Home / Pacific / 8 September 2018
Pacific
United States · 8 September 2018
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Average
18.9°C
low 17.4° · high 21.5°
Rainfall
82.9mm
rain recorded
Wind
5.1m/s
daily average
Humidity
92.2%
daily average
Cloud
99%
cover
Pressure
1013hPa
daily average
The temperature ranged from 17.4°C around 14:00 to 21.5°C around 02:00. Rain was recorded across 14 hours, from around 00:00 to 13:00 (82.9mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
1th percentile
Low temperature
58th percentile
Rainfall
100th 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 21.9°C, versus 18.9°C on this specific day.
Sun & daylight
Sunrise
06:38
Sunset
19:22
Day length
12h 44m
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 | 21.5 | 23.5 | 2.1 | 3.3 | NE | 100 | 1016 |
| 01:00 | 06:00 | 21.4 | 23 | 2.2 | 4 | NE | 100 | 1015 |
| 02:00 | 07:00 | 21.5 | 22.8 | 3.79 | 4.4 | NE | 100 | 1014 |
| 03:00 | 08:00 | 21.3 | 22 | 4.4 | 5.1 | NNE | 100 | 1014 |
| 04:00 | 09:00 | 21.4 | 21.7 | 4.81 | 5.8 | NNE | 100 | 1013 |
| 05:00 | 10:00 | 19.1 | 19.2 | 5.63 | 4.6 | NNE | 100 | 1013 |
| 06:00 | 11:00 | 19 | 18.9 | 7.09 | 4.8 | NNE | 100 | 1013 |
| 07:00 | 12:00 | 18.5 | 18 | 8.54 | 5.1 | NNE | 100 | 1013 |
| 08:00 | 13:00 | 18.2 | 17.1 | 10.38 | 5.6 | NE | 100 | 1013 |
| 09:00 | 14:00 | 17.8 | 16.4 | 11.53 | 5.8 | NE | 100 | 1013 |
| 10:00 | 15:00 | 17.8 | 16.2 | 9.58 | 5.7 | NE | 95 | 1013 |
| 11:00 | 16:00 | 17.7 | 16 | 6.62 | 5.9 | NE | 96 | 1013 |
| 12:00 | 17:00 | 18 | 16.8 | 3.91 | 5.2 | NNE | 95 | 1013 |
| 13:00 | 18:00 | 17.4 | 16.3 | 2.13 | 5 | NNE | 96 | 1013 |
| 14:00 | 19:00 | 17.4 | 15.1 | 0.09 | 6.7 | NNE | 97 | 1013 |
| 15:00 | 20:00 | 17.5 | 16 | 0.04 | 5.6 | NNE | 98 | 1013 |
| 16:00 | 21:00 | 18 | 15.9 | 0.01 | 6.5 | NNE | 95 | 1012 |
| 17:00 | 22:00 | 19.1 | 17.5 | 0.03 | 4.8 | NNE | 79 | 1013 |
| 18:00 | 23:00 | 18.8 | 17 | 0.01 | 4.7 | NNE | 79 | 1013 |
| 19:00 | 00:00 | 19 | 17.2 | 0 | 4.7 | NNE | 77 | 1013 |
| 20:00 | 01:00 | 18.7 | 16.9 | 0 | 4.5 | NE | 76 | 1013 |
| 21:00 | 02:00 | 18.6 | 16.7 | 0 | 4.6 | NNE | 75 | 1014 |
| 22:00 | 03:00 | 18 | 16 | 0 | 4.7 | NNE | 78 | 1014 |
| 23:00 | 04:00 | 17.8 | 15.8 | 0 | 4.7 | NNE | 78 | 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
- Pacific — 38.500°, -90.750°, ERA5 grid cell center, 2.1 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 Pacific 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 Pacific, United States (38.50°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 Pacific, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 16, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Pacific, 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 Pacific, 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.