Home / Potosi / 8 September 2018
Potosi
United States · 8 September 2018
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Average
19.3°C
low 17.2° · high 21.5°
Rainfall
108.7mm
rain recorded
Wind
4.6m/s
daily average
Humidity
93.5%
daily average
Cloud
100%
cover
Pressure
1012hPa
daily average
The temperature ranged from 17.2°C around 23:00 to 21.5°C around 02:00. Rain was recorded across 16 hours, from around 00:00 to 18:00 (108.7mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
1th percentile
Low temperature
59th percentile
Rainfall
100th percentile
Wind
99th 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 21.7°C, versus 19.3°C on this specific day.
Sun & daylight
Sunrise
06:38
Sunset
19:21
Day length
12h 43m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Chicago.
Cumulative rainfall through the day.
| Local time | UTC | Temp °C | Feels °C | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 21.4 | 23.2 | 0.22 | 3.7 | NE | 100 | 1015 |
| 01:00 | 06:00 | 21.5 | 23.2 | 0.73 | 3.7 | NE | 99 | 1014 |
| 02:00 | 07:00 | 21.5 | 23.4 | 3.16 | 3.4 | NE | 99 | 1014 |
| 03:00 | 08:00 | 21.3 | 23.3 | 5.67 | 3.3 | NE | 100 | 1013 |
| 04:00 | 09:00 | 21.3 | 23.3 | 7.68 | 3.3 | NE | 100 | 1012 |
| 05:00 | 10:00 | 21 | 22.3 | 10.58 | 4.1 | NE | 99 | 1011 |
| 06:00 | 11:00 | 21.1 | 22.8 | 16.65 | 3.6 | NE | 100 | 1011 |
| 07:00 | 12:00 | 21.2 | 22.3 | 21.65 | 4.5 | NNE | 100 | 1011 |
| 08:00 | 13:00 | 20.7 | 20.7 | 21.04 | 5.8 | NNE | 100 | 1011 |
| 09:00 | 14:00 | 19.7 | 18.3 | 13.84 | 7.1 | NNE | 100 | 1011 |
| 10:00 | 15:00 | 19.1 | 17.1 | 4.72 | 7 | NNE | 96 | 1012 |
| 11:00 | 16:00 | 18.7 | 17.2 | 1.4 | 6.2 | NNE | 97 | 1012 |
| 12:00 | 17:00 | 18.8 | 18.1 | 0.62 | 5 | NNE | 95 | 1012 |
| 13:00 | 18:00 | 17.7 | 16.9 | 0.17 | 4.6 | NNE | 95 | 1013 |
| 14:00 | 19:00 | 17.5 | 15.9 | 0.03 | 5.5 | NNE | 94 | 1012 |
| 15:00 | 20:00 | 17.5 | 16.2 | 0.08 | 4.9 | NNE | 94 | 1012 |
| 16:00 | 21:00 | 17.9 | 16.3 | 0.06 | 5.4 | NNE | 92 | 1012 |
| 17:00 | 22:00 | 18.3 | 17.4 | 0.15 | 4.1 | NNE | 86 | 1013 |
| 18:00 | 23:00 | 17.8 | 16.6 | 0.19 | 4.2 | NNE | 85 | 1013 |
| 19:00 | 00:00 | 17.9 | 16.7 | 0.06 | 4.2 | NNE | 85 | 1013 |
| 20:00 | 01:00 | 17.8 | 16.5 | 0.02 | 4.1 | NNE | 84 | 1013 |
| 21:00 | 02:00 | 17.8 | 16.4 | 0 | 4.1 | NNE | 82 | 1013 |
| 22:00 | 03:00 | 17.3 | 15.6 | 0 | 4.5 | NNE | 82 | 1013 |
| 23:00 | 04:00 | 17.2 | 15.5 | 0 | 4.3 | NNE | 82 | 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
- Potosi — 38.000°, -90.750°, ERA5 grid cell center, 7.8 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 8 September 2018 specifically — not a monthly average. See the Potosi 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 (2026-07-16). Historical climate data for Potosi, United States (38.00°N, 90.75°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Potosi, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 16, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Potosi, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 16, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Potosi, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-16},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.