30 AM localChange location
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Average

24.6°C

low 20.3°C · high 30.6°C

Rainfall

13.8mm

rain recorded

Wind

2.3m/s

daily average

Humidity

81.2%

daily average

Cloud

63%

cover

Pressure

1018hPa

daily average

The temperature ranged from 20.3°C around 07:00 to 30.6°C around 17:00. Rain was recorded across 12 hours, from around 02:00 to 23:00 (13.8mm total).

How unusual was this day?

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

High temperature

90th percentile

Low temperature

89th percentile

Rainfall

93th percentile

Wind

56th 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 20.1°C, versus 24.6°C on this specific day.

Sun & daylight

Sunrise

06:52

Sunset

19:40

Day length

12h 47m

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 timeUTCTempFeelsRain mmWind m/sDirHumidity %Pressure hPa
00:0004:0022.8°C25.3°C0.021.9SW851019
01:0005:0022.1°C24.6°C0.031.9SW881018
02:0006:0021.2°C23.4°C0.121.9WSW911018
03:0007:0021.1°C23.2°C01.9WSW901019
04:0008:0021°C23.2°C0.071.7SW901019
05:0009:0020.8°C22.8°C01.7SW901019
06:0010:0020.6°C23.3°C0.161.1W931018
07:0011:0020.3°C21.6°C0.252.8W921020
08:0012:0021°C23.4°C0.261.5SW911020
09:0013:0021.9°C24.8°C0.231.6SW931020
10:0014:0023.7°C26.7°C0.262.3WSW891020
11:0015:0025.9°C28.1°C0.052.8W741020
12:0016:0027.2°C30.2°C0.042.3W731020
13:0017:0028.2°C31.3°C0.022.2W691019
14:0018:0028.9°C31.9°C0.032.6W671018
15:0019:0029.1°C31.7°C0.033W661017
16:0020:0030.4°C32.8°C0.013.2W601017
17:0021:0030.6°C32.3°C0.013.2W551016
18:0022:0029.5°C32.9°C1.281.9WSW641016
19:0023:0027.2°C30.8°C2.882.1SW771016
20:0000:0025.3°C28.1°C3.063SW831016
21:0001:0024.9°C27.3°C1.753.3SW851017
22:0002:0024.2°C26.6°C1.863.5SW891017
23:0003:0023.3°C26.3°C1.422.9SW961017

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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
Donora — 40.250°, -79.750°, ERA5 grid cell center, 12.5 km from requested point
Time zone
America/New_York
What's shown here
The hourly and daily record for 7 September 2016 specifically — not a monthly average. See the Donora 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 (2026-07-19). Historical climate data for Donora, United States (40.25°N, 79.75°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 Donora, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 19, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Donora, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 19, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Donora, United States},
  year = {2026},
  note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-19},
  url = {https://www.pastclimate.com/}
}

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