Home / Sylva / 25 September 2018

Sylva

United States · 25 September 2018

SylvaUnited States12:56 PM localChange location

← 24 September 201826 September 2018 →

Average

18.2°C

low 16.6° · high 20.8°

Rainfall

7.7mm

rain recorded

Wind

1.9m/s

daily average

Humidity

95.2%

daily average

Cloud

95%

cover

Pressure

1023hPa

daily average

The temperature ranged from 16.6°C around 00:00 to 20.8°C around 17:00. Rain was recorded across 14 hours, from around 03:00 to 17:00 (7.8mm total).

How unusual was this day?

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

High temperature

33th percentile

Low temperature

94th percentile

Rainfall

90th percentile

Wind

79th 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 17°C, versus 18.2°C on this specific day.

Sun & daylight

Sunrise

07:23

Sunset

19:25

Day length

12h 2m

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
00:0004:0016.617.30.042.1ESE991024
01:0005:0016.717.50.022.2ESE1001024
02:0006:0016.717.50.042SE1001024
03:0007:0016.917.90.21.9SE1001024
04:0008:001717.90.162.1SE991023
05:0009:0016.817.80.151.8SE991023
06:0010:0017.118.40.091.5SE981023
07:0011:0017.218.30.131.6SE981023
08:0012:0017.218.20.641.9SSE981024
09:0013:0017.218.60.691.6SSE1001024
10:0014:0017.318.50.921.8SSE1001024
11:0015:0018.419.30.281.7SSE881024
12:0016:0018.218.60.222.4SSE891024
13:0017:0018.919.70.222.3S901023
14:0018:0019.420.40.12.1S891023
15:0019:0019.620.61.092.6S911022
16:0020:0020.2212.572.6S861022
17:0021:0020.821.80.12.5S831021
18:0022:0020.422.60.082S971021
19:0023:0020.122.10.011.9SSE951021
20:0000:0019.421.701.1SSE951022
21:0001:0019.120.901.6SSE941022
22:0002:0018.520.201.5SSE961022
23:0003:001819.801.4SSE1001023

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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
Sylva — 35.250°, -83.250°, ERA5 grid cell center, 13.9 km from requested point
Time zone
America/New_York
What's shown here
The hourly and daily record for 25 September 2018 specifically — not a monthly average. See the Sylva 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 Sylva, United States (35.25°N, 83.25°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 Sylva, 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 Sylva, 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 Sylva, 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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