Home / Lyons / 9 August 2017

Lyons

United States · 9 August 2017

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Average

21.1°C

low 15.8° · high 26.9°

Rainfall

0.4mm

dry day

Wind

2.3m/s

daily average

Humidity

71.2%

daily average

Cloud

31%

cover

Pressure

1021hPa

daily average

The temperature ranged from 15.8°C around 05:00 to 26.9°C around 15:00. Rain was recorded for one hour, around 17:00 (0.4mm total).

How unusual was this day?

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

High temperature

43th percentile

Low temperature

24th percentile

Rainfall

46th percentile

Wind

51th 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 22.6°C, versus 21.1°C on this specific day.

Sun & daylight

Sunrise

06:07

Sunset

20:18

Day length

14h 11m

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
00:0004:0017.315.503.6SW731020
01:0005:0016.61503.6SW801020
02:0006:0015.814.103.6SW801020
03:0007:0016.214.503.6SW801020
04:0008:0016.114.503.6SW821020
05:0009:0015.814.203.4SW821020
06:0010:0016.915.403.4WSW781021
07:0011:0016.915.703.1WSW771021
08:0012:001817.402.7SW781021
09:0013:0019.319.202.6WSW781022
10:0014:0021.621.602.4WSW671022
11:0015:0024.424.702WSW581022
12:0016:0025.125.90.011.9W581022
13:0017:0026.226.901.8W541022
14:0018:0026.827.802WSW551021
15:0019:0026.928.10.031.9WSW551021
16:0020:0026.527.40.051.8W541021
17:0021:0026.127.20.311.7W571021
18:0022:0024.226.80.020.8W721021
19:0023:0024.327.200.4NE711021
20:0000:0023.225.400.8E731021
21:0001:0022.323.801.1SSE701022
22:0002:0020.321.801.6S851022
23:0003:001920.201.9SSW921022

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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
Lyons — 43.000°, -77.000°, ERA5 grid cell center, 7.2 km from requested point
Time zone
America/New_York
What's shown here
The hourly and daily record for 9 August 2017 specifically — not a monthly average. See the Lyons 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 (2026-07-17). Historical climate data for Lyons, United States (43.00°N, 77.00°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 Lyons, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
MLA
"Historical Climate Data for Lyons, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
BibTeX
@misc{pastclimate,
  author = {PastClimate},
  title = {Historical climate data for Lyons, United States},
  year = {2026},
  note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-17},
  url = {https://www.pastclimate.com/}
}

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