Home / Chalmette / 30 August 2018
Chalmette
United States · 30 August 2018
← 29 August 201831 August 2018 →
Average
26.7°C
low 25.4°C · high 28.6°C
Rainfall
13.6mm
rain recorded
Wind
2.7m/s
daily average
Humidity
84.9%
daily average
Cloud
86%
cover
Pressure
1017hPa
daily average
The temperature ranged from 25.4°C around 05:00 to 28.6°C around 17:00. Rain was recorded across 13 hours, from around 02:00 to 20:00 (13.6mm total).
How unusual was this day?
Compared against the same 135 calendar days (±7 days) across the other 9 years on file.
High temperature
16th percentile
Low temperature
28th percentile
Rainfall
86th percentile
Wind
50th 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 28°C, versus 26.7°C on this specific day.
Sun & daylight
Sunrise
06:35
Sunset
19:24
Day length
12h 49m
Hour by hour
Temperature (line) and hourly rainfall (bars), local time — America/Chicago.
Cumulative rainfall through the day.
| Local time | UTC | Temp | Feels | Rain mm | Wind m/s | Dir | Humidity % | Pressure hPa |
|---|---|---|---|---|---|---|---|---|
| 00:00 | 05:00 | 26.5°C | 30.9°C | 0.01 | 2.1 | E | 87 | 1018 |
| 01:00 | 06:00 | 26.2°C | 30.6°C | 0.01 | 1.9 | E | 87 | 1018 |
| 02:00 | 07:00 | 26.1°C | 30.2°C | 0.76 | 2.2 | ESE | 87 | 1018 |
| 03:00 | 08:00 | 26.5°C | 30.7°C | 0.2 | 2.3 | SE | 87 | 1017 |
| 04:00 | 09:00 | 26.1°C | 30.2°C | 0.03 | 2.2 | SSE | 87 | 1017 |
| 05:00 | 10:00 | 25.4°C | 29.7°C | 0.03 | 2.1 | SSE | 91 | 1017 |
| 06:00 | 11:00 | 25.7°C | 30.3°C | 0.05 | 1.4 | SSE | 89 | 1017 |
| 07:00 | 12:00 | 25.4°C | 30.1°C | 0.07 | 1.3 | SSE | 90 | 1018 |
| 08:00 | 13:00 | 26.1°C | 31.6°C | 0.78 | 0.4 | ESE | 88 | 1018 |
| 09:00 | 14:00 | 26.2°C | 31.2°C | 2.99 | 1 | N | 87 | 1018 |
| 10:00 | 15:00 | 26.9°C | 31.1°C | 1.2 | 2.1 | NNE | 84 | 1019 |
| 11:00 | 16:00 | 27.5°C | 31.8°C | 0.75 | 2.7 | NE | 83 | 1019 |
| 12:00 | 17:00 | 27.4°C | 31.1°C | 0.53 | 3.1 | NE | 83 | 1018 |
| 13:00 | 18:00 | 27°C | 30.3°C | 0.29 | 3.2 | ENE | 81 | 1018 |
| 14:00 | 19:00 | 27.1°C | 30.6°C | 1.09 | 3 | ENE | 81 | 1017 |
| 15:00 | 20:00 | 27.9°C | 31.3°C | 2.35 | 3.2 | ENE | 78 | 1016 |
| 16:00 | 21:00 | 28.1°C | 30.8°C | 0.05 | 4.2 | E | 77 | 1016 |
| 17:00 | 22:00 | 28.6°C | 31.2°C | 0 | 5 | ESE | 79 | 1015 |
| 18:00 | 23:00 | 28.4°C | 31.5°C | 0.31 | 4 | ESE | 79 | 1015 |
| 19:00 | 00:00 | 26.9°C | 30°C | 1.43 | 3.6 | E | 83 | 1015 |
| 20:00 | 01:00 | 26.5°C | 30.1°C | 0.6 | 2.9 | E | 84 | 1015 |
| 21:00 | 02:00 | 26.4°C | 29.7°C | 0.03 | 3.6 | E | 87 | 1016 |
| 22:00 | 03:00 | 25.8°C | 29.2°C | 0.01 | 3.3 | ESE | 89 | 1016 |
| 23:00 | 04:00 | 25.8°C | 29.4°C | 0.01 | 2.9 | E | 89 | 1016 |
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
- Chalmette — 30.000°, -90.000°, ERA5 grid cell center, 7.2 km from requested point
- Time zone
- America/Chicago
- What's shown here
- The hourly and daily record for 30 August 2018 specifically — not a monthly average. See the Chalmette 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 (2026-07-19). Historical climate data for Chalmette, United States (30.00°N, 90.00°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Chalmette, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 19, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Chalmette, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 19, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Chalmette, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-19},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.