Home / Sylva / 25 September 2025
Sylva
United States · 25 September 2025
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Average
18.7°C
low 16.5°C · high 22.7°C
Rainfall
13mm
rain recorded
Wind
1.5m/s
daily average
Humidity
91.6%
daily average
Cloud
90%
cover
Pressure
1014hPa
daily average
The temperature ranged from 16.5°C around 06:00 to 22.7°C around 17:00. Rain was recorded across 13 hours, from around 00:00 to 18:00 (13mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
47th percentile
Low temperature
87th percentile
Rainfall
93th percentile
Wind
54th 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 17.2°C, versus 18.7°C on this specific day.
Sun & daylight
Sunrise
07:23
Sunset
19:24
Day length
12h 1m
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 | 17.6°C | 19.4°C | 0.97 | 1.1 | SSW | 99 | 1018 |
| 01:00 | 05:00 | 16.7°C | 17.8°C | 0.98 | 1.6 | S | 100 | 1017 |
| 02:00 | 06:00 | 16.8°C | 17.8°C | 0.6 | 1.8 | S | 100 | 1017 |
| 03:00 | 07:00 | 17°C | 18°C | 0.59 | 1.7 | S | 98 | 1016 |
| 04:00 | 08:00 | 16.6°C | 17.8°C | 0.87 | 1.2 | S | 98 | 1015 |
| 05:00 | 09:00 | 16.7°C | 17.7°C | 0.45 | 1.5 | SSW | 96 | 1015 |
| 06:00 | 10:00 | 16.5°C | 18.2°C | 0.2 | 0.7 | SSW | 100 | 1014 |
| 07:00 | 11:00 | 16.7°C | 17.8°C | 0.07 | 1.6 | SSW | 100 | 1015 |
| 08:00 | 12:00 | 16.7°C | 17.8°C | 0.02 | 1.6 | S | 100 | 1015 |
| 09:00 | 13:00 | 17°C | 18°C | 0.01 | 1.8 | SSW | 99 | 1015 |
| 10:00 | 14:00 | 18.3°C | 19.6°C | 0.06 | 1.8 | SSW | 93 | 1016 |
| 11:00 | 15:00 | 19.4°C | 20.9°C | 0.04 | 1.6 | SSW | 90 | 1016 |
| 12:00 | 16:00 | 20°C | 21.5°C | 0.08 | 1.4 | SSW | 84 | 1015 |
| 13:00 | 17:00 | 20.2°C | 21.6°C | 3.31 | 1.7 | SSW | 84 | 1015 |
| 14:00 | 18:00 | 21.6°C | 22.4°C | 0.42 | 2.3 | SW | 76 | 1014 |
| 15:00 | 19:00 | 21.6°C | 22.1°C | 0.12 | 2.7 | SW | 76 | 1013 |
| 16:00 | 20:00 | 22.5°C | 23.4°C | 3.47 | 2.7 | SW | 76 | 1013 |
| 17:00 | 21:00 | 22.7°C | 23.5°C | 0.59 | 2.5 | SW | 73 | 1012 |
| 18:00 | 22:00 | 19.8°C | 22°C | 0.13 | 0.8 | WSW | 88 | 1011 |
| 19:00 | 23:00 | 19.7°C | 21.5°C | 0 | 1.3 | S | 89 | 1013 |
| 20:00 | 00:00 | 18.9°C | 21.1°C | 0 | 0.9 | S | 94 | 1013 |
| 21:00 | 01:00 | 18.9°C | 21.2°C | 0.01 | 0.6 | NNW | 94 | 1013 |
| 22:00 | 02:00 | 18.3°C | 20.3°C | 0.02 | 0.8 | WNW | 96 | 1013 |
| 23:00 | 03:00 | 18.2°C | 20.3°C | 0.02 | 0.7 | WNW | 95 | 1013 |
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 25 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.