Home / Pacific / 9 September 2023
Pacific
United States · 9 September 2023
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Average
19.4°C
low 13.2° · high 25.2°
Rainfall
0mm
dry day
Wind
2.4m/s
daily average
Humidity
72.3%
daily average
Cloud
28%
cover
Pressure
1020hPa
daily average
The temperature ranged from 13.2°C around 07:00 to 25.2°C around 17:00. No measurable rain was recorded during the day.
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
19th percentile
Low temperature
16th percentile
Rainfall
50th percentile
Wind
62th 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 22.3°C, versus 19.4°C on this specific day.
Sun & daylight
Sunrise
06:39
Sunset
19:20
Day length
12h 42m
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 | 17.2 | 16.5 | 0 | 2.6 | NNE | 81 | 1019 |
| 01:00 | 06:00 | 16.5 | 15.5 | 0 | 2.8 | NNE | 81 | 1019 |
| 02:00 | 07:00 | 16.7 | 15.9 | 0 | 2.7 | NE | 81 | 1019 |
| 03:00 | 08:00 | 16 | 15.3 | 0 | 2.4 | NE | 83 | 1019 |
| 04:00 | 09:00 | 15.4 | 14.9 | 0 | 2.2 | NNE | 88 | 1019 |
| 05:00 | 10:00 | 13.2 | 12.8 | 0 | 1.8 | NNE | 98 | 1020 |
| 06:00 | 11:00 | 13.3 | 12.9 | 0 | 1.9 | NNE | 98 | 1020 |
| 07:00 | 12:00 | 13.2 | 12.7 | 0 | 2 | NNE | 99 | 1021 |
| 08:00 | 13:00 | 15.2 | 15.4 | 0 | 1.6 | NNE | 95 | 1021 |
| 09:00 | 14:00 | 17.6 | 17.7 | 0 | 2.2 | NE | 85 | 1022 |
| 10:00 | 15:00 | 20.9 | 21 | 0 | 2.1 | NNE | 69 | 1022 |
| 11:00 | 16:00 | 22.1 | 21.3 | 0 | 2.7 | NNE | 59 | 1022 |
| 12:00 | 17:00 | 22.8 | 22 | 0 | 2.8 | NNE | 57 | 1022 |
| 13:00 | 18:00 | 23.5 | 22.7 | 0 | 3.1 | NNE | 55 | 1021 |
| 14:00 | 19:00 | 24.3 | 23.1 | 0 | 3.4 | NNE | 53 | 1021 |
| 15:00 | 20:00 | 24.7 | 23.6 | 0 | 3.4 | NNE | 52 | 1020 |
| 16:00 | 21:00 | 24.6 | 23.7 | 0 | 3.1 | NNE | 52 | 1019 |
| 17:00 | 22:00 | 25.2 | 24.4 | 0 | 2.8 | NNE | 48 | 1019 |
| 18:00 | 23:00 | 24.4 | 24 | 0 | 2.5 | N | 53 | 1020 |
| 19:00 | 00:00 | 23 | 23 | 0 | 2.1 | N | 59 | 1020 |
| 20:00 | 01:00 | 21.1 | 21.1 | 0 | 2 | N | 65 | 1020 |
| 21:00 | 02:00 | 19.5 | 19.3 | 0 | 2.1 | N | 72 | 1020 |
| 22:00 | 03:00 | 17.6 | 17.2 | 0 | 2.2 | NNE | 76 | 1020 |
| 23:00 | 04:00 | 17.4 | 16.9 | 0 | 2.1 | NE | 76 | 1020 |
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 9 September 2023 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.