Home / Sylva / 27 September 2025
Sylva
United States · 27 September 2025
← 26 September 202528 September 2025 →
Average
17.5°C
low 14.6°C · high 22.3°C
Rainfall
3.1mm
rain recorded
Wind
0.8m/s
daily average
Humidity
85.8%
daily average
Cloud
62%
cover
Pressure
1014hPa
daily average
The temperature ranged from 14.6°C around 23:00 to 22.3°C around 14:00. Rain was recorded across 10 hours, from around 01:00 to 18:00 (3.1mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
44th percentile
Low temperature
70th percentile
Rainfall
82th percentile
Wind
3th 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 17.5°C on this specific day.
Sun & daylight
Sunrise
07:25
Sunset
19:22
Day length
11h 57m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/New_York.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 04:00 | 17.3°C | 18.7°C | 0.06 | 0.9 | ESE | 92 | 1013 |
| 01:00 | 05:00 | 16.8°C | 18°C | 0.15 | 0.8 | ENE | 93 | 1013 |
| 02:00 | 06:00 | 16.4°C | 17.6°C | 0.04 | 0.8 | NE | 94 | 1013 |
| 03:00 | 07:00 | 16.1°C | 17.4°C | 0.25 | 0.7 | NE | 95 | 1012 |
| 04:00 | 08:00 | 15.9°C | 17.3°C | 0.38 | 0.6 | NE | 97 | 1013 |
| 05:00 | 09:00 | 15.7°C | 17.3°C | 0.02 | 0.3 | NNE | 98 | 1012 |
| 06:00 | 10:00 | 15.5°C | 16.8°C | 0.01 | 0.6 | NNE | 99 | 1013 |
| 07:00 | 11:00 | 15.1°C | 16.1°C | 0.03 | 0.9 | NNE | 99 | 1014 |
| 08:00 | 12:00 | 14.9°C | 15.9°C | 0 | 0.7 | N | 99 | 1014 |
| 09:00 | 13:00 | 15.8°C | 17.2°C | 0 | 0.4 | WNW | 97 | 1014 |
| 10:00 | 14:00 | 17.9°C | 19.5°C | 0 | 0.7 | SSW | 90 | 1015 |
| 11:00 | 15:00 | 19.1°C | 20.5°C | 0.04 | 0.6 | S | 81 | 1015 |
| 12:00 | 16:00 | 19.8°C | 21.5°C | 0.14 | 0.1 | S | 75 | 1015 |
| 13:00 | 17:00 | 22.2°C | 23.2°C | 0.14 | 0.2 | W | 58 | 1015 |
| 14:00 | 18:00 | 22.3°C | 22.9°C | 0.15 | 0.5 | WSW | 56 | 1014 |
| 15:00 | 19:00 | 21.5°C | 21.9°C | 0.3 | 0.7 | W | 58 | 1013 |
| 16:00 | 20:00 | 18.1°C | 19°C | 0.13 | 0.8 | NW | 79 | 1014 |
| 17:00 | 21:00 | 18°C | 19.2°C | 0.71 | 0.9 | NW | 87 | 1014 |
| 18:00 | 22:00 | 18.3°C | 18.4°C | 0.48 | 1.7 | N | 76 | 1014 |
| 19:00 | 23:00 | 18.1°C | 18.4°C | 0.02 | 1.3 | N | 77 | 1015 |
| 20:00 | 00:00 | 17.2°C | 17.7°C | 0.01 | 1.2 | NNE | 83 | 1015 |
| 21:00 | 01:00 | 16.9°C | 17.5°C | 0 | 1.3 | NNE | 86 | 1015 |
| 22:00 | 02:00 | 15.3°C | 15.7°C | 0 | 1.5 | N | 94 | 1016 |
| 23:00 | 03:00 | 14.6°C | 14.9°C | 0 | 1.4 | N | 98 | 1016 |
Nearby cities
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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 27 September 2025 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
PastClimate (2026-07-21). 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/
PastClimate. (2026). Historical climate data for Sylva, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 21, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Sylva, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 21, 2026, www.pastclimate.com.
@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 2026-07-21},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.