Home / Cajahs Mountain / 15 September 2018
Cajahs Mountain
United States · 15 September 2018
← 14 September 201816 September 2018 →
Average
23.1°C
low 22° · high 24°
Rainfall
14.9mm
rain recorded
Wind
6.9m/s
daily average
Humidity
84.8%
daily average
Cloud
98%
cover
Pressure
1013hPa
daily average
The temperature ranged from 22°C around 20:00 to 24°C around 00:00. Rain was recorded across 14 hours, from around 09:00 to 23:00 (14.9mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
17th percentile
Low temperature
99th percentile
Rainfall
94th percentile
Wind
100th 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 21.4°C, versus 23.1°C on this specific day.
Sun & daylight
Sunrise
07:08
Sunset
19:33
Day length
12h 24m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/New_York.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 04:00 | 24 | 23.7 | 0 | 5.6 | NNE | 77 | 1014 |
| 01:00 | 05:00 | 23.6 | 23.1 | 0 | 5.9 | NNE | 80 | 1014 |
| 02:00 | 06:00 | 23.5 | 22.8 | 0 | 6.2 | NNE | 80 | 1013 |
| 03:00 | 07:00 | 23.5 | 22.7 | 0.01 | 6.5 | NNE | 81 | 1012 |
| 04:00 | 08:00 | 23.5 | 22.5 | 0.01 | 6.6 | NNE | 81 | 1012 |
| 05:00 | 09:00 | 22.8 | 21.8 | 0 | 6.6 | NNE | 84 | 1012 |
| 06:00 | 10:00 | 23.1 | 22.1 | 0 | 6.5 | NNE | 81 | 1013 |
| 07:00 | 11:00 | 23.2 | 22.4 | 0.01 | 6.2 | NNE | 80 | 1012 |
| 08:00 | 12:00 | 23.2 | 22 | 0.02 | 6.7 | NNE | 80 | 1013 |
| 09:00 | 13:00 | 23.1 | 21.9 | 0.1 | 6.9 | NNE | 82 | 1013 |
| 10:00 | 14:00 | 23.5 | 22.4 | 0.08 | 7.1 | NNE | 82 | 1014 |
| 11:00 | 15:00 | 24 | 22.5 | 0.11 | 7.5 | NNE | 79 | 1014 |
| 12:00 | 16:00 | 23.7 | 21.9 | 0.18 | 8 | NE | 82 | 1014 |
| 13:00 | 17:00 | 23.5 | 21.9 | 0.41 | 8 | NE | 84 | 1014 |
| 14:00 | 18:00 | 23.2 | 21.7 | 1.79 | 8 | NE | 87 | 1014 |
| 15:00 | 19:00 | 22.9 | 22.1 | 0.64 | 7.3 | NE | 90 | 1014 |
| 16:00 | 20:00 | 23.1 | 22.5 | 0.93 | 7.4 | NE | 92 | 1013 |
| 17:00 | 21:00 | 23.1 | 23.1 | 0.86 | 6.6 | NNE | 93 | 1013 |
| 18:00 | 22:00 | 22.7 | 22.3 | 1.06 | 6.4 | NE | 89 | 1013 |
| 19:00 | 23:00 | 22.2 | 21.4 | 1.1 | 6.6 | NNE | 89 | 1013 |
| 20:00 | 00:00 | 22 | 21.1 | 1.68 | 6.8 | NE | 90 | 1013 |
| 21:00 | 01:00 | 22.2 | 21.2 | 1.85 | 7 | NE | 90 | 1014 |
| 22:00 | 02:00 | 22.2 | 21.3 | 1.7 | 7.1 | NE | 92 | 1014 |
| 23:00 | 03:00 | 22.1 | 21.2 | 2.36 | 7.2 | NE | 93 | 1014 |
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
- Cajahs Mountain — 35.750°, -81.500°, ERA5 grid cell center, 10.2 km from requested point
- Time zone
- America/New_York
- What's shown here
- The hourly and daily record for 15 September 2018 specifically — not a monthly average. See the Cajahs Mountain 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 (2026-07-17). Historical climate data for Cajahs Mountain, United States (35.75°N, 81.50°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Cajahs Mountain, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Cajahs Mountain, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Cajahs Mountain, 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/}
}Notice something wrong with this data? Report a data issue.